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Stable strain of K. hansenii ATCC 53582 and unstable strain K. xylinus E25 generating Cel− and Cel+ forms.A. Stationary culture – thin homogenous BNC membrane formed on the SH medium surface.B. Microscopic pictures of colonies formed by the K. xylinus E25 Cel− and Cel+ forms and K. hansenii ATCC53582.C. Agitated culture – cellulose biosynthesis in the form of small beads (K. hanseii ATCC 53582 and K. xylinus E25 Cel+) or lack of BNC biosynthesis (K. xylinus E25 Cel−).
