The Changes of Glutathione and Ergosterol in Saccharomyces cerevisiae Under High Pressure
- VernacularTitle:压力作用下面包酵母胞内谷胱甘肽和麦角固醇的变化
- Author:
Chang-Sheng QIAO
;
Bo-Ning LIU
;
Xu XU
;
Shi-Ru JIA
;
- Publication Type:Journal Article
- Keywords:
High pressure Glutathione Ergosterol Saccharomyces cerevisiae
- From:
China Biotechnology
2006;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The growth changes of glutathione (GSH) and ergosterol in Saccharomyces cerevisiae (CICC1447 and CICC1339) were detected under 0.5Mpa pressure with compressed high-pure air (O-2∶N-2=21∶79). The results showed that logarithmic phases of the two strains were delayed; their biomass and special growth rate were lower than those of control sample (0.1MPa) and the double time were prolonged under 0.5MPa. High-pressure could increase the content of GSH obviously, compared to ambient atmosphere control samples. When the holding time was 3h, the content of GSH and ergosterol in CICC1447 increased 42.6% and 20.1%, respectively. However, the content of GSH in CICC1339 increased 58.7% when the holding time was 6h, while ergosterol content reduced. The results indicated that different yeast strains have different stress-response mechanism to copy with high-pressure shock.
