首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Response of fungal endophyte communities within Andropogon gerardii (Big bluestem) to nutrient addition and herbivore exclusion
Institution:1. Department of Ecology, Evolution & Behavior, University of Minnesota, St. Paul, MN, USA;2. Department of Plant & Microbial Biology, University of Minnesota, St. Paul, MN, USA
Abstract:Fungal endophytes may alter plant responses to the environment, but how does the environment affect the communities of fungal symbionts within plants? We examined the impact of nutrient addition and herbivore exclusion on endophyte communities of the prairie grass Andropogon gerardii in a full factorial field experiment. Fungi were cultured from stems, young leaves, and mature leaves, ITS sequences obtained, and endophyte incidence, community richness, and composition analyzed. Results indicate that in plots where nutrient addition and herbivore exclusion treatments had been applied separately, fungal endophyte incidence, community composition or evenness did not differ, but that greater species richness was observed in plots with nutrient addition and herbivore exclusion treatments applied in combination, compared to other treatments. Further, although fungal community composition was significantly different in stem and leaf tissues, OTU richness was greater in all endophyte communities in nutrient addition plus herbivore exclusion treatments, regardless of tissue type. Our results indicate the distinct fungal endophyte communities found in different plant tissues respond similarly to environmental factors.
Keywords:Fungal endophytes  Microbial symbiont community assembly  Fungal community ecology  Nutrient addition  Herbivory
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号