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Succession of Microbial Decomposers Is Determined by Litter Type, but Site Conditions Drive Decomposition Rates
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SYSNO ASEP 0520827 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Succession of Microbial Decomposers Is Determined by Litter Type, but Site Conditions Drive Decomposition Rates Tvůrce(i) Burešová, A. (CZ)
Kopecký, J. (CZ)
Hrdinková, V. (CZ)
Kameník, Zdeněk (MBU-M) RID, ORCID
Omelka, M. (CZ)
Sagová-Marečková, M. (CZ)Číslo článku e01760-19 Zdroj.dok. Applied and Environmental Microbiology. - : American Society for Microbiology - ISSN 0099-2240
Roč. 85, č. 24 (2019)Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova succession ; enzyme activities ; forest Vědní obor RIV EE - Mikrobiologie, virologie Obor OECD Microbiology Způsob publikování Open access s časovým embargem (01.06.2020) Institucionální podpora MBU-M - RVO:61388971 UT WOS 000499697300015 EID SCOPUS 85075813685 DOI 10.1128/AEM.01760-19 Anotace Soil microorganisms are diverse, although they share functions during the decomposition of organic matter. Thus, preferences for soil conditions and litter quality were explored to understand their niche partitioning. A 1-year-long litterbag transplant experiment evaluated how soil physicochemical traits of contrasting sites combined with chemically distinct litters of sedge (S), milkvetch (M) from a grassland, and beech (B) from forest site decomposition. Litter was assessed by mass loss: C, N, and P contents: and low-molecular-weight compounds. Decomposition was described by the succession of fungi, Actinobacteria, Alphaproteobacteria, and Firmicutes: bacterial diversity: and extracellular enzyme activities. The M litter decomposed faster at the nutrient-poor forest site, where the extracellular enzymes were more active, but microbial decomposers were not more abundant. Actinobacteria abundance was affected by site, while Firmicutes and fungi by litter type and Alphaproteobacteria by both factors. Actinobacteria were characterized as late-stage substrate generalists, while fungi were recognized as substrate specialists and site generalists, particularly in the grassland. Overall, soil conditions determined the decomposition rates in the grassland and forest, but successional patterns of the main decomposers (fungi and Actinobacteria) were determined by litter type. These results suggest that shifts in vegetation mostly affect microbial decomposer community composition.
IMPORTANCE Anthropogenic disturbance may cause shifts in vegetation and alter the litter input. We studied the decomposition of different litter types under soil conditions of a nutrient-rich grassland and nutrient-poor forest to identify factors responsible for changes in the community structure and succession of microbial decomposers.Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2020 Elektronická adresa https://aem.asm.org/content/85/24/e01760-19
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