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Abacarus Hystrix
''Abacarus hystrix'', the cereal rust mite or grain rust mite, belongs to the family Eriophyidae. They are extremely small with adults measuring up to in length and only have four legs at the front of the body. Viewing by the human eye requires a 10 – 20X lens.Whalen, J. and Cissel, B. 2012. Cereal Rust Mite in Timothy. Available at: The adult mites are usually yellow but also have been seen to be white or orange. The cereal rust mite was first found on ''Elymus repens'' (couch grass), a very common perennial grass species. It has now been found on more than 60 grass species including oats, barley, wheat and ryegrass, found in Europe, North America, South Africa and Australia.Gibson, R. 1974. Studies on the feeding behaviour of the eriophyid mite ''Abacarus hystrix'', a vector of grass viruses. Annals of Applied Biology, 78 (3), pp. 213-217. ccessed: 28 Oct 2013 Mites migrate primarily through wind movement and are usually found on the highest basal sections of the top two l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Nalepa
Alfred Nalepa (19 December 1856, in Werschetz – 11 December 1929, in Baden bei Wien) was an Austrian zoologist specializing in the field of acarology. He studied natural sciences at the University of Vienna, and from 1886 was associated with the ''Lehrerbildungsanstalt'' in Linz. In 1892 he returned to Vienna, where he was appointed professor of natural history at the ''Elisabethgymnasium''. He described many species in the field of acarology, and was the taxonomic authority of the gall mite family, Eriophyidae. Principal works * ''Beiträge zur Systematik der Phytopten'', 1889 - Contribution to the systematics Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees (synonyms: cladograms, phylogenetic tre ... of Phytoptidae. * ''Beiträge zur Kenntniss der Phyllocoptiden'', 1894 - Contribution to the knowledge of '' Phyll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriophyidae
Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues and hence known as gall mites. About 3,600 species have been described, but this is probably less than 10% of the actual number existing in this poorly researched family. They are microscopic mites and are yellow to pinkish white to purplish in color. The mites are worm like, and have only two pairs of legs. Their primary method of population spread is by wind. They affect a wide range of plants, and several are major pest species causing substantial economic damage to crops. Some species, however, are used as biological agents to control weeds and invasive plant species. Notable species Notable species in this family include: *''Abacarus hystrix'', the cereal rust mite *'' Abacarus sacchari'', the sugarcane rust mite *'' Acalitus essigi'', the redberry mite, which affects blackberries *''Aceria chondrillae'', the chondrilla gall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elymus Repens
''Elymus repens'', commonly known as couch grass, is a very common perennial species of grass native to most of Europe, Asia, the Arctic biome, and northwest Africa. It has been brought into other mild northern climates for forage or erosion control, but is often considered a weed. Other names include common couch, twitch, quick grass, quitch grass (also just quitch), dog grass, quackgrass, scutch grass, and witchgrass.Flora of NW Europe''Elytrigia repens''/ref>Flora of China''Elytrigia repens''/ref> Description It has creeping rhizomes which enable it to grow rapidly across grassland. It has flat, hairy leaves with upright flower spikes. The stems ( 'culms') grow to 40–150 cm tall; the leaves are linear, 15–40 cm long and 3–10 mm broad at the base of the plant, with leaves higher on the stems 2–8.5 mm broad. The flower spike is 10–30 cm long, with spikelets 1–2 cm long, 5–7 mm broad and 3 mm thick with three to eight florets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agropyron Mosaic Virus
''Agropyron mosaic virus'' is a plant pathogenic virus of the family ''Potyviridae ''Potyviridae'' is a family of positive-strand RNA viruses that encompasses more than 30% of known plant viruses, many of which are of great agricultural significance. The family has 12 genera and 235 species, three of which are unassigned to a ...''. External links ICTVdB - The Universal Virus Database: Agropyron mosaic virus Viral plant pathogens and diseases Potyviridae {{Virus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryegrass Mosaic Virus
''Ryegrass mosaic virus'' (RMV) is a virus in the genus '' Rymovirus''. As the name suggests its hosts include ryegrass, but also other relatives in the family Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an .... RMV's genome was sequenced in 2015. References Potyviridae Viral plant pathogens and diseases Monocot diseases {{agriculture-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolutionary Ecology (journal)
''Evolutionary Ecology'' is a bimonthly peer-reviewed scientific journal covering the study of ecology from an evolutionary perspective. It was established in 1987 and is published by Springer Science+Business Media. The editor-in-chief is Matthew Symonds (Deakin University). According to the ''Journal Citation Reports'', the journal has a 2017 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 2.133. References External links * {{Ecology-journal-stub Evolutionary ecology Evolutionary biology journals Ecology journals Springer Science+Business Media academic journals Bimonthly journals Publications established in 1987 English-language journals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instar
An instar (, from the Latin '' īnstar'', "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (''ecdysis''), until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or assume a new form. Differences between instars can often be seen in altered body proportions, colors, patterns, changes in the number of body segments or head width. After shedding their exoskeleton (moulting), the juvenile arthropods continue in their life cycle until they either pupate or moult again. The instar period of growth is fixed; however, in some insects, like the salvinia stem-borer moth, the number of instars depends on early larval nutrition. Some arthropods can continue to moult after sexual maturity, but the stages between these subsequent moults are generally not called instars. For most insect species, an ''instar'' is the developmental stage of the larval forms of holometabolous (complete metamorphism) or nymphal forms o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheat Streak Mosaic Virus
''Wheat streak mosaic virus'' (WSMV) is a plant pathogenic virus of the family ''Potyviridae'' that infects plants in the family Poaceae, especially wheat (''Triticum spp.''); it is globally distributed and vectored by the wheat curl mite, particularly in regions where wheat is widely grown. First described in Nebraska in 1922, stunted growth and the eponymous “streaks” of yellowed, non-uniform discoloration are characteristic of WSMV infection. As it has been known to cause 100% crop mortality, WSMV is a subject of ongoing scientific research. Genome WSMV is a flexible, rod-shaped virus composed of a positive-sense single-strand RNA genome approximately 8.5 to 12 kilobases in length, and can be either mono- or bipartite. The RNA serves as both the genome and viral messenger. The genomic RNA (or its segments) is translated into polyprotein(s) which are transformed by virus-encoded proteases into functional products. The virions of WSMV encapsidate a single molecule of posi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virus Particle
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,Dimmock p. 4 more than 9,000 virus species have been described in detail of the millions of types of viruses in the environment. Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity. The study of viruses is known as virology, a subspeciality of microbiology. When infected, a host cell is often forced to rapidly produce thousands of copies of the original virus. When not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles, or ''virions'', consisting of (i) the genetic material, i.e. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Journal Of Acarology
The ''International Journal of Acarology'' is a peer-reviewed scientific journal of agricultural, aquatic, general, medical, and veterinary acarology. Topics covered include mite and tick behavior, biochemistry, biology, biological pest control, ecology, evolution, morphology, physiology, systematics, and taxonomy. The journal was established in 1975 by Vikram Prasad. It was published by India Publishing House until 2008, when it was acquired by Taylor & Francis. Notable contributors * Mercedes Delfinado Mercedes Delfinado (born 16 January 1933) is an acarologist from the Philippines, who was a recipient of a 1962 Guggenheim Fellowship. She is a speciliast in bee mites, and published widely on insects of south-east Asia. For over twenty years s ... External links * Acarology journals Publications established in 1975 Bimonthly journals Taylor & Francis academic journals English-language journals {{zoo-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elsevier
Elsevier () is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell'', the ScienceDirect collection of electronic journals, '' Trends'', the '' Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services also include digital tools for data management, instruction, research analytics and assessment. Elsevier is part of the RELX Group (known until 2015 as Reed Elsevier), a publicly traded company. According to RELX reports, in 2021 Elsevier published more than 600,000 articles annually in over 2,700 journals; as of 2018 its archives contained over 17 million documents and 40,000 e-books, with over one billion annual downloads. Researchers have criticized Elsevier for its high profit marg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural Pest Mites
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Sheep, goats, pigs and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture. The major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials (such as rubber). Food classes include cereals (grains), vegetables, fruits, cooking oils, meat, milk, egg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
