| |
|
|
| Registros recuperados : 63 | |
| 1. |  | HUNGRIA, M.; MEGÍAS, M. Uma década de ouro se aproxima para a microbiologia do solo: expectativas da pesquisa, da indústria, dos agricultores e da sociedade. In: IBEROAMERICAN CONFERENCE ON BENEFICIAL PLANT - MICROORGANISM - ENVIRONMENT INTERACTIONS, 2.; NATIONAL MEETING OF THE SPANISH SOCIETY OF NITROGEN FIXATION, 14.; LATIN AMERICAN MEETING ON RHIZOBIOLOGY, 26.; SPANISH-PROTUGUESE CONGRESS ON NITROGEN FIXATION, 3., 2013, Sevilla. Microorganisms for future agriculture. Sevilla: Universidad de Sevilla; ALAR; SEFIN, 2013. p. 510-517.| Biblioteca(s): Embrapa Soja. |
|    |
| 4. | | MEGÍAS, M.; MEGIAS, M. E.; REIS, F. B.; HUNGRIA, M.; OLLERO, F. J. Uso de metabolitos microbianos como aditivos en inoculantes. In: SYMPOSIUM ON BIOLOGICAL NITROGEN FIXATION WITH NON-LEGUMES, 16., LATINAMERICAN WORKSHOP OF PGPR, 4., RELARE, 19., 2018, Foz do Iguaçu. Anais... [Brasília, DF]: Embrapa, 2018. resumo. p. 15. Título do evento por extenso: REUNIÃO DA REDE DE LABORATÓRIOS PARA RECOMENDAÇÃO, PADRONIZAÇÃO E DIFUSÃO DE TECNOLOGIAS DE INOCULANTES MICROBIANOS DE INTERESSE AGRÍCOLA, 19., 2018, Foz do Iguaçu.
Editores Técnicos: Jerri Édson Zilli, Fábio...| Biblioteca(s): Embrapa Soja. |
| |
| 8. | | MEGÍA, E.; MEGÍAS, M.; OLLERO, F. J.; HUNGRIA, M. Draft genome sequence of Pantoea ananatis strain AMG521, a rice plant growth-promoting bacterial endophyte isolated from the Guadalquivir Marshes in Southern Spain. Genome Announcements, Washington, DC, v. 4, n. 1, p. 1-2, Jan./Feb. 2016.| Biblioteca(s): Embrapa Soja. |
| |
| 11. | | MEGÍAS, M. E.; PIRES, R. C.; MOYANO, I.; REIS JUNIOR, F. B. dos; OLLERO, F. J.; SIMON, M.; ZILLI, J. E.; MEGÍAS, M. Identification and characterization of rhizobia isolated from nodules of Mimosa spp.which efficiently nodulate Phaseolus vulgaris. In: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 20., 2017, Granada, Spain. Proceedings... Granada:University of Granada, 2017. p. 91| Biblioteca(s): Embrapa Agrobiologia. |
|  |
| 12. | | MEGÍAS, M. E.; SOARES NETO, C. B.; ZILLI, J. E.; BAURA, A.; ANDRADE, L. M. de; VALE, H. M. M. do; MEGÍAS, M.; REIS JUNIOR, F. B. dos. Phylogenetic characterization of diazotrophic symbiotic bacteria isolated from Mimosa spp. plants growing in ultramafic soils. In: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 20., 2017, Granada, Spain. Proceedings... Granada:University of Granada, 2017. p. 90| Biblioteca(s): Embrapa Agrobiologia. |
| |
| 14. | | FUKAMI, J.; NOGUEIRA, M. A.; MEGÍAS, M.; OLLERO MÁRQUEZ, F. J.; HUNGRIA, M. Atividade de enzimas antioxidantes em milho (Zea mays) submetidas à inoculação com azospirillum brasilense. In: REUNIÃO LATINOAMERICANA DE RIZOBIOLOGIA - RELAR, 27., 2016, Londrina. Fortalecendo as parcerias Sul-Sul: anais. Curitiba: SBCS-NEPAR, 2016. p. 190. Editores: Mariangela Hungria, Douglas Fabiano Gomes, Arnaldo Colozzi Filho.| Biblioteca(s): Embrapa Soja. |
| |
| 16. | | MARKS, B. B.; MEGÍAS, M.; OLLERO, F. J.; NOGUEIRA, M. A.; ARAUJO, R. S.; HUNGRIA, M. Maize growth promotion by inoculation with Azospirillum brasilense and metabolites of Rhizobium tropici enriched on lipo-chitooligosaccharides (LCOs). AMB Express, v. 5, n. 1, p. 71, nov. 2015.| Biblioteca(s): Embrapa Soja. |
| |
| 17. | | MEGIAS, E.; REIS JUNIOR, F. B.; RIBEIRO, R. A.; OLLERO, F. J.; MEGIAS, M.; HUNGRIA, M. Genome sequence of Pantoea ananatis strain amg 501, a plant growth-promoting bacterium isolated from rice leaves grown in paddies of southern spain. Genome Announcements, v. 5, n. 34, e00848-17, 2017. 2 p.| Biblioteca(s): Embrapa Cerrados; Embrapa Soja. |
| |
| 18. | | MEGIAS, E.; REIS JUNIOR, F. B.; RIBEIRO, R. A.; MEGIAS, M.; OLLERO, F. J.; HUNGRIA, M. Genome sequence of Pantoea sp. strain 1.19, isolated from rice rhizosphere, with the capacity to promote growth of legumes and nonlegumes. Genome Announcements, v. 5, n. 30, e00707-17, 2017.| Biblioteca(s): Embrapa Cerrados; Embrapa Soja. |
| |
| Registros recuperados : 63 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
22/04/2016 |
|
Data da última atualização: |
10/07/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
CERRO, P. del; ROLLA-SANTOS, A. A. P.; VALDERRAMA-FERNANDEZ, R.; GIL-SERRANO, A.; BELLOGÍN, R. A.; GOMES, D. F.; MONTAÑO, F. P.; MEGÍAS, M.; HUNGRIA, M.; JAVIER OLLERO, F. |
|
Afiliação: |
PABLO DEL CERRO, Universidad de Sevilla; AMANDA A. P. ROLLA SANTOS, Pós-graduanda; ROCÍO VALDERRAMA FERNANDEZ, Universidad de Sevilla; ANTONIO GIL SERRANO, Universidad de Sevilla; RAMÓN A. BELLOGÍN, Universidad de Sevilla; DOUGLAS FABIANO GOMES, Pós-graduando; FRANCISCO PÉREZ MONTAÑO, Universidad de Sevilla; MANUEL MEGÍAS, Universidad de Sevilla; MARIANGELA HUNGRIA DA CUNHA, CNPSO; FRANCISCO JAVIER OLLERO, Universidad de Sevilla. |
|
Título: |
NrcR, a new transcriptional regulator of Rhizobium tropici CIAT 899 involved in the Legume root-nodule symbiosis. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
PLOS One, v. 11, n. 4, e0154029, Apr. 2016. |
|
ISSN: |
1932-6203 |
|
DOI: |
10.1371/journal.pone.0154029 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The establishment of nitrogen-fixing rhizobium-legume symbioses requires a highly complex cascade of events. In this molecular dialogue the bacterial NodD transcriptional regulators in conjunction with plant inducers, mostly flavonoids, are responsible for the biosynthesis and secretion of Nod factors which are key molecules for successful nodulation. Other transcriptional regulators related to the symbiotic process have been identified in rhizobial genomes, including negative regulators such as NolR. Rhizobium tropici CIAT 899 is an important symbiont of common bean (Phaseolus vulgaris L.), and its genome encompasses intriguing features such as five copies of nodD genes, as well as other possible transcriptional regulators including the NolR protein. Here we describe and characterize a new regulatory gene located in the non-symbiotic plasmid pRtrCIAT899c, that shows homology (46% identity) with the nolR gene located in the chromosome of CIAT 899. The mutation of this gene, named nrcR (nolR-like plasmid c Regulator), enhanced motility and exopolysaccharide production in comparison to the wild-type strain. Interestingly, the number and decoration of Nod Factors produced by this mutant were higher than those detected in the wildtype strain, especially under salinity stress. The nrcR mutant showed delayed nodulation and reduced competitiveness with P. vulgaris, and reduction in nodule number and shoot dry weight in both P. vulgaris and Leucaena leucocephala. Moreover, the mutant exhibited reduced capacity to induce the nodC gene in comparison to the wild-type CIAT 899. The finding of a new nod-gene regulator located in a non-symbiotic plasmid may reveal the existence of even more complex mechanisms of regulation of nodulation genes in R. tropici CIAT 899 that may be applicable to other rhizobial species. MenosThe establishment of nitrogen-fixing rhizobium-legume symbioses requires a highly complex cascade of events. In this molecular dialogue the bacterial NodD transcriptional regulators in conjunction with plant inducers, mostly flavonoids, are responsible for the biosynthesis and secretion of Nod factors which are key molecules for successful nodulation. Other transcriptional regulators related to the symbiotic process have been identified in rhizobial genomes, including negative regulators such as NolR. Rhizobium tropici CIAT 899 is an important symbiont of common bean (Phaseolus vulgaris L.), and its genome encompasses intriguing features such as five copies of nodD genes, as well as other possible transcriptional regulators including the NolR protein. Here we describe and characterize a new regulatory gene located in the non-symbiotic plasmid pRtrCIAT899c, that shows homology (46% identity) with the nolR gene located in the chromosome of CIAT 899. The mutation of this gene, named nrcR (nolR-like plasmid c Regulator), enhanced motility and exopolysaccharide production in comparison to the wild-type strain. Interestingly, the number and decoration of Nod Factors produced by this mutant were higher than those detected in the wildtype strain, especially under salinity stress. The nrcR mutant showed delayed nodulation and reduced competitiveness with P. vulgaris, and reduction in nodule number and shoot dry weight in both P. vulgaris and Leucaena leucocephala. Moreover, the mutan... Mostrar Tudo |
|
Thesagro: |
Fixação de nitrogenio. |
|
Thesaurus NAL: |
Nitrogen fixation. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142515/1/NrcR-a-new-transcriptional....pdf
|
|
Marc: |
LEADER 02681naa a2200277 a 4500
001 2043848
005 2017-07-10
008 2016 bl uuuu u00u1 u #d
022 $a1932-6203
024 7 $a10.1371/journal.pone.0154029$2DOI
100 1 $aCERRO, P. del
245 $aNrcR, a new transcriptional regulator of Rhizobium tropici CIAT 899 involved in the Legume root-nodule symbiosis.$h[electronic resource]
260 $c2016
520 $aThe establishment of nitrogen-fixing rhizobium-legume symbioses requires a highly complex cascade of events. In this molecular dialogue the bacterial NodD transcriptional regulators in conjunction with plant inducers, mostly flavonoids, are responsible for the biosynthesis and secretion of Nod factors which are key molecules for successful nodulation. Other transcriptional regulators related to the symbiotic process have been identified in rhizobial genomes, including negative regulators such as NolR. Rhizobium tropici CIAT 899 is an important symbiont of common bean (Phaseolus vulgaris L.), and its genome encompasses intriguing features such as five copies of nodD genes, as well as other possible transcriptional regulators including the NolR protein. Here we describe and characterize a new regulatory gene located in the non-symbiotic plasmid pRtrCIAT899c, that shows homology (46% identity) with the nolR gene located in the chromosome of CIAT 899. The mutation of this gene, named nrcR (nolR-like plasmid c Regulator), enhanced motility and exopolysaccharide production in comparison to the wild-type strain. Interestingly, the number and decoration of Nod Factors produced by this mutant were higher than those detected in the wildtype strain, especially under salinity stress. The nrcR mutant showed delayed nodulation and reduced competitiveness with P. vulgaris, and reduction in nodule number and shoot dry weight in both P. vulgaris and Leucaena leucocephala. Moreover, the mutant exhibited reduced capacity to induce the nodC gene in comparison to the wild-type CIAT 899. The finding of a new nod-gene regulator located in a non-symbiotic plasmid may reveal the existence of even more complex mechanisms of regulation of nodulation genes in R. tropici CIAT 899 that may be applicable to other rhizobial species.
650 $aNitrogen fixation
650 $aFixação de nitrogenio
700 1 $aROLLA-SANTOS, A. A. P.
700 1 $aVALDERRAMA-FERNANDEZ, R.
700 1 $aGIL-SERRANO, A.
700 1 $aBELLOGÍN, R. A.
700 1 $aGOMES, D. F.
700 1 $aMONTAÑO, F. P.
700 1 $aMEGÍAS, M.
700 1 $aHUNGRIA, M.
700 1 $aJAVIER OLLERO, F.
773 $tPLOS One$gv. 11, n. 4, e0154029, Apr. 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
