Phytochemical Changes in Mango Fruit in Response to Alternaria alternata Infection

文献类型： 外文期刊

第一作者： Mao, Liangang

作者： Mao, Liangang;Zhang, Yanning;Zhang, Lan;Jiang, Hongyun

作者机构：

关键词： Alternaria alternata; enzyme activity; fruit quality; mango; malondialdehyde

期刊名称：CZECH JOURNAL OF FOOD SCIENCES （ 影响因子：1.279； 五年影响因子：1.829 ）

ISSN： 1212-1800

年卷期： 2018 年 36 卷 3 期

页码：

收录情况： SCI

摘要： Changes in mango fruit quality, malondialdehyde content, and enzymatic activities in response to pathogen Alternaria alternata infection were studied. A. alternata significantly affected the appearance of mango fruit at 5 and 7 days after treatment (DAT). The quality of pathogen-infected fruit first showed a significant decrease in titratable acidity and vitamin C content and a significant increase in pH since 3 DAT. The malondialdehyde content was higher than that in the untreated controls at 3 and 7 DAT. The enzyme activities of ascorbate peroxidase and polyphenol oxidase showed significant increases since 3 DAT. Significant increases in L-phenylalanine ammonia-lyase and superoxide dismutase activities were observed at 7 DAT. These results indicate that A. alternata infection first significantly affects some biochemical constituents and enzyme activities in mango fruit since 3 DAT and that there was no significant effect on appearance until 5 DAT.

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