Biochemical responses of Camellia sinensis (L.) O. Kuntze to heavy metal stress.

被引：0

作者：

Basak, M ^{[1
]}

Sharma, M ^{[1
]}

Chakraborty, U ^{[1
]}

机构：

[1] Univ N Bengal, Dept Bot, Plant Biochem Lab, Siliguri 734430, India

来源：

JOURNAL OF ENVIRONMENTAL BIOLOGY | 2001年 / 22卷 / 01期

关键词：

tea; heavy metals; phenol; enzymes; proline;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Three heavy metals-mercury (II), copper (II) and nickel (II), each at a concentration of 10 and 100 mug/ml, were tested for their effects on various biochemical constituents of tea leaves. Both NI (II) and HS (II) decreased the phenolic contents, while Cu (II) increased it to some extent. The metal treatments enhanced the activity of phenyl alanine ammonia lyase (PAL), while the activity of poly phenol oxidase (PPO) showed a decline. Heavy metal stress also decreased the chlorophyll content of the leaves, along with a significant reduction in Hill activity. Proline content increased significantly in all treatments.

引用

页码：37 / 41

页数：5

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