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Microbial utilization of simple and complex carbon compounds in a temperate forest soil

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F22%3A00560514" target="_blank" >RIV/61388971:_____/22:00560514 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/00216208:11310/22:10454569

  • Výsledek na webu

    <a href="https://www.sciencedirect.com/science/article/pii/S0038071722002437?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0038071722002437?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.soilbio.2022.108786" target="_blank" >10.1016/j.soilbio.2022.108786</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Microbial utilization of simple and complex carbon compounds in a temperate forest soil

  • Popis výsledku v původním jazyce

    Forest soil processes carried out by microorganisms are critical for the global carbon (C) cycle and climate. Characterizing the utilization of differently recalcitrant C sources is an important step towards understanding the ecosystem-level function of microorganisms in temperate forest soils. Here, using stable-isotope probing (SIP), we tracked C incorporation into bacterial and fungal biomass by quantifying 13C incorporation into phospholipid fatty acids (PLFA-SIP), its respiration (i.e., content in the produced CO2) and C accumulation by individual microbial taxa (DNA-SIP), following the addition of 13C-labelled substrates of different recalcitrance (citric acid, glucose, chitin, cellulose, hemicellulose, and plant biomass) in microcosms. The highest 13C respiration was observed after the addition of the low-molecular-mass substrates citric acid and glucose, while the highest 13C incorporation into microbial biomass was observed during growth on chitin. Communities of fungi and bacteria that incorporated 13C of various origins into their biomass differed from the original soil communities, as well as between treatments. The most distinct microbial community was observed in microcosms containing 13C-chitin, indicating its utilization by both fungi and bacteria. Bacterial taxa were more often versatile, incorporating C of various origins, while there was a higher share of fungi that were specialists. Together, our results show that lowmolecular-mass compounds that belong to typical root exudates are more readily respired, while the C from biopolymers studied was relatively more incorporated into microbial biomass. Various C sources are targeted by distinct microbial communities, although their composition partly overlaps due to the existence of generalist bacteria and fungi that are capable of utilizing various C sources.

  • Název v anglickém jazyce

    Microbial utilization of simple and complex carbon compounds in a temperate forest soil

  • Popis výsledku anglicky

    Forest soil processes carried out by microorganisms are critical for the global carbon (C) cycle and climate. Characterizing the utilization of differently recalcitrant C sources is an important step towards understanding the ecosystem-level function of microorganisms in temperate forest soils. Here, using stable-isotope probing (SIP), we tracked C incorporation into bacterial and fungal biomass by quantifying 13C incorporation into phospholipid fatty acids (PLFA-SIP), its respiration (i.e., content in the produced CO2) and C accumulation by individual microbial taxa (DNA-SIP), following the addition of 13C-labelled substrates of different recalcitrance (citric acid, glucose, chitin, cellulose, hemicellulose, and plant biomass) in microcosms. The highest 13C respiration was observed after the addition of the low-molecular-mass substrates citric acid and glucose, while the highest 13C incorporation into microbial biomass was observed during growth on chitin. Communities of fungi and bacteria that incorporated 13C of various origins into their biomass differed from the original soil communities, as well as between treatments. The most distinct microbial community was observed in microcosms containing 13C-chitin, indicating its utilization by both fungi and bacteria. Bacterial taxa were more often versatile, incorporating C of various origins, while there was a higher share of fungi that were specialists. Together, our results show that lowmolecular-mass compounds that belong to typical root exudates are more readily respired, while the C from biopolymers studied was relatively more incorporated into microbial biomass. Various C sources are targeted by distinct microbial communities, although their composition partly overlaps due to the existence of generalist bacteria and fungi that are capable of utilizing various C sources.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    10606 - Microbiology

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/GA22-30769S" target="_blank" >GA22-30769S: Cyklus uhlíku v půdách a globální změny: vliv depozice dusíku</a><br>

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2022

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Soil Biology and Biochemistry

  • ISSN

    0038-0717

  • e-ISSN

  • Svazek periodika

    173

  • Číslo periodika v rámci svazku

    October 2022

  • Stát vydavatele periodika

    GB - Spojené království Velké Británie a Severního Irska

  • Počet stran výsledku

    10

  • Strana od-do

    108786

  • Kód UT WoS článku

    000843493300001

  • EID výsledku v databázi Scopus

    2-s2.0-85135684009