Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales

Abstract The incredibly complex soil microbial communities at small scales make their analysis and identification of reasons for the observed structures challenging. Microbial community structure is mainly a result of the inoculum (dispersal), the selective advantages of those organisms under the ha...

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Main Authors: Vadakattu V. S. R. Gupta, James M. Tiedje
Format: Article
Language:English
Published: Wiley 2024-03-01
Series:mLife
Subjects:
Online Access:https://doi.org/10.1002/mlf2.12116
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author Vadakattu V. S. R. Gupta
James M. Tiedje
author_facet Vadakattu V. S. R. Gupta
James M. Tiedje
author_sort Vadakattu V. S. R. Gupta
collection DOAJ
description Abstract The incredibly complex soil microbial communities at small scales make their analysis and identification of reasons for the observed structures challenging. Microbial community structure is mainly a result of the inoculum (dispersal), the selective advantages of those organisms under the habitat‐based environmental attributes, and the ability of those colonizers to sustain themselves over time. Since soil is protective, and its microbial inhabitants have long adapted to varied soil conditions, significant portions of the soil microbial community structure are likely stable. Hence, a substantial portion of the community will not correlate to often measured soil attributes. We suggest that the drivers be ranked on the basis of their importance to the fundamental needs of the microbes: (i) those that supply energy, i.e., organic carbon and electron acceptors; (ii) environmental effectors or stressors, i.e., pH, salt, drought, and toxic chemicals; (iii) macro‐organism associations, i.e., plants and their seasonality, animals and their fecal matter, and soil fauna; and (iv) nutrients, in order, N, P, and probably of lesser importance, other micronutrients, and metals. The relevance of drivers also varies with spatial and time scales, for example, aggregate to field to regional, and persistent to dynamic populations to transcripts, and with the extent of phylogenetic difference, hence phenotypic differences in organismal groups. We present a summary matrix to provide guidance on which drivers are important for particular studies, with special emphasis on a wide range of spatial and temporal scales, and illustrate this with genomic and population (rRNA gene) data from selected studies.
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spelling doaj.art-ef4f10641a0b4bc487695c470061051c2024-03-29T16:09:55ZengWileymLife2770-100X2024-03-0131214110.1002/mlf2.12116Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scalesVadakattu V. S. R. Gupta0James M. Tiedje1CSIRO Agriculture & Food Urrbrae South Australia AustraliaCentre for Microbial Ecology Michigan State University East Lansing Michigan USAAbstract The incredibly complex soil microbial communities at small scales make their analysis and identification of reasons for the observed structures challenging. Microbial community structure is mainly a result of the inoculum (dispersal), the selective advantages of those organisms under the habitat‐based environmental attributes, and the ability of those colonizers to sustain themselves over time. Since soil is protective, and its microbial inhabitants have long adapted to varied soil conditions, significant portions of the soil microbial community structure are likely stable. Hence, a substantial portion of the community will not correlate to often measured soil attributes. We suggest that the drivers be ranked on the basis of their importance to the fundamental needs of the microbes: (i) those that supply energy, i.e., organic carbon and electron acceptors; (ii) environmental effectors or stressors, i.e., pH, salt, drought, and toxic chemicals; (iii) macro‐organism associations, i.e., plants and their seasonality, animals and their fecal matter, and soil fauna; and (iv) nutrients, in order, N, P, and probably of lesser importance, other micronutrients, and metals. The relevance of drivers also varies with spatial and time scales, for example, aggregate to field to regional, and persistent to dynamic populations to transcripts, and with the extent of phylogenetic difference, hence phenotypic differences in organismal groups. We present a summary matrix to provide guidance on which drivers are important for particular studies, with special emphasis on a wide range of spatial and temporal scales, and illustrate this with genomic and population (rRNA gene) data from selected studies.https://doi.org/10.1002/mlf2.12116abundancecommunity structurediversityfunctional microbiomemicroorganisms
spellingShingle Vadakattu V. S. R. Gupta
James M. Tiedje
Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
mLife
abundance
community structure
diversity
functional microbiome
microorganisms
title Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
title_full Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
title_fullStr Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
title_full_unstemmed Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
title_short Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
title_sort ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales
topic abundance
community structure
diversity
functional microbiome
microorganisms
url https://doi.org/10.1002/mlf2.12116
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