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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
09/05/2023 |
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Data da última atualização: |
01/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SENABIO, J. A.; PEREIRA, F. de C.; PIETRO-SOUZA, W.; SOUSA, T. F.; SILVA, G. F. da; SOARES, M. A. |
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Afiliação: |
JAQUELINE ALVES SENABIO, UNIVERSIDADE FEDERAL DE MATO GROSSO; FELIPE DE CAMPOS PEREIRA, UNIVERSIDADE FEDERAL DE MATO GROSSO; WILLIAM PIETRO-SOUZA, UNIVERSIDADE FEDERAL DE MATO GROSSO; THIAGO FERNANDES SOUSA, UNIVERSIDADE DE VIÇOSA; GILVAN FERREIRA DA SILVA, CPAA; MARCOS ANTÔNIO SOARES, UNIVERSIDADE FEDERAL DE MATO GROSSO. |
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Título: |
Enhanced mercury phytoremediation by Pseudomonodictys pantanalensis sp. nov. A73 and Westerdykella aquatica P71. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, v. 54, n. 2, p. 949-964, jun. 2023. |
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DOI: |
https://doi.org/10.1007/s42770-023-00924-4 |
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Idioma: |
Inglês |
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Conteúdo: |
Mercury is a non-essential and toxic metal that induces toxicity in most organisms, but endophytic fungi can develop survival strategies to tolerate and respond to metal contaminants and other environmental stressors. The present study demonstrated the potential of mercury-resistant endophytic fungi in phytoremediation. We examined the functional traits involved in plant growth promotion, phytotoxicity mitigation, and mercury phytoremediation in seven fungi strains. The endophytic isolates synthesized the phytohormone indole-3-acetic acid, secreted siderophores, and solubilized phosphate in vitro. Inoculation of maize (Zea mays) plants with endophytes increased plant growth attributes by up to 76.25%. The endophytic fungi stimulated mercury uptake from the substrate and promoted its accumulation in plant tissues (t test, p<0.05), preferentially in the roots, which thereby mitigated the impacts of metal phytotoxicity. Westerdykella aquatica P71 and the newly identifed species Pseudomonodictys pantanalensis nov. A73 were the isolates that presented the best phytoremediation potential. Assembling and annotation of P. pantanalensis A73 and W. aquatica P71 genomes resulted in genome sizes of 45.7 and 31.8 Mb that encoded 17,774 and 11,240 protein-coding genes, respectively. Some clusters of genes detected were involved in the synthesis of secondary metabolites such as dimethylcoprogen (NRPS) and melanin (T1PKS), which are metal chelators with antioxidant activity; mercury resistance (merA and merR1); oxidative stress (PRX1 and TRX1); and plant growth promotion (trpS and iscU). Therefore, both fungi species are potential tools for the bioremediation of mercury-contaminated soils due to their ability to reduce phytotoxicity and assist phytoremediation. MenosMercury is a non-essential and toxic metal that induces toxicity in most organisms, but endophytic fungi can develop survival strategies to tolerate and respond to metal contaminants and other environmental stressors. The present study demonstrated the potential of mercury-resistant endophytic fungi in phytoremediation. We examined the functional traits involved in plant growth promotion, phytotoxicity mitigation, and mercury phytoremediation in seven fungi strains. The endophytic isolates synthesized the phytohormone indole-3-acetic acid, secreted siderophores, and solubilized phosphate in vitro. Inoculation of maize (Zea mays) plants with endophytes increased plant growth attributes by up to 76.25%. The endophytic fungi stimulated mercury uptake from the substrate and promoted its accumulation in plant tissues (t test, p<0.05), preferentially in the roots, which thereby mitigated the impacts of metal phytotoxicity. Westerdykella aquatica P71 and the newly identifed species Pseudomonodictys pantanalensis nov. A73 were the isolates that presented the best phytoremediation potential. Assembling and annotation of P. pantanalensis A73 and W. aquatica P71 genomes resulted in genome sizes of 45.7 and 31.8 Mb that encoded 17,774 and 11,240 protein-coding genes, respectively. Some clusters of genes detected were involved in the synthesis of secondary metabolites such as dimethylcoprogen (NRPS) and melanin (T1PKS), which are metal chelators with antioxidant activity; mercury resista... Mostrar Tudo |
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Palavras-Chave: |
Genome draft. |
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Thesagro: |
Milho; Zea Mays. |
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Thesaurus Nal: |
Bioremediation; Endophytes; Secondary metabolites. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/254229/1/s42770-023-00924-4.pdf
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Marc: |
LEADER 02601naa a2200265 a 4500
001 2153593
005 2023-09-01
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s42770-023-00924-4$2DOI
100 1 $aSENABIO, J. A.
245 $aEnhanced mercury phytoremediation by Pseudomonodictys pantanalensis sp. nov. A73 and Westerdykella aquatica P71.$h[electronic resource]
260 $c2023
520 $aMercury is a non-essential and toxic metal that induces toxicity in most organisms, but endophytic fungi can develop survival strategies to tolerate and respond to metal contaminants and other environmental stressors. The present study demonstrated the potential of mercury-resistant endophytic fungi in phytoremediation. We examined the functional traits involved in plant growth promotion, phytotoxicity mitigation, and mercury phytoremediation in seven fungi strains. The endophytic isolates synthesized the phytohormone indole-3-acetic acid, secreted siderophores, and solubilized phosphate in vitro. Inoculation of maize (Zea mays) plants with endophytes increased plant growth attributes by up to 76.25%. The endophytic fungi stimulated mercury uptake from the substrate and promoted its accumulation in plant tissues (t test, p<0.05), preferentially in the roots, which thereby mitigated the impacts of metal phytotoxicity. Westerdykella aquatica P71 and the newly identifed species Pseudomonodictys pantanalensis nov. A73 were the isolates that presented the best phytoremediation potential. Assembling and annotation of P. pantanalensis A73 and W. aquatica P71 genomes resulted in genome sizes of 45.7 and 31.8 Mb that encoded 17,774 and 11,240 protein-coding genes, respectively. Some clusters of genes detected were involved in the synthesis of secondary metabolites such as dimethylcoprogen (NRPS) and melanin (T1PKS), which are metal chelators with antioxidant activity; mercury resistance (merA and merR1); oxidative stress (PRX1 and TRX1); and plant growth promotion (trpS and iscU). Therefore, both fungi species are potential tools for the bioremediation of mercury-contaminated soils due to their ability to reduce phytotoxicity and assist phytoremediation.
650 $aBioremediation
650 $aEndophytes
650 $aSecondary metabolites
650 $aMilho
650 $aZea Mays
653 $aGenome draft
700 1 $aPEREIRA, F. de C.
700 1 $aPIETRO-SOUZA, W.
700 1 $aSOUSA, T. F.
700 1 $aSILVA, G. F. da
700 1 $aSOARES, M. A.
773 $tBrazilian Journal of Microbiology$gv. 54, n. 2, p. 949-964, jun. 2023.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Algodão; Embrapa Semiárido. |
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Data corrente: |
05/09/2022 |
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Data da última atualização: |
04/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
JOVINO, R. S.; SILVA, T. R. da; RODRIGUES, R. T.; CARVALHO, J. R. de S.; CUNHA, J. B. de A.; LIMA, L. M. de; SANTOS, R. C. dos; SANTOS, C. E. de R. e S.; RIBEIRO, P. R. de A.; FREITAS, A. D. S. de; MARTINS, L. M. V.; FERNANDES JUNIOR, P. I. |
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Afiliação: |
RAPHAEL SILVA JOVINO, Universidade Estadual da Paraíba; THAÍSE ROSA DA SILVA, UNIVASF; RUTH TEREZINHA RODRIGUES, UNIVASF; JACKSON RAFAEL DE SÁ CARVALHO, Universidade Estadual de Feira de Santana; JUSSARA BARBOZA DE ALENCAR CUNHA, UNEB/DTCS; LIZIANE MARIA DE LIMA, CNPA; ROSEANE CAVALCANTI DOS SANTOS, CNPA; CAROLINA ETIENNE DE ROSÁLIA E SILVA SANTOS, UFRPE; PAULA ROSE DE ALMEIDA RIBEIRO, Bolsista CNPq; ANA DOLORES SANTIAGO DE FREITAS, UFRPE; LINDETE MÍRIA VIEIRA MARTINS, UNEB/DTCS; PAULO IVAN FERNANDES JUNIOR, CPATSA. |
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Título: |
Elite Bradyrhizobium strains boost biological nitrogen fixation and peanut yield in tropical drylands. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, v. 53, p. 1623-1632, 2022. |
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DOI: |
https://doi.org/10.1007/s42770-022-00792-4 |
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Idioma: |
Inglês |
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Conteúdo: |
Peanut (Arachis hypogaea L.) is an important crop for the family-based systems in the tropics, mainly in Brazil. In the Brazilian drylands, peanuts are cropped in low technological systems, and cheap and efficient technologies are needed to improve crop yield and sustainability. Despite this importance, few data are available on selecting efficient peanut rhizobia in experiments under different edaphoclimatic conditions. This work evaluated the agronomic efficiency and the biological nitrogen fixation (BNF) by two elite Bradyrhizobium strains under four different fields in the Brazilian semiarid region. We compared a new efficient strain Bradyrhizobium sp. ESA 123 with the reference strain B. elkanii SEMIA 6144, currently used in peanut rhizobial inoculants in Brazil. Besides the inoculated treatments, two uninoculated controls were assessed (with and without 80 kg ha−1 of N-urea). The BNF was estimated by the δ15N approach in three out of four field assays. BNF contribution was improved by inoculation of both Bradyrhizobium strains, ranging from 42 to 51% in Petrolina and 43 to 60% in Nossa Senhora da Glória. Peanuts? yields benefited from the inoculation of both strains and N fertilization in all four assays. Nevertheless, the results showed the efficiency of both strains under different edaphoclimatic conditions, indicating the native strain ESA 123 as a potential bacterium for recommendation as inoculants for peanuts in Brazil, mainly in drylands. |
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Palavras-Chave: |
Elite Bradyrhizobium; FBN; Inoculação de sementes; Rhizobia; Seleção de cepas. |
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Thesagro: |
Amendoim; Arachis Hypogaea; Fixação de Nitrogênio; Inoculante. |
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Thesaurus NAL: |
Arachis hypogaea subsp. hypogaea; Peanuts; Rhizobiaceae; Seed inoculation. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02772naa a2200421 a 4500
001 2151488
005 2023-02-04
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s42770-022-00792-4$2DOI
100 1 $aJOVINO, R. S.
245 $aElite Bradyrhizobium strains boost biological nitrogen fixation and peanut yield in tropical drylands.$h[electronic resource]
260 $c2022
520 $aPeanut (Arachis hypogaea L.) is an important crop for the family-based systems in the tropics, mainly in Brazil. In the Brazilian drylands, peanuts are cropped in low technological systems, and cheap and efficient technologies are needed to improve crop yield and sustainability. Despite this importance, few data are available on selecting efficient peanut rhizobia in experiments under different edaphoclimatic conditions. This work evaluated the agronomic efficiency and the biological nitrogen fixation (BNF) by two elite Bradyrhizobium strains under four different fields in the Brazilian semiarid region. We compared a new efficient strain Bradyrhizobium sp. ESA 123 with the reference strain B. elkanii SEMIA 6144, currently used in peanut rhizobial inoculants in Brazil. Besides the inoculated treatments, two uninoculated controls were assessed (with and without 80 kg ha−1 of N-urea). The BNF was estimated by the δ15N approach in three out of four field assays. BNF contribution was improved by inoculation of both Bradyrhizobium strains, ranging from 42 to 51% in Petrolina and 43 to 60% in Nossa Senhora da Glória. Peanuts? yields benefited from the inoculation of both strains and N fertilization in all four assays. Nevertheless, the results showed the efficiency of both strains under different edaphoclimatic conditions, indicating the native strain ESA 123 as a potential bacterium for recommendation as inoculants for peanuts in Brazil, mainly in drylands.
650 $aArachis hypogaea subsp. hypogaea
650 $aPeanuts
650 $aRhizobiaceae
650 $aSeed inoculation
650 $aAmendoim
650 $aArachis Hypogaea
650 $aFixação de Nitrogênio
650 $aInoculante
653 $aElite Bradyrhizobium
653 $aFBN
653 $aInoculação de sementes
653 $aRhizobia
653 $aSeleção de cepas
700 1 $aSILVA, T. R. da
700 1 $aRODRIGUES, R. T.
700 1 $aCARVALHO, J. R. de S.
700 1 $aCUNHA, J. B. de A.
700 1 $aLIMA, L. M. de
700 1 $aSANTOS, R. C. dos
700 1 $aSANTOS, C. E. de R. e S.
700 1 $aRIBEIRO, P. R. de A.
700 1 $aFREITAS, A. D. S. de
700 1 $aMARTINS, L. M. V.
700 1 $aFERNANDES JUNIOR, P. I.
773 $tBrazilian Journal of Microbiology$gv. 53, p. 1623-1632, 2022.
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Registro original: |
Embrapa Algodão (CNPA) |
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