學術資源整合系統-相關推薦

 
作者Huang, Yu-Ling;I-Tzu Chien;Shu-Wen Chou
出版日期202608
著作名稱Experimental validation of interspecific interactions in fungal endophyte communities
會議名稱20th International Symposium on Microbial Ecology
會議地點Auckland, New Zealand
會議日期202608
主辦單位International Society of Microbial Ecology
國際性會議Y
主題真菌
摘要Microbial interaction networks inferred from sequencing data are widely used to generate ecological hypotheses, yet these predicted
associations are rarely verified by experimental evidence. To bridge the gap between inferred and realized networks, we integrated
co-occurrence network analysis with culture-based assays in foliar fungal endophyte communities. Foliar fungal endophytes were isolated from
three gymnosperm hosts (Chamaecyparis formosensis, C. obtusa var. formosana, and Calocedrus macrolepis) in Taiwan. We compared
ecological networks, inferred from co-occurrence matrices, with physiological networks constructed from in vitro paired inhibition assays. Our
results showed that the ecological network was considerably sparser than the physiological network, suggesting that strong environmental
filtering restricts the realization of potential interactions. Despite this sparsity, a subset of the inferred ecological edges was congruent with the
physiological interactions observed in the laboratory, suggesting that network inference can successfully capture authentic biotic associations.
Notably, node-level analysis revealed that ecological centrality was not solely determined by competitive ability observed in vitro. Our findings
demonstrate that while network inference can successfully capture specific interactions, the assembly of the endophyte community is driven by a
complex interplay of biotic potential and environmental constraints.
系統號NO000007724

Sep 14 2026 15:16:44
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