Species Publications

Publication details

Toxin-producing Epichloe bromicola strains symbiotic with the forage grass Elymus dahuricus in China. (2017) Mycologia 109, 847-859.
Shi C, An S, Yao Z, Young CA, Panaccione DG, Lee ST, Schardl CL, Li C
Abstract: Cool-season grasses (Poaceae subfamily Pooideae) are an important forage component for livestock in western China, and many have seed-transmitted symbionts of the genus Epichloe, fungal endophytes that are broadly distributed geographically and in many tribes of the Pooideae. Epichloe strains can produce any of several classes of alkaloids, of which ergot alkaloids and indole-diterpenes can be toxic to mammalian and invertebrate herbivores, whereas lolines and peramine are more selective against invertebrates. The authors characterized genotypes and alkaloid profiles of Epichloe bromicola isolates symbiotic with Elymus dahuricus, an important forage grass in rangelands of China. The endophyte was seed-transmitted and occasionally produced fruiting bodies (stromata), but its sexual state was not observed on this host. The genome sequence of E. bromicola isolate E7626 from El. dahuricus in Xinjiang Province revealed gene sets for peramine, ergot alkaloids, and indole-diterpenes. In multiplex polymerase chain reaction (PCR) screens of El. dahuricus-endophyte isolates from Beijing and two locations in Shanxi Province, most were also positive for these genes. Ergovaline and other ergot alkaloids, terpendoles and other indole-diterpenes, and peramine were confirmed in El. dahuricus plants with E. bromicola. The presence of ergot alkaloids and indole-diterpenes in this grass is a potential concern for managers of grazing livestock.

Epichloe bromicola E7626

[ Opisthokonta | Fungi | Dikarya | . . .
. . . | Hypocreales | Clavicipitaceae | Epichloe ]

Epichloe_bromicola_E7626 Courtesy of Jean-Yves Baugnée
Taxonomy:Eukaryota | Opisthokonta | Fungi | Dikarya | Ascomycota | saccharomyceta | Pezizomycotina | leotiomyceta | sordariomyceta | Sordariomycetes | Hypocreomycetidae | Hypocreales | Clavicipitaceae | Epichloe
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