福建农业学报2025，Vol.40Issue(12)：1258-1265,8.DOI:10.19303/j.issn.1008-0384.2025.12.005
外源脱落酸对普通丝瓜果实发育生理特性的影响
Physiology and Development of L.cylindrica Fruits Affected by Exogenous ABA
摘要
Abstract
[Purpose]Effects of exogenous ABA on the physiology of developing Luffa cylindrica (L.) Roem fruits was studied for commercial quality improvement.[Method]Luffa cylindrica,'LZL-2',was sprayed at the flower bud stage with 0 (CK),2,4,or 8 mg·mL−1 of ABA. In 0,3,6,9,12,and 15 d after the application,changes in activities of antioxidant enzymes,i.e.,CAT,POD,and SOD,contents of endogenous hormones,i.e.,ABA,IAA,GA3,and ZR,contents of phenolic acids,i.e.,PPO,TP,and CA,as well as contents of soluble protein,sucrose,and starch in the fruits formed on the vines were monitored. Correlations between these indicators and the physiological indicators were analyzed.[Result](1) Spraying 8 mg·mL−1 ABA on the plants significantly enhanced the activities of CAT and SOD,but inhibited somewhat that of POD,in the fruits. (2) The applications significantly altered the phenolic acid and sugar compositions. And as ABA in plant increased from the spraying,the contents of PPO and TP became negatively correlated with the fruit development,whereas those of coumaric acid,sucrose,starch,and soluble protein significantly positively correlated. (3) The 8 mg·mL−1 ABA treatment rose the ABA and ZR contents in the fruits. On the 9th day,transition points appeared where ABA began to decline and ZR to rise,while 4 mg·mL−1 ABA augmented the IAA and GA3 and significantly correlated with the fruit development.[Conclusion]Exposure of Luffa cylindrica plants to ABA significantly affected its fruit development. Appropriate ABA application,such as spraying at the rate of 8 mg·mL−1,stimulated antioxidant enzyme activity and escalate the contents of phenolic acids,sugars,and endogenous hormones in the fruits to effectively enhance the market value of the vegetable.关键词
普通丝瓜/脱落酸/果实发育/生理特性Key words
Luffa cylindrica(L.) Roem/abscisic acid/fruit development/physiological property分类
农业科技引用本文复制引用
王玉倩,刘建汀,陈敏氡,李祖亮,朱海生..外源脱落酸对普通丝瓜果实发育生理特性的影响[J].福建农业学报,2025,40(12):1258-1265,8.基金项目
省属省科技计划公益类专项(2025R1082) （2025R1082）
中央引导地方科技发展专项(2022L3089) （2022L3089）
福建省农业科学院优秀科技创新人才专项(YCZX202403) （YCZX202403）
