Effects of sterol manipulation on microsomal desaturase activities in Tetrahymena: with regard to thermal acclimation.
作者： Shigenobu Umeki , Yoshinori Nozawa
DOI: 10.1016/0006-291X(83)90436-9
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摘要: There was a great increase in microsomal palmitoyl-CoA desaturase activity of ergosterol-replaced Tetrahymena (ergosterol-cells), which exhibited pronounced elevation palmitoleate (16:1 delta 9) fatty acid composition. At 2 hr after the growth temperature-shift from 34 to 15 degrees C (shift-down), ergosterol-cells increased 6-fold compared that native cells containing tetrahymanol before shift-down. These results suggest that, unlike drastic increases palmitoyl-CoA, stearoyl-CoA and oleoyl-CoA activities by shift-down cells, accomplish an adaptive modification composition preferential activity, being is principally due content terminal component (cyanide sensitive factor; CSF) system.
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