Sediment-complex-binding cellulose breakdown in wetlands of rivers
スポンサーリンク
概要
- 論文の詳細を見る
We have been assessing the activity level of cellulase in wetland sediments to clarify the significance of cellulase for the turnover of plant cellulose in wetlands. In this study, we investigated the cellulose degrading function of sediment in wetlands to clarify the biochemical breakdown mechanism of cellulose. Specifically, we measured cellulase activities of sediments collected from wetlands of the Chikugo River (Fukuoka Prefecture), Midori River (Kumamoto Prefecture), Hamado River (Kumamoto Prefecture), Yodo River (Osaka Prefecture), and Tanaka River (Mie Prefecture). The results revealed that the activity levels differed significantly among rivers. Additionally, the cellulase activities of the sediment were not completely suppressed in the presence of chloramphenicol. These findings suggested that a portion of the cellulase activities were derived from cellulases binding to the components of sediments. Actually, sediments also showed the ability to bind fungal cellulase. Comparison of the binding ability of clay and plant residues, the main components of sediments, revealed that plant residues had significantly higher abilities to bind cellulase. This finding was supported by the fact that there was a strong correlation between the organic matter content in the sediment and the cellulase-binding ability (R = 0.66). Results of this study show that sediment complexes harboring cellulases might function as a bioreactor to degrade cellulose in wetlands.
論文 | ランダム
- 217 高分子系複合材料の制振特性のマイクロメカニックス解析
- 同一地区でヒトと野生ハトから分離されたサルモネラ由来接合性Rブラスミドの遺伝学的および分子生物学的性状
- 果樹園用シ-トマルチ資材の耐用性に関する研究
- 不織布資材被覆による早生温州の樹上完熟栽培
- ブドウ幼木の休眠打破と萌芽後の新梢発育に及ぼす電気刺激の影響