应用生态学报2017，Vol.28Issue(11)：3767-3774,8.DOI:10.13287/j.1001-9332.201711.038
污水与镉复合胁迫对玉米幼苗代谢物的影响
Effects of sewage and Cd combined stress on metabolites of maize seedling
摘要
Abstract
To investigate the influences of sewage and cadmium combined stress on maize seedling metabolites,we took GC-MS metabonomics technology to analyze the metabolite species,content and metabolic pathways.A total of 50 kinds of metabolites were identified.Under single stress of Cd,the malic acid content in maize seedling decreased,the citric acid content increased significantly,and the tricarboxylic acid cycle was relatively stable.Under the combined stress,both malic acid and citric acid contents increased significantly,and the tricarboxylic acid cycle was inhibited.Both single Cd stress and combined stress of sewage and Cd,especially the latter,led to the decrease of glucose and the increase of those substances related to resistance,such as proline,putrescine,muscle and γ-aminobutyric acid,which indicated the photosynthesis was inhibited.It was concluded that sewage and cadmium combined stress influence on maize seedling metabolites mainly by inhibiting the tricarboxylic acid cycle and photosynthesis.关键词
污水/镉/复合胁迫/玉米幼苗/代谢物Key words
sewage/cadmium/combined stress/maize seedling/metabolite引用本文复制引用
李萌,陈佳月,解静芳,吕佳莉,高少龙,刘瑞卿..污水与镉复合胁迫对玉米幼苗代谢物的影响[J].应用生态学报,2017,28(11):3767-3774,8.基金项目
本文由国家自然科学基金项目(30740037)和国家公益性行业(农业)科研专项(201103024)资助 This work was supported by the National Natural Science Foundation of China (30740037) and the Special Fund for Agro-scientific Research in the Public Interest (201103024). （30740037）
