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Phytochemical changes in mango fruit in response to Alternaria alternata infection

Author

Listed:
  • Jiao LI

    (Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P.R. China)

  • Liangang MAO

    (Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P.R. China)

  • Yanning ZHANG

    (Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P.R. China)

  • Lan ZHANG

    (Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P.R. China)

  • Hongyun JIANG

Abstract

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.

Suggested Citation

  • Jiao LI & Liangang MAO & Yanning ZHANG & Lan ZHANG & Hongyun JIANG, 2018. "Phytochemical changes in mango fruit in response to Alternaria alternata infection," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 36(3), pages 227-232.
    • Handle: RePEc:caa:jnlcjf:v:36:y:2018:i:3:id:328-2017-cjfs
    DOI: 10.17221/328/2017-CJFS
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