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Temperature drives the assembly of endophytic communities' seasonal succession
Author(s) -
Campisano Andrea,
Albanese Davide,
Yousaf Sohail,
Pancher Michael,
Donati Claudio,
Pertot Ilaria
Publication year - 2017
Publication title -
environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.954
H-Index - 188
eISSN - 1462-2920
pISSN - 1462-2912
DOI - 10.1111/1462-2920.13843
Subject(s) - biology , plant use of endophytic fungi in defense , ecological succession , botany , endophyte , mesorhizobium , pyrosequencing , ecology , symbiosis , rhizobia , bacteria , genetics , biochemistry , gene
Summary Endophytic microorganisms asymptomatically colonise plant tissues. Exploring the assembly dynamics of bacterial endophytic communities is essential to understand the functioning of the plant holobiont and to optimise their possible use as biopesticides or plant biostimulants. The variation in endophytic communities in above and below‐ground organs in Vitis vinifera in the field were studied. To understand the specific effect of temperature on endophytic communities, a separate experiment was set up where grapevine cuttings were grown under controlled conditions at three different temperatures. The findings revealed the succession of endophytic communities over the year. Endophytic communities of roots and stems differ in terms of composition and dynamic response to temperature. Noticeably, compositional differences during the seasons affected bacterial taxa more in stems than in roots, suggesting that roots offer a more stable and less easily perturbed environment. Correlation abundance networks showed that the presence of several taxa (including Bradyrhizobium , Burkholderia , Dyella, Mesorhizobium , Propionibacterium and Ralstonia ) is linked in both the field and the greenhouse.