Deadwood-Inhabiting Bacteria Show Adaptations to Changing Carbon and Nitrogen Availability During Decomposition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F21%3A00546768" target="_blank" >RIV/61388971:_____/21:00546768 - isvavai.cz</a>
Result on the web
<a href="https://www.frontiersin.org/articles/10.3389/fmicb.2021.685303/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fmicb.2021.685303/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fmicb.2021.685303" target="_blank" >10.3389/fmicb.2021.685303</a>

Result language
angličtina
Original language name
Deadwood-Inhabiting Bacteria Show Adaptations to Changing Carbon and Nitrogen Availability During Decomposition
Original language description
Deadwood decomposition is responsible for a significant amount of carbon (C) turnover in natural forests. While fresh deadwood contains mainly plant compounds and is extremely low in nitrogen (N), fungal biomass and N content increase during decomposition. Here, we examined 18 genome-sequenced bacterial strains representing the dominant deadwood taxa to assess their adaptations to C and N utilization in deadwood. Diverse gene sets for the efficient decomposition of plant and fungal cell wall biopolymers were found in Acidobacteria, Bacteroidetes, and Actinobacteria. In contrast to these groups, Alphaproteobacteria and Gammaproteobacteria contained fewer carbohydrate-active enzymes and depended either on low-molecular-mass C sources or on mycophagy. This group, however, showed rich gene complements for N-2 fixation and nitrate/nitrite reduction-key assimilatory and dissimilatory steps in the deadwood N cycle. We show that N-2 fixers can obtain C independently from either plant biopolymers or fungal biomass. The succession of bacteria on decomposing deadwood reflects their ability to cope with the changing quality of C-containing compounds and increasing N content.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10606 - Microbiology

Project
<a href="/en/project/GC21-09334J" target="_blank" >GC21-09334J: Linking microclimate, deadwood microbial diversity, adaption mechanisms and ecosystem processes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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