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一种多组学方法来揭示全生物中热胁迫与干旱胁迫之间的相互作用。

A multi-omics approach to unravel the interaction between heat and drought stress in the holobiont.

作者信息

Senizza Biancamaria, Araniti Fabrizio, Lewin Simon, Wende Sonja, Kolb Steffen, Lucini Luigi

机构信息

Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy.

Dipartimento di Scienze Agrarie e Ambientali, Produzione, Territorio, Agroenergia (Di.S.A.A.), Università degli Studi di Milano, Milano, Italy.

出版信息

Front Plant Sci. 2024 Dec 19;15:1484251. doi: 10.3389/fpls.2024.1484251. eCollection 2024.

DOI:10.3389/fpls.2024.1484251
PMID:39748821
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11693709/
Abstract

The impact of combined heat and drought stress was investigated in and compared to individual stresses to reveal additive effects and interactions. A combination of plant metabolomics and root and rhizosphere bacterial metabarcoding were used to unravel effects at the plant holobiont level. Hierarchical cluster analysis of metabolomics signatures pointed out two main clusters, one including heat and combined heat and drought, and the second cluster that included the control and drought treatments. Overall, phenylpropanoids and nitrogen-containing compounds, hormones and amino acids showed the highest discriminant potential. A decrease in alpha-diversity of Bacteria was observed upon stress, with stress-dependent differences in bacterial microbiota composition. The shift in beta-diversity highlighted the pivotal enrichment of , including , and . The results corroborate the concept of stress interaction, where the combined heat and drought stress is not the mere combination of the single stresses. Intriguingly, multi-omics interpretations evidenced a good correlation between root metabolomics and root bacterial microbiota, indicating an orchestrated modulation of the whole holobiont.

摘要

研究了高温和干旱复合胁迫的影响，并与单一胁迫进行比较，以揭示累加效应和相互作用。采用植物代谢组学以及根系和根际细菌代谢条形码相结合的方法，来揭示植物全生物水平上的效应。代谢组学特征的层次聚类分析指出了两个主要聚类，一个包括高温以及高温和干旱复合胁迫，另一个聚类包括对照和干旱处理。总体而言，苯丙烷类化合物、含氮化合物、激素和氨基酸显示出最高的判别潜力。胁迫下观察到细菌的α-多样性降低，细菌微生物群组成存在胁迫依赖性差异。β-多样性的变化突出了包括[具体物种1]、[具体物种2]和[具体物种3]在内的[具体属或类群]的关键富集。结果证实了胁迫相互作用的概念，即高温和干旱复合胁迫并非单一胁迫的简单组合。有趣的是，多组学解释证明根系代谢组学与根系细菌微生物群之间具有良好的相关性，表明整个全生物存在协调调控。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/e1747399989d/fpls-15-1484251-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/920519b4c811/fpls-15-1484251-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/f30e79d74a39/fpls-15-1484251-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/61e7769b1709/fpls-15-1484251-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/4d6a7eed7e79/fpls-15-1484251-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/b59e860479e1/fpls-15-1484251-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/42fab0d325f7/fpls-15-1484251-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/d7883e9cea74/fpls-15-1484251-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/e1747399989d/fpls-15-1484251-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/920519b4c811/fpls-15-1484251-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/f30e79d74a39/fpls-15-1484251-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/61e7769b1709/fpls-15-1484251-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/4d6a7eed7e79/fpls-15-1484251-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/b59e860479e1/fpls-15-1484251-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/42fab0d325f7/fpls-15-1484251-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/d7883e9cea74/fpls-15-1484251-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f8e/11693709/e1747399989d/fpls-15-1484251-g008.jpg

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