ダウンロード数: 354
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
s12562-012-0471-y.pdf | 1.39 MB | Adobe PDF | 見る/開く |
タイトル: | Sediment-complex-binding cellulose breakdown in wetlands of rivers |
著者: | Liu, Wen https://orcid.org/0000-0001-6139-3707 (unconfirmed) Toyohara, Haruhiko |
著者名の別形: | 劉, 文 豊原, 治彦 |
キーワード: | Bioreactor Cellulase Clay Plant residue River Sediment Wetland |
発行日: | May-2012 |
出版者: | Springer Verlag |
誌名: | Fisheries Science |
巻: | 78 |
号: | 3 |
開始ページ: | 661 |
終了ページ: | 665 |
抄録: | 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. |
著作権等: | The final publication is available at www.springerlink.com This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/156153 |
DOI(出版社版): | 10.1007/s12562-012-0471-y |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。