Mannitol and Mannitol Dehydrogenases in Conidia of Aspergillus oryzae
AUTOR(ES)
Horikoshi, Koki
RESUMO
Horikoshi, Koki (The Institute of Physical and Chemical Research, Tokyo, Japan), Shigeji Iida, and Yonosuke Ikeda. Mannitol and mannitol dehydrogenases in conidia of Aspergillus oryzae. J. Bacteriol. 89:326–330. 1965.—A sugar alcohol was isolated from the conidia of Aspergillus oryzae and identified as d-mannitol. Two types of d-mannitol dehydrogenases, nicotinamide adenine dinucleotide phosphate-linked and nicotinamide adenine dinucleotide-linked, were found in the conidia. Substrate specificities, pH optima, Michaelis-Menton constants, and the effects of inhibitors were studied. d-Mannitol was converted to fructose by the dehydrogenases. Synthesis of d-mannitol dehydrogenases was not observed during germination; the content of d-mannitol decreased at an early stage of germination. It was assumed, therefore, that d-mannitol might be used as the source of endogenous respiration and provide energy for the germination.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=305512Documentos Relacionados
- Trehalase in Conidia of Aspergillus oryzae
- Production of d-Mannitol by Conidia of Aspergillus candidus1
- Neutrophil chemotactic responses induced by fresh and swollen Rhizopus oryzae spores and Aspergillus fumigatus conidia.
- Kinetics of deoxynivalenol degradation by Aspergillus oryzae and Rhizopus oryzae in submerged fermentation
- Extracellular proteinases of Aspergillus oryzae.
