Heavy-metal toxicity in the cyanobacterium Nostoc linckia

Kumar, D. ; Jha, M. ; Kumar, H. D. (1985) Heavy-metal toxicity in the cyanobacterium Nostoc linckia Aquatic Botany, 22 (2). pp. 101-105. ISSN 0304-3770

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0304-3770(85)90039-7


The effects of HgCl2, NiCl2 and CoCl2 on Nostoc linckia (Roth) Born. et Flah. were studied. Low level (0.2 p.p.m.) of mercury increased heterocyst frequency, stimulated nitrate reductase and ammonium uptake, but significantly inhibited acetylene-reducing and glutamine-synthetase activities. In contrast, NiCl2 and CoCl2 greatly inhibited all of the above processes.

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ID Code:90499
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