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OBSERVATIONS ON PHOTOHETEROTROPHY IN A MARINE DIATOM 1
Author(s) -
Bunt John S.
Publication year - 1969
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1969.tb02573.x
Subject(s) - diatom , biology , bay , algae , estuary , organism , genus , oceanography , phytoplankton , botany , ecology , nutrient , paleontology , geology
SUMMARY An unidentified species of the diatom genus Cocconeis has been isolated from the sediments of Biscayne Bay, Florida. The organism is capable of utilizing a range of organic substrates, including lactate, in the light but not in the dark, as shown by growth studies. Information is included on changes in cell carbon, nitrogen, and chlorophyll a during growth in batch culture. Data obtained on the kinetics of uptake of lactate and glucose raise questions on the possible ecological significance of photoheterotrophy among marine microalgae, particularly those in estuaries .