[The activity of xylose reductase and xylitol dehydrogenase in yeasts].

Abstract

The activity and the cofactor specificity of xylose reductase and xylitol dehydrogenase were studied in extracts of yeasts from the genera Candida, Kluyveromyces, Pachysolen, Pichia, and Torulopsis grown under microaerobic conditions. It was found that xylitol dehydrogenase in all of the yeast species studied is specific for NAD+; xylose reductase in the xylitol-producing species C. didensiae, C. intermediae, C. parapsilosis, C. silvanorum, C. tropicalis, Kl. fragilis, Kl. marxianus, P. guillermondii, and T. molishiama is specific for NADPH; and xylose reductase in the ethanol-producing species P. stipitis, C. shehatae, and Pa. tannophilus is specific for both NADPH and NADH.

• Authors: E N Iablochkova, O I Bolotnikova, N P Mikhaĭlova, N N Nemova, A I Ginak
• Journal: Mikrobiologiia (Mikrobiologiia) 2003 Jul-Aug Vol. 72 Issue 4 Pg. 466-9 ISSN: 0026-3656 [Print] Russia (Federation)
• Vernacular Title: Issledovanie aktivnosti ksilozoreduktazy i ksilitdegidrogenazy u drozhzheĭ.
• PMID: 14526534 (Publication Type: Comparative Study, English Abstract, Journal Article)

Chemical References

• NAD
• NADP
• Xylose
• Sugar Alcohol Dehydrogenases
• Aldehyde Reductase
• D-Xylulose Reductase

Topics

• Aerobiosis
• Aldehyde Reductase (metabolism)
• D-Xylulose Reductase
• NAD (metabolism)
• NADP (metabolism)
• Sugar Alcohol Dehydrogenases (metabolism)
• Xylose (metabolism)
• Yeasts (enzymology, growth & development)