期刊
BIOLOGIA PLANTARUM
卷 45, 期 2, 页码 261-266出版社
SPRINGER
DOI: 10.1023/A:1015157009150
关键词
amino acids; green algae; growth; metal biosorption; phosphatase
Zinc adsorption by two green algae, Scenedesmus obliquus and Scenedesmus quadricauda, was investigated. The maximum adsorption capability of zinc ion obtained from the Langmuir adsorption isotherms was higher for S. obliquus (6.67) than for S. quadricauda (5.03), and S. obliquus was more tolerant to zinc phytotoxicity than S. quadricauda. Lower concentrations of zinc increased dry mass, chlorophylls a and b, carotenoids, and total amino acid contents in both algae. On the other hand, higher concentrations of zinc were inhibitory for growth and the other metabolic activities in a concentration dependent manner.
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