carbon fixation


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carbon fixation

The reduction of CO2 to organic compounds by living organisms—classically equated to photosynthesis, which requires sunlight and H2O as an electron donor, converting inorganic carbon (CO2) into organic compounds.

carbon

a chemical element, atomic number 6,atomic weight 12.011, symbol C. See Table 6.

asymmetric carbon atom
one bonded to four different atoms. See also isomer.
carbon fiber
made by the pyrolization of polymer fibers at very high temperatures and used in various forms as soft tissue implants, particularly in tendon and ligament repair.
carbon fixation
see dark reaction.
References in periodicals archive ?
Recently, a 3-hydroxypropianate/4-hydroxybutyrate cycle has been uncovered as another pathway for autotrophic carbon fixation (Berg et al.
A third type of carbon fixation has evolved for some plants, and the mechanism has many of the biochemical aspects of C4 metabolism.
The carbon metabolism estimates of Ochromonas suggest that in the light, not only the relative contribution of photosynthetic carbon fixation to the total carbon metabolism [ILLUSTRATION FOR FIGURE 6C OMITTED], but even the absolute amount of photosynthetic carbon fixation decreased with increasing bacterial densities [ILLUSTRATION FOR FIGURE 6A OMITTED].
Although Moso bamboo stand stored a lower amount of carbon in the vegetation floor than Chinese fir and Masson pine stands (Table 5), the annual carbon fixation amount in Moso bamboo stand was greater than that in Chinese fir and Masson pine stands.
Recently, in Aquificales, which is a strictly thermophilic bacterial lineage of chemoautotrophs discovered at hydrothermal vents worldwide, the rTCA-based mechanism of carbon fixation has been identified in all three families of the phylum (Hugler et al.
In conclusion, this is a simple, inexpensive way to involve students in learning the biochemistry of carbon fixation in plants.
2] concentration by decreasing carbon fixation when C[O.
Isotope fractionations due to bacterial carbon fixation and C-isotope signatures in ancient sedimentary rock have been studied.
This paper reviews carbon storage in the vegetation, soil, and litter in bamboo forest systems and compares carbon fixation ability in bamboo forest ecosystems with those of other tree species in subtropical China.
Conservative extrapolations of the mass specific carbon fixation rates into community productivity (based upon published community data including tubeworm density, biomass, and in situ chemical measurements; Govenar et al.