中文摘要：玉米产量可能受到产生霉菌毒素的多种真菌病原体的影响。本研究的目的是确定籽粒发育过程中酚酸和总抗氧化活性（TAA）的演变，并评估它们对最小化由一系列籽粒性状表征的六种基因型玉米（四个开放授粉及两个杂交品种）中霉菌毒素污染的潜在的保护作用。研究发现游离酚酸明显参与了对脱氧雪腐镰刀菌烯醇污染的抗性机制，而它们在野外条件下对伏马毒素污染的作用尚未阐明，这表明酚酸以外的其他成分可能是后一类抗性的原因。
外文摘要：Corn grain production could be affected by several fungal pathogens responsible for the production of mycotoxins. The aims of this study were to determine the evolution of phenolic acids and total antioxidant activity (TAA) during kernel development and to evaluate their potential protective role in minimizing mycotoxin contamination in six corn genotypes (four open-pollinated varieties and two hybrids) characterized by a wide array of kernel traits. TAA and free and cell wall-bound phenolics showed significant differences among corn genotypes at different stages of development, with the highest values found at the beginning of kernel development. Ferulic, p-coumaric, and caffeic acids were the main cell wall-bound phenolic acids during kernel development, whereas chlorogenic acid was the main free phenolic acid. A significant negative correlation was observed between deoxynivalenol contamination at harvest maturity and free phenolic acids and TAA at the beginning of kernel development, whereas no significant correlation was observed with fumonisin contamination. In conclusion, free phenolic acids are evidently involved in the resistance mechanism toward deoxynivalenol contamination, whereas their role toward fumonisin contamination was not elucidated under field conditions, implying that components other than phenolic acids may be responsible for this latter type of resistance.
作者：Giordano,D；Beta,T；Reyneri,A；Blandino,M
作者单位： Univ Turin
期刊名称：CEREAL CHEMISTRY
期刊影响因子：1.036
出版年份：2017
出版刊次：2
点击下载：玉米(Zea mays L.)籽粒发育过程中酚酸含量及抗氧化活性的变化以及与霉菌毒素污染的关系