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.
- 2012-05-01
著者
-
Toyohara Haruhiko
Division Of Applied Biosciences Graduate School Of Agriculture Kyoto University
-
Liu Wen
Division Of Applied Biosciences Graduate School Of Agriculture Kyoto University
関連論文
- Seasonal change in the level of collagen breakdown in red sea bream muscle
- Molecular-based method to distinguish sympatric deep-sea whelks, Buccinum striatissimum and Buccinum tenuissimum in the Sea of Japan
- Osmo-responsive expression of oyster amino acid transporter gene and analysis of the regulatory region involved
- Expression of taurine transporter in response to hypo-osmotic stress in the mantle of Mediterranean blue mussel
- Expression of HSP70 in response to heat-shock and its cDNA cloning from Mediterranean blue mussel
- cDNA cloning of oyster matrix metalloproteinase and its possible involvement in hypoxic adaptation
- Sequence and polymerase chain reaction-restriction fragment length polymorphism analysis of the large subunit rRNA gene of bivalve : Simple and widely applicable technique for multiple species identification of bivalve larva
- Taurine transporter from the giant Pacific oyster Crassostrea gigas : function and expression in response to hyper- and hypo-osmotic stress
- cDNA cloning of Japanese oyster stress protein homologous to the mammalian 78-kDa glucose regulated protein and its induction by heatshock
- Solubilization of type I collagen from fish muscle connective tissue by matrix metalloproteinase-9 at chilled temperature
- Cloning and characterization of cDNA for carp matrix metalloproteinase 9
- Possible implication of metalloproteinases in post-mortem tenderization of fish muscle
- Induction of gelatinolytic activities in ayu muscle at the spawning stage
- Gelatinolytic Activities in Ayu Muscle in the Spawning Stage
- cDNA Cloning of Heat-inducible HSP70, a 70.6kDa Heat Shock Protein, in Japanese Flounder Paralichtys olivaceus
- Occurrence of Gelatinolytic Activities in Yellowtail Tissues
- Effect of Steroid Hormone Administration on the Breakdown of Muscle Proteins in Ayu
- Complementary DNA Cloning of HSC71, a 71 kDa Heat Shock Cognate Protein, in Japanese Flounder Paralichtys olivaceus
- Effect of Maturation on the Contents of Free and Bound Forms of Hydroxyproline in Ayu Muscle
- Structure and Transcription of the Gene Coding for Polypeptide Chain Elongation Factor 1α of Medaka Oryzias latipes
- Sequence and Expression of a cDNA Encoding Japanese Flounder Glucocorticoid Receptor
- Suppression of Apoptosis of Fish Cells by Acclimation to Hypertonicity
- cDNA Cloning of Polypeptide Chain Elongation Factor 1α from Medaka Oryzias latipes
- Existence of Two Isoforms of Extracellular Signal-Regulated Kinase in Fish^1
- Induction of Apoptosis in Fish Cells by Hypertonic Stress
- Cell Growth of Fish Cultures in Hyper-and Hypoosmotic Media
- Cellulose digestion by common Japanese freshwater clam Corbicula japonica
- Molecular cloning and characterization of a tissue inhibitor of metalloproteinase-2 from red seabream cultured cells
- Distribution of immunoglobulin-positive cells in the spleen and kidney of Japanese flounder Paralichthys olivaceus
- Transgenic Medaka Overexpressing a Melanin-Concentrating Hormone Exhibit Lightened Body Color but No Remarkable Abnormality
- Solubilization of type I and V collagens in Japanese flounder muscle during chilled storage
- Seasonal change in collagen content of red seabream muscle
- Seasonal Change in Muscle Firmness and Proximate Composition of Red Seabream
- Ca^ transport activity of scallop divalent metal transporter at the concentration of seawater level
- Immunological detection of translation products of type V/XI collagen α1 gene and their degradation products in red sea bream muscle
- Effects of hyper-and hypoosmotic stress on protein synthesis in cultured epidermal cells of common carp
- Freshwater bivalve Corbicula sandai uses free amino acids as osmolytes under hyperosmotic condition
- Effect of salinity change on free amino acid content in Pacific oyster
- Characterization of Distinct Subpopulations of Japanese Flounder Lymphocytes with Monoclonal Antibody against Serum Immunoglobulin
- Widespread distribution of cellulase and hemicellulase activities among aquatic invertebrates
- Role of post-settlement mortality in the establishment of Acropora reef slope zonation in Ishigaki Island, Japan
- Function of meiobenthos and microorganisms in cellulose breakdown in sediments of wetlands with different origins in Hokkaido
- Sediment-complex-binding cellulose breakdown in wetlands of rivers
- Cellulase activity in meiobenthos in wetlands
- Cellulase Activity in Blood Cockle (Anadara granosa) in the Matang Mangrove Forest Reserve, Malaysia
- Animal cellulases with a focus on aquatic invertebrates
- Existence of Two Isoforms of Extracellular Signal-Regulated Kinase in Fish.