Carbon dioxide fixation in green sulphur bacteria

Carbon Dioxide Fixation in Marine Invertebrates*

Carbon dioxide fixation has not been studied extensively in the invertebrate animal groups. In an early study Van Niel et al. (1) with Cl1 showed fixation of COZ into succinic acid in the protozoan Tetrahymena geleii. Hultin and Wessel (2) studied incorporation of C% into proteins of developing sea urchin eggs (Psammechinus miliaris) with attention on metabolic patterns of development rather th...

Carbon dioxide fixation in the brain.

Upon intracarotid administration of ammonia to cats, there is a significant increase of cerebral glutamine without a corresponding decrease in the level of cerebral glutamic acid (3). Similar observations in dogs have been reported by others (4). Since the supply of glutamic acid from the circulating blood is insufficient for the formation of the additional amount of glutamine, the dicarboxylic...

Carbon dioxide fixation and related properties in sections of the developing green maize leaf.

Light and dark (14)CO(2) assimilation, pulse-chase ((14)CO(2) followed by (12)CO(2)) labeling experiments both in the light and in the dark, photorespiratory activity and some enzymes (ribulose 1,5-bisphosphate (RuBP) carboxylase, phosphoenolpyruvate (PEP) carboxylase, and NADP-malic enzyme) were followed in sections of 2.5 centimeters from the base (younger tissue) to the tip (oldest tissue) o...

Carbon dioxide fixation as a central redox cofactor recycling mechanism in bacteria.

The Calvin-Benson-Bassham cycle (Calvin cycle) catalyzes virtually all primary productivity on Earth and is the major sink for atmospheric CO(2). A less appreciated function of CO(2) fixation is as an electron-accepting process. It is known that anoxygenic phototrophic bacteria require the Calvin cycle to accept electrons when growing with light as their sole energy source and organic substrate...

Carbon dioxide fixation by Rhodopseudomonas capsulatus.