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Nitrogen Fixation by Marine Photosynthetic Bacteria
Author(s) -
WynnWilliams D. D.,
Rhodes Muriel E.
Publication year - 1974
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1974.tb00433.x
Subject(s) - fjord , bay , seawater , nitrogen fixation , nitrogen , acetylene , photosynthesis , environmental science , harbour , marine ecosystem , oceanography , environmental chemistry , botany , chemistry , ecosystem , biology , ecology , geology , organic chemistry , computer science , programming language
S ummary . Potential nitrogen‐fixing marine photosynthetic bacteria isolated from the coastal waters and sea‐bed sediments of Cardigan Bay and adjoining mud flats, were investigated, using the acetylene reduction technique, to ascertain the magnitude of their contribution of fixed nitrogen to the coastal ecosystem. Aberystwyth harbour and Iceland fjord mud readily yielded Athiorhodaceae, the majority of which consistently reduced acetylene when grown as pure cultures on marine media. Only one such strain was isolated from local seawater, but they were more common in Iceland fjord water. No marine Thiorhodaceae were isolated. It was essential to monitor crude and pure culture systems for ethylene production in the absence of acetylene.