文献类型： 外文期刊
作者： Gu, Yingnan 1 ; Yan, Bowei 2 ; Yang, Ye 1 ; Huang, Ying 1 ; Liu, Xin 3 ; Liu, Shubin 1 ;
作者机构： 1.Heilongjiang Acad Agr Sci, Postdoctoral Workstat Heilongjiang Acad Agr & Sci, Inst Agr Remote Sensing & Informat, 368 Xuefu Rd, Harbin 150086, Peoples R China
2.Heilongjiang Acad Agr Sci, Inst Ind Crops, Harbin 150086, Peoples R China
3.Heilongjiang Acad Agr Sci, Heilongjiang Acad Black Soil Conservat & Utilizat, Harbin 150086, Peoples R China
关键词：
期刊名称：METABOLITES （ 影响因子：3.7； 五年影响因子：4.1 ）
ISSN：
年卷期： 2025 年 15 卷 2 期
页码：
收录情况： SCI
摘要： Background: As a major food crop, maize is highly susceptible to pathogenic bacteria, which greatly reduces its yield and quality. Metabolomics reveals physiological and biochemical changes in organisms and aids in analyzing metabolic changes caused by various factors. Methods: This study utilized metabolomics to examine maize's metabolic changes after NCLB infestation, aiming to uncover related pathways and potential biomarkers. The metabolite measurements were performed during the maize silking stage. Results: PCA showed an obvious dispersion between the treated and untreated groups. OPLS-DA identified 1274 differential metabolites, with 242 being downregulated (mainly phenolics and esters) and 1032 upregulated (primarily organic acids, amino acids, sugars, and derivatives). KEGG annotation revealed 50 affected metabolic pathways, and the biosynthesis of secondary metab-olites and amino acids was significantly enriched. Conclusions: We hypothesized that metabolic pathways related to sugar metabolism, proline metabolism, and jasmonic acid synthesis are associated with NCLB susceptibility. These findings provide critical insights into the metabolic responses of maize to biotic stress, offering a theoretical basis for future research on plant resistance mechanisms.
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