Vladimir Andreevich Tranzschel () (January21, 1942) was a Russian and later Soviet

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 ...

mycologist Mycology is the branch of biology concerned with the study of fungi, including their taxonomy, genetics, biochemical properties, and use by humans. Fungi can be a source of tinder, food, traditional medicine, as well as entheogens, poison, and ...

and

plant pathologist Plant pathology or phytopathology is the scientific study of plant diseases caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Plant pathology involves the study of pathogen identification, disease ...

, especially an expert on

rust fungi Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus ''Puccinia'', are ...

. He graduated from

Saint Petersburg University Saint Petersburg State University (SPBGU; ) is a public research university in Saint Petersburg, Russia, and one of the oldest and most prestigious universities in Russia. Founded in 1724 by a decree of Peter the Great, the university from the be ...

in 1889 and became an assistant at the Imperial Forestry Institute in Saint Petersburg. From 1895 until 1899 he was co-editor of the

exsiccata Exsiccata (Latin, ''gen.'' -ae, ''plur.'' -ae) is a work with "published, uniform, numbered set of preserved specimens distributed with printed labels". Typically, exsiccatae are numbered collections of dried herbarium Biological specimen, spe ...

''Fungi Rossiae exsiccati''. 1898–1900, he was stationed at the

University of Warsaw The University of Warsaw (, ) is a public university, public research university in Warsaw, Poland. Established on November 19, 1816, it is the largest institution of higher learning in the country, offering 37 different fields of study as well ...

, but soon returned to

Saint Petersburg Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland ...

and took a position a curator at the Botanic Garden of the

Imperial Academy of Sciences The Russian Academy of Sciences (RAS; ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such ...

. He remained affiliated with the

Academy An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the go ...

for the remainder of his career, from 1912 as senior botanist. He travelled and made collections in

European Russia European Russia is the western and most populated part of the Russia, Russian Federation. It is geographically situated in Europe, as opposed to the country's sparsely populated and vastly larger eastern part, Siberia, which is situated in Asia ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

Crimea Crimea ( ) is a peninsula in Eastern Europe, on the northern coast of the Black Sea, almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukrain ...

Kyrgyzstan Kyrgyzstan, officially the Kyrgyz Republic, is a landlocked country in Central Asia lying in the Tian Shan and Pamir Mountains, Pamir mountain ranges. Bishkek is the Capital city, capital and List of cities in Kyrgyzstan, largest city. Kyrgyz ...

Pamir Mountains The Pamir Mountains are a Mountain range, range of mountains between Central Asia and South Asia. They are located at a junction with other notable mountains, namely the Tian Shan, Karakoram, Kunlun Mountains, Kunlun, Hindu Kush and the Himalaya ...

Ussuri The Ussuri ( ; ) or Wusuli ( ) is a river that runs through Khabarovsk and Primorsky Krais, Russia and the southeast region of Northeast China in the province of Heilongjiang. It rises in the Sikhote-Alin mountain range, flowing north and formi ...

and Primorsky. He is particularly known for Tranzschel's Law, that states that telia of microcyclic species of

that are descendants of

macrocyclic Macrocycles are often described as molecules and ions containing a ring of twelve or more atoms. Classical examples include the crown ethers, calixarenes, porphyrins, and cyclodextrins. Macrocycles describe a large, mature area of chemistry. ...

heteroecious A heteroecious parasite is one that requires at least two hosts. The ''primary host'' is the host in which the parasite spends its adult life; the other is the ''secondary host''. Both hosts are required for the parasite to complete its life cy ...

rusts simulate

aecia An aecium (plural aecia) is a specialised reproductive structure found in some plant pathogenic rust fungi that produce aeciospores. Aecia may also be referred to as "cluster cups". The term aecidium (plural aecidia) is used interchangeably but i ...

of the ancestral

rust and occur on the

aecial An aecium (plural aecia) is a specialised reproductive structure found in some plant pathogenic rust fungi that produce aeciospores. Aecia may also be referred to as "cluster cups". The term aecidium (plural aecidia) is used interchangeably but ...

host of the latter. Tranzschel devised his law to assists in identification of the aecial host of a suspected

rust by looking for hosts attacked by a microcyclic rust with morphologically similar telia to the former. Modern evolutionary thinking about

and

molecular A molecule is a group of two or more atoms that are held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions that satisfy this criterion. In quantum physics, organic chemistry, ...

investigations have confirmed its validity . In addition, Tranzschel described a number of new species of

and wrote

funga Funga is all the fungi of a particular region, habitat, or geological period. In life sciences, "funga" is a recent term (2000s) for the kingdom fungi similar to the longstanding ''fauna'' for animals and ''flora'' for plants. The term seeks to ...

s for various parts of

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

. Together with A. Henckel, Tranzschel also translated Kerner von Marilaun’s ''Pflanzenleben'' from

German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...

Russian Russian(s) may refer to: *Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *A citizen of Russia *Russian language, the most widely spoken of the Slavic languages *''The Russians'', a b ...

. The

rust fungus Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus ''Puccinia'', are ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

'' Tranzschelia''

Arthur Arthur is a masculine given name of uncertain etymology. Its popularity derives from it being the name of the legendary hero King Arthur. A common spelling variant used in many Slavic, Romance, and Germanic languages is Artur. In Spanish and Ital ...

was named to his honour.

Selected species described by Tranzschel

*'' Dasyscyphella cassandrae'' Tranzschel *'' Helminthascus arachnophthorus'' Tranzschel *'' Pucciniastrum arcticum'' Tranzschel *'' Ustilago turcomanica'' Tranzschel

Selected scientific works

*Tranzschel, V. A. (1902) Contributiones ad floram mycologicam Rossiæ, I. Enumeratio fungorum in Tauria a. 1901 lectorum. Trudy Botanicheskago Muzeya Imperatorskoy Akademii Nauk / Travaux du Musée Botanique de l'Academie Imperiale des Sciences de St-Petersbourg, vol. 1: 47–75 *Tranzschel, V. A. (1905) Contributiones ad floram mycologicam Rossiæ, II. Enumeratio fungorum in Tauria lectorum. Trudy Botanicheskago Muzeya Imperatorskoy Akademii Nauk / Travaux du Musée Botanique de l'Academie Imperiale des Sciences de St-Petersbourg, vol. 2: 31–47 * Tranzschel, V. A. (1925) Systematics and biology of the genus ''Triphragmium'' auct. ( Triphragmium Link, Triphragmiopsis Naumov, Nyssopsora Arthur). Journal of Botanical Society of Russia, 8: 123–132. *Tranzschel, V. A. (1927) Rust Fungi and their bearing on the Systematics of Vascular Plants.

Festschrift In academia, a ''Festschrift'' (; plural, ''Festschriften'' ) is a book honoring a respected person, especially an academic, and presented during their lifetime. It generally takes the form of an edited volume, containing contributions from the h ...

for I. P. Borodin. *Tranzschel, V. A. (1933) Uredinalium species novae ex Siberia. Trudy Botanicheskogo Instituta Akademii Nauk SSSR / Acta Instituti Botanici Academiae Scientiarum Unionis Rerum Publicarum Soveticarum Socialisticarum, ser. 11: Sporovye rastenenija, Fasc. 1: 267–273. *Tranzschel, V. A. (1936) The Uredinales as indicators of the affinity of their hosts in relationship to their evolution. Sovietskaya Botanica 1936 nr. 6: 133–144. *Tranzschel, V. A. (1938) Zur Biologie der Uredineen des Fernen Ostens. Trudy Botanicheskogo Instituta Akademii Nauk SSSR / Acta Instituti Botanici Academiae Scientiarum Unionis Rerum Publicarum Soveticarum Socialisticarum, ser. 11: Sporovye rastenenija *Tranzschel, V. A. (1939) Conspectus Uredinalium URSS. Moskva-Leningrad, Akademii Nauk SSSR. 426 pp. *Kuprevich, V. T. & Tranzschel, V. A. (1957) Flora Plantarum Cryptogamarum URSS: Fungi 1, Uredinales, Fasc. 1 Familia

Melampsoraceae Melampsoraceae are a family of rust fungi in the order Pucciniales. The family is monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does ...

. Moskva, Academiae Scientiarum URSS. 419 pp.

References

{{DEFAULTSORT:Tranzschel, Vladimir Andreevich 1868 births 1942 deaths 19th-century botanists from the Russian Empire Mycologists from the Russian Empire Phytopathologists Foresters from the Russian Empire Soviet botanists Soviet mycologists