Mineralization of Detrital Lignocelluloses by Salt Marsh Sediment Microflora †
AUTOR(ES)
Maccubbin, A. E.
RESUMO
Specifically radiolabeled 14C-(cellulose)-lignocellulose and 14C-(lignin)-lignocellulose were isolated from labeled cuttings of Spartina alterniflora (cordgrass) and Pinus elliottii (slash pine). These were used to estimate the rates of mineralization to CO2 of lignocelluloses of estuarine and terrestrial origin in salt marsh estuarine sediments. The lignin moiety of pine lignocellulose was mineralized 10 to 14 times more slowly than that of Spartina lignocellulose, depending on the source of inoculum. Average values for percent mineralization after 835 h of incubation were 1.4 and 13.9%, respectively. For Spartina lignocellulose, mineralization of the cellulose moiety was three times faster than that of the lignin moiety. Average values for percent mineralization after 720 h of incubation were 32.1 and 10.6%, respectively. Lignocellulose and lignin contents of live pine and Spartina plants were analyzed and found to be 60.7 and 20.9%, respectively, for pine and 75.6 and 15.1%, respectively, for Spartina.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=291653Documentos Relacionados
- Arylsulfatase Activity in Salt Marsh Soils †
- Tracer Analysis of Methanogenesis in Salt Marsh Soils †
- Phylogenetic diversity of Archaea in sediment samples from a coastal salt marsh.
- Microbiological and Physical Properties of Salt Marsh and Microecosystem Sediments †
- Anaerobic Biodegradation of the Lignin and Polysaccharide Components of Lignocellulose and Synthetic Lignin by Sediment Microflora †