Moisture Is More Important than Temperature for Assembly of Both Potentially Active and Whole Prokaryotic Communities in Subtropical Grassland.

Autor: Lupatini M; Departamento de Solos, Programa de Pós-graduação em Ciência do Solo, Universidade Federal de Santa Maria, Roraima, 1000, Santa Maria, 97105-900, Brazil., Suleiman AKA; Departamento de Solos, Programa de Pós-graduação em Ciência do Solo, Universidade Federal de Santa Maria, Roraima, 1000, Santa Maria, 97105-900, Brazil.; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands., Jacques RJS; Departamento de Solos, Programa de Pós-graduação em Ciência do Solo, Universidade Federal de Santa Maria, Roraima, 1000, Santa Maria, 97105-900, Brazil., Lemos LN; Laboratório de Biologia Molecular e Celular, Centro de Energia Nuclear na Agricultura CENA, Universidade de São Paulo USP, Piracicaba, SP, Brazil., Pylro VS; Department of Biology, Federal University of Lavras - UFLA, Lavras, Minas Gerais, Brazil., Van Veen JA; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands., Kuramae EE; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands., Roesch LFW; Centro Interdisciplinar de Pesquisas em Biotecnologia - CIP-Biotec, Universidade Federal do Pampa, Campus São Gabriel, Avenida Antonio Trilha, 1847, São Gabriel, 97300-000, Brazil. luizroesch@unipampa.edu.br.
Jazyk: angličtina
Zdroj: Microbial ecology [Microb Ecol] 2019 Feb; Vol. 77 (2), pp. 460-470. Date of Electronic Publication: 2019 Jan 03.
DOI: 10.1007/s00248-018-1310-1
Abstrakt: Moisture and temperature play important roles in the assembly and functioning of prokaryotic communities in soil. However, how moisture and temperature regulate the function of niche- versus neutral-based processes during the assembly of these communities has not been examined considering both the total microbial community and the sole active portion with potential for growth in native subtropical grassland. We set up a well-controlled microcosm-based experiment to investigate the individual and combined effects of moisture and temperature on soil prokaryotic communities by simulating subtropical seasons in grassland. The prokaryotic populations with potential for growth and the total prokaryotic community were assessed by 16S rRNA transcript and 16S rRNA gene analyses, respectively. Moisture was the major factor influencing community diversity and structure, with a considerable effect of this factor on the total community. The prokaryotic populations with potential for growth and the total communities were influenced by the same assembly rules, with the niche-based mechanism being more influential in communities under dry condition. Our results provide new information regarding moisture and temperature in microbial communities of soil and elucidate how coexisting prokaryotic populations, under different physiological statuses, are shaped in native subtropical grassland soil.
Databáze: MEDLINE
Externí odkaz: