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KMID : 0903519980410050337
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1998 Volume.41 No. 5 p.337 ~ p.341
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Effect of pHs on Morphological and Cultural Characteristics of Alkalophilic Coryneform Bacteria TU-19
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강선철/Kang, Sun Chul
최명철/양재섭/황철원/Choi, Myoung Chul/Yang, Jae Sub/Hwang, Cher Won
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Abstract
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The morphological and cultural characteristics of alkalophilic Coryneform bacteria TU-19 were investigated at various pHs. This bacterium showed normal growth pattern at pH9.0∼10.0, but the cell growth was completely inhibited at extreme pH (12.0 or more). Interestingly, at pH 8.0 the morphology of the bacterial cells seems to form convoluted filaments during the exponential growth phase while at pH 10.0, the optimal pH for the growth of this organism, the bacteria grew with variable paired or single forms, and straight rods during growth stages. Growing in alkaline media (pH9.0∼11.0), it adjusted the pH of the culture media to around pH 8.5 by itself.
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