Microbial community succession and bacterial diversity in soils during 77,000 years of ecosystem development

Dublin Core

Title

Microbial community succession and bacterial diversity in soils during 77,000 years of ecosystem development

Subject

MICROBIOLOGIA
SUELOS
ECOLOGIA
2008
BIBLIOGRAFÍA NACIONAL QUÍMICA

Abstract

The origins of the biological complexity and the factors that regulate the development of community composition, diversity and richness in soil remain largely unknown. To gain a better understanding of how bacterial communities change during soil ecosystem development, their composition and diversity in soils that developed over c. 77 000 years of intermittent aeolian deposition were studied. 16S rRNA gene clone libraries and fatty acid methyl ester (FAME) analyses were used to assess the diversity and composition of the communities. The bacterial community composition changed with soil age, and the overall diversity, richness and evenness of the communities increased as the soil habitat matured. When analysed using a multivariate Bray–Curtis ordination technique, the distribution of ribotypes showed an orderly pattern of bacterial community development that was clearly associated with soil and ecosystem development. Similarly, changes in the composition of the FAMEs across the chronosequence were associated with biomarkers for fungi, actinomycetes and Gram-positive bacteria. The development of the soil ecosystem promoted the development of distinctive microbial communities that were reminiscent of successional processes often evoked to describe change during the development of plant communities in terrestrial ecosystems.

Creator

Tarlera, Silvana
Jangid, Kamlesh
Ivester, Andrew H.
Whitman, William B.
Williams, Mark A.

Source

FEMS Microbiology Ecology v. 64, no. 1, 2008. -- p.129-140

Publisher

Wiley Online Library

Date

2008

Rights

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Format

PDF

Language

Inglés

Type

Artículo

Identifier

DOI:10.1111/j.1574-6941.2008.00444.x
Date Added
November 20, 2014
Collection
Bibliografía Nacional Química
Item Type
Document
Tags
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Citation
Tarlera, Silvana et al., “Microbial community succession and bacterial diversity in soils during 77,000 years of ecosystem development,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed November 17, 2025, https://riquim.fq.edu.uy/items/show/2030.