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
2] concentration by decreasing carbon fixation
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.