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Chinese Journal of Applied Ecology ›› 1998, Vol. 9 ›› Issue (6): 631-634.

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

Tang Xuexi1, Yan Tingjin2, Li Yongqi1, Huang Jian1   

  1. Qingdao Oceanology University, Qingdao 266003
  • Received:1997-04-02 Revised:1997-10-16 Online:1998-11-25 Published:1998-11-25

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.