粮油食品科技2025，Vol.33Issue(5)：14-24,11.DOI:10.16210/j.cnki.1007-7561.2025.05.002
收获时间对粳稻非挥发性代谢物的影响研究
Effect of Harvest Time on Non-volatile Metabolites in Japonica Rice
摘要
Abstract
A large number of non-volatile metabolites are produced during the growth of rice,but there are few studies on the changes of metabolites at different harvest times.In this study,Nangeng 9308 used taken as the research object.Liquid chromatography-mass spectrometry(LC-MS)was used to analyze japonica rice grown in Nanjing,Huai'an,and Lianyungang by non-targeted metabolomics.This study focused on the effects of different harvest times(50,55 and 60 days after heading)on the metabolite composition of rice.The results showed that a total of 2 111 metabolites were identified.The major metabolic pathways were autophagy-other,ABC transporter,and glycerophospholipid metabolism.In addition,harvest time has a significant effect on the metabolite composition of rice,especially the content of amino acids and sugars.The content of amino acid and sugar in late-harvested rice were generally higher than those in early-harvested rice.In addition,L-glutamic acid was in an upward trend in japonica rice grown in the three regions.This study provides a reference for optimizing rice harvest time and improving rice quality by analyzing non-volatile metabolite changes.关键词
粳稻/收获时间/非挥发性代谢物/液相色谱-质谱联用/代谢组学Key words
japonica rice/harvest time/non-volatile metabolites/LC-MS/metabolomics分类
轻工纺织引用本文复制引用
张东,徐静,滕蒙南,邢晓婷,段晓亮,郭伟群,孙辉..收获时间对粳稻非挥发性代谢物的影响研究[J].粮油食品科技,2025,33(5):14-24,11.基金项目
国家重点研发计划项目"优质粳稻提质减损关键技术研究与示范"(2022YFE0117800) National Key Research and Development Program"Research and Demonstration on Key Technologies for Improving Quality and Reducing Damage of High-quality Japonica Rice"(No.2022YFE0117800) （2022YFE0117800）
