Photosynthetic carbon dioxide fixation in zooxanthellae

Photosynthetic carbon dioxide fixation in zooxanthellae 227 115 115 2 2 M. Streamer Y. R. McNeil D. Yellowlees Department of Chemistry and Biochemistry James Cook University of North Queensland 4811 Townsville Queensland Australia Abstract The carbon-fixation patterns of freshly isolated zooxanthellae from the hermatypic coral Acropora formosa were examined during a 15 min exposure to sodium mosa were examined during a 15 min exposure to sodium ( 14 C)bicarbonate. The labelling pattern during the first 60 s exposure showed that the C 3 carbon-fixation pathway is the major route for photosynthetic carbon fixation in Symbiodinium sp. 3-Phosphoglyceric acid, which constituted >50% of the label after 5 s, steadily decreased over the first 60 s. Hexose phosphates, aspartate, malate and glucose were the other main products during the first 60 s. Over longer periods, significant amounts of the organic acids succinate, aspartate and glutamate were found in the extract along with glucose; but no glycerol. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Marine Biology Springer Journals

Photosynthetic carbon dioxide fixation in zooxanthellae

Marine Biology, Volume 115 (2) – Feb 1, 1993

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Publisher
Springer Journals
Copyright
Copyright © 1993 by Springer-Verlag
Subject
Life Sciences; Biomedicine general; Oceanography; Ecology; Microbiology; Zoology
ISSN
0025-3162
eISSN
1432-1793
D.O.I.
10.1007/BF00346335
Publisher site
See Article on Publisher Site

Abstract

227 115 115 2 2 M. Streamer Y. R. McNeil D. Yellowlees Department of Chemistry and Biochemistry James Cook University of North Queensland 4811 Townsville Queensland Australia Abstract The carbon-fixation patterns of freshly isolated zooxanthellae from the hermatypic coral Acropora formosa were examined during a 15 min exposure to sodium mosa were examined during a 15 min exposure to sodium ( 14 C)bicarbonate. The labelling pattern during the first 60 s exposure showed that the C 3 carbon-fixation pathway is the major route for photosynthetic carbon fixation in Symbiodinium sp. 3-Phosphoglyceric acid, which constituted >50% of the label after 5 s, steadily decreased over the first 60 s. Hexose phosphates, aspartate, malate and glucose were the other main products during the first 60 s. Over longer periods, significant amounts of the organic acids succinate, aspartate and glutamate were found in the extract along with glucose; but no glycerol.

Journal

Marine BiologySpringer Journals

Published: Feb 1, 1993

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