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| 10. |  | SCIVITTARO, W. B.; STEINMETZ, S.; GOMES, A. da S.; GONÇALVES, D. R. N.; ROSSI, F. de. Eficiência de uso de nitrogênio pelo arroz irrigado em função da época de adubação. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 5.; REUNIÃO DA CULTURA DO ARROZ IRRIGADO, 27., 2007, Pelotas. Anais... Pelotas: Embrapa Clima Temperado, 2007. v. 1, p. 518-520| Biblioteca(s): Embrapa Clima Temperado. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Florestas. |
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Data corrente: |
15/06/2022 |
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Data da última atualização: |
20/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ETTO, R. M.; JESUS, E. da C.; CRUZ, L. M.; SCHNEIDER, B. S. F.; TOMACHEWSKI, D.; URREA-VALENCIA , S.; GONÇALVES, D. R. P.; GALVÃO, F.; AYUB, R. A.; CURCIO, G. R.; STEFFENS, M. B. R.; GALVÃO, C. W. |
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Afiliação: |
R.M. ETTO, UEPG; EDERSON DA CONCEICAO JESUS, CNPAB; L.M. CRUZ, UNIVERSIDADE DO PARANÁ; B.S.F. SCHNEIDER, UEPG; D. TOMACHEWSKI, UEPG; S. URREA-VALENCIA, UEPG; D.R.P. GONÇALVES, UEPG; F. GALVÃO, UFP; R.A. AYUB, UEPG; GUSTAVO RIBAS CURCIO, CNPF; M. B. R. STEFFENS, UFP; C. W. GALVÃO, UEPG. |
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Título: |
Influence of environmental factors on the tropical peatlands diazotrophic communities from the Southern Brazilian Atlantic Rain Forest. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Letters in Applied Microbiology, v. 74, n. 4, p. 543-554, 2022. |
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DOI: |
https://doi.org/10.1111/lam.13638 |
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Idioma: |
Inglês |
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Conteúdo: |
The tropical peatlands of southern Brazil are essential for the maintenance ofthe Atlantic Rain Forest, one of the 25 hotspots of biodiversity in the world.Although diazotrophic micro-organisms are essential for the maintenance ofthis nitrogen limited ecosystem, so far studies have focused only on micro-organisms involved in the carbon cycle. In this work, peat samples werecollected from three tropical peatland regions during dry and rainy seasonsand their chemical and microbial characteristics were evaluated. Our resultsshowed that the structure of the diazotrophic communities in the Braziliantropical peatlands differs in the evaluated seasons. The abundance of the genusBradyrhizobiumshowed to be affected by rainfall and peat pH. Despite theshifts of the nitrogen-fixing population in the tropical peatland caused byseasonality it showed to be constantly dominated bya-Proteobacteria followedbyCyanobacteria. In addition, more than 50% ofnifHgene sequences have notbeen classified, indicating the necessity for more studies in tropical peatland,since the reduction of N supply in the peatlands stimulates the recalcitrantorganic matter decomposition performed by peatland micro-organisms,influencing the C stock.
This manuscript reports the first ecological study of tropical peat-lands diazotrophic communities from the Brazilian Atlantic Rain Forest, one of the world?s largestbiodiversity hotspots. Based on culturing and culture-independent approaches, our results showed alter-ations in the structure of the diazotrophic communities in different seasons. The genusBradyrhizobiumabundance was affected by rainfall and peat pH. In addition, the great number of unclassifiednitrogen-fixing bacteria indicated the need for additional studies to guide future mitigation actions,since the reduction of N supply in the peatlands stimulates the recalcitrant organic matter decomposi-tion performed by peatland micro-organisms, influencing the C stock. MenosThe tropical peatlands of southern Brazil are essential for the maintenance ofthe Atlantic Rain Forest, one of the 25 hotspots of biodiversity in the world.Although diazotrophic micro-organisms are essential for the maintenance ofthis nitrogen limited ecosystem, so far studies have focused only on micro-organisms involved in the carbon cycle. In this work, peat samples werecollected from three tropical peatland regions during dry and rainy seasonsand their chemical and microbial characteristics were evaluated. Our resultsshowed that the structure of the diazotrophic communities in the Braziliantropical peatlands differs in the evaluated seasons. The abundance of the genusBradyrhizobiumshowed to be affected by rainfall and peat pH. Despite theshifts of the nitrogen-fixing population in the tropical peatland caused byseasonality it showed to be constantly dominated bya-Proteobacteria followedbyCyanobacteria. In addition, more than 50% ofnifHgene sequences have notbeen classified, indicating the necessity for more studies in tropical peatland,since the reduction of N supply in the peatlands stimulates the recalcitrantorganic matter decomposition performed by peatland micro-organisms,influencing the C stock.
This manuscript reports the first ecological study of tropical peat-lands diazotrophic communities from the Brazilian Atlantic Rain Forest, one of the world?s largestbiodiversity hotspots. Based on culturing and culture-independent approaches, our results showed alter... Mostrar Tudo |
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Palavras-Chave: |
Biological nitrogen fixation; Community level; Mata Atlântica; Ombrotrophic peatland; Substrate utilization. |
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Thesagro: |
Carbono; Fixação de Nitrogênio; Turfa. |
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Thesaurus NAL: |
Microbial ecology. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 03123naa a2200373 a 4500
001 2144130
005 2022-06-20
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/lam.13638$2DOI
100 1 $aETTO, R. M.
245 $aInfluence of environmental factors on the tropical peatlands diazotrophic communities from the Southern Brazilian Atlantic Rain Forest.$h[electronic resource]
260 $c2022
520 $aThe tropical peatlands of southern Brazil are essential for the maintenance ofthe Atlantic Rain Forest, one of the 25 hotspots of biodiversity in the world.Although diazotrophic micro-organisms are essential for the maintenance ofthis nitrogen limited ecosystem, so far studies have focused only on micro-organisms involved in the carbon cycle. In this work, peat samples werecollected from three tropical peatland regions during dry and rainy seasonsand their chemical and microbial characteristics were evaluated. Our resultsshowed that the structure of the diazotrophic communities in the Braziliantropical peatlands differs in the evaluated seasons. The abundance of the genusBradyrhizobiumshowed to be affected by rainfall and peat pH. Despite theshifts of the nitrogen-fixing population in the tropical peatland caused byseasonality it showed to be constantly dominated bya-Proteobacteria followedbyCyanobacteria. In addition, more than 50% ofnifHgene sequences have notbeen classified, indicating the necessity for more studies in tropical peatland,since the reduction of N supply in the peatlands stimulates the recalcitrantorganic matter decomposition performed by peatland micro-organisms,influencing the C stock. This manuscript reports the first ecological study of tropical peat-lands diazotrophic communities from the Brazilian Atlantic Rain Forest, one of the world?s largestbiodiversity hotspots. Based on culturing and culture-independent approaches, our results showed alter-ations in the structure of the diazotrophic communities in different seasons. The genusBradyrhizobiumabundance was affected by rainfall and peat pH. In addition, the great number of unclassifiednitrogen-fixing bacteria indicated the need for additional studies to guide future mitigation actions,since the reduction of N supply in the peatlands stimulates the recalcitrant organic matter decomposi-tion performed by peatland micro-organisms, influencing the C stock.
650 $aMicrobial ecology
650 $aCarbono
650 $aFixação de Nitrogênio
650 $aTurfa
653 $aBiological nitrogen fixation
653 $aCommunity level
653 $aMata Atlântica
653 $aOmbrotrophic peatland
653 $aSubstrate utilization
700 1 $aJESUS, E. da C.
700 1 $aCRUZ, L. M.
700 1 $aSCHNEIDER, B. S. F.
700 1 $aTOMACHEWSKI, D.
700 1 $aURREA-VALENCIA , S.
700 1 $aGONÇALVES, D. R. P.
700 1 $aGALVÃO, F.
700 1 $aAYUB, R. A.
700 1 $aCURCIO, G. R.
700 1 $aSTEFFENS, M. B. R.
700 1 $aGALVÃO, C. W.
773 $tLetters in Applied Microbiology$gv. 74, n. 4, p. 543-554, 2022.
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