Root Metabolism and Effects of Root Exudates on the Growth of Ralstonia solanacearum and Fusarium moniliforme Were Significantly Different between the Two Genotypes of Peanuts
文献类型： 外文期刊
作者： Li, Zhong 1 ; Guo, Wenfeng 1 ; Mo, Changming 1 ; Tang, Ronghua 2 ; He, Liangqiong 2 ; Du, Lin 3 ; Li, Ming 3 ; Wu, Haining 2 ; Tang, Xiumei 2 ; Huang, Zhipeng 2 ; Wu, Xingjian 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Lab, Nanning 530004, Peoples R China
2.Guangxi Acad Agr Sci, Cash Crops Res Inst, Nanning 530004, Peoples R China
3.Guangxi Sci & Technol Museum, Nanning 530016, Peoples R China
关键词： peanut; root exudates; differentially expressed genes; differentially expressed metabolites; pathogens; interaction
期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）
ISSN：
年卷期： 2023 年 14 卷 2 期
页码：
收录情况： SCI
摘要： Wild peanut species Arachis correntina (A. correntina) had a higher continuous cropping tolerance than peanut cultivars, closely correlating with the regulatory effects of its root exudates on soil microorganisms. To reveal the resistance mechanism of A. correntina to pathogens, we adopted transcriptomic and metabolomics approaches to analyze differentially expressed genes (DEGs) and differentially expressed metabolites (DEMs) between A. correntina and peanut cultivar Guihua85 (GH85) under hydroponic conditions. Interaction experiments of peanut root exudates with Ralstonia solanacearum (R. solanacearum) and Fusarium moniliforme (F. moniliforme) were carried out in this study. The result of transcriptome and metabolomics association analysis showed that there were fewer up-regulated DEGs and DEMs in A. correntina compared with GH85, which were closely associated with the metabolism of amino acids and phenolic acids. Root exudates of GH85 had stronger effects on promoting the growth of R. solanacearum and F. moniliforme than those of A. correntina under 1 and 5 percent volume (1% and 5%) of root exudates treatments. Thirty percent volume (30%) of A. correntina and GH85 root exudates significantly inhibited the growth of two pathogens. The exogenous amino acids and phenolic acids influenced R. solanacearum and F. moniliforme showing concentration effects from growth promotion to inhibition as with the root exudates. In conclusion, the greater resilience of A. correntina) to changes in metabolic pathways for amino acids and phenolic acids might aid in the repression of pathogenic bacteria and fungi.
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