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Fatty acid metabolites of Dendrobium nobile were positively correlated with representative endophytic fungi at altitude
oleh: Yongxia Zhao, Yongxia Zhao, Yongxia Zhao, Lin Qin, Lin Qin, Lin Qin, Daopeng Tan, Daopeng Tan, Daopeng Tan, Di Wu, Di Wu, Di Wu, Xingdong Wu, Xingdong Wu, Xingdong Wu, Qingjie Fan, Qingjie Fan, Qingjie Fan, Chaojun Bai, Jiyong Yang, Jian Xie, Jian Xie, Jian Xie, Yuqi He, Yuqi He, Yuqi He
Format: | Article |
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Diterbitkan: | Frontiers Media S.A. 2023-04-01 |
Deskripsi
IntroductionAltitude, as a comprehensive ecological factor, regulates the growth and development of plants and microbial distribution. Dendrobium nobile (D. nobile) planted in habitats at different elevations in Chishui city, also shows metabolic differences and endophytes diversity. What is the triangular relationship between altitude, endophytes, and metabolites?MethodsIn this study, the diversity and species of endophytic fungi were tested by ITS sequencing and metabolic differences in plants were tested by UPLC–ESI–MS/MS. Elevation regulated the colonization of plant endophytic fungal species and fatty acid metabolites in D. nobile.ResultsThe results indicate that and high altitude was better for the accumulation of fatty acid metabolites. Therefore, the high-altitude characteristic endophytic floras were screened, and the correlation with fatty acid metabolites of plants was built. The colonization of T. rubrigenum, P. Incertae sedis unclassified, Phoma. cf. nebulosa JZG 2008 and Basidiomycota unclassified showed a significantly positive correlation with fatty acid metabolites, especially 18-carbon-chain fatty acids, such as (6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid, 3,7,11,15-tetramethyl-12-oxohexadeca-2,4-dienoic acid and Octadec-9-en-12-ynoic acid. What is more fascinating is these fatty acids are the essential substrates of plant hormones.DiscussionConsequently, it was speculated that the D. nobile- colonizing endophytic fungi stimulated or upregulated the synthesis of fatty acid metabolites and even some plant hormones, thus affecting the metabolism and development of D. nobile.