食品与发酵工业2024，Vol.50Issue(24)：254-260,7.DOI:10.13995/j.cnki.11-1802/ts.038574
阿拉伯半乳聚糖处理对青脆李果实褐腐菌的抑制效果及其诱导抗病性机理
Inhibitory effect of arabinogalactan treatment on postharvest brown rot of Qingcui plum and its mechanism of inducing disease resistance
摘要
Abstract
Controlling postharvest fruit diseases by inducing fruit disease resistance is an important means to reduce postharvest fruit losses.To investigate the inhibitory effect of arabinogalactan(AG)treatment on postharvest brown rot of Qingcui plum and its relationship with fruit disease resistance,the direct inhibitory effect of AG on Monilinia fructicola,the control effect of wound inoculation and AG soa-king treatment on brown rot of plum fruits,the contents of phenolic acid,activities of enzymes,and expression level of genes related to disease resistance were determined after AG treatment.Results showed that AG did not inhibit the growth of M.fructicola,and the inci-dence,spot diameter,and natural incidence of M.fructicola were significantly lower than those of the control(P＜0.05).In addition,AG treatment significantly increased the content of phenolic acid and the activity of peroxidase,polyphenol oxidase,β-1,3-glucanase,and chitinase,and the expression levels of genes related to peroxidase,chitinase,and disease-related proteins in plum fruit.In conclusion,AG treatment regulates the activity of disease-related enzymes and the accumulation of phenolic acids by increasing the expression level of disease-related genes,thereby improving the disease resistance of Qingcui plum and inhibiting the occurrence of postharvest diseases.关键词
青脆李/阿拉伯半乳聚糖/褐腐病/诱导抗病性/采后病害Key words
Prunus salicina Lindell cv.'Qingcui'/arabinogalactan/brown rot/induce disease resistance/postharvest disease引用本文复制引用
袁田,刘莹,刘玲,韩赛影,张婷婷,郑安祺,明建,邓丽莉..阿拉伯半乳聚糖处理对青脆李果实褐腐菌的抑制效果及其诱导抗病性机理[J].食品与发酵工业,2024,50(24):254-260,7.基金项目
农产综函[2022]35号 （）
西南大学大学生创新训练项目(X202310635435) （X202310635435）
