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Spiroplasma Citri
''Spiroplasma citri'' is a bacterium species and the causative agent of Citrus stubborn disease. Its genome has been partially sequenced. The restriction enzyme SciNI, with the cutting site 5' GCGC / 3' CGCG, can be found in ''S. citri''. ''Euscelis incisa'' can be used as a vector of the bacterium to experimentally infect white clover (''Trifolium repens ''Trifolium repens'', the white clover, is a herbaceous perennial plant in the bean family Fabaceae (otherwise known as Leguminosae). It is native to Europe, including the British Isles,Clapham, A.R., Tutin, T.G. and Warburg., E.F. 1968. ''Excursio ...'').Spiroplasmas are the causal agents of citrus little-leaf disease. P. G. Markham, R. Townsend, M. Bar-Joseph, M. J. Daniels, A. Plaskitt and B. M. Meddins, Annals of Applied Biology, September 1974, Volume 78, Issue 1, pages 49–57, References External linksType strain of ''Spiroplasma citri'' at Bac''Dive'' - the Bacterial Diversity Metadatabase Mollicutes Bacteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Saglio
Pierre is a masculine given name. It is a French form of the name Peter. Pierre originally meant "rock" or "stone" in French (derived from the Greek word πέτρος (''petros'') meaning "stone, rock", via Latin "petra"). It is a translation of Aramaic כיפא (''Kefa),'' the nickname Jesus gave to apostle Simon Bar-Jona, referred in English as Saint Peter. Pierre is also found as a surname. People with the given name * Abbé Pierre, Henri Marie Joseph Grouès (1912–2007), French Catholic priest who founded the Emmaus Movement * Monsieur Pierre, Pierre Jean Philippe Zurcher-Margolle (c. 1890–1963), French ballroom dancer and dance teacher * Pierre (footballer), Lucas Pierre Santos Oliveira (born 1982), Brazilian footballer * Pierre, Baron of Beauvau (c. 1380–1453) * Pierre, Duke of Penthièvre (1845–1919) * Pierre, marquis de Fayet (died 1737), French naval commander and Governor General of Saint-Domingue * Prince Pierre, Duke of Valentinois (1895–1964), father ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus Stubborn Disease
The Citrus stubborn disease is a plant disease affecting species in the genus ''Citrus''. '' Spiroplasma citri'', a Mollicute bacterium species, is the causative agent of the disease. It is present in the phloem of the affected plant. Originally discovered transmitted by several leafhoppers including ''Circulifer tenellus'' (beet leafhopper) and '' Scaphytopius nitridus'' in citrus-growing regions of California, it is now spread by the same hoppers in Arizona and '' Circulifer haematoceps'' in the Mediterranean region. The host most notably affected is sweet orange but the bacterium can also infect weeds such as periwinkle ('' Vinca rosea'') and London rocket (''Sisymbrium irio''). Yellowed plants of Chinese cabbage and pak-choi (''Brassica rapa'') can be infected by ''S. citri''. In the wild, shortpod mustard ('' Hirschfeldia incana'') infested by the beet leafhopper, ''Circulifer tenellus'', can prove to be an important reservoir of infection. ''S. citri'' can also be transmitted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euscelis Incisa
''Euscelis incisa'' is a leafhopper species in the family Cicadellidae. It is found in Europe, North Africa, and Asia. It is formerly known as ''Euscelis plebejus'', among other names. Biology ''Euscelis incisa'' can be used as a vector of the bacterium ''Spiroplasma citri'', a mollicute bacterium that is the causative agent of the Citrus stubborn disease, to experimentally infect white clover (''Trifolium repens ''Trifolium repens'', the white clover, is a herbaceous perennial plant in the bean family Fabaceae (otherwise known as Leguminosae). It is native to Europe, including the British Isles,Clapham, A.R., Tutin, T.G. and Warburg., E.F. 1968. ''Excursio ...''). References Athysanini Hemiptera of Africa Hemiptera of Asia Hemiptera of Europe Insect vectors of plant pathogens Insects described in 1858 {{Deltocephalinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trifolium Repens
''Trifolium repens'', the white clover, is a herbaceous perennial plant in the bean family Fabaceae (otherwise known as Leguminosae). It is native to Europe, including the British Isles,Clapham, A.R., Tutin, T.G. and Warburg., E.F. 1968. ''Excursion Flora of the British Isles''. Cambridge University Press. and central Asia and is one of the most widely cultivated types of clover. It has been widely introduced worldwide as a forage crop, and is now also common in most grassy areas (lawns and gardens) of North America, Australia and New Zealand. The species includes varieties often classed as small, intermediate and large, according to height, which reflects petiole length. The term 'white clover' is applied to the species in general, 'Dutch clover' is often applied to intermediate varieties (but sometimes to smaller varieties), and 'ladino clover' is applied to large varieties. Name The genus name, ''Trifolium'', derives from the Latin ', "three", and ', "leaf", so called f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollicutes
Mollicutes is a class of bacteria distinguished by the absence of a cell wall. The word "Mollicutes" is derived from the Latin ''mollis'' (meaning "soft" or "pliable"), and ''cutis'' (meaning "skin"). Individuals are very small, typically only 0.2–0.3 μm (200-300 nm) in size and have a very small genome size. They vary in form, although most have sterols that make the cell membrane somewhat more rigid. Many are able to move about through gliding, but members of the genus ''Spiroplasma'' are helical and move by twisting. The best-known genus in the Mollicutes is ''Mycoplasma''. Colonies show the typical "fried-egg" appearance. Mollicutes are parasites of various animals and plants, living on or in the host's cells. Many cause diseases in humans, attaching to cells in the respiratory or urogenital tracts, particularly species of ''Mycoplasma'' and ''Ureaplasma''. Phytoplasma and ''Spiroplasma'' are plant pathogens associated with insect vectors. Whereas formerly the trivial n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacterial Citrus Diseases
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationships wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
