Effect of Sugarcane Burning or Green Harvest Methods on the Brazilian Cerrado Soil Bacterial Community Structure

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2013 Mar 28

PMID 23533619

Citations 16

Authors

Caio T C C Rachid

Adriana L Santos

Marisa C Piccolo

Fabiano C Balieiro

Heitor L C Coutinho

Raquel S Peixoto

James M Tiedje

Alexandre S Rosado

Affiliations

Soon will be listed here.

Abstract

Background: The Brazilian Cerrado is one of the most important biodiversity reservoirs in the world. The sugarcane cultivation is expanding in this biome and necessitates the study of how it may impact the soil properties of the Cerrado. There is a lack of information especially about the impacts of different sugarcane management on the native bacterial communities of Cerrado soil. Therefore, our objective was to evaluate and compare the soil bacterial community structure of the Cerrado vegetation with two sugarcane systems.

Methods: We evaluated samples under native vegetation and the impact of the two most commonly used management strategies for sugarcane cultivation (burnt cane and green cane) on this diversity using pyrosequencing and quantitative PCR of the rrs gene (16S rRNA).

Results And Conclusions: Nineteen different phyla were identified, with Acidobacteria (≈35%), Proteobacteria (≈24%) and Actinobacteria (≈21%) being the most abundant. Many of the sequences were represented by few operational taxonomic units (OTUs, 3% of dissimilarity), which were found in all treatments. In contrast, there were very strong patterns of local selection, with many OTUs occurring only in one sample. Our results reveal a complex bacterial diversity, with a large fraction of microorganisms not yet described, reinforcing the importance of this biome. As possible sign of threat, the qPCR detected a reduction of the bacterial population in agricultural soils compared with native Cerrado soil communities. We conclude that sugarcane cultivation promoted significant structural changes in the soil bacterial community, with Firmicutes phylum and Acidobacteria classes being the groups most affected.

Citing Articles

Assessment of soil bacterial communities in integrated crop production systems within the Amazon Biome, Brazil: a comparative study.

do Carmo K, Dias R, de Quadros P, Berber G, Bourscheidt M, de Farias Neto A Braz J Microbiol. 2024; 55(3):2815-2825.

PMID: 38696039 PMC: 11405747. DOI: 10.1007/s42770-024-01352-8.

The profile of the soil microbiota in the Cerrado is influenced by land use.

de Souza L, Procopio L Appl Microbiol Biotechnol. 2021; 105(11):4791-4803.

PMID: 34061229 DOI: 10.1007/s00253-021-11377-w.

Soil Metagenomics Reveals Effects of Continuous Sugarcane Cropping on the Structure and Functional Pathway of Rhizospheric Microbial Community.

Pang Z, Dong F, Liu Q, Lin W, Hu C, Yuan Z Front Microbiol. 2021; 12:627569.

PMID: 33746921 PMC: 7973049. DOI: 10.3389/fmicb.2021.627569.

Structural and functional shifts of soil prokaryotic community due to Eucalyptus plantation and rotation phase.

Monteiro D, Fonseca E, Rodrigues R, da Silva J, da Silva E, Balieiro F Sci Rep. 2020; 10(1):9075.

PMID: 32493970 PMC: 7270125. DOI: 10.1038/s41598-020-66004-x.

Acidobacteria Subgroups and Their Metabolic Potential for Carbon Degradation in Sugarcane Soil Amended With Vinasse and Nitrogen Fertilizers.

Chaves M, Silva G, Rossetto R, Edwards R, Tsai S, Navarrete A Front Microbiol. 2019; 10:1680.

PMID: 31417506 PMC: 6682628. DOI: 10.3389/fmicb.2019.01680.

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