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Malus Sieversii
''Malus sieversii'' is a wild apple. According to DNA analysis conducted in 2010, it is the primary ancestor of the domesticated apple, '' M. domestica''. Native to Central Asia, ''M. sieversii'' prefers warm and damp habitats. Its conservation status is vulnerable. Description It is a deciduous tree growing , very similar in appearance to the domestic apple. Its pollen grains vary in size and are seen to be ovular when dry and spherical when swelled with water. Its fruit is the largest of any species of ''Malus'' except ''domestica'', up to 7 cm in diameter, equal in size to many modern apple cultivars. Unlike domesticated varieties, its leaves go red in autumn: 62% of the trees in the wild do this compared to only 2.8% of the regular apple plant or the 2,170 English cultivated varieties. ''M. sieversii'' has the capability to reproduce vegetatively as they form root suckers, or basal shoots. The clonal individual grows from the adventitious bud on the root, wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Friedrich Von Ledebour
Carl Friedrich von Ledebour (8 July 1786 in Stralsund – 4 July 1851 in Munich;NDB/ADB Deutsche Biographie also Karl Friedrich von Ledebour) was a Baltic German botanist. Between 1811 and 1836, he was professor of science in the University of Tartu, Estonia. His most important works were ''Flora Altaica'', the first flora (plants), Flora of the Altay Mountains, published in 1833, and ''Flora Rossica'', published in four volumes between 1841 and 1853, the first complete flora of the Russian Empire. New species he described for the first time in the ''Flora Altaica'' include ''Malus sieversii'' (as ''Pyrus sieversii''), the wild ancestor of the apple, and the Siberian Larch (''Larix sibirica''). The plant genera ''Ledebouria'' (in the Asparagus family, Asparagaceae), and ''Ledebouriella'' (from the family Apiaceae) ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ili River
The Ili River (, , ; ; ; zh, 伊犁河, ; , ; , ) is a river in Northwest China and Southeastern Kazakhstan. It flows from the Ili Kazakh Autonomous Prefecture of the Xinjiang Uighur Autonomous Region to the Almaty Region in Kazakhstan. It is long (including its source river the Tekes),Или of which is in Kazakhstan. The river originates from the Tekes and Künes rivers in Eastern . The Ili drains the basin between the Tian Shan and the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In-situ Conservation In India
is a Latin phrase meaning 'in place' or 'on site', derived from ' ('in') and ' (ablative of ''situs'', ). The term typically refers to the examination or occurrence of a process within its original context, without relocation. The term is used across many disciplines to denote methods, observations, or interventions carried out in their natural or intended environment. By contrast, ' methods involve the removal or displacement of materials, specimens, or processes for study, preservation, or modification in a controlled setting, often at the cost of contextual integrity. The earliest known use of ''in situ'' in the English language dates back to the mid-17th century. In scientific literature, its usage increased from the late 19th century onward, initially in medicine and engineering. The natural sciences typically use methods to study phenomena in their original context. In geology, field analysis of soil composition and rock formations provides direct insights into Earth's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ex Situ Conservation
FILE:Entrance to the Seed Vault (cropped).jpg, Svalbard Global Seed Vault, Svalbard Global Seed Bank, an ' conservation ''Ex situ'' conservation () is the process of protecting an endangered species, variety, or breed of plant or animal outside its natural habitat. For example, by removing part of the population from a threatened habitat and placing it in a new location, an artificial environment which is similar to the natural habitat of the respective animal and within the care of humans, such as a zoological park or wildlife sanctuary. The degree to which humans control or modify the natural dynamics of the managed population varies widely, and this may include alteration of living environments, reproductive patterns, access to resources, and protection from predation and mortality. ''Ex situ'' management can occur within or outside a species' natural geographic range. Individuals maintained ''ex situ'' exist outside an Niche (ecology), ecological niche. This means that they a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agrilus
''Agrilus'' is a genus of Buprestidae, jewel beetles, notable for having the largest number of species (about 3000) of any single genus in the animal kingdom. Species of the genus have a cosmopolitan distribution on all continents except Antarctica, and feed on a wide variety of flowering plant hosts. The best known species is the emerald ash borer (''Agrilus planipennis''), a serious pest of Fraxinus, ash trees, with other notable species including ''Agrilus biguttatus'' and ''Agrilus auroguttatus,'' which ar''e'' pests of oak trees. file:Agrilus aureus dorsal1.jpg, ''Agrilus aureus'' Species * ''Agrilus abantiades'' Descarpentries & Villiers, 1963 * ''Agrilus abditus'' Horn, 1891 * ''Agrilus abdominalis'' Saunders, 1874 * ''Agrilus abductus'' Horn, 1891 * ''Agrilus abeillei'' (Théry, 1905) * ''Agrilus aberlenci'' Curletti, 1997 * ''Agrilus aberrans'' Kerremans, 1900 * ''Agrilus abhayi'' Baudon, 1965 * ''Agrilus abjectus'' Horn, 1891 * ''Agri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternaria Alternata
''Alternaria alternata'' is a fungus causing leaf spots, rots, and blights on many plant parts, and other diseases. It is an opportunistic pathogen on over 380 host species of plant. It can also cause upper respiratory tract infections and asthma in humans with compromised immunity. Hosts and symptoms ''Alternaria alternata'' has many different hosts depending on its forma specialis. ''A. a.'' f. sp. ' (AAL) infects only certain cultivars of tomato plants and is often referred to as Alternaria stem canker of tomato. ''AAL''s main symptom is cankers in the stem. It resides in seeds and seedlings, and is often spread by spores as they become airborne and land on plants. It can also spread throughout other plants. Under severe infection, lesions enlarge and become coalesced causing blighting of the leaves. This symptom progression occurred in research done in Pakistan: the symptoms on affected tomatoes started with yellowing and browning of the lower leaves, then began deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phytophthora Plurivora
''Phytophthora plurivora'' is a very aggressive soil-borne plant pathogen, with worldwide distribution and a wide variety of hosts. It belongs to the class of oomycetes and is often described as a ‘fungal-like’ organism since they form a heterotrophic mycelium as the ‘true fungi’, but in contrast, their cell wall lacks chitin and is composed only of cellulose and glucans. Its name derives from Greek ''Phytophthora'' (), “plant” and (), “destruction”; “the plant-destroyer” and from Latin ( = many, - = feeding). Origins ''Phytophthora plurivora'' was first described by Sawada (1927) as '' P. citricola'' (isolated from citrus in Taiwan) based just on morphological and physiological characters. After a more accurate work T. Jung and T.I. Burgess, based not just on morphological and physiological characters, but also on phylogenetic analyses, proposed that the isolates of ''P. citricola'' showed a high diversity and were then subdivided into four new groups, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tian Shan
The Tian Shan, also known as the Tengri Tagh or Tengir-Too, meaning the "Mountains of God/Heaven", is a large system of mountain ranges in Central Asia. The highest peak is Jengish Chokusu at high and located in Kyrgyzstan. Its lowest point is at the Turpan Depression, which is below sea level. The Tian Shan is sacred in Tengrism. Its second-highest peak is known as Khan Tengri, which can be translated as "Lord of the Spirits". At the 2013 Conference on World Heritage, the eastern portion of Tian Shan in western China's Xinjiang Region was listed as a World Heritage Site. The western portion in Kyrgyzstan, Kazakhstan, and Uzbekistan was then listed in 2016. Geography Tian Shan with the ancient Silk Road The Tian Shan range is located north and west of the Taklamakan Desert and directly north of the Tarim Basin. It straddles the border regions of Kazakhstan, Kyrgyzstan, Uzbekistan and Xinjiang in Northwest China. To the south, it connects with the Pamir Mountains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazakhstan
Kazakhstan, officially the Republic of Kazakhstan, is a landlocked country primarily in Central Asia, with a European Kazakhstan, small portion in Eastern Europe. It borders Russia to the Kazakhstan–Russia border, north and west, China to the China–Kazakhstan border, east, Kyrgyzstan to the Kazakhstan–Kyrgyzstan border, southeast, Uzbekistan to the Kazakhstan–Uzbekistan border, south, and Turkmenistan to the Kazakhstan–Turkmenistan border, southwest, with a coastline along the Caspian Sea. Its capital is Astana, while the largest city and leading cultural and commercial hub is Almaty. Kazakhstan is the world's List of countries and dependencies by area, ninth-largest country by land area and the largest landlocked country. Steppe, Hilly plateaus and plains account for nearly half its vast territory, with Upland and lowland, lowlands composing another third; its southern and eastern frontiers are composed of low mountainous regions. Kazakhstan has a population of 20 mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silk Road
The Silk Road was a network of Asian trade routes active from the second century BCE until the mid-15th century. Spanning over , it played a central role in facilitating economic, cultural, political, and religious interactions between the Eastern world, Eastern and Western worlds. The name "Silk Road" was coined in the late 19th century, but some 20th- and 21st-century historians instead prefer the term Silk Routes, on the grounds that it more accurately describes the intricate web of land and sea routes connecting Central Asia, Central, East Asia, East, South Asia, South, Southeast Asia, Southeast, and West Asia as well as East Africa and Southern Europe. The Silk Road derives its name from the highly lucrative trade of silk textiles that were History of Silk, primarily produced in China. The network began with the expansion of the Han dynasty (202 BCE220 CE) into Central Asia around 114 BCE, through the missions and explorations of the Chinese imperial env ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, and biochemistry, the distinction from ions is dropped and ''molecule'' is often used when referring to polyatomic ions. A molecule may be homonuclear, that is, it consists of atoms of one chemical element, e.g. two atoms in the oxygen molecule (O2); or it may be heteronuclear, a chemical compound composed of more than one element, e.g. water (two hydrogen atoms and one oxygen atom; H2O). In the kinetic theory of gases, the term ''molecule'' is often used for any gaseous particle regardless of its composition. This relaxes the requirement that a molecule contains two or more atoms, since the noble gases are individual atoms. Atoms and complexes connected by non-covalent interactions, such as hydrogen bonds or ionic bonds, are typically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
