Jane Ingham
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Rose Marie "Jane" Ingham ( ; 15 August 189710 September 1982) was an English
botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...
and scientific translator. She was appointed research assistant to Joseph Hubert Priestley in the Botany Department at the
University of Leeds The University of Leeds is a public research university in Leeds, West Yorkshire, England. It was established in 1874 as the Yorkshire College of Science. In 1884, it merged with the Leeds School of Medicine (established 1831) and was renamed Y ...
, and together, they were the first to separate
cell wall A cell wall is a structural layer that surrounds some Cell type, cell types, found immediately outside the cell membrane. It can be tough, flexible, and sometimes rigid. Primarily, it provides the cell with structural support, shape, protection, ...
s from the root tip of
broad beans ''Vicia faba'', commonly known as the broad bean, fava bean, or faba bean, is a species of vetch, a flowering plant in the pea and bean family Fabaceae. It is widely cultivated as a crop for human consumption, and also as a cover crop. Vari ...
. They analysed these cell walls and concluded that they contained
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residue (biochemistry), residues. Proteins perform a vast array of functions within organisms, including Enzyme catalysis, catalysing metab ...
. She carried out experiments on the cork layer of trees to study how cells function under a change of orientation and found profound differences in cell division and elongation in the epidermal layer of plants. At Leeds, Ingham was appointed subwarden of
Weetwood Hall Weetwood is an area between Headingley and Meanwood in north-west Leeds, West Yorkshire, England. It is bounded on the north by the A6120 (Outer Ring Road), on the west by the A660 (Otley Road), on the east by Meanwood Beck and to the south ...
, and honorary secretary of the BritishItalian League. In 1930, she joined the Imperial Bureau of Plant and Crop Genetics at the School of Agriculture in
Cambridge Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...
, England, as a scientific officer and translator. The bureau was responsible for publishing a series of abstract journals on various aspects of crop breeding and genetics. In 1932, she married
Albert Ingham Albert Edward Ingham (3 April 1900 – 6 September 1967) was an English mathematician. Early life and education Ingham was born in Northampton. He went to Stafford Grammar School and began his studies at Trinity College, Cambridge in January ...
, then a fellow and director of studies at King's College, Cambridge. Ingham spent the war years in
Princeton, New Jersey The Municipality of Princeton is a Borough (New Jersey), borough in Mercer County, New Jersey, United States. It was established on January 1, 2013, through the consolidation of the Borough of Princeton, New Jersey, Borough of Princeton and Pri ...
, with her two sons, not wishing to return to England after travelling to the US just before the outbreak of World War II. In the last years of her life, she and her husband travelled extensively, and in 1982, she died at Cambridge.


Early life

Ingham was born on , at Cromer House, Cromer Terrace, Leeds, and baptised an
Anglican Anglicanism, also known as Episcopalianism in some countries, is a Western Christianity, Western Christian tradition which developed from the practices, liturgy, and identity of the Church of England following the English Reformation, in the ...
in the
Church of England The Church of England (C of E) is the State religion#State churches, established List of Christian denominations, Christian church in England and the Crown Dependencies. It is the mother church of the Anglicanism, Anglican Christian tradition, ...
at
Donhead St Andrew Donhead St Andrew is a village and Civil parishes in England, civil parish in Wiltshire, England, on the River Nadder. It lies east of the Dorset market town of Shaftesbury. The parish includes the hamlets of West End, Milkwell and (on the A30 ...
,
Wiltshire Wiltshire (; abbreviated to Wilts) is a ceremonial county in South West England. It borders Gloucestershire to the north, Oxfordshire to the north-east, Berkshire to the east, Hampshire to the south-east, Dorset to the south, and Somerset to ...
, on 14September 1897. She was the youngest daughter of Helen Mary TupperCarey, , and Albert Darell. They had married at Donhead StAndrew on 16May 1890. Helen Mary was the daughter of Reverend Horace Edward Chapman, a former rector of Donhead StAndrew, and Adelaide Maria, néeFletcher. Ingham's father was the son of the Reverend Tupper Carey and Helen Jane, néeSandeman. He was educated at
Eton Eton most commonly refers to Eton College, a public school in Eton, Berkshire, England. Eton may also refer to: Places *Eton, Berkshire, a town in Berkshire, England *Eton, Georgia, a town in the United States *Éton, a commune in the Meuse depa ...
and Christ Church, Oxford, and trained at
Cuddesdon Theological College Ripon College Cuddesdon (RCC) is a Church of England theological college in Cuddesdon, a village outside Oxford, England. The College trains men and women for ministry in the Church of England: stipendiary, non-stipendiary, local ordained and ...
. He was
curate A curate () is a person who is invested with the ''care'' or ''cure'' () of souls of a parish. In this sense, ''curate'' means a parish priest; but in English-speaking countries the term ''curate'' is commonly used to describe clergy who are as ...
of Leeds before being appointed rector of St Margaret's Church,
Lowestoft Lowestoft ( ) is a coastal town and civil parish in the East Suffolk (district), East Suffolk district of Suffolk, England.OS Explorer Map OL40: The Broads: (1:25 000) : . As the List of extreme points of the United Kingdom, most easterly UK se ...
. In 1910, he was appointed
canon residentiary Canon () is a Christian title usually used to refer to a member of certain bodies in subject to an ecclesiastical rule. Originally, a canon was a cleric living with others in a clergy house or, later, in one of the houses within the precinct of ...
of
York York is a cathedral city in North Yorkshire, England, with Roman Britain, Roman origins, sited at the confluence of the rivers River Ouse, Yorkshire, Ouse and River Foss, Foss. It has many historic buildings and other structures, such as a Yor ...
, and later, became
vicar A vicar (; Latin: '' vicarius'') is a representative, deputy or substitute; anyone acting "in the person of" or agent for a superior (compare "vicarious" in the sense of "at second hand"). Linguistically, ''vicar'' is cognate with the English p ...
of
Huddersfield Huddersfield is a town in the Metropolitan Borough of Kirklees in West Yorkshire, England. It is the administrative centre and largest settlement in the Kirklees district. The town is in the foothills of the Pennines. The River Holme's confl ...
. From 1938, he was Chaplain to the King and at
Monte Carlo Monte Carlo ( ; ; or colloquially ; , ; ) is an official administrative area of Monaco, specifically the Ward (country subdivision), ward of Monte Carlo/Spélugues, where the Monte Carlo Casino is located. Informally, the name also refers to ...
. Despite his given name being Albert Darell, he was known as "Tupper" to his friends and was described by John Gilbert Lockhart in
Cosmo Gordon Lang William Cosmo Gordon Lang, 1st Baron Lang of Lambeth, (31 October 1864 – 5 December 1945) was a Scottish Anglican prelate who served as Archbishop of York (1908–1928) and Archbishop of Canterbury (1928–1942). His elevation to Archbishop ...
's biography as follows: Ingham had four siblings. Her eldest sister, Jacqueline Marjorie, married the Reverend Edgar James Mitchell, and after their marriage, they undertook
missionary A missionary is a member of a Religious denomination, religious group who is sent into an area in order to promote its faith or provide services to people, such as education, literacy, social justice, health care, and economic development.Thoma ...
work in the
Far East The Far East is the geographical region that encompasses the easternmost portion of the Asian continent, including North Asia, North, East Asia, East and Southeast Asia. South Asia is sometimes also included in the definition of the term. In mod ...
. Ingham's elder sister, Edith, known as "Betty" to her friends and family, married the author
Michael Sadleir Michael Sadleir (25 December 1888 – 13 December 1957), born Michael Thomas Harvey Sadler, was a British publisher, novelist, book collector, and Bibliography, bibliographer. Biography Michael Sadleir was born in Oxford, Oxford, England, the ...
. Sadleir was the only son of Sir
Michael Ernest Sadler Sir Michael Ernest Sadler (3 July 1861 – 14 October 1943) was an English historian, educationalist and university administrator. He worked at Victoria University of Manchester and was the vice-chancellor of the University of Leeds. He was al ...
, a former
vice-chancellor A vice-chancellor (commonly called a VC) serves as the chief executive of a university in the United Kingdom, New Zealand, Australia, Nepal, India, Bangladesh, Malaysia, Nigeria, Pakistan, Sri Lanka, South Africa, Kenya, other Commonwealth of Nati ...
of the University of Leeds. Her elder brother, Humphrey Darell, was a tea planter in
British East Africa East Africa Protectorate (also known as British East Africa) was a British protectorate in the African Great Lakes, occupying roughly the same area as present-day Kenya, from the Indian Ocean inland to the border with Uganda in the west. Cont ...
before the outbreak of
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
. He was commissioned a
lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
in the
King's African Rifles The King's African Rifles (KAR) was a British Colonial Auxiliary Forces regiment raised from Britain's East African colonies in 1902. It primarily carried out internal security duties within these colonies along with military service elsewher ...
, but was severely wounded in the right thigh during the East African campaign. He married Marjorie Gertrude Drakes, née Bredin, the widow of Charles Henry Drakes. In later life, he worked for the
Colonial Service The Colonial Service, also known as His/Her Majesty's Colonial Service and replaced in 1954 by Her Majesty's Overseas Civil Service (HMOCS), was the British government service that administered most of Britain's overseas possessions, under the aut ...
in
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
and was appointed a
Companion of the Imperial Service Order The Imperial Service Order was established by King Edward VII in August 1902. It was awarded on retirement to the administration and clerical staff of the Civil Service throughout the British Empire for long and meritorious service. Normally a pe ...
in the Queen's
1959 Birthday Honours The Queen's Birthday Honours 1959 were appointments in many of the Commonwealth realms of Queen Elizabeth II to various orders and honours to reward and highlight good works by citizens of those countries. The appointments were made to celebrate ...
. Her younger brother, Peter Charles Sandeman, was a captain in the
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
. He married Anne Ethel Violet Montagu Dundas, the eldest daughter of Robert Neville Dundas and Cecil Mary, née Lancaster.


Education

Ingham was educated at Claire House School, an all girl school in North Parade, Lowestoft, which specialised in the teaching of French. At the age of ten, she gained a prize in preliminary French examinations that were organised by the National Society of French Professors in England. She competed against candidates from the "best girls' schools in England", the written tests consisting of translation and composition (prose and poetry), essay, and questions on 17th to 19thcentury French literature. In the same year, she performed as ''Philaminte'' in the school's production of three scenes from
Molière Jean-Baptiste Poquelin (; 15 January 1622 (baptised) – 17 February 1673), known by his stage name Molière (, ; ), was a French playwright, actor, and poet, widely regarded as one of the great writers in the French language and world liter ...
's ''
Les Femmes Savantes ''Les Femmes savantes'' (, ''The Learned Ladies'') is a comedy by Molière in five acts, written in verse. A satire on academic pretension, female education, and '' préciosité'' (French for preciosity), it was one of his most popular comedies ...
''. Ingham showed an early interest in
botany Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...
. In her youth, she would collect wildflowers to display at local
parish A parish is a territorial entity in many Christianity, Christian denominations, constituting a division within a diocese. A parish is under the pastoral care and clerical jurisdiction of a priest#Christianity, priest, often termed a parish pries ...
shows. Her grandmother, Helen Jane Carey, was a keen amateur botanist and specimen collector, a popular and fashionable pastime in
Victorian England In the history of the United Kingdom and the British Empire, the Victorian era was the reign of Queen Victoria, from 20 June 1837 until her death on 22 January 1901. Slightly different definitions are sometimes used. The era followed th ...
. In 1916, Ingham entered the University of Leeds to study botany and, within three years, was a research student in the botany department at Leeds, studying water absorption at the growing point of plant roots. In 1919, Ingham studied general zoology at the Citadel Hill Laboratory of the
Marine Biological Association The Marine Biological Association of the United Kingdom (MBA) is a learned society with a scientific laboratory that undertakes research in marine biology. The organisation was founded in 1884 and has been based in Plymouth since the Citadel Hil ...
, Plymouth. Annie Redman King, her friend from
Weetwood Hall Weetwood is an area between Headingley and Meanwood in north-west Leeds, West Yorkshire, England. It is bounded on the north by the A6120 (Outer Ring Road), on the west by the A660 (Otley Road), on the east by Meanwood Beck and to the south ...
in Leeds, was a
Ray Lankester Sir Edwin Ray Lankester (15 May 1847 – 13 August 1929) was a British zoologist.New International Encyclopaedia. An invertebrate zoologist and evolutionary biologist, he held chairs at University College London and Oxford University. He was th ...
investigator at the laboratory.


Career

In January 1922, Ingham was appointed a research assistant in the botany department, where Joseph Hubert Priestley was Dean of the Faculty of Science. She and Priestley were the first to isolate cell walls from
meristem In cell biology, the meristem is a structure composed of specialized tissue found in plants, consisting of stem cells, known as meristematic cells, which are undifferentiated cells capable of continuous cellular division. These meristematic c ...
atic tissues in ''
Vicia faba ''Vicia faba'', commonly known as the broad bean, fava bean, or faba bean, is a species of vetch, a flowering plant in the pea and bean family Fabaceae. It is widely cultivated as a crop for human consumption, and also as a cover crop. Vari ...
'' (broad beans). They analysed the walls for protein,
cellulose Cellulose is an organic compound with the chemical formula, formula , a polysaccharide consisting of a linear chain of several hundred to many thousands of glycosidic bond, β(1→4) linked glucose, D-glucose units. Cellulose is an important s ...
, and
pectin Pectin ( ': "congealed" and "curdled") is a heteropolysaccharide, a structural polymer contained in the primary lamella, in the middle lamella, and in the cell walls of terrestrial plants. The principal chemical component of pectin is galact ...
, and concluded that the walls contained protein. They also studied when cellulose is first produced by plants, the differences in shoot and root development, and the role of the
cork cambium Cork cambium (: cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis. It is one of the many layers of bark, between the cork and primary phloem. The cork cambium is a lateral meristem and is responsible for s ...
. These
plant physiology Plant physiology is a subdiscipline of botany concerned with the functioning, or physiology, of plants. Plant physiologists study fundamental processes of plants, such as photosynthesis, respiration, plant nutrition, plant hormone functions, tr ...
studies were followed by two ''
New Phytologist ''New Phytologist'' is a peer-reviewed scientific journal published on behalf of the New Phytologist Foundation by Wiley-Blackwell. It covers all aspects of botany and was established in 1902 by Arthur Tansley, who served as editor until 1931. M ...
'' papers. She later provided unpublished results from these experiments on broad bean embryos to the British botanist William Pearsall. Described as a "brilliant scholar", she was awarded a MSc degree on 28June 1928, for her research work and thesis titled '. In February 1930, Ingham joined the Imperial Bureau of Plant and Crop Genetics, at the
Plant Breeding Institute The Plant Breeding Institute was an agricultural research organisation in Cambridge in the United Kingdom between 1912 and 1987. Founding The institute was established in 1912 as part of the School of Agriculture at the University of Cambridge. ...
, Cambridge, as a translator and scientific officer. Sir
Rowland Biffen Sir Rowland Harry Biffen FRS (28 May 1874, in Cheltenham – 12 July 1949) was a British botanist, mycologist, geneticist and a professor of agricultural botany at the University of Cambridge who worked on breeding wheat varieties. He was als ...
was the first director of the Cambridge bureau, and her supervisor, Penrhyn Stanley Hudson, was deputy director. She was fluent in French, Italian, German and Swedish, and as a whole, the bureau had been capable of dealing with Spanish, Dutch, and Russian. Abstracts were written on various aspects of plant breeding and genetics, with some of the foreign language papers requiring more complete translations. These abstracts were published in a quarterly journal called ''Plant Breeding Abstracts''. In 1931, she attended the eighth conference of the
Association of Special Libraries and Information Bureaux ASLIB: The Association for Information Management (often stylized ''Aslib'') was a British association of special libraries and information centres. It was founded in England in 1924 as the Association of Special Libraries and Information Bureaux. ...
(ASLIB) at Oxford, where progress on ASLIB's newlyformed panel of expert translators was discussed. After her marriage, she worked from home translating most of the German documents, and in 1939, was put in charge of the bureau after Hudson fell ill.


Personal life

Around 1922, Ingham sat for a portrait by William Roberts, the "English Cubist" artist. The finished painting was titled "Portrait of Miss Jane TupperCarey" and was shown for the first time in November 1923 at
New Chenil Galleries The Chenil Gallery (often referred to as the Chenil Galleries, or New Chenil Galleries) was a British art gallery and sometime-music studio in Chelsea, London between 1905 and 1927, and later the location of various businesses referencing this ear ...
, Chelsea. By 1926, she had been appointed subwarden at Weetwood Hall, the then university hall of residence for women students. In the same year, she was appointed the first honorary secretary of the Leeds branch of the BritishItalian League. The League's aims were to found a chair in Italian at the University of Leeds and foster relations between the two countries. In the late 1920s, Ingham joined the Leeds University Amateurs, the university's
amateur dramatics Amateur theatre, also known as amateur dramatics, is theatre performed by amateur actors and singers. Amateur theatre groups may stage plays, revues, musicals, light opera, pantomime or variety shows, and do so for the social activity as well as f ...
society, acting in several wellreceived roles, such as ''Sybil Bumont'' in ''
The Watched Pot ''The Watched Pot'' (alternative title ''The Mistress of Briony'') is a romantic comedy play by Saki and Charles Maude published in 1924. The play, all three acts of which are set in the fictional English country house of Briony Manor, revolves a ...
''. In December 1928, she took part in a fashion show of dresses through the ages at the Albion Hall, Leeds, in aid of StFaith's Homes. She wore a high-waisted, skintight coat of red cloth edged with fur, a long blue skirt trimmed with six rows of black velvet, and a feather
toque A toque ( or ) is a type of hat with a narrow brim or no brim at all. Toques were popular from the 13th to the 16th century in Europe, especially France. They were revived in the 1930s; nowadays, they are primarily known as the traditional hea ...
. Her appearance was greeted with "shrieks of laughter" from the audience. She married
Albert Ingham Albert Edward Ingham (3 April 1900 – 6 September 1967) was an English mathematician. Early life and education Ingham was born in Northampton. He went to Stafford Grammar School and began his studies at Trinity College, Cambridge in January ...
on 6July 1932 at St Edward's Church, Cambridge, in a private ceremony attended only by her parents, sister Edith, brotherinlaw Michael Sadleir, who gave her away, and Redman King. They had met after he had been appointed reader in
mathematical analysis Analysis is the branch of mathematics dealing with continuous functions, limit (mathematics), limits, and related theories, such as Derivative, differentiation, Integral, integration, measure (mathematics), measure, infinite sequences, series ( ...
at the University of Leeds in 1926. Their engagement announcement in May 1932 had come as surprise to their circle of friends in Leeds, as there had been no indication that they were romantically involved. However, they had been quietly engaged with plans to announce it after lectures ended. In July 1939, Albert was awarded a Leverhulme Research Fellowship to study
analytic number theory In mathematics, analytic number theory is a branch of number theory that uses methods from mathematical analysis to solve problems about the integers. It is often said to have begun with Peter Gustav Lejeune Dirichlet's 1837 introduction of Dir ...
at the
Institute for Advanced Study The Institute for Advanced Study (IAS) is an independent center for theoretical research and intellectual inquiry located in Princeton, New Jersey. It has served as the academic home of internationally preeminent scholars, including Albert Ein ...
(IAS) in
Princeton Princeton University is a private Ivy League research university in Princeton, New Jersey, United States. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the Unit ...
, New Jersey. At that point, they had two sons, Michael Frank and Stephen Darell, and the entire family sailed from
Liverpool Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...
to New York on 1September 1939. However, just two days into their voyage, Britain declared war on Germany. They were hesitant to bring their family back due to reports from Europe containing speculation of imminent
total war Total war is a type of warfare that includes any and all (including civilian-associated) resources and infrastructure as legitimate military targets, mobilises all of the resources of society to fight the war, and gives priority to warfare ov ...
. Consequently, they made the decision to keep the family in Princeton, except for Albert, who had returned to England by 1942. Alan Pars, godfather to their son Michael, later recommended Albert for an
Admiralty Admiralty most often refers to: *Admiralty, Hong Kong * Admiralty (United Kingdom), military department in command of the Royal Navy from 1707 to 1964 *The rank of admiral *Admiralty law Admiralty can also refer to: Buildings * Admiralty, Tra ...
post in America knowing that Ingham and the children were still there.


Later life and death

The Inghams owned a punt, called ''Pete'', moored in the
River Cam The River Cam () is the main river flowing through Cambridge in eastern England. After leaving Cambridge, it flows north and east before joining the River Great Ouse to the south of Ely, Cambridgeshire, Ely, at Pope's Corner. The total distanc ...
, and it was used regularly during the summer for trips and picnics. They also went on many trips abroad, including India, and walking holidays in the
French Alps The French Alps are the portions of the Alps mountain range that stand within France, located in the Auvergne-Rhône-Alpes and Provence-Alpes-Côte d'Azur regions. While some of the ranges of the French Alps are entirely in France, others, such a ...
. It was on such a holiday that Albert died of a
heart attack A myocardial infarction (MI), commonly known as a heart attack, occurs when Ischemia, blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle. The most common symptom ...
on a high path near
Haute-Savoie Haute-Savoie () is a Departments of France, department in the Auvergne-Rhône-Alpes Regions of France, region of Southeastern France, bordering both Switzerland and Italy. Its Prefectures in France, prefecture is Annecy. To the north is Lake Gene ...
, southeastern France. After his death, she resisted offers for her husband's mathematical notes and papers, instead keeping the papers in a cupboard at the house. Jane Ingham died at Cambridge on 10September 1982, and was cremated at the Cambridge City Crematorium, Huntingdon Road,
Dry Drayton Dry Drayton is a village and civil parish about 5 miles (8 km) northwest of Cambridge in Cambridgeshire, England, listed as Draitone in the Domesday Book in 1086. It covers an area of . History The ancient parish of Dry Drayton formed bet ...
, on 20September 1982. Alan Pars, her friend and her husband's former colleague at Cambridge, sent a wreath.


Legacy


Discovery of protein in plant cell walls

Ingham and Priestley were the first to isolate cell walls from the
middle lamella The middle lamella is a layer that cements together the primary cell walls of two adjoining plant cells. It is the first formed layer to be deposited at the time of cytokinesis. The cell plate that is formed during cell division itself develops ...
of the
radicle In botany, the radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination. The radicle is the embryonic root of the plant, and grows downward in the soil (the shoot emerges from t ...
and
plumule A seedling is a young sporophyte developing out of a plant embryo from a seed. Seedling development starts with germination of the seed. A typical young seedling consists of three main parts: the radicle (embryonic root), the hypocotyl (embry ...
meristems of ''Vicia faba''. They analysed the cell walls for protein, cellulose, and pectin. They noted that the cellulose walls of the radicle failed to react with iodine and
sulphuric acid Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid ( Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formu ...
, or with of zinc. They showed that the cellulose in the wall of the radicle is masked by other substances, particularly proteins and
fatty acid In chemistry, in particular in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated and unsaturated compounds#Organic chemistry, saturated or unsaturated. Most naturally occurring fatty acids have an ...
s. In the plumule, cellulose is associated with greater quantities of pectin, but less protein and fatty acid, particularly when the adult
parenchyma upright=1.6, Lung parenchyma showing damage due to large subpleural bullae. Parenchyma () is the bulk of functional substance in an animal organ such as the brain or lungs, or a structure such as a tumour. In zoology, it is the tissue that ...
is grown in light. They concluded that the meristematic cells had walls containing a proteinpectin complex, that is, these walls "...commencing as interfaces in a proteincontaining medium may be regarded as composed at first mainly of protein." Florence Mary Wood, a British
postdoctoral researcher A postdoctoral fellow, postdoctoral researcher, or simply postdoc, is a person professionally conducting research after the completion of their doctoral studies (typically a PhD). Postdocs most commonly, but not always, have a temporary acade ...
in
biochemistry Biochemistry, or biological chemistry, is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology, a ...
at
Birkbeck College Birkbeck, University of London (formally Birkbeck College, University of London), is a public research university located in London, England, and a member institution of the University of London. Established in 1823 as the London Mechanics' ...
, questioned their results and concluded that less than 0.001% of protein was found in the cell walls of the plants examined. Later researchers found protein in the cells but were unable to rule out the possibility of
cytoplasm The cytoplasm describes all the material within a eukaryotic or prokaryotic cell, enclosed by the cell membrane, including the organelles and excluding the nucleus in eukaryotic cells. The material inside the nucleus of a eukaryotic cell a ...
ic contamination. It is now known that the middle lamella consists of a pectic polysaccharide-rich material. However, the material properties and molecular organisation of the middle lamella are still not fully understood.


Differences in cell division and elongation in the epidermal layer of plants

Ingham found that in the arch of the
hypocotyl The hypocotyl (short for "hypocotyledonous stem", meaning "below seed leaf") is the stem of a germinating seedling, found below the cotyledons (seed leaves) and above the radicle (root). Eudicots As the plant embryo grows at germination, it send ...
from
sunflower seed A sunflower seed is a seed from a sunflower (''Helianthus annuus''). There are three types of commonly used sunflower seeds: linoleic (most common), high oleic, and sunflower oil seeds. Each variety has its own unique levels of monounsatura ...
s, ''
Helianthus annuus The common sunflower (''Helianthus annuus'') is a species of large annual forb of the daisy family Asteraceae. The common sunflower is harvested for its edible oily seeds, which are often eaten as a snack food. They are also used in the pro ...
'', there are considerably more cells on the outside than on the inside. Counting from the beginning to the end of the arch, the result was "3,299 cells on the upper side as against 1,531 on the lower." This result means that the convex side of the arch leads the concave side, not only in terms of cell extension, but also in
cell division Cell division is the process by which a parent cell (biology), cell divides into two daughter cells. Cell division usually occurs as part of a larger cell cycle in which the cell grows and replicates its chromosome(s) before dividing. In eukar ...
behaviour, such that a different division rate would cause the growth difference. Consequently, the concave and convex sides show profound physiological differences. The observation that in the hypocotyl the cells on the convex side are considerably larger than those on the inside could be explained by the uneven transverse transport of the growth hormone
auxin Auxins (plural of auxin ) are a class of plant hormones (or plant-growth regulators) with some morphogen-like characteristics. Auxins play a cardinal role in coordination of many growth and behavioral processes in plant life cycles and are essent ...
. Auxin has a strengthening effect on the elongation growth of the cells. In the case of nutation phenomena, it is possible that curvature only occurs in a narrowly limited section of the shoot. Harald Kaldewey, professor of botany at
Saarland University Saarland University (, ) is a public research university located in Saarbrücken, the capital of the German state of Saarland. It was founded in 1948 in Homburg in co-operation with France and is organized in six faculties that cover all major ...
in
Saarbrücken Saarbrücken (; Rhenish Franconian: ''Sabrigge'' ; ; ; ; ) is the capital and largest List of cities and towns in Germany, city of the state of Saarland, Germany. Saarbrücken has 181,959 inhabitants and is Saarland's administrative, commerci ...
, Germany, measured the differences in the length of the subepidermal cells on the outer and inner periphery of the arch in the nutation curvature of the
pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...
s of snake's head fritillary, ''
Fritillaria meleagris ''Fritillaria meleagris'' is a Eurasian species of flowering plant in the lily family Liliaceae. Its common names include snake's head fritillary, snake's head (the original English name), chess flower, frog-cup, guinea-hen flower, guinea flower ...
''. The result was expected if the curvature is based exclusively on differences in elongation growth. A difference in width between the sub-epidermal cells of the outer and inner periphery of the arch of curvature was not found. Sir
Edward James Salisbury Sir Edward James Salisbury CBE FRS (16 April 1886 – 10 November 1978) was an English botanist and ecologist. He was born in Harpenden, Hertfordshire and graduated in botany from University College London in 1905. In 1913, he obtained a D.S ...
, the English botanist and ecologist, found good agreement between the ratio of the epidermal cell lengths and the arch lengths of the nutation curvature of the
epicotyl An epicotyl is important for the beginning stages of a plant's life. It is the region of a seedling stem above the stalks of the seed leaves of an embryo plant. It grows rapidly, showing hypogeal germination, and extends the stem above the soil su ...
in seedlings of different woody plants. The findings of Ingham, Salisbury, and Kaldewey, do not necessarily contradict each other as the epidermis and sub-epidermal layer may well behave differently than cortical layers in terms of division and extension growth.


Importance of cell orientation in cork

In Ingham's last study in the botany department at the University of Leeds, she ringbarked ''
Laburnum ''Laburnum'', sometimes called golden chain or golden rain, is a genus of two species of small trees in the subfamily Faboideae of the pea family Fabaceae. The species are '' Laburnum anagyroides''—common laburnum and '' Laburnum alpinum''— ...
'' and sycamore (''
Acer pseudoplatanus ''Acer pseudoplatanus'', known as the sycamore in the British Isles and as the sycamore maple in the United States, is a species of maple native to Central Europe and Western Asia. It is a large deciduous, broad-leaved tree, tolerant of wind an ...
'') trees, but left
zigzag A zigzag is a pattern made up of small corners at variable angles, though constant within the zigzag, tracing a path between two parallel lines; it can be described as both jagged and fairly regular. In geometry, this pattern is described as a ...
bridges of tissue with horizontal portions linking the bark above and below the cut. At first, the lack of pressure within these bridges resulted in the formation of
callus A callus (: calluses) is an area of thickened and sometimes hardened skin that forms as a response to repeated friction, pressure, or other irritation. Since repeated contact is required, calluses are most often found on the feet and hands, b ...
like tissue, and the cambial initials, by repeated division, came to resemble ray cells. At a later stage, some of this mass of (roughly spherical) cells became elongated horizontally in the direction of the bridge tissue.
Xylem Xylem is one of the two types of transport tissue (biology), tissue in vascular plants, the other being phloem; both of these are part of the vascular bundle. The basic function of the xylem is to transport water upward from the roots to parts o ...
and
phloem Phloem (, ) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as ''photosynthates'', in particular the sugar sucrose, to the rest of the plant. This transport process is ...
formed in the horizontal portion of the bridge with its tracheary elements extended in a horizontal direction. It has been postulated that calluses are formed because the
cambium A cambium (: cambiums or cambia), in plants, is a tissue layer that provides partially undifferentiated cells for plant growth. It is found in the area between xylem and phloem. A cambium can also be defined as a cellular plant tissue from whic ...
cells cannot function correctly under a change of orientation. For example, the altered direction of sap flow might affect the direction of cambial cell growth. Pressure, nutrient movements, and cambial auxin transport have also been suggested as causes.


Publications


As author

* * Refereed by William Lawrence Balls in May 1923. * * * *


As experimental collaborator

* * * *


See also


Footnotes


References


Further reading

* * * Archbishop Cosmo Lang's biography of Ingham's father. *


External links


Portrait
of Ingham by William Roberts, circa 1922, "An English Cubist".
Afterimages: Photographs as an External Autobiographical Memory System and a Contemporary Art Practice
University of the Arts London The University of the Arts London is a public collegiate university in London, England, United Kingdom. It specialises in arts, design, fashion, and the performing arts. The university is a federation of six arts colleges: Camberwell College of ...
Research Online. Photographs of Jane Ingham, taken by Albert Ingham, for Mark Ingham's PhD thesis at
Goldsmiths, University of London Goldsmiths, University of London, formerly Goldsmiths College, University of London, is a constituent research university of the University of London. It was originally founded in 1891 as The Goldsmiths' Technical and Recreative Institute by ...
.
Works by Ingham
at
WorldCat WorldCat is a union catalog that itemizes the collections of tens of thousands of institutions (mostly libraries), in many countries, that are current or past members of the OCLC global cooperative. It is operated by OCLC, Inc. Many of the O ...
.
Lorna Scott and her Mortar Board
by Margaret Stewart, for Egham Museum, on botanist Lorna Iris Scott, Joseph Hubert Priestley's collaborator after Ingham left for Cambridge. {{DEFAULTSORT:Ingham, Jane 1897 births 1982 deaths 20th-century English botanists 20th-century English people 20th-century English women scientists 20th-century English women Academics of the University of Leeds Alumni of the University of Leeds British women botanists English translators German–English translators Scientists from Cambridge Scientists from Leeds