福建农业学报2017，Vol.32Issue(2)：167-170,4.DOI:10.19303/j.issn.1008-0384.2017.02.012
苏拉威西凤果叶片在不同低温胁迫下的生理特性变化
Physiological Responses of Garcinia celebica L.Leaves Under Low-temperature Stress
摘要
Abstract
After firstly trained at 15℃ for 72 h in an illuminated incubator, the 3-year-old Garcinia celebica seedlings were placed under 3,6, or 9℃ for 36h for the experiment to observe the physiological responses of the plants to low temperatures.The contents of chlorophyll, soluble proteins and soluble sugars, as well as the activities of SOD and POD in the leaves of the seedlings were determined.It was found that the seedlings could restore their normal growth after an exposure to 6 or 9℃.Nevertheless, there were significant physiological alternations occurred to the plants due to the treatments.The contents of total chlorophyll, chlorophyll a, and chlorophyll b in the leaves were significantly lowered as compare to control.The soluble protein or soluble sugar content increased at 6℃ and 9℃, and peaked at 6℃.On the other hand, both of thesedecreased sharply at 3℃, and became lower than control.Meanwhile, the activities of SOD and POD in the leaves increased under 6℃ and 9℃ stresses.It was concluded that G.celebica responded to the temperatureat 6℃ or 9℃ to tolerate the cold stressby accumulating soluble proteins and sugars regulating osmosisin the tissues, and at the same time, enhancing the activities of SOD and PODfor an improved adaptability to the environmental change.关键词
苏拉威西凤果/低温胁迫/渗透调节物质/抗氧化酶/叶绿素/抗寒性Key words
G.celebica/cold stress/osmoregulation substance/antioxidant enzyme/chlorophyll/cold resistance分类
农业科技引用本文复制引用
刘育梅,金亮,郑国华,邱静瑜,梁诗..苏拉威西凤果叶片在不同低温胁迫下的生理特性变化[J].福建农业学报,2017,32(2):167-170,4.基金项目
厦门市科技计划项目(3502Z20142006) （3502Z20142006）
