| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
22/06/2020 |
|
Data da última atualização: |
11/01/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CAVALCANTI, M. I. P.; NASCIMENTO, R. de C.; RODRIGUES, D. R.; ESCOBAR, I. E. C.; FRAIZ, A. C. R.; SOUZA, A. P. de; FREITAS, A. D. S. de; NOBREGA, R. S. A.; FERNANDES JUNIOR, P. I. |
|
Afiliação: |
Maria Idaline Pessoa Cavalcanti; Rejane de Carvalho Nascimento; Dalila Ribeiro Rodrigues; Indra Elena Costa Escobar; Ana Carla Resende Fraiz; Adailson Pereira de Souza; Ana Dolores Santiago de Freitas; Rafaela Simão Abrahão Nóbrega; PAULO IVAN FERNANDES JUNIOR, CPATSA. |
|
Título: |
Maize growth and yield promoting endophytes isolated into a legume root nodule by a cross-over approach. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Rhizosphere, v. 15, 100211, Sept. 2020. |
|
DOI: |
https://doi.org/10.1016/j.rhisph.2020.100211 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Rhizobia can colonize the roots of grasses in the Brazilian semiarid region; however, studies to isolate these bacteria for growth promotion of maize via unconventional isolation approaches have not been conducted. This study aimed to isolate, characterize (biochemically and molecularly) and assess the potential of cowpea nodulating/maize associated rhizobia for plant growth promotion. Extracts of surface-disinfected maize root were inoculated onto cowpea seeds in axenic conditions. Rhizobia were isolated and classified by sequencing of the 16 S rRNA and nodC genes, and recA and atpD were specifically assayed for Bradyrhizobium. The in vitro ability of rhizobia to produce auxin and siderophores, solubilize calcium phosphate, exhibit antagonism against the growth of the pathogen Fusarium verticillioides, and undergo endophytic colonization were evaluated. The ability of rhizobia to promote the growth of both potted cowpea and maize and to promote the growth and yield of maize under field conditions was also evaluated. Thirteen isolates were obtained, including six Rhizobium, four Agrobacterium, and three Bradyrhizobium isolates, which exhibited high genetic variability and low similarity with the type strains. All bacteria showed at least one plant growth promotion mechanism. Six bacteria stood out regarding the promotion of maize growth, and one bacterium showed the best performance in cowpea. The results of the field assay with maize indicated that Bradyrhizobium sp. ESA 114 and Rhizobium sp. ESA 116 induced the same maize grain yields as those observed in plants inoculated with the commercial strain of Azospirillum brasilense Ab-V5. Maize harbors a community of putative facultative endophytic rhizobia that are genetically diverse and have the potential to be used in inoculant production. MenosRhizobia can colonize the roots of grasses in the Brazilian semiarid region; however, studies to isolate these bacteria for growth promotion of maize via unconventional isolation approaches have not been conducted. This study aimed to isolate, characterize (biochemically and molecularly) and assess the potential of cowpea nodulating/maize associated rhizobia for plant growth promotion. Extracts of surface-disinfected maize root were inoculated onto cowpea seeds in axenic conditions. Rhizobia were isolated and classified by sequencing of the 16 S rRNA and nodC genes, and recA and atpD were specifically assayed for Bradyrhizobium. The in vitro ability of rhizobia to produce auxin and siderophores, solubilize calcium phosphate, exhibit antagonism against the growth of the pathogen Fusarium verticillioides, and undergo endophytic colonization were evaluated. The ability of rhizobia to promote the growth of both potted cowpea and maize and to promote the growth and yield of maize under field conditions was also evaluated. Thirteen isolates were obtained, including six Rhizobium, four Agrobacterium, and three Bradyrhizobium isolates, which exhibited high genetic variability and low similarity with the type strains. All bacteria showed at least one plant growth promotion mechanism. Six bacteria stood out regarding the promotion of maize growth, and one bacterium showed the best performance in cowpea. The results of the field assay with maize indicated that Bradyrhizobium sp. ESA 11... Mostrar Tudo |
|
Palavras-Chave: |
Bactérias promotoras de crescimento; Rizobia endofítica facultativa. |
|
Thesagro: |
Inoculante; Milho; Vigna Unguiculata; Zea Mays. |
|
Thesaurus Nal: |
Rhizobiaceae. |
|
Categoria do assunto: |
E Economia e Indústria Agrícola |
|
Marc: |
LEADER 02800naa a2200313 a 4500
001 2123415
005 2023-01-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.rhisph.2020.100211$2DOI
100 1 $aCAVALCANTI, M. I. P.
245 $aMaize growth and yield promoting endophytes isolated into a legume root nodule by a cross-over approach.$h[electronic resource]
260 $c2020
520 $aRhizobia can colonize the roots of grasses in the Brazilian semiarid region; however, studies to isolate these bacteria for growth promotion of maize via unconventional isolation approaches have not been conducted. This study aimed to isolate, characterize (biochemically and molecularly) and assess the potential of cowpea nodulating/maize associated rhizobia for plant growth promotion. Extracts of surface-disinfected maize root were inoculated onto cowpea seeds in axenic conditions. Rhizobia were isolated and classified by sequencing of the 16 S rRNA and nodC genes, and recA and atpD were specifically assayed for Bradyrhizobium. The in vitro ability of rhizobia to produce auxin and siderophores, solubilize calcium phosphate, exhibit antagonism against the growth of the pathogen Fusarium verticillioides, and undergo endophytic colonization were evaluated. The ability of rhizobia to promote the growth of both potted cowpea and maize and to promote the growth and yield of maize under field conditions was also evaluated. Thirteen isolates were obtained, including six Rhizobium, four Agrobacterium, and three Bradyrhizobium isolates, which exhibited high genetic variability and low similarity with the type strains. All bacteria showed at least one plant growth promotion mechanism. Six bacteria stood out regarding the promotion of maize growth, and one bacterium showed the best performance in cowpea. The results of the field assay with maize indicated that Bradyrhizobium sp. ESA 114 and Rhizobium sp. ESA 116 induced the same maize grain yields as those observed in plants inoculated with the commercial strain of Azospirillum brasilense Ab-V5. Maize harbors a community of putative facultative endophytic rhizobia that are genetically diverse and have the potential to be used in inoculant production.
650 $aRhizobiaceae
650 $aInoculante
650 $aMilho
650 $aVigna Unguiculata
650 $aZea Mays
653 $aBactérias promotoras de crescimento
653 $aRizobia endofítica facultativa
700 1 $aNASCIMENTO, R. de C.
700 1 $aRODRIGUES, D. R.
700 1 $aESCOBAR, I. E. C.
700 1 $aFRAIZ, A. C. R.
700 1 $aSOUZA, A. P. de
700 1 $aFREITAS, A. D. S. de
700 1 $aNOBREGA, R. S. A.
700 1 $aFERNANDES JUNIOR, P. I.
773 $tRhizosphere$gv. 15, 100211, Sept. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Trigo. |
|
Data corrente: |
06/06/2007 |
|
Data da última atualização: |
04/09/2017 |
|
Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
|
Autoria: |
BONATO, E. R.; COSTAMILAN, L. M.; FERREIRA FILHO, A.; SILVA, J. F. V.; BERTAGNOLLI, P. F. |
|
Afiliação: |
CNPT. |
|
Título: |
Levantamento de ocorrência do nematóide de cisto da soja (Heterodera glycines Ichinohe, 1952), no Rio Grande do Sul. |
|
Ano de publicação: |
2002 |
|
Fonte/Imprenta: |
Passo Fundo: Embrapa Trigo, 2002. |
|
Páginas: |
28 p. |
|
Série: |
(Embrapa Trigo. Boletim de pesquisa e desenvolvimento, 7). |
|
ISSN: |
1676-4544 |
|
Idioma: |
Português |
|
Conteúdo: |
Durante o primeiro semestre de 2001 e 2002, realizou-se levantamento nematológico em 117 municípios da região produtora de soja do Rio Grande do sul para determinar a presença do nematóide de cisto da soja - NCS (Heterodera glycines). Este trabalho, tem por objetivo, justamente, informar essa presença, de tal forma que, com a conscientização de todos, possamos adotar medidas de controle que garantam a continuidade da melhoria da produção, assim como tem ocorrido no exterior e nos estados da Região Centro-brasileira. |
|
Palavras-Chave: |
Brasil; Pests of plants; Rio Grande do Sul. |
|
Thesagro: |
Doença; Praga de Planta; Soja. |
|
Categoria do assunto: |
--
H Saúde e Patologia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/84117/1/CNPT-BOL.-PESQ.-7-02.pdf
|
|
Marc: |
LEADER 01311nam a2200265 a 4500
001 1850245
005 2017-09-04
008 2002 bl uuuu u0uu1 u #d
022 $a1676-4544
100 1 $aBONATO, E. R.
245 $aLevantamento de ocorrência do nematóide de cisto da soja (Heterodera glycines Ichinohe, 1952), no Rio Grande do Sul.
260 $aPasso Fundo: Embrapa Trigo$c2002
300 $a28 p.
490 $a(Embrapa Trigo. Boletim de pesquisa e desenvolvimento, 7).
520 $aDurante o primeiro semestre de 2001 e 2002, realizou-se levantamento nematológico em 117 municípios da região produtora de soja do Rio Grande do sul para determinar a presença do nematóide de cisto da soja - NCS (Heterodera glycines). Este trabalho, tem por objetivo, justamente, informar essa presença, de tal forma que, com a conscientização de todos, possamos adotar medidas de controle que garantam a continuidade da melhoria da produção, assim como tem ocorrido no exterior e nos estados da Região Centro-brasileira.
650 $aDoença
650 $aPraga de Planta
650 $aSoja
653 $aBrasil
653 $aPests of plants
653 $aRio Grande do Sul
700 1 $aCOSTAMILAN, L. M.
700 1 $aFERREIRA FILHO, A.
700 1 $aSILVA, J. F. V.
700 1 $aBERTAGNOLLI, P. F.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Trigo (CNPT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
