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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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| 17. |  | SILVA, K. J. D. e. Panorama do melhoramento do feijão-caupi no Brasil. Cultivar. Disponível em: Acesso em: 01 dez. 2008. Disponível também em:
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http://www.zoonews.com.br/noticiax.php?idnoticia=152775| Tipo: Artigo de Divulgação na Mídia |
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