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Comparative microbiome analysis of core drought responsive microbiome

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摘要: Plants evolved sophisticated genetic and metabolic mechanisms to shape their “core microbiome” under normal growth conditions. However, whether natural plant ecotypes re-shape a core “stress responsive microbiome” remains elusive. Considering that drought is the most serious abiotic stress worldwide, we conducted comparative microbiome analysis to study the potential conserved core root microbiome changes upon drought stress in natural Arabidopsis ecotypes. We screened the drought tolerance of 130 worldwide Arabidopsis ecotypes, and chose the extremely drought tolerant and sensitive ecotypes for comparative microbiome studies. We detected diverse differentially abundant ASVs , network driver taxa, as well as key functions pathways shared in diverse ecotypes upon drought stress, indicating the existence of some core drought-responsive microbiome changes. Our work unveiled the existence of a core drought-responsive microbiome and its critical role in enhancing plant fitness. This work also provided a research paradigm for guiding the discovery of stress-alleviating microbiomes in sustainable agriculture using natural ecotypes.

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[V1] 2024-07-10 11:48:24 ChinaXiv:202407.00113V1 下载全文
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