核农学报2025，Vol.39Issue(7)：1367-1375,9.DOI:10.11869/j.issn.1000-8551.2025.07.1367
几丁质对采后甜樱桃灰霉病抗性及贮藏品质的影响
Effect of Chitin Treatment on Postharvest Resistance to Gray Mold and Storage Quality of Sweet Cherry Fruit
摘要
Abstract
In order to study the effect of chitin treatment on the resistance to gray mold(Botrytis cinerea)and the storage quality of sweet cherry.The effects of different concentrations of chitin on colony diameter,spore germination of B.cinerea and its effect on controlling gray mold in sweet cherry were studied;meanwhile,the changes of defense-related enzyme activities of sweet cherry under the chitin treatments were investigated.The results showed that,compared with the control,chitin concentration above 0.1％could significantly inhibit mycelial growth and spore germination of B.cinerea;chitin concentration above 0.5％could significantly inhibit the decay of sweet cherry gray mold.The optimum induced-resistance time of chitin was 24 h,and chitin could significantly inhibit the gray mold under cold storage,and reduce the natural decay of sweet cherry,while no adverse effect occurred on its storage quality.In addition,compared with the control,chitin significantly enhanced the defense-related enzymes of sweet cherry fruits,such as superoxide dismutase(SOD),catalase(CAT),peroxidase(POD),polyphenol oxidase(PPO),chitinase(CHI)and β-1,3-glucanase(GLU).In conclusion,chitin could inhibit the mycelial growth and spore germination of B.cinerea,induce the activities of defense-related enzymes,which reducing the occurrence of gray mold of sweet cherry.This study can provide theoretical support for the application of chitin in controlling postharvest disease in sweet cherries.关键词
几丁质/甜樱桃/Botrytis cinerea/诱导抗性/防御酶Key words
chitin/sweet cherry/Botrytis cinerea/induced resistance/defense-related enzymes引用本文复制引用
徐海娇,赵文诗,李立涛,范丽颖,贺丽敏,韩继成,崔建潮,贾晓辉..几丁质对采后甜樱桃灰霉病抗性及贮藏品质的影响[J].核农学报,2025,39(7):1367-1375,9.基金项目
农业农村部园艺作物种质资源利用重点实验室基金(NYZS202403),河北省农林科学院科技创新人才队伍建设项目(C24R0601),国家现代农业产业技术体系资助项目(CARS-30-ZY-27) （NYZS202403）
