嫌気性ルーメンツボカビ菌Piromyces sp.P1によるセルロース分解とメタン菌の存在

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  • 嫌気性ルーメンツボカビ菌 Piromyces sp. P1 によるセルロース分解とメタン菌の存在(農学部門)
  • ケンキセイ ルーメンツボカビキン Piromyces sp.P1 ニヨル セル
  • Cellulose digestion by a ruminal anaerobic fungus, Piromyces sp. P1,with or without methanogen (Agriculture)

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Cellulose digestion by Piromyces sp. P1,a ruminal anaerobic fungus, was determined under the existence of methanogen. The digestibility without methanogen was 44.3%, but the existence of methanogen improved the digestibility to 65.5%. This may be caused by the ease of hydrogen production under the existence of methanogen. Hydrogen and carbon monoxide were added to inhibit hydrogen production by Piromyces sp. P1. Addition of 50% hydrogen depressed the digestibility to 34.5%, and that of carbon monoxide much more depressed it to 16.6%. These results suggest that the reduction of hydrogen partial pressure by methanogen may improve the cellulose deigestion by Piromyces sp. P1.

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