Journal of Integrative Agriculture ›› 2022, Vol. 21 ›› Issue (2): 446-459.DOI: 10.1016/S2095-3119(21)63657-2

• • 上一篇    下一篇

  

  • 收稿日期:2020-11-17 接受日期:2021-02-19 出版日期:2022-01-02 发布日期:2022-01-02

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

Hafiz ABDUL HASEEB1*, ZHANG Jun1*, GUO Yu-shuang2, GAO Mei-xu1, GUO Wei1   

  1. 1 Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, P.R.China
    2 Key Laboratory of Molecular Genetics, China National Tobacco Corporation, Guizhou Institute of Tobacco Science, Guiyang  550081, P.R.China
  • Received:2020-11-17 Accepted:2021-02-19 Online:2022-01-02 Published:2022-01-02
  • About author: Hafiz Abdul HASEEB, E-mail: hafiz.haseeb@yahoo.com; ZHANG Jun, E-mail: cgjl_2016@126.com; Correspondence GUO Wei, Tel/Fax: +86-10-62815925, E-mail: guowei01@caas.cn * These authors contributed equally to this study.
  • Supported by:
    This research work was partially supported by the National Key Research and Development Program of China (2017YFC1600903 and 2016YFD040015), the National Natural Science Foundation of China (32072377), the Beijing Natural Science Foundation, China (6192023), and the Agricultural Science and Technology Innovation Program of China (CAAS-ASTIP-2020-IFST-03).  Abdul Haseeb H received the scholarship grant from the China Scholarship Council (CSC) (2017GXZ022555).  

Abstract: 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.

Key words: apoplastic proteins , maize defense response , proteome , Fusarium verticillioides