Hot air treatment activates defense responses and induces resistance against Botrytis cinerea in strawberry fruit

被引：0

作者：

JIN Peng ^{[1
]}

ZHENG Cong ^{[1
]}

HUANG Yu-ping ^{[1
]}

WANG Xiao-li ^{[2
]}

LUO Zi-sheng ^{[3
]}

ZHENG Yong-hua ^{[1
]}

机构：

[1] College of Food Science and Technology,Nanjing Agricultural University

[2] College of Life Science and Food Engineering,Huaiyin Institute of Technology

[3] College of Biosystems Engineering and Food Science,Zhejiang University

来源：

Journal of Integrative Agriculture | 2016年 / 15卷 / 11期

基金：

中央高校基本科研业务费专项资金资助;

关键词：

strawberry; hot air; postharvest disease; induced resistance; Botrytis cinerea;

D O I：

暂无

中图分类号：

S436.68 [多年生草本果类病虫害];

学科分类号：

090401 ; 090402 ;

摘要：

The effect of hot air(HA, 45°C, 3.5 h) treatment on reducing gray mold caused by Botrytis cinerea in strawberry fruit and the possible mechanisms were investigated. The results showed that HA treatment significantly reduced lesion diameter and enhanced activities of chitinase(CHI), β-1,3-glucanase and phenylalanine ammonia-lyase(PAL) in strawberry fruit. Total phenolic contents were also increased by HA treatment. The activities of antioxidant enzymes including superoxide dismutase(SOD), catalase(CAT) and ascorbate peroxidase(APX) were higher in HA treated strawberry fruit than those in control. Expression of three defense related genes such as CAT, CCR-1 allele and PLA6 was greatly induced in HA treated strawberry fruit with or without inoculation by B. cinerea. In addition, the in vitro experiment showed that HA treatment inhibited spore germination and tube growth of B. cinerea. These results suggested that HA treatment directly activated disease resistance against B. cinerea in strawberry fruit without priming response and directly inhibiting growth of B. cinerea.

引用

页码：2658 / 2665

页数：8

共 17 条

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