久效磷对扁藻的损伤作用 Ⅱ. 叶绿素a降解与活性氧损伤的相关性

应用生态学报 ›› 1998, Vol. 9 ›› Issue (6): 631-634.

久效磷对扁藻的损伤作用 Ⅱ. 叶绿素a降解与活性氧损伤的相关性

唐学玺¹, 颜挺进², 李永祺¹, 黄健¹

1. 青岛海洋大学生命学院, 青岛266003;
2. 山东省农业科学院作物研究所

收稿日期:1997-04-02 修回日期:1997-10-16 出版日期:1998-11-25 发布日期:1998-11-25
基金资助:
1. 国家科委PDB6(PDB 6-7-1);
2. 山东省自然科学基金(Y94D0335)资助项目

Damage effect of monocrotophos on Platymonas sp Ⅱ Relationship between chlorophyll-adegradation and active oxygen

Tang Xuexi¹, Yan Tingjin², Li Yongqi¹, Huang Jian¹

Qingdao Oceanology University, Qingdao 266003

Received:1997-04-02 Revised:1997-10-16 Online:1998-11-25 Published:1998-11-25

摘要/Abstract

摘要： 扁藻细胞在久效磷的毒性胁迫下,随着胁迫强度的增加,叶绿素a降解加剧,其含量逐渐降低。分析表明,叶绿素a含量的降低与活性氧O₂^-含量、膜脂过氧化产物丙二醛(MDA)含量及细胞的电解质外渗率呈显着负相关;而与细胞超氧化物歧化酶(SOD)活性及过氧化物酶(POD)活性的降低呈显着正相关,说明久效磷胁迫下扁藻细胞叶绿素a降解与其活性氧的损伤有明显相关性。

Abstract: Under monocrotophos toxicity stress, the degradation of chlorophyll-a in Platymonas sp.cells aggravated, and its content decreased gradually with increasing stress intensity.The content of chloropphyll a was negatively correlated with those of active oxygen (O₂^-)and malondialdehyde (MDA)and the leaking rate of electrolytes, but positively with the activities of superoxide dismutases (SOD)and peroxidase (POD).The results indicate that under monocrotophos stress, the degradation of chlorophyll-a in Platymonas sp.cells was obviously correlated with the damage of active oxygen.

唐学玺, 颜挺进, 李永祺, 黄健. 久效磷对扁藻的损伤作用 Ⅱ. 叶绿素a降解与活性氧损伤的相关性[J]. 应用生态学报, 1998, 9(6): 631-634.

Tang Xuexi, Yan Tingjin, Li Yongqi, Huang Jian . Damage effect of monocrotophos on Platymonas sp Ⅱ Relationship between chlorophyll-adegradation and active oxygen[J]. Chinese Journal of Applied Ecology, 1998, 9(6): 631-634.