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Effects of some inorganic elements on nitrogen‐fixation in blue‐green algae and some ecological aspects of pollution
Author(s) -
Henriksson L. E.,
Dasilva E. J.
Publication year - 1978
Publication title -
zeitschrift für allgemeine mikrobiologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0044-2208
DOI - 10.1002/jobm.19780180704
Subject(s) - blue green algae , algae , nitrogen fixation , pollution , environmental science , ecology , nitrogen , environmental chemistry , biology , cyanobacteria , chemistry , organic chemistry , genetics , bacteria
Nitrogen‐fixation by two species of Nostoc , one of them a lichen phycobiont, was generally stimulated by low concentrations of arsenic, cadmium, nickel, lead, palladium, and zinc. Higher concentrations (0.025 to 0.125 ppm) of arsenic, nickel, and palladium were also stimulatory; however, higher concentrations of cadmium, lead, and zinc tended to inhibit fixation. With the exception of palladium and zinc at low concentrations these six tested elements tended to inhibit nitrogen‐fixation in Chlorogloea fritschii and Westiellopsis sp .