广西林业科学2025，Vol.54Issue(2)：189-196,8.DOI:10.19692/j.issn.1006-1126.20250209
低温胁迫对广西盾翅藤生理特性的影响
Effect of Low-temperature Stress on Physiological Characteristics of Aspidopterys concava
摘要
Abstract
To provide references for promotion of Aspidopterys concava seedlings in colder regions,one-year-old A.concava seedlings were used as experimental materials.Taking room temperature as control,three tem-perature levels(3,0 and-3℃)and three treatment time(24,48 and 72 h)were set up in tow-factor experimen-tal design to explore physiological changes of A.concava seedlings under low-temperature stress.Results showed that under the same temperature,with extension of time,superoxide dismutase(SOD)activity as well as contents of soluble sugar and soluble protein of A.concava seedlings overall showed trends of decrease first and then increase;activities of peroxidase(POD)and catalase(CAT)as well as contents of chlorophyll b and total chlorophyll overall showed trends of increase first and then decrease;contents of chlorophyll a and free proline content increased.Under the same time,with decrease of temperature,CAT activity as well as contents of solu-ble sugar and soluble protein overall showed trends of decrease first and then increase;free proline content,ac-tivities of SOD and POD overall showed trends of increase first and then decrease;contents of chlorophyll a,chlorophyll b and total chlorophyll overall showed trends of increase first and then decrease and then increase.Membership function analysis results indicated that comprehensive performance of A.concava seedlings was the best under 3℃48 h treatment,followed by 3℃72 h treatment and the worst under 0℃24 h treatment.It was fea-sible to attempt promotion and cultivation of A.concava in 3℃regions.关键词
低温胁迫/生理特性/广西盾翅藤Key words
low temperature stress/physiological characteristic/Aspidopterys concava分类
农业科技引用本文复制引用
梁耀芳,潘淑民,吴志培,马恭赟,王凌晖,黄松殿..低温胁迫对广西盾翅藤生理特性的影响[J].广西林业科学,2025,54(2):189-196,8.基金项目
广西林业科技项目(桂林科研[2021]16号) （桂林科研[2021]16号）
广西林业科技推广示范项目(桂林科研[2021]10号) （桂林科研[2021]10号）
