期刊
MYCOLOGIA
卷 94, 期 4, 页码 579-586出版社
TAYLOR & FRANCIS INC
DOI: 10.2307/3761709
关键词
C-3; C-4; endomycorrhizal fungi richness; fungal spore biodiversity; glomalean density; Glomales; highland grass
类别
Arbuscular mycorrhizal fungi (AMF) were studied in the rhizosphere of 3 Poaceae with metabolic pathway C-3 (Briza subaristata Lam., Deyeuxia hieronymi (Hack.) Turpe and Poa stuckertii (Hack.) Parodi), 2 Poaceae with C, metabolic type (Eragrostis lugens Nees and Sorghastrum pellitum (Hack.) Parodi.), and a Rosaceae (Alchemilla pinnata Ruiz & Pav.) from a natural mountain grassland in Central Argentina (South America). Host species, their metabolic type, seasonal changes, and grazing effects over AM fungal diversity were analyzed. Seventeen mycorrhizal fungi taxa were found, widespread in all families of Glomales. Density of endomycorrhizal fungi was found to be strongly influenced with seasons and host metabolic pathway, although biodiversity (H), richness (S) and evenness (E) did not change. In most cases grazing did not affect these variables.
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