Taxonomic and nitrogen-cycling microbial community functional profiles of sugarcane and adjacent forest soils in Southeast Brazil

Eliamar Aparecida Nascimbém Pedrinho; Acacio Aparecido Navarrete; Luciano Takeshi KishiCamila Cesário FernandesVictoria Romancini ToledoRita de Cassia Félix AlvarezElisângela de Souza LoureiroLeandro Nascimento LemosSiu Mui TsaiEliana Gertrudes de Macedo Lemos

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Taxonomic and nitrogen-cycling microbial community functional profiles of sugarcane and adjacent forest soils in Southeast Brazil

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Nowadays, due to the expansion of agricultural borders, it is highly desirable to increase the sustained productivity of sugarcane cultivars using the knowledge of soil microbial communities. In this study, twelve shotgun metagenomic datasets based on genomic DNA from soil were analyzed using the Metagenomics Rapid Annotation using Subsystem Technology (MG-RAST) and Statistical Analysis of Metagenomic Profiles (STAMP) to assess differential responses for the total soil bacterial community composition and nitrogen-cycling microbial community functional potential in soils from sugarcane field with pre-harvest burning and adjacent forest in dry and wet seasons in Southeast Brazil. The soil bacterial community revealed higher abundance for Actinobacteria in forest soil than sugarcane soil in dry and wet seasons, and an opposite pattern for Proteobacteria and Planctomycetes in these soils in both seasons. The results obtained in this study based on the KEEG map suggest that the forest soil has a higher nitrogen-cycling microbial community functional potential compared to the sugarcane soil, independently of the season. The gene sequences associated with carbohydrate metabolism were the most frequent in all soil metagenomes. Taken together, the results confirm previous findings regarding the effects of forest conversion to sugarcane production area, providing new insights regarding to this conversion through the prism of the seasonality and pre-harvesting method on microbially mediated nitrogen cycle in sugarcane production fields.

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《MOJ Ecology & Environmental Sciences》 |2021年第4期|119-125|共7页
作者
Eliamar Aparecida Nascimbém Pedrinho; Acacio Aparecido Navarrete; Luciano Takeshi KishiCamila Cesário FernandesVictoria Romancini ToledoRita de Cassia Félix AlvarezElisângela de Souza LoureiroLeandro Nascimento LemosSiu Mui TsaiEliana Gertrudes de Macedo Lemos;
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作者单位

São Paulo State University, Technology Department;

Federal University of Mato Grosso do Sul;

National Laboratory of Scientific ComputingCenter for Nuclear Energy in Agriculture, University of São Paulo;

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正文语种英语
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soil bacterial community composition; shotgun metagenomic sequencing; nitrogen cycle; seasonality; sustainability;

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Taxonomic and nitrogen-cycling microbial community functional profiles of sugarcane and adjacent forest soils in Southeast Brazil

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