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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Semiárido. |
Data corrente: |
15/04/2019 |
Data da última atualização: |
02/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LACERDA JÚNIOR, G. V.; NORONHA, M. F.; CABRAL, L.; DELFORNO, T. P.; SOUSA, S. T. P. de; FERNANDES JUNIOR, P. I.; MELO, I. S.; OLIVEIRA. V. M. |
Afiliação: |
GILENO V. LACERDA JÚNIOR; MELLINE F. NORONHA; LUCÉLIA CABRAL; TIAGO P. DELFORNO; SANDERSON TARCISO PEREIRA DE SOUSA; PAULO IVAN FERNANDES JUNIOR, CPATSA; ITAMAR S. MELO; VALÉRIA M. OLIVEIRA. |
Título: |
Land use and seasonal effects on the soil microbiome of a Brazilian dry forest. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Frontiers in Microbiology, v. 10, abr. 2019. |
DOI: |
10.3389/fmicb.2019.00648 |
Idioma: |
Inglês |
Notas: |
Article 648. |
Conteúdo: |
Drylands occupy approximately 41% of the Earth?s terrestrial surface. Climate change and land use practices are expected to affect biogeochemical cycling by the soil microbiome in these ecosystems. Understanding how soil microbial community might respond to these drivers is extremely important to mitigate the processes of land degradation and desertification. The Caatinga, an exclusively Brazilian biome composed of an extensive seasonal tropical dry forest, is exposed to variable spatiotemporal rainfall patterns as well as strong human-driven pressures. Herein, an integrated analysis of shotgun metagenomics approach coupled to meteorological data was employed to unravel the impact of seasonality and land use change on soil microbiome from preserved and agriculture-affected experimental fields in Caatinga drylands. Multivariate analysis suggested that microbial communities of preserved soils under seasonal changes were shaped primarily by water deficit, with a strong increase of Actinobacteria and Proteobacteria members in the dry and rainy seasons, respectively. In contrast, nutrient availability notably played a critical role in driving the microbial community in agriculture-affected soils. The strong enrichment of bacterial genera belonging to the poorly-known phylum Acidobacteria (?Candidatus Solibacter? and ?Candidatus Koribacter?) in soils from dry season affected by ferti-irrigation practices presupposes a contrasting copiotrophic lifestyle and ecological role in mitigating the impact of chemical fertilization. Functional analyses identify overrepresented genes related to osmotic stress response (synthesis of osmoprotectant compounds, accumulation of potassium ions) and preferential carbon and nitrogen utilization when comparing the microbiome of preserved soils under seasonal changes, reflecting differences in the genetic potential for nutrient cycling and C acquisition in the environment. However, the prevalence of nitrosative stress and denitrification functions in irrigation/fertilization-affected soils of the dry season clearly suggest that nutrient input and disruption of natural water regime may impact biogeochemical cycles linked to the microbial processes, with potential impacts on the ecosystem functionality. These findings help to better understand how natural seasonality and agricultural management differentially affect soil microbial ecology from dry forests, providing support for the development of more sustainable land management in dryland ecosystems. MenosDrylands occupy approximately 41% of the Earth?s terrestrial surface. Climate change and land use practices are expected to affect biogeochemical cycling by the soil microbiome in these ecosystems. Understanding how soil microbial community might respond to these drivers is extremely important to mitigate the processes of land degradation and desertification. The Caatinga, an exclusively Brazilian biome composed of an extensive seasonal tropical dry forest, is exposed to variable spatiotemporal rainfall patterns as well as strong human-driven pressures. Herein, an integrated analysis of shotgun metagenomics approach coupled to meteorological data was employed to unravel the impact of seasonality and land use change on soil microbiome from preserved and agriculture-affected experimental fields in Caatinga drylands. Multivariate analysis suggested that microbial communities of preserved soils under seasonal changes were shaped primarily by water deficit, with a strong increase of Actinobacteria and Proteobacteria members in the dry and rainy seasons, respectively. In contrast, nutrient availability notably played a critical role in driving the microbial community in agriculture-affected soils. The strong enrichment of bacterial genera belonging to the poorly-known phylum Acidobacteria (?Candidatus Solibacter? and ?Candidatus Koribacter?) in soils from dry season affected by ferti-irrigation practices presupposes a contrasting copiotrophic lifestyle and ecological role in mitig... Mostrar Tudo |
Palavras-Chave: |
Bioma Caatinga; Comunidades microbianas do solo; Floresta seca; Floresta seca tropical; Metagenômica; Sazonalidade. |
Thesagro: |
Caatinga; Ecossistema; Floresta; Floresta Nativa; Floresta Tropical; Solo; Uso da Terra. |
Thesaurus Nal: |
Dry forests. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195849/1/Paulo-Ivan.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/205773/1/Melo-Land-Use-2019.pdf
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Marc: |
LEADER 03625naa a2200397 a 4500 001 2108220 005 2019-12-02 008 2019 bl uuuu u00u1 u #d 024 7 $a10.3389/fmicb.2019.00648$2DOI 100 1 $aLACERDA JÚNIOR, G. V. 245 $aLand use and seasonal effects on the soil microbiome of a Brazilian dry forest.$h[electronic resource] 260 $c2019 500 $aArticle 648. 520 $aDrylands occupy approximately 41% of the Earth?s terrestrial surface. Climate change and land use practices are expected to affect biogeochemical cycling by the soil microbiome in these ecosystems. Understanding how soil microbial community might respond to these drivers is extremely important to mitigate the processes of land degradation and desertification. The Caatinga, an exclusively Brazilian biome composed of an extensive seasonal tropical dry forest, is exposed to variable spatiotemporal rainfall patterns as well as strong human-driven pressures. Herein, an integrated analysis of shotgun metagenomics approach coupled to meteorological data was employed to unravel the impact of seasonality and land use change on soil microbiome from preserved and agriculture-affected experimental fields in Caatinga drylands. Multivariate analysis suggested that microbial communities of preserved soils under seasonal changes were shaped primarily by water deficit, with a strong increase of Actinobacteria and Proteobacteria members in the dry and rainy seasons, respectively. In contrast, nutrient availability notably played a critical role in driving the microbial community in agriculture-affected soils. The strong enrichment of bacterial genera belonging to the poorly-known phylum Acidobacteria (?Candidatus Solibacter? and ?Candidatus Koribacter?) in soils from dry season affected by ferti-irrigation practices presupposes a contrasting copiotrophic lifestyle and ecological role in mitigating the impact of chemical fertilization. Functional analyses identify overrepresented genes related to osmotic stress response (synthesis of osmoprotectant compounds, accumulation of potassium ions) and preferential carbon and nitrogen utilization when comparing the microbiome of preserved soils under seasonal changes, reflecting differences in the genetic potential for nutrient cycling and C acquisition in the environment. However, the prevalence of nitrosative stress and denitrification functions in irrigation/fertilization-affected soils of the dry season clearly suggest that nutrient input and disruption of natural water regime may impact biogeochemical cycles linked to the microbial processes, with potential impacts on the ecosystem functionality. These findings help to better understand how natural seasonality and agricultural management differentially affect soil microbial ecology from dry forests, providing support for the development of more sustainable land management in dryland ecosystems. 650 $aDry forests 650 $aCaatinga 650 $aEcossistema 650 $aFloresta 650 $aFloresta Nativa 650 $aFloresta Tropical 650 $aSolo 650 $aUso da Terra 653 $aBioma Caatinga 653 $aComunidades microbianas do solo 653 $aFloresta seca 653 $aFloresta seca tropical 653 $aMetagenômica 653 $aSazonalidade 700 1 $aNORONHA, M. F. 700 1 $aCABRAL, L. 700 1 $aDELFORNO, T. P. 700 1 $aSOUSA, S. T. P. de 700 1 $aFERNANDES JUNIOR, P. I. 700 1 $aMELO, I. S. 700 1 $aOLIVEIRA. V. M. 773 $tFrontiers in Microbiology$gv. 10, abr. 2019.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
11/08/2005 |
Data da última atualização: |
22/06/2021 |
Autoria: |
RANDO, E. M.; FERREIRA, R. de P.; RASSINI, J. B.; BOTREL, M. de A.; VILELA, D. |
Afiliação: |
EDUARDO MENEGHEL RANDO; REINALDO DE PAULA FERREIRA, CPPSE; JOAQUIM BARTOLOMEU RASSINI, CPPSE/SÃO CARLOS, SP.; MILTON DE ANDRADE BROTEL, CNPGL/CORONEL PACHECO, MG.; DUARTE VILELA, CNPGL. |
Título: |
Avaliação de cultivares de alfafa na região Norte do Paraná. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 42., 2005, Goiânia. A Produção animal e o foco no agronegócio: anais. Goiânia: SBZ, 2005. |
Descrição Física: |
1 CD-ROM |
Idioma: |
Português |
Palavras-Chave: |
Forrageira leguminosa. |
Thesagro: |
Medicago Sativa. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPPSE/15783/1/PROCIRdePF2005.00076.PDF
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Marc: |
LEADER 00643nam a2200181 a 4500 001 1047138 005 2021-06-22 008 2005 bl uuuu u00u1 u #d 100 1 $aRANDO, E. M. 245 $aAvaliação de cultivares de alfafa na região Norte do Paraná.$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 42., 2005, Goiânia. A Produção animal e o foco no agronegócio: anais. Goiânia: SBZ$c2005 300 $c1 CD-ROM 650 $aMedicago Sativa 653 $aForrageira leguminosa 700 1 $aFERREIRA, R. de P. 700 1 $aRASSINI, J. B. 700 1 $aBOTREL, M. de A. 700 1 $aVILELA, D.
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