Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros

Detalhes bibliográficos
Ano de defesa: 2010
Autor(a) principal: Gon?alves, Karin da Silva lattes
Orientador(a): Medici, Leonardo Oliveira lattes
Banca de defesa: Araujo, Jo?o Sebasti?o de Paula, Olivares, F?bio Lopes
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal Rural do Rio de Janeiro
Programa de Pós-Graduação: Programa de P?s-Gradua??o em Fitotecnia
Departamento: Instituto de Agronomia
País: Brasil
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: https://tede.ufrrj.br/jspui/handle/jspui/4050
Resumo: This work was accomplished at the Laboratory of Diagnosis of Diseases of the Institute of Agronomy (Campus Horticultura) together with the Laboratory of Epidemiology and Pathology of Seeds of the Department of Fitotecnia of the Institute of Agronomy of UFRuralRJ, in the municipal of Serop?dica / RJ, in the period of 2008-2010.The objective was to test the efficiency of four strains of endophytic bacteria to promote growth, vigor and mitigation of water stress in tomato variety Santa Clara. Seeds of tomato were inoculated with Herbaspirillum seropedicae, obtained from roots of sugar cane, Burkholderia silvatlanta, obtained from roots of pineapple, Acinetobacter sp., obtained from tomato seeds and another bacterium still unidentified also obtained from tomato seeds. The inoculated seeds were used in two experiments. To evaluate the stress mitigation, three-days-old seedlings were transferred to plastic boxes with the hidric potentials of 0.0MPa or -0.53MPa, obtained with Polyethylene Glycol (PEG 6000), at concentrations of 0,0g L-1 and 210g L-1, respectively. To evaluate the growth promotion, the seeds were germinated in plastic boxes without PEG. The trait evaluate in the mitigation experiment was the root lenght. The growth promotion was evaluated by Germination Speed Index (GSI) and germination rate. The mitigation of osmotic stress effect was promoted by inoculation of seeds with Acinetobacter sp. All of the inoculated bacteria increased GSI of the seeds significantly, evidencing their potential as plant growth-promoters.
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spelling Medici, Leonardo Oliveira001.234.037-58http://lattes.cnpq.br/7750014045851333Araujo, Jo?o Sebasti?o de PaulaOlivares, F?bio Lopes610.148.851-91http://lattes.cnpq.br/7130572064881578Gon?alves, Karin da Silva2020-10-21T13:08:25Z2010-11-26GON?ALVES, Karin da Silva. Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros. 2010. 42 f. Disserta??o (Mestrado em Fitotecnia) - Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, 2010.https://tede.ufrrj.br/jspui/handle/jspui/4050This work was accomplished at the Laboratory of Diagnosis of Diseases of the Institute of Agronomy (Campus Horticultura) together with the Laboratory of Epidemiology and Pathology of Seeds of the Department of Fitotecnia of the Institute of Agronomy of UFRuralRJ, in the municipal of Serop?dica / RJ, in the period of 2008-2010.The objective was to test the efficiency of four strains of endophytic bacteria to promote growth, vigor and mitigation of water stress in tomato variety Santa Clara. Seeds of tomato were inoculated with Herbaspirillum seropedicae, obtained from roots of sugar cane, Burkholderia silvatlanta, obtained from roots of pineapple, Acinetobacter sp., obtained from tomato seeds and another bacterium still unidentified also obtained from tomato seeds. The inoculated seeds were used in two experiments. To evaluate the stress mitigation, three-days-old seedlings were transferred to plastic boxes with the hidric potentials of 0.0MPa or -0.53MPa, obtained with Polyethylene Glycol (PEG 6000), at concentrations of 0,0g L-1 and 210g L-1, respectively. To evaluate the growth promotion, the seeds were germinated in plastic boxes without PEG. The trait evaluate in the mitigation experiment was the root lenght. The growth promotion was evaluated by Germination Speed Index (GSI) and germination rate. The mitigation of osmotic stress effect was promoted by inoculation of seeds with Acinetobacter sp. All of the inoculated bacteria increased GSI of the seeds significantly, evidencing their potential as plant growth-promoters.Este trabalho foi desenvolvido no Laborat?rio de Fitossanidade (Setor Horticultura) em conjunto com o Laborat?rio de Epidemiologia e Patologia de Sementes, ambos do Departamento de Fitotecnia do Instituto de Agronomia da UFRuralRJ, munic?pio de Serop?dica/RJ, per?odo de 2008 a 2010. O objetivo foi testar o efeito de quatro isolados de bact?rias endof?ticas como mitigadores de estresse osm?tico e promotores de crescimento em tomateiros (Solannum lycoperdicon) da variedade Santa Clara. Sementes de tomateiros foram inoculadas com as bact?rias Herbaspirillum seropedicae (HRC 54), retirada de raizes de cana, Burkholderia silvatlanta, obtida de ra?zes de abacaxi, Acinetobacter sp., obtida de sementes de tomateiro e mais uma bact?ria ainda n?o identificada, tamb?m obtida de sementes de tomateiro. As sementes inoculadas foram empregadas em dois experimentos. No primeiro experimento para avaliar a mitiga??o do estresse osm?tico, pl?ntulas com tr?s dias de idade foram transferidas para caixas pl?sticas com os potenciais h?dricos de 0,0MPa ou -0,53MPa, obtidos com Polietileno Glicol (PEG 6000), nas concentra??es de 0,0g L-1 e 210g L-1, respectivamente. No segundo experimento, para avaliar a promo??o do crescimento, as sementes foram germinadas em caixas pl?sticas sem PEG. A vari?vel avaliada no experimento da mitiga??o foi o crescimento de raiz de pl?ntulas. A promo??o do crescimento, por sua vez, foi avaliada com medidas do ?ndice de Velocidade de Germina??o (IVG) e da porcentagem de germina??o de pl?ntulas normais. A mitiga??o do estresse osm?tico foi promovida pela inocula??o de sementes com Acinetobacter sp. Todas as bact?rias inoculadas promoveram significativamente o IVG, evidenciando seus potenciais como promotoras do crescimento vegetal.Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2020-10-21T13:08:25Z No. of bitstreams: 1 2010 - Karin da Silva Gon?alves.pdf: 648168 bytes, checksum: 6f672e4b5ef89431afd3b3c2b70a729d (MD5)Made available in DSpace on 2020-10-21T13:08:25Z (GMT). No. of bitstreams: 1 2010 - Karin da Silva Gon?alves.pdf: 648168 bytes, checksum: 6f672e4b5ef89431afd3b3c2b70a729d (MD5) Previous issue date: 2010-11-26Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil.application/pdfhttps://tede.ufrrj.br/retrieve/62614/2010%20-%20Karin%20da%20Silva%20Gon%c3%a7alves.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em FitotecniaUFRRJBrasilInstituto de AgronomiaALVES, G. C. Efeito da Inocula??o de Bact?rias dos G?neros Herbaspirillum e Burkholderia na Cultura do Milho. Rio de Janeiro: UFRRJ, 2007. 53 p. 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Proposal of Burkholderia gen. nov. and transfer of seven species of the genus Pseudomonas homology group II to the new genus, whith the type species Burkholderia cepacia (Palleroni and Holmes 1981) comb. nov. Microbiology and Immunology, v.36, p. 1251-1275, 1992. YANG, J.; KLOEPPER, J.W.; Ryu C. Rhizosphere bacteria help plants tolerate abiotic stress. Trends in Plant Science, vol.14 n.1, 2008. ZHANG, H.; KIM, M.; SUN, Y.; DOWD, S.E.; SHI, H.; PAR?, P.W. Soil bacteria confer plant salt tolerance by tissue-specific regulation of the sodium transporter HKT1, Mol. 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dc.title.por.fl_str_mv Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
dc.title.alternative.eng.fl_str_mv Endophytic bacteria as mitigators of osmotic stress in tomato
title Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
spellingShingle Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
Gon?alves, Karin da Silva
Acinetobacter
Burkholderia
estresse h?drico
promo??o de crescimento
Acinetobacter
Burkholderia
growth promotion
water stress
Agronomia
title_short Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
title_full Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
title_fullStr Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
title_full_unstemmed Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
title_sort Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros
author Gon?alves, Karin da Silva
author_facet Gon?alves, Karin da Silva
author_role author
dc.contributor.advisor1.fl_str_mv Medici, Leonardo Oliveira
dc.contributor.advisor1ID.fl_str_mv 001.234.037-58
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/7750014045851333
dc.contributor.referee1.fl_str_mv Araujo, Jo?o Sebasti?o de Paula
dc.contributor.referee2.fl_str_mv Olivares, F?bio Lopes
dc.contributor.authorID.fl_str_mv 610.148.851-91
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/7130572064881578
dc.contributor.author.fl_str_mv Gon?alves, Karin da Silva
contributor_str_mv Medici, Leonardo Oliveira
Araujo, Jo?o Sebasti?o de Paula
Olivares, F?bio Lopes
dc.subject.por.fl_str_mv Acinetobacter
Burkholderia
estresse h?drico
promo??o de crescimento
topic Acinetobacter
Burkholderia
estresse h?drico
promo??o de crescimento
Acinetobacter
Burkholderia
growth promotion
water stress
Agronomia
dc.subject.eng.fl_str_mv Acinetobacter
Burkholderia
growth promotion
water stress
dc.subject.cnpq.fl_str_mv Agronomia
description This work was accomplished at the Laboratory of Diagnosis of Diseases of the Institute of Agronomy (Campus Horticultura) together with the Laboratory of Epidemiology and Pathology of Seeds of the Department of Fitotecnia of the Institute of Agronomy of UFRuralRJ, in the municipal of Serop?dica / RJ, in the period of 2008-2010.The objective was to test the efficiency of four strains of endophytic bacteria to promote growth, vigor and mitigation of water stress in tomato variety Santa Clara. Seeds of tomato were inoculated with Herbaspirillum seropedicae, obtained from roots of sugar cane, Burkholderia silvatlanta, obtained from roots of pineapple, Acinetobacter sp., obtained from tomato seeds and another bacterium still unidentified also obtained from tomato seeds. The inoculated seeds were used in two experiments. To evaluate the stress mitigation, three-days-old seedlings were transferred to plastic boxes with the hidric potentials of 0.0MPa or -0.53MPa, obtained with Polyethylene Glycol (PEG 6000), at concentrations of 0,0g L-1 and 210g L-1, respectively. To evaluate the growth promotion, the seeds were germinated in plastic boxes without PEG. The trait evaluate in the mitigation experiment was the root lenght. The growth promotion was evaluated by Germination Speed Index (GSI) and germination rate. The mitigation of osmotic stress effect was promoted by inoculation of seeds with Acinetobacter sp. All of the inoculated bacteria increased GSI of the seeds significantly, evidencing their potential as plant growth-promoters.
publishDate 2010
dc.date.issued.fl_str_mv 2010-11-26
dc.date.accessioned.fl_str_mv 2020-10-21T13:08:25Z
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 GON?ALVES, Karin da Silva. Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros. 2010. 42 f. Disserta??o (Mestrado em Fitotecnia) - Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, 2010.
dc.identifier.uri.fl_str_mv https://tede.ufrrj.br/jspui/handle/jspui/4050
identifier_str_mv GON?ALVES, Karin da Silva. Bact?rias endof?ticas como mitigadoras do estresse osm?tico em tomateiros. 2010. 42 f. Disserta??o (Mestrado em Fitotecnia) - Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, 2010.
url https://tede.ufrrj.br/jspui/handle/jspui/4050
dc.language.iso.fl_str_mv por
language por
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