Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar

Detalhes bibliográficos
Autor(a) principal: Matos, Gustavo Feitosa de
Data de Publicação: 2017
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
Texto Completo: https://rima.ufrrj.br/jspui/handle/20.500.14407/13622
Resumo: Estudos recentes de biologia molecular indicaram que bactérias do gênero Bradyrhizobium e Rhizobium também podem ter um papel no processo de fixação biológica de nitrogênio (FBN) quando associadas à cana-de-açúcar. O uso de plantas de Vigna unguiculata como “isca” possibilitou a obtenção de uma coleção diversa de Bradyrhizobium spp. endofíticos a partir de raízes de cana-de-açúcar. O presente trabalho teve como objetivo caracterizar um grupo de bactérias do gênero Bradyrhizobium proveniente de raízes de cana-de-açúcar, assim como avaliar a capacidade de uma estirpe representante desse grupo e de um isolado do gênero Rhizobium em promover efeito de crescimento nessa cultura. Para definir o posicionamento taxonômico dos isolados do grupo, análises filogenéticas foram realizadas com os genes individuais 16S rRNA, ITS, nodC e recA e análise de sequência de multilocus (MLSA) envolvendo quatro genes ‘housekeeping’ (recA, dnaK, glnII e atpD), em quatro isolados representantes (BR 10280T, BR 10266, BR10555 e BR 10556). Além disso, foram realizados testes bioquímicos e morfofisiológicos. Experimento onde os isolados P9-20 (BR 10280) (Bradyrhizobium sp.) e P5-2 (Rhizobium sp.) foram inoculados em minitoletes de cana-de-açúcar foi conduzido em casa de vegetação. Foram realizadas coletas aos 30 e 75 dias após transplantio (DAT). Entre as variáveis analisadas estão o índice de velocidade de brotamento (IVB), massa seca e Nitrogênio (N) total. Análises filogenéticas posicionaram os isolados no super clado de B. japonicum em um ramo independente próximo a B. huanghuaihaiense, um microssimbionte de soja. Apesar da proximidade do grupo em estudo com B. huanghuaihaiense, estes isolados não induziram nodulação em Glycine max. Além disso, diferente de B. huanghuaihaiense, os novos isolados induziram a formação de nódulos em Phaseolus vulgaris. Em estudos morfofisiológicos foram demostradas diferenças significativas entre os isolados representantes do grupo em estudo e B. huanghuaihaiense. Em experimento em casa de vegetação, observou-se na primeira coleta um incremento sobre o IVB e massa seca da raiz no tratamento inoculado com o isolado P5-2, embora não tenham sido observadas diferenças estatísticas. Na segunda coleta, incrementos foram encontrados na massa seca de raiz e volume de raiz, assim como, no N total das raízes e parte aérea, no tratamento incoculado com P5-2, embora não tenham apresentado diferença estatística. Massa seca da parte aérea do tratamento inoculado com P5-2 apresentou incremento na primeira e segunda coleta, em relação aos controles, embora não tenha sido detectada diferença estatística. Os resultados da caracterização do grupo indicam que os isolados de cana-de-açúcar do gênero Bradyrhizobium representam uma nova espécie desse gênero. Em relação ao experimento em casa de vegetação, o isolado do gênero Rhizobium sp. apresentou potencial como promotor de crescimento na cultura de cana-de-açúcar
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spelling Matos, Gustavo Feitosa deBaldani, José Ivo538.864.458-87http://lattes.cnpq.br/0129530048505952Rouws, Luc Felicianus Marie014.563.806-56http://lattes.cnpq.br/4500797890789377Zilli, Jerri ÉdsonMedici, Leonardo Oliveira602.783.683-01http://lattes.cnpq.br/01295300485059522023-12-22T02:49:04Z2023-12-22T02:49:04Z2017-02-23MATOS, Gustavo Feitosa de. Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar. 2017. 57 f. Dissertação (Mestrado em Fitotecnia) - Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Seropédica, 2017.https://rima.ufrrj.br/jspui/handle/20.500.14407/13622Estudos recentes de biologia molecular indicaram que bactérias do gênero Bradyrhizobium e Rhizobium também podem ter um papel no processo de fixação biológica de nitrogênio (FBN) quando associadas à cana-de-açúcar. O uso de plantas de Vigna unguiculata como “isca” possibilitou a obtenção de uma coleção diversa de Bradyrhizobium spp. endofíticos a partir de raízes de cana-de-açúcar. O presente trabalho teve como objetivo caracterizar um grupo de bactérias do gênero Bradyrhizobium proveniente de raízes de cana-de-açúcar, assim como avaliar a capacidade de uma estirpe representante desse grupo e de um isolado do gênero Rhizobium em promover efeito de crescimento nessa cultura. Para definir o posicionamento taxonômico dos isolados do grupo, análises filogenéticas foram realizadas com os genes individuais 16S rRNA, ITS, nodC e recA e análise de sequência de multilocus (MLSA) envolvendo quatro genes ‘housekeeping’ (recA, dnaK, glnII e atpD), em quatro isolados representantes (BR 10280T, BR 10266, BR10555 e BR 10556). Além disso, foram realizados testes bioquímicos e morfofisiológicos. Experimento onde os isolados P9-20 (BR 10280) (Bradyrhizobium sp.) e P5-2 (Rhizobium sp.) foram inoculados em minitoletes de cana-de-açúcar foi conduzido em casa de vegetação. Foram realizadas coletas aos 30 e 75 dias após transplantio (DAT). Entre as variáveis analisadas estão o índice de velocidade de brotamento (IVB), massa seca e Nitrogênio (N) total. Análises filogenéticas posicionaram os isolados no super clado de B. japonicum em um ramo independente próximo a B. huanghuaihaiense, um microssimbionte de soja. Apesar da proximidade do grupo em estudo com B. huanghuaihaiense, estes isolados não induziram nodulação em Glycine max. Além disso, diferente de B. huanghuaihaiense, os novos isolados induziram a formação de nódulos em Phaseolus vulgaris. Em estudos morfofisiológicos foram demostradas diferenças significativas entre os isolados representantes do grupo em estudo e B. huanghuaihaiense. Em experimento em casa de vegetação, observou-se na primeira coleta um incremento sobre o IVB e massa seca da raiz no tratamento inoculado com o isolado P5-2, embora não tenham sido observadas diferenças estatísticas. Na segunda coleta, incrementos foram encontrados na massa seca de raiz e volume de raiz, assim como, no N total das raízes e parte aérea, no tratamento incoculado com P5-2, embora não tenham apresentado diferença estatística. Massa seca da parte aérea do tratamento inoculado com P5-2 apresentou incremento na primeira e segunda coleta, em relação aos controles, embora não tenha sido detectada diferença estatística. Os resultados da caracterização do grupo indicam que os isolados de cana-de-açúcar do gênero Bradyrhizobium representam uma nova espécie desse gênero. Em relação ao experimento em casa de vegetação, o isolado do gênero Rhizobium sp. apresentou potencial como promotor de crescimento na cultura de cana-de-açúcarCNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoRecent molecular biology studies have indicated that bacteria of the genus Bradyrhizobium and Rhizobium may also play a role in the biological nitrogen fixation process (BNF) when associated with sugarcane. The use of Vigna unguiculata trap plants allowed obtaining a diverse collection of endophytic Bradyrhizobium spp. from sugarcane roots. The present work aimed to characterize a group of bacteria of the genus Bradyrhizobium from sugarcane roots, as well as to evaluate the ability of a representative strain of this group and an isolate of the genus Rhizobium to promote growth in this crop. To define the taxonomic position of the isolates of the group, phylogenetic analyzes were performed with the individual 16S rRNA, ITS, nodC and recA genes and multilocus sequence analysis (MLSA) involving four housekeeping genes (recA, dnaK, glnII and atpD), in four representative isolates (BR 10280T, BR 10266, BR 10555 and BR 10556). In addition, biochemical and morphophysiological tests were performed. Experiments in which the isolates P9-20 (BR 10280) (Bradyrhizobium sp.) and P5-2 (Rhizobium sp.) were inoculated in sugarcane seedlings were conducted in a greenhouse to evaluate the growth promoting effect of these isolates. Two harvests were performed at 30 and 75 days after transplanting (DAT). Among the analyzed variables were the budding speed index (BSI), dry mass and total nitrogen (N). Phylogenetic analyzes positioned the isolates in the superclade of B. japonicum in an independent branch close to B. huanghuaihaiense, a soybean micro-symbiont. Despite the proximity of the group under study to B. huanghuaihaiense, these isolates did not induce nodulation in Glycine max. In addition, unlike B. huanghuaihaiense, the new isolates induced nodule formation in Phaseolus vulgaris. In morphophysiological studies, significant differences were demonstrated between the representative isolates from this study and B. huanghuaihaiense. In the greenhouse experiment, an increase on BSI and root dry mass of the inoculated treatment with the P5-2 isolate was observed in the first harvest. In the second harvest, increments were found in the root dry mass and root volume, as well as in the total N of the roots and aerial part, in the treatment inoculated with P5-2, although no statistical difference was detected. These results of the characterization indicate that the sugarcane isolates of the genus Bradyrhizobium represent a new species of this genus. In relation to the greenhouse experiment, the isolate of the genus Rhizobium sp. presented potential as a growth promoter in the sugarcane crop.application/pdfporUniversidade Federal Rural do Rio de JaneiroPrograma de Pós-Graduação em FitotecniaUFRRJBrasilInstituto de AgronomiaBradyrhizobiumtaxonomia de procariotospromoção de crescimento em cana-de-açúcarBradyrhizobiumtaxonomy of prokaryotesPromotion of growth in sugarcaneAgronomiaCaracterização de novos rizóbios isolados de raízes de cana-de-açúcarCharacterization of new rhizobia isolated from sugarcane rootsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisALMEIDA, N. F.; YAN, S. C.; CAI, R. M.; CLARKE, C. R.; MORRIS, C. E.; SCHAAD, N. W.; SCHUENZEL, E. L.; LACY, G. H.; SUN, X. A., JONES, J. B.; CASTILLO, J. A.; BULL, C. T.; LEMAN, S.; GUTTMAN, D. S.; SETUBAL, J. C.; VINATZER, B. A. A multilocus sequence typing and analysis database and website for plant-associated Microbes. 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YAO, Z.Y.; KAN, F.L.; WANG, E.T.; WEI, G.H.; CHEN, W.X. Characterization of rhizobia that nodulate legume species of the genus Lespedeza and description of Bradyrhizobium yuanmingense sp. nov. International Journal of Systematic and Evolutionary Microbiology, v. 52, p. 2219-2230, 2002. YAO, Z.Y.; KAN, F.L.; WANG, E.T.; WEI, G.H.; CHEN, W.X. Characterization of rhizobia that nodulate legume species within the genus Lespedeza and description of Bradyrhizobium yuanmingense sp. nov. International Journal of Systematic Bacteriology, v. 52, p. 2219–2230, 2002. YU, X.; CLOUTIER, S.; TAMBONG, J.T.; BROMFIELD, E.S. Bradyrhizobium ottawaense sp. nov., a symbiotic nitrogen fixing bacterium from root nodules of soybeans in Canada. International journal of systematic and evolutionary microbiology, v. 64, p. 3202-3207, 2014. ZAKHIA, F.; LAJUDIE, P. Taxonomy of rhizobia. Agronomie, v. 21, n. 6-7, p. 569-576, 2001. ZHANG, Y.M.; LI JR, Y.; CHEN, W.F.; WANG, E.T.; SUI, X.H.; LI, Q.Q.; ZHANG, Y.Z.; ZHOU, Y.G.; CHEN, W.X. Bradyrhizobium huanghuaihaiense sp. nov. an effective symbiotic bacterium isolated from soybean (Glycine max L.) nodules. International journal of systematic and evolutionary microbiology, v. 62, p. 1951-1957, 2012.https://tede.ufrrj.br/retrieve/53640/2017%20-%20Gustavo%20Feitosa%20de%20Matos.pdf.jpghttps://tede.ufrrj.br/jspui/handle/jspui/2436Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-09-13T17:03:37Z No. of bitstreams: 1 2017 - Gustavo Feitosa de Matos.pdf: 1844017 bytes, checksum: 0ed6966082e21d15123a12cd0e5777ef (MD5)Made available in DSpace on 2018-09-13T17:03:38Z (GMT). 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dc.title.por.fl_str_mv Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
dc.title.alternative.eng.fl_str_mv Characterization of new rhizobia isolated from sugarcane roots
title Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
spellingShingle Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
Matos, Gustavo Feitosa de
Bradyrhizobium
taxonomia de procariotos
promoção de crescimento em cana-de-açúcar
Bradyrhizobium
taxonomy of prokaryotes
Promotion of growth in sugarcane
Agronomia
title_short Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
title_full Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
title_fullStr Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
title_full_unstemmed Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
title_sort Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar
author Matos, Gustavo Feitosa de
author_facet Matos, Gustavo Feitosa de
author_role author
dc.contributor.author.fl_str_mv Matos, Gustavo Feitosa de
dc.contributor.advisor1.fl_str_mv Baldani, José Ivo
dc.contributor.advisor1ID.fl_str_mv 538.864.458-87
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/0129530048505952
dc.contributor.advisor-co1.fl_str_mv Rouws, Luc Felicianus Marie
dc.contributor.advisor-co1ID.fl_str_mv 014.563.806-56
dc.contributor.advisor-co1Lattes.fl_str_mv http://lattes.cnpq.br/4500797890789377
dc.contributor.referee1.fl_str_mv Zilli, Jerri Édson
dc.contributor.referee2.fl_str_mv Medici, Leonardo Oliveira
dc.contributor.authorID.fl_str_mv 602.783.683-01
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/0129530048505952
contributor_str_mv Baldani, José Ivo
Rouws, Luc Felicianus Marie
Zilli, Jerri Édson
Medici, Leonardo Oliveira
dc.subject.por.fl_str_mv Bradyrhizobium
taxonomia de procariotos
promoção de crescimento em cana-de-açúcar
topic Bradyrhizobium
taxonomia de procariotos
promoção de crescimento em cana-de-açúcar
Bradyrhizobium
taxonomy of prokaryotes
Promotion of growth in sugarcane
Agronomia
dc.subject.eng.fl_str_mv Bradyrhizobium
taxonomy of prokaryotes
Promotion of growth in sugarcane
dc.subject.cnpq.fl_str_mv Agronomia
description Estudos recentes de biologia molecular indicaram que bactérias do gênero Bradyrhizobium e Rhizobium também podem ter um papel no processo de fixação biológica de nitrogênio (FBN) quando associadas à cana-de-açúcar. O uso de plantas de Vigna unguiculata como “isca” possibilitou a obtenção de uma coleção diversa de Bradyrhizobium spp. endofíticos a partir de raízes de cana-de-açúcar. O presente trabalho teve como objetivo caracterizar um grupo de bactérias do gênero Bradyrhizobium proveniente de raízes de cana-de-açúcar, assim como avaliar a capacidade de uma estirpe representante desse grupo e de um isolado do gênero Rhizobium em promover efeito de crescimento nessa cultura. Para definir o posicionamento taxonômico dos isolados do grupo, análises filogenéticas foram realizadas com os genes individuais 16S rRNA, ITS, nodC e recA e análise de sequência de multilocus (MLSA) envolvendo quatro genes ‘housekeeping’ (recA, dnaK, glnII e atpD), em quatro isolados representantes (BR 10280T, BR 10266, BR10555 e BR 10556). Além disso, foram realizados testes bioquímicos e morfofisiológicos. Experimento onde os isolados P9-20 (BR 10280) (Bradyrhizobium sp.) e P5-2 (Rhizobium sp.) foram inoculados em minitoletes de cana-de-açúcar foi conduzido em casa de vegetação. Foram realizadas coletas aos 30 e 75 dias após transplantio (DAT). Entre as variáveis analisadas estão o índice de velocidade de brotamento (IVB), massa seca e Nitrogênio (N) total. Análises filogenéticas posicionaram os isolados no super clado de B. japonicum em um ramo independente próximo a B. huanghuaihaiense, um microssimbionte de soja. Apesar da proximidade do grupo em estudo com B. huanghuaihaiense, estes isolados não induziram nodulação em Glycine max. Além disso, diferente de B. huanghuaihaiense, os novos isolados induziram a formação de nódulos em Phaseolus vulgaris. Em estudos morfofisiológicos foram demostradas diferenças significativas entre os isolados representantes do grupo em estudo e B. huanghuaihaiense. Em experimento em casa de vegetação, observou-se na primeira coleta um incremento sobre o IVB e massa seca da raiz no tratamento inoculado com o isolado P5-2, embora não tenham sido observadas diferenças estatísticas. Na segunda coleta, incrementos foram encontrados na massa seca de raiz e volume de raiz, assim como, no N total das raízes e parte aérea, no tratamento incoculado com P5-2, embora não tenham apresentado diferença estatística. Massa seca da parte aérea do tratamento inoculado com P5-2 apresentou incremento na primeira e segunda coleta, em relação aos controles, embora não tenha sido detectada diferença estatística. Os resultados da caracterização do grupo indicam que os isolados de cana-de-açúcar do gênero Bradyrhizobium representam uma nova espécie desse gênero. Em relação ao experimento em casa de vegetação, o isolado do gênero Rhizobium sp. apresentou potencial como promotor de crescimento na cultura de cana-de-açúcar
publishDate 2017
dc.date.issued.fl_str_mv 2017-02-23
dc.date.accessioned.fl_str_mv 2023-12-22T02:49:04Z
dc.date.available.fl_str_mv 2023-12-22T02:49:04Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv MATOS, Gustavo Feitosa de. Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar. 2017. 57 f. Dissertação (Mestrado em Fitotecnia) - Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Seropédica, 2017.
dc.identifier.uri.fl_str_mv https://rima.ufrrj.br/jspui/handle/20.500.14407/13622
identifier_str_mv MATOS, Gustavo Feitosa de. Caracterização de novos rizóbios isolados de raízes de cana-de-açúcar. 2017. 57 f. Dissertação (Mestrado em Fitotecnia) - Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Seropédica, 2017.
url https://rima.ufrrj.br/jspui/handle/20.500.14407/13622
dc.language.iso.fl_str_mv por
language por
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UEDA, T.; SUGA, Y.; YAHIRO, N.;
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