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Adaptation of the cyanobacterium Anabaena cylindrica to high oxygen tensions
Author(s) -
Mackey Elizabeth J.,
Smith Geoffrey D.
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80258-0
Subject(s) - cyanobacteria , adaptation (eye) , nitrogenase , anabaena , catalase , superoxide dismutase , phycocyanin , anabaena variabilis , oxygen , chemistry , oxygen tension , biology , botany , biochemistry , nitrogen fixation , bacteria , enzyme , genetics , organic chemistry , neuroscience
The cyanobacterium Anabaena cylindrica can adapt to protect its nitrogenase activity against greater than atmospheric (up to 100%) oxygen tension. The adaptation is light‐dependent and involves induction of superoxide dismutase and catalase. After adaptation, the cells are resistant to photooxidation as measured by phycocyanin release and microscopic examination.