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Proteomic analysis of pathogen-responsive proteins from maize stem apoplast triggered by Fusarium verticillioides

文献类型： 外文期刊

作者： Abdul Haseeb, Hafiz 1 ; Zhang Jun 1 ; Guo Yu-shuang 2 ; Gao Mei-xu 1 ; Guo Wei 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Minist Agr & Rural Affairs, Key Lab Agroprod Qual & Safety Control Storage &, Beijing 100193, Peoples R China

2.Guizhou Inst Tobacco Sci, Key Lab Mol Genet, China Natl Tobacco Corp, Guiyang 550081, Peoples R China

关键词： apoplastic proteins; maize defense response; proteome; Fusarium verticillioides

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：4.384； 五年影响因子：4.021 ）

ISSN： 2095-3119

年卷期： 2022 年 21 卷 2 期

页码：

收录情况： SCI

摘要： During the attack of a pathogen, a variety of defense-associated proteins are released by the host plant in the apoplast to impede the perceived attack. This study utilized the mass spectrometry (LC-MS/MS) and label-free quantification method to analyze the apoplastic fluid (APF) from maize stalk and identified the proteins responsive to the Fusarium verticillioides infection. We have identified 742 proteins, and among these, 119 proteins were differentially accumulated (DAPs), i.e., 35 up-regulated, 18 down-regulated, and 66 proteins were only induced by the pathogen infection. The differentially accumulated proteins were analyzed for their Gene Ontology (GO) and Kyoto Encyclopedia of Gene and Genomes (KEGG) pathway enrichment. The highly enriched Biological Process (BP) term was the L-serine biosynthesis process, whereas the most enriched Molecular Function (MF) term was the cysteine-type endopeptidase inhibitor activity. It was also found that the pathways related to the biosynthesis of amino acid, biosynthesis of secondary metabolites, protein processing in the endoplasmic reticulum, and carbohydrate metabolic pathways were significantly enriched. Moreover, 61 out of 119 differentially accumulated proteins were predicted as secretory proteins. The secretory pathways analysis showed that a greater number of proteins were secreted through the conventional secretion system compared to the unconventional secretion system. The identified secreted proteins were related to a variety of pathways in defense responses including cell redox homeostasis, cell wall modification, signal transduction, carbohydrate metabolism, binding proteins (metal ion binding, RNA binding and heme-binding), maintenance and stabilization of other proteins, indicating a complex response from the plant to the fungal infection. Our data suggested that a number of host proteins belonging to various pathways have been modulated in the apoplastic region.

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