高黎贡山捕食线虫真菌资源调查

Xianqin FAN,Xudan MAO, Yuantong HUANG,Fa ZHANG,Jie ZHANG,Xiaoyan YANG

Ecological Science（2016）

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Abstract

采集高黎贡山不同海拔高度土壤242份,从中分离鉴定出3属23种捕食线虫真菌,包括节丛孢属(Arthrobotrys),小掘氏孢属(Drechslerella)和小隔指孢属(Dactylellina).随海拔升高,捕食线虫真菌多样性及检出率逐渐递减,在海拔1410-2123m的低山地带捕食线虫真菌最为丰富,Arthrobotrys oligospora和Arthrobotrys musiformis为优势种,总检出率分别为44.39％和15.61％,多样性指数分别为1.93和2.19.在海拔2200-3484 m,Amusiformis为优势种,总检出率是16.62％.所分离到的捕食线虫真菌中,产黏性菌网的菌种占优势(78.26％),为高黎贡山捕食线虫真菌的优势种群.

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