Cellulose utilization in forest litter and soil: identification of bacterial and fungal decomposers
Jazyk angličtina Země Anglie, Velká Británie Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- Bacteria genetika izolace a purifikace metabolismus MeSH
- biomasa MeSH
- celulosa metabolismus MeSH
- DNA bakterií izolace a purifikace MeSH
- DNA fungální izolace a purifikace MeSH
- geny hub MeSH
- houby genetika izolace a purifikace metabolismus MeSH
- izotopy uhlíku analýza MeSH
- polymorfismus délky restrikčních fragmentů MeSH
- půda MeSH
- půdní mikrobiologie * MeSH
- sekvenční analýza DNA MeSH
- smrk mikrobiologie MeSH
- stromy mikrobiologie MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- celulosa MeSH
- DNA bakterií MeSH
- DNA fungální MeSH
- izotopy uhlíku MeSH
- půda MeSH
Organic matter decomposition in the globally widespread coniferous forests has an important role in the carbon cycle, and cellulose decomposition is especially important in this respect because cellulose is the most abundant polysaccharide in plant litter. Cellulose decomposition was 10 times faster in the fungi-dominated litter of Picea abies forest than in the bacteria-dominated soil. In the soil, the added (13)C-labelled cellulose was the main source of microbial respiration and was preferentially accumulated in the fungal biomass and cellulose induced fungal proliferation. In contrast, in the litter, bacterial biomass showed higher labelling after (13)C-cellulose addition and bacterial biomass increased. While 80% of the total community was represented by 104-106 bacterial and 33-59 fungal operational taxonomic units (OTUs), 80% of the cellulolytic communities of bacteria and fungi were only composed of 8-18 highly abundant OTUs. Both the total and (13)C-labelled communities differed substantially between the litter and soil. Cellulolytic bacteria in the acidic topsoil included Betaproteobacteria, Bacteroidetes and Acidobacteria, whereas these typically found in neutral soils were absent. Most fungal cellulose decomposers belonged to Ascomycota; cellulolytic Basidiomycota were mainly represented by the yeasts Trichosporon and Cryptococcus. Several bacteria and fungi demonstrated here to derive their carbon from cellulose were previously not recognized as cellulolytic.
Citace poskytuje Crossref.org
Enzymatic degradation of cellulose in soil: A review
De novo metatranscriptomic exploration of gene function in the millipede holobiont
Forest Microhabitat Affects Succession of Fungal Communities on Decomposing Fine Tree Roots
Feed in summer, rest in winter: microbial carbon utilization in forest topsoil
Forest Soil Bacteria: Diversity, Involvement in Ecosystem Processes, and Response to Global Change
When the forest dies: the response of forest soil fungi to a bark beetle-induced tree dieback
Fungal community on decomposing leaf litter undergoes rapid successional changes