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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Semiárido. |
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Data corrente: |
15/04/2019 |
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Data da última atualização: |
02/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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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. |
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Título: |
Land use and seasonal effects on the soil microbiome of a Brazilian dry forest. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Frontiers in Microbiology, v. 10, abr. 2019. |
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DOI: |
10.3389/fmicb.2019.00648 |
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Idioma: |
Inglês |
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Notas: |
Article 648. |
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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 |
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Palavras-Chave: |
Bioma Caatinga; Comunidades microbianas do solo; Floresta seca; Floresta seca tropical; Metagenômica; Sazonalidade. |
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Thesagro: |
Caatinga; Ecossistema; Floresta; Floresta Nativa; Floresta Tropical; Solo; Uso da Terra. |
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Thesaurus Nal: |
Dry forests. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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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| Registros recuperados : 36 | |
| 16. |  | LIEBEREI, R.; GASPAROTTO, L.; PREISINGER, H.; FELDMANN, F.; IDCZAK, E. Recultivation of abandoned monoculture areas in Amazonia. In: SHIFT-WORKSHOP, 1., 1993, Belém, PA. Summaries of lectures and posters. S.l.: GKSS, 1993. p. 123-132.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 17. | | LIEBEREI, R.; FELDMANN, F.; PREISINGER, H.; GASPAROTTO, L. Recultivation of degraded, fallow lying monocultural areas with equilibrated polycultures under special respect to soil microbiological factors. In: SYMPOSIUM TROPISCHE NUTZPFLANZEN - BIOLOGIE, OKOLOGIE, OKONOMIE, 1993, Hamburg. Abstracts... Hamburg: Universitat, 1993. p. 81.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 20. | | VOB, K.; GASPAROTTO, L.; LIEBEREI, R.; FELDMANN, F. Root distribution of four tropical useful plants after six months of cultivation on degraded sites in Amazonia. In: SYMPOSIUM TROPISCHE NUTZPFLANZEN: BIOLOGIE, OKOLOGIE, OKONOMIE, 2., 1997, Hamburg. Abstracts der Vortrage und Poster... Hamburg: University, 1997. p. 65.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| Registros recuperados : 36 | |
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