Physiological response of Sonchus brachyotus to salt stress

Abstract

Abstract: Seedlings of Sonchus brachyotus were treated with NaCl at different concentrations (0, 3, 6, 9, 12 g/kg), the physiological response was observed, and the physiological indexes measured. With an increase in NaCl concentration, plasma membrane permeability and malondialdehyde (MDA) content increased. The activity of superoxide dismutase (SOD), guaiacol peroxidase (POD) and catalase (CAT), and the proline and soluble sugar contents also increased with NaCl stress intensification. Soluble protein contents increased under low NaCl concentrations but tended to slowly decline with an increase in NaCl concentration. In conclusion, S. branchyotus showed a great adaptability to salt stress.

CLC Number:

Q945.78

SHI Li-ran, NIU Yu-lu, LI Ming-zhe. Physiological response of Sonchus brachyotus to salt stress[J]. Acta Prataculturae Sinica, 2010, 19(6): 272-275.

References

[1] 贺士元. 河北植物志(第三卷)[M]. 石家庄: 河北科学技术出版社, 1991.
[2] 陈叶. 苣荬菜的利用价值及栽培[J]. 特种经济动植物, 2002, 9: 34-35.
[3] 刘一明, 程凤枝, 王齐, 等. 四种暖季型草坪植物的盐胁迫反应及其耐盐阈值[J]. 草业学报, 2009, 18(3): 192-199.
[4] 王学奎. 植物生理生化实验原理和技术(第2版)[M]. 北京: 高等教育出版社, 2006.
[5] Bajii M, Kinet J M, Luttes S. The use of electrolyte leakage method for assessing cell membrane stability as a water stress tolerance test in durum wheat[J]. Plant Growth Regulation, 2002, 36: 61-70.
[6] 龚明, 丁念诚, 贺子义, 等. 盐胁迫下大麦和小麦叶片脂质过氧化伤害与超微结构变化的关系[J]. 植物学报, 1989, 31(11): 841-846.
[7] 田敏, 饶龙兵, 李纪元. 植物细胞中的活性氧及其生理作用[J]. 植物生理学通讯, 2005, 41(2): 235-241.
[8] 张永峰, 殷波. 混合盐碱胁迫对苗期紫花苜蓿抗氧化酶活性及丙二醛含量的影响[J]. 草业学报, 2009, 18(1): 46-50.
[9] 朱虹, 祖元刚, 王文杰. 逆境胁迫条件下脯氨酸对植物生长的影响[J]. 东北林业大学学报, 2009, 37(4): 86-89.
[10] 张永锋, 梁正伟, 隋丽, 等. 盐碱胁迫对苗期紫花苜蓿生理特性的影响[J]. 草业学报, 2009, 18(4): 230-235.
[11] 汤章成. 现代植物生理学实验指南[M]. 北京: 科学技术出版社, 1999.
[12] 张显强, 张宇斌, 王家远, 等. NaCl胁迫对玉米幼苗叶片蛋白质降解和脯氨酸累积的影响[J]. 贵州农业科学, 2002, 30(2): 3-4.
[13] 杨颖丽, 杨宁, 王莱, 等. 盐胁迫对小麦幼苗生理指标的影响[J]. 兰州大学学报(自然科学版), 2007, 43(2): 29-33.
[14] 肖强, 郑海雷, 陈瑶, 等. 盐度对互花米草生长及脯氨酸、可溶性糖和蛋白质含量的影响[J]. 生态学杂志, 2005, 24(4): 373-376.
[15] 田晓艳, 刘延吉, 郭迎春. 盐胁迫对NHC牧草Na⁺、K⁺、Pro、可溶性糖及可溶性蛋白的影响[J]. 草业科学, 2008, 25(10): 34-38.