摘要
[目的]为筛选出龙须菜的最佳生长温度。[方法]测定了不同温度(15、20、25℃)对龙须菜生长和光合作用的影响,并根据海藻的生理活动与光合作用,研究了龙须菜影响温度变化的机理。[结果]25℃时,龙须菜具有最大的光合作用速率、呼吸作用速率、光能利用效率及光饱和点;20℃时,龙须菜具有最低的呼吸作用速率、光补偿点以及最高的R/P值。[结论]25℃是红藻龙须菜生理活动的最佳温度,20℃是龙须菜保种的最佳温度。
[ Objective ] The study aimed to choose the best growth temperature of Gracilaria lemaneiformis. [ Method ] The effects of different temperature （15, 20, 25 ） on growth and photosynthesis of Gracilaria lemaneiformis were determined, and mechanism of temperature change acted on Gracilaria lemaneiformis were studied based on physiological activities and photosynthesis. [ Result] Gracilaria lemaneiformis had the highest photosynthetic rate, respiration rate, photosynthetic efficiency and light saturation under 25 ℃ ; the lowest respiration rate, light compensation point and the highest value of P/R were found under 20 ℃. [ Conclusion]25 ℃ was the best temperature for physiological activity of the thalli, 20 ℃ was the best condition for Gracilaria lemaneiformis storing.
出处
《安徽农业科学》
CAS
北大核心
2009年第33期16322-16324,共3页
Journal of Anhui Agricultural Sciences
基金
近海海洋环境科学国家重点实验室(厦门大学)开放课题基金资助项目(MELRS0912)
关键词
龙须菜
温度
生长
光合作用
Gracilaria lemaneiformis
Temperature
Growth
Photosynthesis
