iTRAQ-Based Proteomics Investigation of Critical Response Proteins in Embryo and Coleoptile During Rice Anaerobic Germination  

作　　者：Zhang Guangchen Liu Zimeng Liu Yoxihong Kuya Noriyuki HuAYuchen Shi Hongru Zhao Weilin Han Yuqing Yamamoto Toshio Chen Wenfu Sun Jian 

机构地区：[1]Rice Research Institute,Shenyang Agricultural University,Shenyang 110161,China [2]Institute of Crop Cultivation and Tillage,Heilongjiang Academy of Agricultural Sciences/Heilongjiang Provincial Key Laboratory of Crop Molecular Design and Germplasm Innovation,Haerbin 150086,China [3]Institute of Crop Science,National Agriculture and Food Research Organization,Ibaraki 305-8518,Japan [4]Center of Seed Industry Development of Liaoning Province,Shenyang 110034,China [5]Institute of Plant Science and Resources,Okayama University,Okayama 710-0046,Japan

出　　处：《Rice science》2021年第4期391-401,共11页水稻科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.31701503);the Provincial Matching Funds to the National Foundation of Applied Technology Research and Development Program in Heilongjiang Province(Grant No.GX18B002);the National Key Research and Development Program of China(Grant No.2016YFD0300501).

摘　　要：Direct-seeding of rice has become popular in recent years due to its low cost and convenience,however,hypoxic condition limits seedling establishment.In this study,weedy rice WR04-6 with high germination ability under anaerobic conditions was used as a gene donor,and we successfully improved the seedling establishment rate of rice cultivar Qishanzhan(QSZ)based on selection of a new rice line R42 from the recombinant inbred line population.R42 inherited high anaerobic germination(AG)ability,and was used for isobaric tags for relative and absolute quantitation(iTRAQ)-based comparative proteomic studies with QSZ to further explore the molecular mechanism of AG.A total of 719 differentially abundant proteins(DAPs)were shared by R42 and QSZ responded to AG,and thus defined as common response DAPs.A total of 300 DAPs that responded to AG were only identified from R42,which were defined as tolerance-specific DAPs.The common response and tolerance-specific DAPs had similar biochemical reaction processes and metabolic pathways in response to anoxic stress,however,they involved different proteins.The tolerance-specific DAPs were involved in amino acid metabolism,starch and sucrose metabolism,tricarboxylic acid cycle pathway,ethylene synthesis pathway,cell wall-associated proteins and activity of active oxygen scavenging enzyme.The in silico protein-protein interactions for the top 60 DAPs indicated that tolerance-specific DAPs had relatively independent protein interaction networks in response to an anoxic environment compared with common response DAPs.The results of physiological indicators showed thatα-amylase and superoxide dismutase activities of R42 were significantly increased under anoxic conditions compared with aerobic conditions.Multiple lines of evidence from western blot,physiological analysis and quantitatDirect seeding of rice has become popular in recent years due to its low cost and convenience,however,hypoxic conditions can limit seedling establishment.In the present study,weedy rice WR04-6 with high germ

关 键 词：iTRAQ-based proteomics direct-seeding anaerobic germination weedy rice differentially abundant protein 

分 类 号：S511[农业科学—作物学]