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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
30/10/2018 |
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Data da última atualização: |
30/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BONONI, L.; TAKETANI, R. G.; SOUZA, D. T.; MOITINHO, M. A.; KAVAMURA, V. N.; MELO, I. S. de. |
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Afiliação: |
LAURA BONONI, ESALQ-USP; RODRIGO GOUVEA TAKETANI; DANILO TOSTA SOUZA, ESALQ-USP; MARTA ALVES MOUTINHO, ESALQ-USP; VANESSA NESSNER KAVAMURA; ITAMAR SOARES DE MELO, CNPMA. |
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Título: |
Higher phylogenetic diversity prevents loss of functional diversity caused by successive drying and rewetting cycles. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Antonie van Leeuwenhoek, v. 111, n. 7, p. 1033-1045, 2018. |
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DOI: |
https://doi.org/10.1007/s10482-017-1003-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Microbial communities regulate nutrient cycling in soil, thus the impact of climate change on the structure and function of these communities can cause an imbalance of nutrients in the environment. Structural and functional changes of soil bacterial communities in two contrasting biomes in Brazil, the Atlantic Forest and the Tropical Dry Forest (Caatinga), were studied by simulating, in microcosms, rainfall and drought events. Soil samples were collected in three Brazilian states: Bahia, Pernambuco and São Paulo, in a total of four sampling sites. Analysis of 16S rRNA amplicon libraries revealed changes in microbial communities after three drying-rewetting cycles (60-30% water holding capacity). Alpha diversity indexes were obtained for bacterial communities, as well as the functional diversity index (Shannon) based on the activity of the following enzymes: acid and alkaline phosphatase, arylsulfatase, dehydrogenase, cellulase, amylase, urease and phytase. In general, the soils of Caatinga showed a decrease in the diversity indexes studied, conversely, however, the soils of Atlantic Forest were found to be more resistant during the drying-rewetting cycles. Functional diversity was significantly different for the two biomes, with a decrease in Caatinga soils, while Atlantic Forest samples demonstrated a greater stability of enzymatic activity. Further, the Atlantic Forest samples showed more resistance when compared to samples from Caatinga. The results found in this study have confirmed the hypothesis that biomes, independent of climate, when subjected to successive events of drought and rewetting exhibit structural and metabolic changes. MenosAbstract: Microbial communities regulate nutrient cycling in soil, thus the impact of climate change on the structure and function of these communities can cause an imbalance of nutrients in the environment. Structural and functional changes of soil bacterial communities in two contrasting biomes in Brazil, the Atlantic Forest and the Tropical Dry Forest (Caatinga), were studied by simulating, in microcosms, rainfall and drought events. Soil samples were collected in three Brazilian states: Bahia, Pernambuco and São Paulo, in a total of four sampling sites. Analysis of 16S rRNA amplicon libraries revealed changes in microbial communities after three drying-rewetting cycles (60-30% water holding capacity). Alpha diversity indexes were obtained for bacterial communities, as well as the functional diversity index (Shannon) based on the activity of the following enzymes: acid and alkaline phosphatase, arylsulfatase, dehydrogenase, cellulase, amylase, urease and phytase. In general, the soils of Caatinga showed a decrease in the diversity indexes studied, conversely, however, the soils of Atlantic Forest were found to be more resistant during the drying-rewetting cycles. Functional diversity was significantly different for the two biomes, with a decrease in Caatinga soils, while Atlantic Forest samples demonstrated a greater stability of enzymatic activity. Further, the Atlantic Forest samples showed more resistance when compared to samples from Caatinga. The results found in thi... Mostrar Tudo |
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Thesagro: |
Bactéria; Biologia do Solo; Fauna Edáfica; Mudança Climática. |
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Thesaurus Nal: |
Actinobacteria; Bacterial communities; Biodiversity; Climate change; Proteobacteria; Semiarid zones; Soil bacteria. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02662naa a2200325 a 4500
001 2098464
005 2018-10-30
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10482-017-1003-7$2DOI
100 1 $aBONONI, L.
245 $aHigher phylogenetic diversity prevents loss of functional diversity caused by successive drying and rewetting cycles.$h[electronic resource]
260 $c2018
520 $aAbstract: Microbial communities regulate nutrient cycling in soil, thus the impact of climate change on the structure and function of these communities can cause an imbalance of nutrients in the environment. Structural and functional changes of soil bacterial communities in two contrasting biomes in Brazil, the Atlantic Forest and the Tropical Dry Forest (Caatinga), were studied by simulating, in microcosms, rainfall and drought events. Soil samples were collected in three Brazilian states: Bahia, Pernambuco and São Paulo, in a total of four sampling sites. Analysis of 16S rRNA amplicon libraries revealed changes in microbial communities after three drying-rewetting cycles (60-30% water holding capacity). Alpha diversity indexes were obtained for bacterial communities, as well as the functional diversity index (Shannon) based on the activity of the following enzymes: acid and alkaline phosphatase, arylsulfatase, dehydrogenase, cellulase, amylase, urease and phytase. In general, the soils of Caatinga showed a decrease in the diversity indexes studied, conversely, however, the soils of Atlantic Forest were found to be more resistant during the drying-rewetting cycles. Functional diversity was significantly different for the two biomes, with a decrease in Caatinga soils, while Atlantic Forest samples demonstrated a greater stability of enzymatic activity. Further, the Atlantic Forest samples showed more resistance when compared to samples from Caatinga. The results found in this study have confirmed the hypothesis that biomes, independent of climate, when subjected to successive events of drought and rewetting exhibit structural and metabolic changes.
650 $aActinobacteria
650 $aBacterial communities
650 $aBiodiversity
650 $aClimate change
650 $aProteobacteria
650 $aSemiarid zones
650 $aSoil bacteria
650 $aBactéria
650 $aBiologia do Solo
650 $aFauna Edáfica
650 $aMudança Climática
700 1 $aTAKETANI, R. G.
700 1 $aSOUZA, D. T.
700 1 $aMOITINHO, M. A.
700 1 $aKAVAMURA, V. N.
700 1 $aMELO, I. S. de
773 $tAntonie van Leeuwenhoek$gv. 111, n. 7, p. 1033-1045, 2018.
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| 1. |  | SIQUEIRA, D. P.; ESTEVES, B. dos S.; LOUSADA, L. de L.; SOUSA, E. F. de; MAECIANO, C. R. Coeficientes de cultivo da mamoneira (RICINUS COMMUNIS L.) irrigada em Campos dos Goytacazes, RJ. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 232| Tipo: Resumo em Anais de Congresso |
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