منابع مشابه
L-Arabinose metabolism in Rhizobium japonicum.
l-Arabinose was metabolized through an oxidative pathway by extracts of a strain of Rhizobium japonicum. The findings showed that l-arabinose is converted into 2-keto-3-deoxy-l-arabonate, which is cleaved into glycoaldehyde and pyruvate.
متن کاملL-arabinose metabolism in Herbaspirillum seropedicae.
The pathway for L-arabinose metabolism in Herbaspirillum seropedicae was shown to involve nonphosphorylated intermediates and to produce alpha-ketoglutarate. The activities of the enzymes and the natures of several intermediates were determined. The pathway was inducible by L-arabinose, and two key enzymes, L-arabinose dehydrogenase and 2-keto-glutarate semialdehyde dehydrogenase, were present ...
متن کاملPentose metabolism in Mycobacterium smegmatis: comparison of L-arabinose isomerases induced by L-arabinose and D-galactose.
D-Galactose, which did not serve as a growth substrate, was found to induce an L-arabinose isomerase of similar properties to the L-arabinose-induced L-arabinose isomerase. In both cases the pH profiles, pH stability, optimum temperature, heat stability, substrate specificity, metal ion requirements, mobility on polyacrylamide gel electrophoresis, and kinetic properties of the induced isomerase...
متن کاملMetabolism of l-Canavanine and l-Canaline in Leguminous Plants.
Massive accumulation of l-canavanine, the 2-amino-4-(guanidinooxy)butyric acid structural analog of l-arginine, occurs in many legumes. Accumulation of large amounts of this nonprotein amino acid results in large part from canavanine's protective efficacy; it forms an effective chemical barrier to predation, disease, and even competition with other plants. Diversion of metabolic resources for t...
متن کاملD-arabinose metabolism in Escherichia coli B: induction and cotransductional mapping of the L-fucose-D-arabinose pathway enzymes.
D-Arabinose is degraded by Escherichia coli B via some of the L-fucose pathway enzymes and a D-ribulokinase which is distinct from the L-fuculokinase of the L-fucose pathway. We found that L-fucose and D-arabinose acted as the apparent inducers of the enzymes needed for their degradation. These enzymes, including D-ribulokinase, appeared to be coordinately regulated, and mutants which constitut...
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ژورنال
عنوان ژورنال: Journal of Plant Research
سال: 2016
ISSN: 0918-9440,1618-0860
DOI: 10.1007/s10265-016-0834-z