现代食品科技2017，Vol.33Issue(9)：71-76,19,7.DOI:10.13982/j.mfst.1673-9078.2017.9.010
24-表油菜素内酯调控苯丙烷代谢增强杏果实抗病性的研究
24-Epibrassinolide Enhances Disease Resistance in Apricot Fruits via Regulation of Phenylpropanoid Metabolism
摘要
Abstract
The effects of 24-epibrassinolide (24-EBR) treatment on disease resistance and phenylpropanoid metabolism in apricot fruits were investigated.Mature-green Xinjiang ‘Saimaiti’ apricot fruits were processed by vacuum osmotic treatment with 0.9 mg/L 24-EBR,or distilled water as a control,at a pressure of 0.05 MPa.Twenty-four hours after treatment,the apricot fruits were inoculated with Alternaria alternata and stored at a temperature of 4 ℃ and a relative humidity of 90％～95％.The phenylalanine ammonia lyase (PAL),cinnamic acid hydroxylase (C4H),and 4-p-coumaric acyl coenzyme A ligase (4-CL) activities and lignin,total phenolic,and flavonoid content of the apricot fruits were measured periodically.The disease incidence and lesion diameters of the apricot fruits were also recorded.The results showed that 24-EBR treatment significantly increased the activities of PAL,C4H,and 4-CL and the lignin and total phenolic content,increased the flavonoid content towards the end of the storage period,and decreased the disease incidence and lesion diameter of apricot ftuits.These results indicate that 24-EBR treatment can enhance the resistance of fruits to postharvest disease by inducing phenylpropanoid metabolism.关键词
24-表油菜素内酯/杏果实/抗病性/苯丙烷代谢Key words
24-epibrassinolide/apricot fruits/disease resistance/phenylpropanoid metabolism引用本文复制引用
李丽花,张瑞杰,姚远丽,朱璇..24-表油菜素内酯调控苯丙烷代谢增强杏果实抗病性的研究[J].现代食品科技,2017,33(9):71-76,19,7.基金项目
国家自然科学基金资助项目(31460414) （31460414）
公益性行业(农业)科研专项(201303075) （农业）
南京农业大学-新疆农业大学联合基金项目(KYYJ201605) （KYYJ201605）
