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Near‐infrared spectroscopy allows detection and species identification of Epichloë endophytes in Lolium perenne

AuthorsSoto Barajas, Milton Carlos ; Zabalgogeazcoa, Iñigo ; González Martín, Inmaculada; Vázquez de Aldana, Beatriz R.
KeywordsFungal identification
Endophyte classification
Perennial ryegrass
Epichloë endophytes
Issue Date2019
CitationFungal Ecology 39: 231-241 (2019)
AbstractThe distribution of different Epichloë species within eight natural populations of Lolium perenne was studied. In total, 40.2% of the asymptomatic plants were infected by Epichloë festucae var. lolii or by Epichloë typhina. Both species occurred in sympatry in seven grass populations, and some plants had dual infections by both taxa. No hybrid taxa such as Epichloë hybrida were detected. Epichloë festucae strains were classified into two morphotypes, M1 and M3, according to culture characters, both morphotypes occurred in sympatry in seven populations. Plants bearing stromata produced by Epichloë typhina were observed, but asymptomatic plants infected by this species also occurred in seven populations. The alkaloid profile of Lolium perenne plants was related to the morphotype of their infecting strains: most plants infected by M3-strains were characterized by lolitrem, and those with M1-strains contained either ergovaline or lolitrem. Plants infected by Epichloë typhina were characterized by high peramine content.
Description24 páginas, 3 tablas, 3 figuras
Publisher version (URL)http://dx.doi.org/10.1016/j.funeco.2019.02.013
Appears in Collections:(IRNASA) Artículos
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