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cordyceps? zombie worm ?

Kingdom: Fungi
Division: Ascomycota
Class: Sordariomycetes
Order: Hypocreales
Family: Ophiocordycipitaceae
Genus: Ophiocordyceps
Species: O. sinensis
Binomial name
Ophiocordyceps sinensis

Since the 1980s, 22 species in 13 genera have been attributed to the anamorph (asexually reproducing mold-like form) of O. sinensis. Of the 22 species, Cephalosporium acreomonium is the zygomycetous species of Umbelopsis, Chrysosporium sinense has very low similarity in RAPD polymorphism, hence it is not the anamorph. Likewise, Cephalosporium dongchongxiacae, C. sp. sensu, Hirsutella sinensis and H. hepiali and Synnematium sinnense are synonymous and only H. sinensis is only validly published in articles. Cephalosporium sinensis possibly might be synonymous to H. sinensis but there is lack of valid information. Isaria farinosa is combined to Paecilomyces farinosus and is not the anamorph. Several isolates of Isaria sp., Verticella sp., Scydalium sp. and Stachybotrys sp. were identified only up to generic level, and it is dubious that they are anamorph. Mortierella hepiali is discarded as anamorph as it belongs to Zygomycota. Paecilomyces sinensis and Sporothrix insectorum are discarded based on the molecular evidence. P. lingi appeared only in one article and thus is discarded because of incomplete information. Tolypocladium sinense, P. hepiali, and Scydalium hepiali, have no valid information and thus are not considered as anamorph to Ophiocordyceps sinensis. V. sinensis is not considered anamorph as there is no valid published information. Similarly, Metarhizium anisopliae is not considered anamorph as it has widely distributed host range, and is not restricted only in high altitude.

The first mention of Ophiocordyceps sinensis in traditional Chinese medicine was in Wang Ang’s 1694 compendium of materia medica, Ben Cao Bei Yao.[24] In the 18th century it was listed in Wu Yiluo's Ben cao cong xin ("New compilation of materia medica").[25] The ethno-mycological knowledge on caterpillar fungus among the Nepalese people is documented.[26] The entire fungus-caterpillar combination is hand-collected for medicinal use.

The compound Cordycepin, a derivative of the nucleoside adenosine, is found in caterpillar fungus as well as other Cordyceps species. Cordycepin has several potential medicinal and therapeutic applications, it has also displayed cytotoxicity against some leukemic cells in vitro. At least one clinical trial of Cordycepin as a leukemia treatment is in progress.[2]

Economics and impact
In rural Tibet, yartsa gunbu has become the most important source of cash income. The fungi contributed 40% of the annual cash income to local households and 8.5% to the GDP in 2004.[citation needed] For some households in Kangding County, Sichuan, the fungi comprise 100% of their cash income.[27] Prices have increased continuously, especially since the late 1990s. In 2008, one kilogram traded for US$3,000 (lowest quality) to over US$18,000 (best quality, largest larvae). The annual production on the Tibetan Plateau was estimated in 2009 at 80–175 tons.[28] The Himalayan Ophiocordyceps production might not exceed a few tons.

In 2004 the value of a kilogram of caterpillars was estimated at about 30,000 to 60,000 Nepali rupees in Nepal, and about Rs 100,000 in India.[29] In 2011 the value of a kilogram of caterpillars was estimated at about 350,000 to 450,000 Nepali rupees in Nepal. A 2012 BBC article indicated that in north Indian villages a single fungus was worth Rs 150 (about £2 or $3), which is more than the daily wage of a manual labourer.[30] In 2012, a pound of top-quality yartsa had reached retail prices of $50,000.[31]
Its value gave it a role in the Nepalese Civil War, as the Nepalese Maoists and government forces fought for control of the lucrative export trade during the June–July harvest season.[33] Collecting yarchagumba in Nepal had only been legalised in 2001, and now demand is highest in countries such as China, Thailand, Vietnam, Korea and Japan. By 2002, the 'herb' was valued at R 105,000 ($1,435) per kilogram, allowing the government to charge a royalty of R 20,000 ($280) per kilogram.remember, you are important, you are special, you can make a difference.
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Видео cordyceps? zombie worm ? канала Todd Anderson
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28 августа 2021 г. 21:03:36
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