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SOLUBILIZATION OF INORGANIC PHOSPHATES BY BACTERIA ISOLATED FROM UPPER KLAMATH LAKE SEDIMENT 1
Author(s) -
Harrison Michael J.,
Pacha Robert E.,
Morita Richard Y.
Publication year - 1972
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1972.17.1.0050
Subject(s) - solubilization , algae , phosphate , chemistry , lysis , bacteria , sediment , environmental chemistry , chelation , biochemistry , inorganic chemistry , biology , botany , paleontology , genetics
Bacteria that can solubilize FePO 4 , Ca 3 (PO 4 ) 2 , CaHPO 4 , Al 2 (PO 4 ) 2 , and Mg 3 (PO 4 ) 2 were isolated from the sediment of Upper Klamath Lake. Solubilization was associated with carbohydrate metabolism and aerobic growth. Both carbohydrates and products of algal lysis when added to the system stimulated solubilization of phosphates. Solubilization was attributed to the formation of organic acids that function as chelating agents, releasing free phosphate ions that can be utilized by algae.