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Pichia anomala Induced With Chitosan Triggers Defense Response of Table Grapes Against Post-harvest Blue Mold Disease.
Godana, Esa Abiso; Yang, Qiya; Zhao, Lina; Zhang, Xiaoyun; Liu, Jizhan; Zhang, Hongyin.
Afiliación
  • Godana EA; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
  • Yang Q; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
  • Zhao L; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
  • Zhang X; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
  • Liu J; School of Agricultural Engineering, Jiangsu University, Zhenjiang, China.
  • Zhang H; School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
Front Microbiol ; 12: 704519, 2021.
Article en En | MEDLINE | ID: mdl-34367105
To study the mechanism by which Pichia anomala induced with chitosan (1% w/v) controls blue mold disease in table grapes caused by Penicillium expansum, this study evaluated alterations in three yeast enzymatic activities. The changes in the five primary disease defense-related enzymes and two non-enzyme activities of table grapes were assayed. The results of the study showed that chitosan (1% w/v) significantly increased the yeast ß-1,3-glucanase, catalase (CAT), and malondialdehyde (MDA) activities. Furthermore, P. anomala alone or induced with chitosan (1% w/v) significantly increased the table grapes enzymatic activities of Polyphenol oxidase (PPO), phenylalanine (PAL), peroxidase (POD), and catalase (CAT) compared to the control. The RT-qPCR results also confirmed that the genes of these major disease defense enzymes were up-regulated when the table grapes were treated with P. anomala. The highest results were recorded when the fruit was treated by yeast induced with chitosan (1% w/v). The phenolic compounds, in addition to their nutritional value, can also increase the antimicrobial properties of table grapes. The current experiment determined that the total phenol and flavonoid contents of table grapes showed the highest results for fruits treated by P. anomala induced with chitosan compared with the control. Generally, the increment of these fruit enzymatic and non-enzymatic activities shows improved table grape defense against the pathogenic fungus. The induction of the yeast with chitosan also increases its bio-control efficacy against the pathogen. This study will enable future detailed investigation in the yeast pathogen control mechanisms and the use of yeasts as bio-pesticides.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Microbiol Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Microbiol Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza