This study compares the culturable fungal endophytic community inhabiting leaves of Epichloë-infected (E+) and Epichloë-free (E-) plants of Poa bonariensis. Plants were collected from a wild population (dioecious species) where E+ and E- plants co-exist. Fungal endophytes were isolated and then morphology and ribosomal DNA internal transcribed spacer sequences were used for the identification of isolates. In total 24 different taxa of non-Epichloë (NE) endophytes were identified. No significant differences were found in richness and diversity indexes of NE-endophytes between E+ and E- plants, or between pistillate (P) and staminate (S) plants. When we analyzed these effects based on the count of the most abundant genera, Alternaria and Stemphylium infection frequencies decreased in S plants, while in E+ plants, this tendency was observed for Alternaria. Our results suggest that Epichloë and the sex of the host plant may modulate some of the dominant foliar endophytic fungal taxa.

这项研究的培养真菌内生社区居住的叶子比较稻香感染的（E +）和Epichloë-的自由（E）植物早熟bonariensis。从E +和E-植物共存的野生种群（雌雄异株）中收集植物。分离出真菌内生菌，然后将形态学和核糖体DNA内部转录的间隔区序列用于鉴定分离株。总共鉴定出了24种不同的非上皮内生菌。在E +和E-植物之间，或在雌性（P）植物和雄蕊（S）植物之间，NE-内生植物的丰富度和多样性指数均未发现显着差异。当我们根据最丰富的属的数量分析这些影响时，在S植物中，链格孢属和茎锈菌的感染频率降低，而在E +植物中，对于链格孢属观察到这种趋势。我们的结果表明，Epichloë和寄主植物的性别可能会调节一些优势的叶内生真菌类群。