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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Effects of Different Oligochitosans on Isoflavone Metabolites, Antioxidant Activity, and Isoflavone Biosynthetic Genes in Soybean (Glycine max) Seeds during Germination
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Effects of Different Oligochitosans on Isoflavone Metabolites, Antioxidant Activity, and Isoflavone Biosynthetic Genes in Soybean (Glycine max) Seeds during Germination

机译：不同寡核苷酸对大豆（甘氨酸最大）种子中异黄酮代谢物，抗氧化活性和异黄酮生物合成基因的影响

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摘要

Five oligochitosans with increasing degrees of polymerization (DPs), i.e., from chitotriose to chitoheptaose, were examined to clarify the structure-bioactivity relationship between the DPs of oligochitosans and their effects on the isoflavone metabolites, total phenolic and flavonoid contents (TPC and TFC, respectively), and antioxidant activity of soybean (Glycine max) seeds during germination. Oligochitosans of different DPs exhibited varying influences on the TPC, TFC, and antioxidant activities of soybean seeds. Chitohexaose exerted a strong effect and significantly increased the aforementioned parameters in soybean seeds 72 h after germination. Genistin, malonylgenistin, and genistein were the main isoflavones found, and the genistin and genistein contents were significantly enhanced by 67.32% and 131.38%, respectively, after chitohexaose treatment. Several critical genes involved in the isoflavone biosynthesis (i.e., PAL, CHS, CHI, IFS) of soybeans treated with and without chitohexaose were analyzed, and results suggested that chitohexaose application could dramatically stimulate the transcription of these genes.
机译：研究五种寡核苷酸，具有增加的聚合程度（DPS），即从赤藓糖糖至核庚酮，以阐明寡核苷酸DPS与其对异黄酮代谢物，总酚类和黄酮含量的影响（TPC和TFC）之间的结构 - 生物活性关系。分别萌发期间大豆（甘氨酸最大）种子的抗氧化活性。不同DPS的寡核苷酸对TPC，TFC和大豆种子的抗氧化活性表现出不同的影响。乌己酮施加强烈效果，在发芽后72小时大大提高了豆豆种子中的上述参数。结核，丙二酰原素和甘黄酮是发现的主要异黄酮，在核己糖处理后，分别显着提高了67.32％和131.38％的显着提高了67.32％和131.38％。分析了几种参与在异黄酮生物合成的临时基因（即，使用曲己糖治疗的大豆（即，PAL，CHS，Chi，IF），结果表明核己糖应用可能会显着刺激这些基因的转录。

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