In Chlorella pyrenoidosa which have been photosynthesizing in either 1.5% (14)CO(2) or 0.05% (14)CO(2) in air, gassing with 100% O(2) results in rapid formation of phosphoglycolate which is apparently converted to glycolate. However, only about one-third to one-half of the rate of glycolate formation can be accounted for by this route. The remaining glycolate formation may be the result of the ...

The control of malate synthase formation in a fumaric acid-producing strain of Rhizopus nigricans has been found to be similar in most respects to that of isocitrate lyase, the companion enzyme of the glyoxylate bypass. A basal level is formed in a casein hydrolysate medium, which is repressed by glucose. Utilization of glucose during growth results in relief of glucose repression. Any factor w...

The title compound, C(4)H(10)NO(+)·C(5)H(8)NOS(2) (-), is built up of a morpholinium cation and a dithio-carbamate anion. In the crystal, two structurally independent formula units are linked via N-H⋯S hydrogen bonds, forming an inversion dimer, with graph-set motif R(4) (4)(12).

In the title compound, C(6)H(16)N(2)O(2+)·SO(4) (2-)·CH(3)OH, the morpholinium ring of the dication adopts a chair conformation. The crystal structure is stabilized by an extensive three-dimensional network of inter-molecular O-H⋯O, N-H⋯O, O-H⋯S and N-H⋯S hydrogen bonds.

Considerable evidence exists that the carboxyl-carbon atom of glycolic acid is the primary source of the CO(2) produced during photorespiration by leaves of many species of plants, including tobacco. Experiments were conducted to determine whether glyoxylate or glycine, both products of glycolic acid metabolism, is the more immediate precursor of photorespiratory CO(2).Illuminated tobacco leaf ...

I. Pig liver glycolic acid oxidase (glycolate: 02 oxidoreductase, EC 1.1.3.1 ) can function with either 2,6-dichlorophenolindophenol (DCIP) (Vmax----125o moles of glycolate per mole of ravin per rain) or 02 (Vmax = 620 moles of glycolate per mole of ravin per rain)9,1° as the electron acceptor. 2. Straight-chain monocarboxylic acids are non-competitive inhibitors of this enzyme with either glyc...

In the title salt, C(18)H(19)N(2)O(+)·ClO(4) (-), the morpholinium ring adopts a chair conformation, while the two benzene rings make a dihedral angle of 62.65 (17)°. Inter-molecular N-H⋯N hydrogen bonds and weak C-H⋯O inter-actions occur in the crystal structure.

In the title compound, C(12)H(18)NO(+)·PF(6) (-), the asymmetric unit consists of two cation-anion pairs. The six F atoms of one anion are disordered over two sets of sites in a 0.592 (6):0.408 (6) ratio. The morpholinium rings adopt chair conformations.

Hansen, Robert W. (University of Illinois College of Medicine, Chicago) and James A. Hayashi. Glycolate metabolism in Escherichia coli. J. Bacteriol. 83:679-687. 1962.-This study of glycolate-adapted Escherichia coli indicates that the most probable route for utilization of the substrate includes glyceric acid, 3-phosphoglyceric acid, and the tricarboxylic acid cycle. A glyceric acid dehydrogen...

Photorespiratory carbon flux reaches up to a third of photosynthetic flux, thus contributes massively to the global carbon cycle. The pathway recycles glycolate-2-phosphate, the most abundant byproduct of RubisCO reactions. This oxygenation reaction of RubisCO and subsequent photorespiration significantly limit the biomass gains of many crop plants. Although photorespiration is a compartmentali...