The Synergistic Effects among β-1, 3-Glucanases from Oerskovia sp. CK on Lysis of Viable Yeast Cells
1977
Oerskovia sp. CK produced three types of β-1,3-glucanases designated as F-L, F-0 and F-2. F-L showed high lytic activity to viable yeast cells and weak activity to yeast glucan. F-0 and F-2 had little or no lytic activity and strong β-1,3-gIucanase activity.F-0 or F-2 showed high lytic activities to yeast cells pretreated with small amounts of F-L which did not lysed the cells. Lytic activity of F-0 or F-2 also increased when cells were treated with alkaline pH or with both reducing agents and pH.From these results, it is supposed that the ineffectiveness of F-0 or F-2 on the lysis of yeast cells might be attributed to a spatial inaccessibility of enzymes to the yeast glucan layer. However, the treatment of F-L, alkaline pH and reducing agents would bring about a modification of cells to give F-0 or F-2 access to the wall glucan and consequently the lysis of cells would occur.
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