基于代谢组学分析稻曲病发生对优质水稻稻米品质的影响  

Metabolomic Analysis of the Effect of Rice False Smut(Ustilaginoidea virens)on the Quality of High-Quality Rice

作　　者：潘争艳 杨铁鑫 解文孝 董立强 姜秀英 马亮 李建国 白元俊 PAN Zhengyan;YANG Tiexin;XIE Wenxiao;DONG Liqiang;JIANG Xiuying;MA Liang;LI Jianguo;BAI Yuanjun(Liaoning Rice Research Institute,Shenyang 110101,China)

机构地区：[1]辽宁省水稻研究所,辽宁沈阳110101

出　　处：《食品科学》2025年第4期172-179,共8页Food Science

基　　金：辽宁省农业科技攻关计划项目(2022JH1/10200003);辽宁省自然科学基金面上项目(2023-MS-049)。

摘　　要：为研究稻曲病的发生对稻米品质的影响机制,以中感稻曲病的优质粳稻品种辽粳433和辽粳2501为材料,通过非靶向性代谢组学分析,定性到稻米中271种代谢产物,稻曲病的发生诱导稻米中49种代谢产物的相对含量发生显著改变,其中没食子儿茶素、3-羟基苯甲酸、绿原酸、芥子酸、精胺、α-生育酚、烟酰胺、十二烷酸和棕榈酸的相对含量显著降低,1-单油酸甘油酯、2-单油酸甘油酯、1-单硬脂酸、果糖、赤藓糖、半乳糖、麦芽糖、塔格糖、莽草酸和α-酮戊二酸的相对含量显著上调。这些物质的变化导致稻米中糖酵解、三羧酸循环、脂肪酸合成和次生代谢发生紊乱,增加稻米的垩白粒率或垩白度,降低稻米的整精米率、抗氧化能力和营养价值。To investigate the mechanism for the effect of rice false smut on rice grain quality,this study used two high-quality japonica rice varieties,Liaogeng 433 and Liaogeng 2501,moderately susceptible to rice false smut.Through non-targeted metabolomics analysis,271 metabolites were identified in rice grains,and the relative contents of 49 metabolites were affected by rice false smut.The relative contents of gallocatechin,3-hydroxybenzoic acid,chlorogenic acid,sinapinic acid,spermine,α-tocopherol,nicotinamide,dodecanoic acid,and palmitic acid were significantly reduced,while the relative contents of 1-monoolein,2-monoolein,1-monostearin,fructose,erythritol,galactose,maltose,tagatose,shikimic acid,andα-ketoglutaric acid were significantly increased.These changes led to disorders in sugar metabolism,the tricarboxylic acid cycle,fatty acid synthesis and secondary metabolism in rice,thereby increasing the chalkiness or chalky gain percentage of rice and reducing the head rice percentage,antioxidant capacity and nutritional quality.

关 键 词：稻曲病 非靶向代谢组学 代谢产物 稻米品质 营养价值 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]