期刊文献+

水稻、小麦和油菜种子萌发POD与CAT对酸雨胁迫的响应 被引量:39

Response of POD and CAT During Seeds of Rice,Wheat and Rape Germination on Acid Rain Stress
下载PDF
导出
摘要 研究了pH 2.5~5.0模拟酸雨对水稻(O.sativa)、小麦(T.aestivum)和油菜(B.chinensis var.oleifera)种子萌发过程中POD、CAT活性影响.静态与动态实验结果表明,酸雨胁迫下,3类种子萌发时CAT与POD活性的变化幅度是水稻(28.8%,31.7%)<小麦(34.7%,48.3%)<油菜(79.3%,50.0%);CAT与POD与CK达到差异显著水平(p<0.05)的胁迫强度是水稻(pH3.5)>小麦(pH4.0)>油菜(pH5.0),说明保护酶抗酸雨能力是水稻>小麦>油菜.相同胁迫强度下,水稻、小麦和油菜种子CAT变幅<POD,说明前者对酸雨胁迫敏感性大于后者.保护酶应激清除自由基反应能力的差异是决定3类种子萌发指标趋异的又一深层原因. The effects of simulated acid rain (pH2.5- 5.0) on the activities of POD and CAT were investigated during germination of rice (O. sativa ), wheat ( T. aestivurn ) and rape ( B. chinensis var. oleifera ) seeds. Compared with the control (CK), the amplitude of the change in the activity of CAT and POD is that rice (28.8 %, 31.7 % ) 〈 wheat (34.7 %, 48.3 %, ) 〈 rape (79.3 %, 50.0 % ), respectively. The pH significantly different ( p 〈 0.05 ) from CK follows the order: rice (3.5) 〉 wheat ( 4.0 ) 〉 rape (5.0). All of these revealed that the ability of resisting acid rain stress is that rice is stronger than wheat and rape is the worst. Under the same condition, the amplitude of the change in the activity of CAT is more sensitivity toward acid rain stress than that of POD. The difference in free radicals removed by these 3 species is one of the reasons why the germinating indexes behaved differently.
出处 《环境科学》 EI CAS CSCD 北大核心 2005年第6期123-125,共3页 Environmental Science
基金 国家发展与改革委员会稀土项目(GFZ040628) 国家自然科学基金项目(20471030)
关键词 酸雨胁迫 水稻 小麦 油菜 萌发 POD CAT acid rain stress rice wheat rape germination POD CAT
  • 相关文献

参考文献8

  • 1曾庆玲,黄晓华,周青.酸雨对水稻、小麦和油菜种子萌发的影响[J].环境科学,2005,26(1):181-184. 被引量:47
  • 2彭彩霞,彭长连,林桂珠,温达志.模拟酸雨对农作物种子萌发和幼苗生长的影响[J].热带亚热带植物学报,2003,11(4):400-404. 被引量:45
  • 3Anitha P C, Ramanujam M P. Impact of simulated acid rain on germination and seedling growth of groundnut [J]. Advances in Plant Science, 1992,5(1): 180~186.
  • 4Fan Hou Bou, Wang Yi Hong. Effects of simulated acid rain on germination, foliar damage, chlorophyll contents and seedling growth of five hardwood species growing in China [ J ]. Forest Ecology and Management, 2000, 126:321~329.
  • 5Lee Jae Seog, Lee Young Sun, Choi Myun Ja, Lee Kyoung Hee. Effects of simulated acid rain on seed germination and growth of China aster [ J ]. Journal of the Korean Society for Horticultural Science, 1996, 37(3): 455~461.
  • 6邹琪.植物生理生化实验指导[M].北京:中国农业出版社,1995.76-77.
  • 7冯宗炜 曹洪法 周修萍.酸沉降对生态环境的影响及其恢复技术[M].北京:中国环境科学出版社,1999.2-3.
  • 8周青,黄晓华,张光生,梁婵娟,曾庆玲.污染生态学领域的稀土应用研究进展[J].中国稀土学报,2004,22(2):177-182. 被引量:36

二级参考文献48

共引文献135

同被引文献481

引证文献39

二级引证文献355

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部