ALGAE SEQUESTER HEAVY-METALS VIA SYNTHESIS OF PHYTOCHELATIN COMPLEXES
ALGAE SEQUESTER HEAVY-METALS VIA SYNTHESIS OF PHYTOCHELATIN COMPLEXES
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DOI：
10.1007/bf00425162
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发表时间：
1988-06-01
影响因子：
2.8
通讯作者：
ZENK, MH
中科院分区：
文献类型：
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作者：
GEKELER, W;GRILL, E;ZENK, MH
从小球藻中分离出Cd-结合复合物，并已显示其由植物螯合肽（γ- Glu-Cys）n-Gly，n = 2-5。10类藻类中有6类的成员暴露于镉离子后发现了植物螯合素的合成。铅、锌、银、铜、汞等离子对植物螯合素也有诱导作用。这些实验明确地表明，藻类螯合重金属的机制与高等植物相同，即通过络合植物螯合素。
A Cd-binding complex was isolated from Chlorella fusca and has been shown to be composed of phytochelating peptides, (.gamma.-Glu-Cys)n-Gly, n = 2-5. Members of six of the ten classes of Phycophyta revealed phytochelatin synthesis after exposure to cadmium ions. Phytochelatin was also induced by ions of lead, zinc, silver, copper and mercury. These experiments unequivocally demonstrated that algae sequester heavy metals by an identical mechanism as higher plant, namely via complexation to phytochelatins.