Pentose metabolism by cell-free extracts of oospora lactis.

@article{Moret1962PentoseMB,
  title={Pentose metabolism by cell-free extracts of oospora lactis.},
  author={Vittorio Moret and Simonetta Sperti},
  journal={Archives of biochemistry and biophysics},
  year={1962},
  volume={98},
  pages={
          124-7
        }
}
  • V. Moret, S. Sperti
  • Published 1 July 1962
  • Biology, Medicine
  • Archives of biochemistry and biophysics
Abstract The initial stop of d -xylose metabolism by cell-free extracts of Oospora lactis (Geotrichum candidum L.) involves the reduction of xylose to xylitol by TPNH, followed by the DPN-linked oxidation of xylitol to xylulose. Xylulose is phosphorylated by added ATP, thus entering the respiratory pentose phosphate cycle. Also, d -ribose is reduced by the cell-free extracts in the presence of TPNH. The enzymically formed product, d -ribitol, has been isolated and identified. Little, if any… Expand
d-Xylulokinase and d-Ribulokinase in Higher Plants.
TLDR
Evidence that higher plants contain D-xylulokinase is presented, obtained substantially free of xylose isomerase, which would complete the sequence of reactions necessary for the introduction of D-Xylose or D-ribose into the pentose phosphate pathway in higher plants. Expand
D-Xylose metabolism by mutant strains of Candida sp.
TLDR
Study of the enzyme activities of a xylose-utilizing yeast and its ethanol-producing mutant XF217 have been conducted, finding the specific activities of xylitol dehydrogenase and xylulokinase in XF 217 increased significantly over those of the parent strain, C2, while d-Xylose reductase activity remained the same. Expand
Utilization of xylose by bacteria, yeasts, and fungi.
  • T. Jeffries
  • Chemistry, Medicine
  • Advances in biochemical engineering/biotechnology
  • 1983
TLDR
In some yeasts and fungi, conversion of d-xylose to ethanol takes place under aerobic or anaerobic conditions with rates and yields generally higher in the former than in the latter, and regulation of nonoxidative pentose metabolism is not well understood. Expand
Polyol Metabolism in the Basidiomycete Schizophyllum commune
TLDR
The polyol metabolism of intact cells and extracts of the wood-rotting mushroom Schizophyllum commune was investigated during the developmental cycle, and ketohexose formation was shown during mannitol oxidation, and the NAD-dependent oxidation of xylitol yielded ketopentose. Expand
Zur Polyolbildung aus Glucose in der flavinogenen Hefe Candida guilliermondii (Cast.) Lang, et G.
Summary Ribitol as well as D-arabitol are excreted by the flavinogenic yeast Candida guilliermondii. Ribitol is probably a source of the ribityl side chain of riboflavin. Experiments have been doneExpand
Catabolism of unnatural carbohydrates by micro-organisms.
  • R. Mortlock
  • Biology, Medicine
  • Advances in microbial physiology
  • 1976
TLDR
In tests with fermentation media, this strain was able to metabolize all of the eight aldopentose structures and the four pentitol structures, which seemed remarkable because only three of the a Aldopentoses and only two of the pentitols were considered to be available as growth substrates in nature. Expand
Xylose fermentation to ethanol by new Galactomyces geotrichum and Candida akabanensis strains
TLDR
This study sought to isolate naturally occurring yeasts from plant biomass and determine their capabilities for transforming xylose into ethanol, and identified two lineages of microrganism associated with Galactomyces geotrichum and Candida akabanensis. Expand
D-Xylose assimilation via the Weimberg pathway by solvent-tolerant Pseudomonas taiwanensis VLB120.
TLDR
A comparison with in vivo results allows the conclusion that xylose is metabolized by P. taiwanensis VLB120 via the Weimberg pathway, ensuring a measurable and unique C-labelling distribution in proteinogenic amino acids for every possible distribution between the differentxylose metabolization routes. Expand
Partial Purification and Characterization of D-Ribose-5-phosphate Reductase from Adonis vernalis L . Leaves
This study presents evidence for a new enzyme, D-ribose-5-P reductase, which catalyzes the reaction: D-ribose-5-P + NADPH + H+ -Dribitol5-P + NADPI. The enzyme was isolated from Adonis vernalis L.Expand
Partial Purification and Characterization of d-Ribose-5-phosphate Reductase from Adonis vernalis L. Leaves.
This study presents evidence for a new enzyme, d-ribose-5-P reductase, which catalyzes the reaction: d-ribose-5-P + NADPH + H(+) --> d-ribitol-5-P + NADP(+). The enzyme was isolated from AdonisExpand
...
1
2
...

References

SHOWING 1-9 OF 9 REFERENCES
Metabolism of D-Xylose by Moulds
TLDR
A study of the pentose metabolism of the fungi which decompose this material is of interest not only because it is a basic phenomenon, but also, as it is somewhat unique, because it was found to be somewhat unique. Expand
ISOLATION AND PROPERTIES OF A PURE YEAST POLYPEPTIDASE
Enzyme Activity--The activity of all enzyme preparations was determined by measurement of leucyldiglycine hydrolysis. The stock substrate solution contained dl-leucyldiglycine (0.1 M), iYasHP04 (0.05Expand
A new spectrophotometric method for the detection and determination of keto sugars and trioses.
To 1.0 cc. of a solution containing 1 to 50 y of a ketohexose, either in free form or in the form of its esters or polymers, or 2 y of triose or glycolic aldehyde, is added 0.2 cc. of a 1.50 per centExpand
A new pathway of pentose metabolism.
  • C. Chiang, S. Knight
  • Chemistry, Medicine
  • Biochemical and biophysical research communications
  • 1960