Scientific Reports of the Faculty of Agriculture, Okayama University
Published by the Faculty of Agriculture, Okayama University
ONLINE ISSN : 2186-7755

Photochemical Products from Ergosterol in the Plasma Membrane of the Yeast Rhodotorula minuta cells illuminated by Near-UV

Nakauma, Makoto
Iriyama, Takuya
Tada, Mikiro
Published Date
2000-02
Abstract
When the plasma mumbrane of the yeast Rhodotorula minuta cells was exposed to near-UV at 0℃, three new compounds were formes photochemically with decrease in ergosterol content. When 0.4%-SDS solution containing ergosterol was illuminated with near-UV, the same three compounds as in the membrane were formed. As a result of instruments analysis, one of three photochemical products was identified as previtamine D2 and another two compounds were characterized chemically that they had the structure of ergosta-4, 7, 22-trein-3-on. In addition, these photochemical products did not affect the growth and carotenogenesis of the yeast Rhodotorulaminuta.
Keywords
Rhodotorula minuta
near-UV
ergosterol
photochemical products
ISSN
0474-0254
NCID
AN00033029