PHOSPHOENOLPYRUVATE CARBOXYKINASE ACTIVITY IN ASCOPHYLLUM NODOSUM (PHAEOPHYCEAE)1
- 1 March 1983
- journal article
- research article
- Published by Wiley in Journal of Phycology
- Vol. 19 (1) , 1-3
- https://doi.org/10.1111/j.0022-3646.1983.00001.x
Abstract
PEP‐dependent4 CO2‐fixation by extracts of Ascophyllum nodosum (L.) Le Jol. is reported. The carboxylation of PEP is Mn2+ dependent and ATP is shown to be a product. IDP was found to be less efficient as a phosphate acceptor than ADP and 3‐mercaptopicolinic acid inhibited the carboxylation reaction. Extracts decarboxylated OAA only in the presence of ATP and had high activities of MDH and GOT. This evidence, together with the probable absence of PEPC, PEPCTrP, and PC in A. nodosum extracts, favors the view that PEPCK is responsible for the light‐independent CO2‐fixation observed in this alga.Keywords
This publication has 23 references indexed in Scilit:
- Metabolic implications of non-photosynthetic carbon fixation in brown macroalgaePhycologia, 1981
- LIGHT INDEPENDENT CARBON FIXATION BY MARINE MACROALGAE1Journal of Phycology, 1979
- Photosynthetic and light-independent carbon fixation in Macrocystis, Nereocystis, and some selected Pacific LaminarialesCanadian Journal of Botany, 1979
- Oxaloacetate as the Source of Carbon Dioxide for Photosynthesis in Bundle Sheath Cells of the C4 Species Panicum maximumPlant Physiology, 1977
- Activation of Escherichia coli phosphoenolpyruvate carboxylase by guanosine‐5′‐diphosphate‐3′‐diphosphateFEBS Letters, 1977
- A Rapid and Sensitive Method for the Quantitation of Microgram Quantities of Protein Utilizing the Principle of Protein-Dye BindingAnalytical Biochemistry, 1976
- A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye bindingAnalytical Biochemistry, 1976
- Photosynthetic Carbon Metabolism in Marine AlgaeBotanica Marina, 1973
- 14CO2-Fixation in Marine Algae with Special Reference to the Dark-Fixation in Brown AlgaeBotanica Marina, 1972
- Initial Pathway of Dark 14CO2-Fixation in Brown AlgaeBotanica Marina, 1972