食品科学2017，Vol.38Issue(19)：248-254,7.DOI:10.7506/spkx1002-6630-201719040
苹果采后灰霉病抗性生理差异分析
Cultivar Differences in Postharvest Grey Mould Disease Resistance and Physiological of Apples
摘要
Abstract
This study aimed to investigate the physiological mechanism behind the resistance of apples to postharvest gray mold.'Qinguan' and 'Fuji' apple fruits were wounded and inoculated with Botrytis cinerea Pers.The changes in compounds and enzyme activities related to the disease resistance in flesh tissue were measured during subsequent storage.The results indicated that disease incidence and lesion diameters in 'Qinguan' apples were significantly less than those in 'Fuji' apples after inoculation (P ＜ 0.05).Moreover,the activities of phenylalanine solution ammonia lyase (PAL),peroxidase (POD),polyphenol oxidase (PPO),chitinase (CHI) and β-1,3-glucanase (GLU) in the pulp of resistant varieties were higher than in susceptible varieties,facilitating the accumulation of flavonoids and lignin,reducing membrane lipid peroxidation,decreasing the production of malondialdehyde (MDA) and consequently increasing the disease resistance of fruits.However,the total phenolic content of 'Qinguan' apples was lower than that of 'Fuji' apples.These results provide a theoretical guidance for identifying the resistance of apples to postharvest gray mold and for screening resistant varieties.关键词
苹果/灰霉病/抗病性/生理Key words
apple/gray mold/resistance/physiology分类
农业科技引用本文复制引用
唐永萍,石亚莉,贺军花,马利菁,周会玲..苹果采后灰霉病抗性生理差异分析[J].食品科学,2017,38(19):248-254,7.基金项目
国家现代农业(苹果)产业技术体系建设专项(nycylx-08-05-02) （苹果）
