Phytochelatin synthesis in response to cadmium uptake in Vaucheria (Xanthophyceae)

被引：17
|
作者：
Skowronski, T
de Knecht, JA
Simons, J
Verkleij, JAC
机构：
[1] PAS, Inst Ecol, Expt Stn, PL-20080 Lublin, Poland
[2] Free Univ Amsterdam, Dept Ecol & Ecotoxicol, NL-1081 HV Amsterdam, Netherlands
来源：
EUROPEAN JOURNAL OF PHYCOLOGY | 1998年 / 33卷 / 01期
关键词：
cadmium; light; phytochelatins; temperature; Vaucheria;
D O I：
10.1017/S0967026298001516
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Production of phytochelatins (PCs) in response to cadmium uptake in the benthic macroalgae Vaucheria compacta and V. debaryana (Xanthophyceae) was investigated. The algae synthesized thiol-containing peptides, identified by means of high-performance liquid chromatography as PC2, PC3 and PC4. In both algal species the level of PCs increased with time of cadmium exposure and was dependent on external cadmium concentration. V. compacta synthesized significantly more PCs than V. debaryana. Exposure of the algae to cadmium at low temperature and in darkness resulted in a significant decrease in PC content over the time interval tested (3 days).
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页码：87 / 91
页数：5
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