食品工业科技2018，Vol.39Issue(6)：281-286,6.DOI:10.13386/j.issn1002-0306.2018.06.052
厚皮甜瓜果实对链格孢侵染抵抗能力的差异
Resistance difference of muskmelon fruit on infection of Alternaria alternata
摘要
Abstract
Take Jiashi muskmelon and 86-1 muskmelon as the experimental materials,the difference of resistance ability of muskmelon to pathogens during storage was studied in this paper.Six holes were made with a hole punch at regular distance on the equatorial part of fruit.And every hole inoculated with 20 μL A.alternata,then the muskmelon was stored in cold storage at 7 ℃.The lesion diameter of pericarp and sarcocarp were measured.The activities of chitinase,β-1,3-glucanase,phenylalanine ammonia-lyase,cinnamic acid hydroxylase and 4-coumaric acid-coenzyme A ligase were studied.The results indicated that during the storage period,the lesion diameter of 86-1 muskmelon was greater than that of Jiashi muskmelon,and the sarcocarp lesion diameter was greater than the pericarp.After inoculated with the A.alternata,both the pathogenesis-related proteins and the phenylpropanoid metabolizing enzymes were higher than CK,which showed the trend of rising first and then decreasing during the storage period.According to the research,the activities of disease-related enzymes in Jiashi muskmelon were higher than that of 86-1 muskmelon,which resulted the former was more resistant to disease than the latter.Pericarp enzyme activities were higher than the sarcocarp,so the pericarp resistance was stronger than the sarcocarp.关键词
厚皮甜瓜/链格孢/病程相关蛋白/苯丙烷代谢酶Key words
muskmelon/Alternaria alternata/pathogenesis-related proteins/phenylpropane metabolizing enzymes分类
轻工纺织引用本文复制引用
李梦,冯作山,张明明,玛尔哈巴·帕尔哈提,王玉红,何洋,白羽嘉..厚皮甜瓜果实对链格孢侵染抵抗能力的差异[J].食品工业科技,2018,39(6):281-286,6.基金项目
新疆维吾尔自治区自然科学基金(青年科学基金2016D01B020). （青年科学基金2016D01B020）
