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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
12/06/2018 |
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Data da última atualização: |
15/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BARBOSA, D. D.; BRITO, S. L.; FERNANDES, P. D.; FERNANDES JUNIOR, P. I.; LIMA, L. M. de. |
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Afiliação: |
D. D. BARBOSA, Pós-Graduação em Ciências Agrárias, Universidade Estadual da Paraíba, Campina Grande, PB; S. L. BRITO, Pós-Graduação em Ciências Agrárias, Universidade Estadual da Paraíba, Campina Grande, PB; P. D. FERNANDES, Universidade Estadual da Paraíba, Campina Grande, PB; PAULO IVAN FERNANDES JUNIOR, CPATSA; LIZIANE MARIA DE LIMA, CNPA. |
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Título: |
Can Bradyrhizobium strains inoculation reduce water deficit effects on peanuts? |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
World Journal of Microbiology and Biotechnology, v. 34, n. 7, 87 jul. 2018. |
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DOI: |
10.1007/s11274-018-2474-z |
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Idioma: |
Inglês |
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Conteúdo: |
Drought is one of the environmental factors that most affects peanut cultivation in semi-arid regions, resulting in economic losses to growers. However, growth promoting bacteria are able to reduce water deficit damage in some plant species. In this context, this study aimed to evaluate the interaction of Bradyrhizobium strains reducing water stress effects on peanut genotypes by antioxidant enzymes activities, leaf gas exchanges and vegetative growth, as well as to determine the taxonomic positioning of strain ESA 123. The 16S rRNA gene of ESA 123 was amplified by PCR and sequenced by dideoxy Sanger sequencing method. An experiment was performed in greenhouse with three peanut genotypes (BRS Havana, CNPA 76 AM and 2012-4), two Bradyrhizobium strains (SEMIA 6144 and ESA 123), a mineral source of N and an absolute control (without N) under two water regimes (with and without irrigation). Seeds of peanut were sown and the plants were grown until 30 days after emergence. On the 20th day, the water deficit plants group had their irrigation suspended for 10 days. At in silico analyzes, ESA 123 presented 98.97% similarity with the type strain of B. kavangense. Leaf gas exchange was affected by water deficit; as well as alteration of antioxidant activities and reduction of vegetative growth variables. However, some plants inoculated with SEMIA 6144 and ESA 123 strains presented lower reductions and increment of some evaluated variables, mainly the ones inoculated with the ESA 123 strain, Bradyrhizobium sp. from the semi-arid region of Northeast Brazil. This data suggests beneficial effects of the peanut-Bradyrhizobium interaction in a water stress condition, specially with the ESA 123 strain. MenosDrought is one of the environmental factors that most affects peanut cultivation in semi-arid regions, resulting in economic losses to growers. However, growth promoting bacteria are able to reduce water deficit damage in some plant species. In this context, this study aimed to evaluate the interaction of Bradyrhizobium strains reducing water stress effects on peanut genotypes by antioxidant enzymes activities, leaf gas exchanges and vegetative growth, as well as to determine the taxonomic positioning of strain ESA 123. The 16S rRNA gene of ESA 123 was amplified by PCR and sequenced by dideoxy Sanger sequencing method. An experiment was performed in greenhouse with three peanut genotypes (BRS Havana, CNPA 76 AM and 2012-4), two Bradyrhizobium strains (SEMIA 6144 and ESA 123), a mineral source of N and an absolute control (without N) under two water regimes (with and without irrigation). Seeds of peanut were sown and the plants were grown until 30 days after emergence. On the 20th day, the water deficit plants group had their irrigation suspended for 10 days. At in silico analyzes, ESA 123 presented 98.97% similarity with the type strain of B. kavangense. Leaf gas exchange was affected by water deficit; as well as alteration of antioxidant activities and reduction of vegetative growth variables. However, some plants inoculated with SEMIA 6144 and ESA 123 strains presented lower reductions and increment of some evaluated variables, mainly the ones inoculated with the ESA 123 s... Mostrar Tudo |
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Palavras-Chave: |
Enzimas antioxidantes; Rhizobia; Rizóbio; Tolerância à seca; Trocas gasosas de folhas. |
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Thesagro: |
Amendoim; Inoculante. |
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Thesaurus Nal: |
Bradyrhizobium; Drought tolerance; Peanuts; Rhodobium (Rhizobiaceae). |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/178486/1/Paulo-Ivan.pdf
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Marc: |
LEADER 02643naa a2200313 a 4500
001 2092415
005 2019-01-15
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1007/s11274-018-2474-z$2DOI
100 1 $aBARBOSA, D. D.
245 $aCan Bradyrhizobium strains inoculation reduce water deficit effects on peanuts?$h[electronic resource]
260 $c2018
520 $aDrought is one of the environmental factors that most affects peanut cultivation in semi-arid regions, resulting in economic losses to growers. However, growth promoting bacteria are able to reduce water deficit damage in some plant species. In this context, this study aimed to evaluate the interaction of Bradyrhizobium strains reducing water stress effects on peanut genotypes by antioxidant enzymes activities, leaf gas exchanges and vegetative growth, as well as to determine the taxonomic positioning of strain ESA 123. The 16S rRNA gene of ESA 123 was amplified by PCR and sequenced by dideoxy Sanger sequencing method. An experiment was performed in greenhouse with three peanut genotypes (BRS Havana, CNPA 76 AM and 2012-4), two Bradyrhizobium strains (SEMIA 6144 and ESA 123), a mineral source of N and an absolute control (without N) under two water regimes (with and without irrigation). Seeds of peanut were sown and the plants were grown until 30 days after emergence. On the 20th day, the water deficit plants group had their irrigation suspended for 10 days. At in silico analyzes, ESA 123 presented 98.97% similarity with the type strain of B. kavangense. Leaf gas exchange was affected by water deficit; as well as alteration of antioxidant activities and reduction of vegetative growth variables. However, some plants inoculated with SEMIA 6144 and ESA 123 strains presented lower reductions and increment of some evaluated variables, mainly the ones inoculated with the ESA 123 strain, Bradyrhizobium sp. from the semi-arid region of Northeast Brazil. This data suggests beneficial effects of the peanut-Bradyrhizobium interaction in a water stress condition, specially with the ESA 123 strain.
650 $aBradyrhizobium
650 $aDrought tolerance
650 $aPeanuts
650 $aRhodobium (Rhizobiaceae)
650 $aAmendoim
650 $aInoculante
653 $aEnzimas antioxidantes
653 $aRhizobia
653 $aRizóbio
653 $aTolerância à seca
653 $aTrocas gasosas de folhas
700 1 $aBRITO, S. L.
700 1 $aFERNANDES, P. D.
700 1 $aFERNANDES JUNIOR, P. I.
700 1 $aLIMA, L. M. de
773 $tWorld Journal of Microbiology and Biotechnology$gv. 34, n. 7, 87 jul. 2018.
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Embrapa Semiárido (CPATSA) |
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