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Effects of exogenous phenol on phenol content and the enymes related to phenol metabolism in Eichhornia crassipes

Wang Min, Zheng Shizhang

Department of Environment and Resources Biology, Fudan University. Shanghai 200433

Abstract

E. crassipes) could absorb and concentrate exogenous phenolic compounds, and the content of phenol in the plant increased with its concentration in the medium. Phenol, concentrations at up to 50mg/L in the medium, increased the activities of polyphenol oxidase and peroxidase. The peroxidase of the plant did not hydroxylate phenol to catechol. Phenol glucosyltransferase was detected in E. crassipes) for the first time. The activities of the three enzymes studied were found to be different in mitochondria, microsomes and the remaining components (as supernatant, Quatitatively, phenol concentration in the medium had little effect on the activity of the phenol glucosyltransferase in the plant, but the method of its quantitative measurement needs further studies.

Key words: Eichhornia crassipes;Polyphenol oxidase;Peroxidase;Phenol glucosyltransferase;Phenol

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Citing This Article：

Wang Min, Zheng Shizhang. Effects of exogenous phenol on phenol content and the enymes related to phenol metabolism in Eichhornia crassipes. Acta Physiol Sin 1995; 47 (3): (in Chinese with English abstract).