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Identification of the extracellular polysaccharide produced by the snow mold fungus Microdochium nivale |
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| Authors: | Ulrike Schweiger-Hufnagel Tomoko Ono Kazuo Izumi Peter Hufnagel Naoki Morita Harumi Kaga Mikio Morita Tamotsu Hoshino Isao Yumoto Naoyuki Matsumoto Midori Yoshida Michiko Takagi Sawada Hidetoshi Okuyama |
| Institution: | (1) Bioscience and Chemistry Division, Hokkaido National Industrial Research Institute, AIST/MITI, Toyohira-ku, Sapporo, 062-8517, Japan;(2) Laboratory of Environmental Molecular Biology, Graduate School of Environmental Earth Science, Hokkaido University, Kita-ku, Sapporo, 060-0810, Japan;(3) National Institute of Agro-Environmental Sciences, Kan-non dai, Tsukuba, 305-8604, Japan;(4) Hokkaido National Agricultural Experiment Station, Toyohira-ku, Sapporo, 062-8555, Japan |
| Abstract: | A water-insoluble, extracellular polysaccharide was isolated from the culture medium of the snow mold fungus, Microdochium nivale, that had been cultivated in potato/dextrose broth. The polysaccharide consisted of glucose only. Its Fourier transform infrared spectrum showed a beta configuration of the C1 position of glucose. Linkage analysis of the polysaccharide showed that it had a linear structure of  -(1 4)-linked glucose. The polysaccharide was therefore identified as cellulose. This is the first report of extracellular cellulose occurring in fungi. |
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