Abstract：Taking concentration of 225 mmol·L-1 NaCl solution to treat different salt-tolerant cucumber varieties,the effects of salt stress on chlorophyll content and chloroplast ultra-structure were studied.The results showed that under certain concentration of NaCl,at the initiate stage of salt stress,there were not many changes in salt-tolerant varieties.The chlorophyll contents of salt-tolerant and salt-sensitive varieties decreased significantly as salt stress last for a long time,but the decrease range of salt-tolerant varieties is smaller than that of salt-sensitive varieties.At the same time,salt stress could harm the chloroplast membrane system,accelerate the aging of chloroplast,disintegrating gradually the layer,shaping the contour changes,and changing the linage direction of internal layers,and arising a minor expansion,decreasing the number of tablets layers,simplifying the internal structure until total collapse.But the changing degree of salt-tolerant varieties is less than that of salt-sensitive varieties.
张景云;吴凤芝*. 盐胁迫对黄瓜不同耐盐品种叶绿素含量和叶绿体超微结构的影响[J]. 中国蔬菜, 2009, 1(10): 13-16.
ZHANG Jing-yun;WU Feng-zhi*. Effects of Salt Stress on Chlorophyll Content and Chloroplast Ultra-structure of Different Salt-tolerant Cucumber Varieties. , 2009, 1(10): 13-16.
