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2066400 
Journal Article 
Effect of low pH, Al and Ca on toxicity and superoxide dismutase (SOD) activity of Cortinarius russus 
Yin, DAQIANG; Jin, HONGJUN; Sun, AILONG; Kong, FANXIANG; Zhuang, SUXING; Li, YUJING 
1997 
No 
Yingyong Shengtai Xuebao / Chinese Journal of Applied Ecology
ISSN: 1001-9332 
BIOSIS/98/12959 
8 
6 
659-662 
chi 
BIOSIS COPYRIGHT: BIOL ABS. In this paper, acute bioassay method was used to study the toxic effect of low pH and aluminum on mycorrhizal fungi (Cortinarius russus). At pH 4.3, the aluminum toxicity was the strongest, with a 96 h EC50 of 5.05 mg L-1, and the growth of Cortinarius russus was obviously inhibited. The SOD activity of Cortinarius russus was induced by low pH and aluminum, and increased obviously, but decreased when calcium was added, and decreased with increasing calcium concentration. At low pH, there exists an antagonism between calcium and aluminum.