Metabolic Pathways in Acid Production by the Yeast Hansenula anomala
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منابع مشابه
Transport of malic acid and other dicarboxylic acids in the yeast Hansenula anomala.
DL-Malic acid-grown cells of the yeast Hansenula anomala formed a saturable transport system that mediated accumulative transport of L-malic acid with the following kinetic parameters at pH 5.0: Vmax, 0.20 nmol.s-1.mg (dry weight)-1; Km, 0.076 mM L-malate. Uptake of malic acid was accompanied by proton disappearance from the external medium with rates that followed Michaelis-Menten kinetics as ...
متن کاملPyridine nucleotidenitrate reductase from Hansenula anomala a nitrate reducing yeast.
The recent elucidation of the enzyme systems involved in nitrate reduction in Neurospora crassa (Evans and Nason, 1952; Nason and Evans, 1953); Bacillus pumilis (Taniguchi et al., 1953); Escherichia coli (Taniguchi et al., 1956; Nicholas and Nason, 1955) and higher plants (Evans and Nason, 1953), has renewed interest in the general problem of nitrate reduction and nitrate assimilation in microo...
متن کاملFormation of esters of yeast. I. The production of ethyl acetate by standing surface cultures of Hansenula anomala.
It has been known for some time (Hansen, 1891) that organic esters may be produced in small amounts by some microorganisms as byproducts in their utilization of organic compounds. A detailed review of the literature to 1922 on aroma producing microorganisms is given by Omelianski (1923). The taxonomy of the yeast genus Hansenula, which contains species producing the greatest yields of ester, is...
متن کاملInverse Diauxy in the Yeast Hansenula anomala: Mutants Derepressed for Malic Acid Utilization in the Presence of Glucose.
Utilization of l-malic acid by yeast strain Hansenula anomala IGC 4380 is subject to glucose repression. Derepressed mutants were obtained with UV light by use of the nonmetabolizable glucose analog 2-deoxyglucose as a selective agent. Three mutant strains degraded l-malic acid in the presence of up to 30% (wt/vol) glucose and are of potential interest for the biological deacidification of grap...
متن کاملNitrite causes reversible inactivation of nitrate reductase in the yeast Hansenula anomala.
The addition of nitrite, the product of the reaction catalysed by nitrate reductase, to cell suspensions of the yeast Hansenula anomala caused a reversible inactivation of NADPH-dependent nitrate reductase activity. The haem- and Mo-dependent and Mo-dependent activities of nitrate reductase, determined with the non-physiological electron donors FMNH2 and reduced methyl viologen respectively, we...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1972
ISSN: 0006-8071
DOI: 10.1086/336606