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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