Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil

Detalhes bibliográficos
Autor(a) principal: Fernandes, Marcelo Ferreira
Data de Publicação: 2003
Outros Autores: Fernandes, Roberta Pereira Miranda, Hungria, Mariangela
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6643
Resumo: The inoculation of rhizobial strains in jackbean (Canavalia ensiformis), cowpea (Vigna unguiculata) and pigeonpea (Cajanus cajan), recommended for other regions of Brazil, has not resulted in increases of biological nitrogen fixation rates and plant growth in soils of the coastal tableland of Sergipe (Brazilian Northeast). The objectives of this work were to evaluate the symbiotic effectiveness of indigenous rhizobia from that coastal tableland associated to these three legumes and their tolerance to stresses. Seventeen rhizobia strains were isolated and evaluated in a greenhouse. Four strains were selected for pigeonpea; seven for cowpea and three for jackbean. Nodules number and dry weight were related to shoot dry weight, leaf area and leaf N content, in all three legumes. The same strains were efficient for both cowpea and pigeonpea. Three pigeonpea (R35, R43 and R45) and two cowpea (R10 and R17) rhizobia were characterized in vitro and all showed tolerance to high levels of nalidix acid, chloramphenicol and tetracycline; however, they were sensitive to streptomycin and kanamycin. All strains were able to grow at 35ºC and, except for R17, were tolerant to aluminium (10 mg L-1).
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spelling Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; BrazilSeleção de rizóbios nativos para guandu, caupi e feijão-de-porco nos tabuleiros costeiros de SergipeCajanus cajan; Canavalia ensiformis; Vigna unguiculata; molecular biology; nitrogen fixationCajanus cajan; Canavalia ensiformis; Vigna unguiculata; biologia molecular; fixação de nitrogênioThe inoculation of rhizobial strains in jackbean (Canavalia ensiformis), cowpea (Vigna unguiculata) and pigeonpea (Cajanus cajan), recommended for other regions of Brazil, has not resulted in increases of biological nitrogen fixation rates and plant growth in soils of the coastal tableland of Sergipe (Brazilian Northeast). The objectives of this work were to evaluate the symbiotic effectiveness of indigenous rhizobia from that coastal tableland associated to these three legumes and their tolerance to stresses. Seventeen rhizobia strains were isolated and evaluated in a greenhouse. Four strains were selected for pigeonpea; seven for cowpea and three for jackbean. Nodules number and dry weight were related to shoot dry weight, leaf area and leaf N content, in all three legumes. The same strains were efficient for both cowpea and pigeonpea. Three pigeonpea (R35, R43 and R45) and two cowpea (R10 and R17) rhizobia were characterized in vitro and all showed tolerance to high levels of nalidix acid, chloramphenicol and tetracycline; however, they were sensitive to streptomycin and kanamycin. All strains were able to grow at 35ºC and, except for R17, were tolerant to aluminium (10 mg L-1).A inoculação de estirpes de rizóbios em sementes de feijão-de-porco (Canavalia ensiformis), caupi (Vigna unguiculata) e guandu (Cajanus cajan), recomendadas para outras regiões do País, não tem resultado em incrementos nas taxas de fixação biológica de N2 nem no crescimento dessas leguminosas em solos dos tabuleiros costeiros de Sergipe. Os objetivos deste trabalho foram avaliar a eficiência simbiótica de rizóbios nativos dos tabuleiros costeiros associados a essas leguminosas e a tolerância deles a estresses. Das 17 estirpes de rizóbios isoladas e analisadas em casa de vegetação, quatro foram selecionadas para o guandu, sete para o caupi e três para o feijão-de-porco. O número e a massa de nódulos secos por planta correlacionaram-se com a massa da parte aérea seca, a área foliar e o N total acumulado nas folhas das três leguminosas. Os mesmos rizóbios foram eficientes para o caupi e para o guandu. Três estirpes do guandu (R35, R43 e R45) e duas do caupi (R10 e R17) foram caracterizadas in vitro e todas apresentaram tolerância às concentrações elevadas de ácido nalidíxico, cloranfenicol e tetraciclina, porém, foram sensíveis à estreptomicina e à kanamicina. Todas as estirpes cresceram a 35ºC e, exceto a R17, toleraram o alumínio (10 mg L-1).Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFernandes, Marcelo FerreiraFernandes, Roberta Pereira MirandaHungria, Mariangela2003-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6643Pesquisa Agropecuaria Brasileira; v.38, n.7, jul. 2003; 835-842Pesquisa Agropecuária Brasileira; v.38, n.7, jul. 2003; 835-8421678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6643/3700info:eu-repo/semantics/openAccess2014-08-11T19:18:05Zoai:ojs.seer.sct.embrapa.br:article/6643Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-11T19:18:05Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
Seleção de rizóbios nativos para guandu, caupi e feijão-de-porco nos tabuleiros costeiros de Sergipe
title Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
spellingShingle Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
Fernandes, Marcelo Ferreira
Cajanus cajan; Canavalia ensiformis; Vigna unguiculata; molecular biology; nitrogen fixation
Cajanus cajan; Canavalia ensiformis; Vigna unguiculata; biologia molecular; fixação de nitrogênio
title_short Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
title_full Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
title_fullStr Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
title_full_unstemmed Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
title_sort Selection of indigenous rhizobia to the cowpea; pigeonpea and jackbean crops in the coastal tableland of Sergipe; Brazil
author Fernandes, Marcelo Ferreira
author_facet Fernandes, Marcelo Ferreira
Fernandes, Roberta Pereira Miranda
Hungria, Mariangela
author_role author
author2 Fernandes, Roberta Pereira Miranda
Hungria, Mariangela
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Fernandes, Marcelo Ferreira
Fernandes, Roberta Pereira Miranda
Hungria, Mariangela
dc.subject.por.fl_str_mv Cajanus cajan; Canavalia ensiformis; Vigna unguiculata; molecular biology; nitrogen fixation
Cajanus cajan; Canavalia ensiformis; Vigna unguiculata; biologia molecular; fixação de nitrogênio
topic Cajanus cajan; Canavalia ensiformis; Vigna unguiculata; molecular biology; nitrogen fixation
Cajanus cajan; Canavalia ensiformis; Vigna unguiculata; biologia molecular; fixação de nitrogênio
description The inoculation of rhizobial strains in jackbean (Canavalia ensiformis), cowpea (Vigna unguiculata) and pigeonpea (Cajanus cajan), recommended for other regions of Brazil, has not resulted in increases of biological nitrogen fixation rates and plant growth in soils of the coastal tableland of Sergipe (Brazilian Northeast). The objectives of this work were to evaluate the symbiotic effectiveness of indigenous rhizobia from that coastal tableland associated to these three legumes and their tolerance to stresses. Seventeen rhizobia strains were isolated and evaluated in a greenhouse. Four strains were selected for pigeonpea; seven for cowpea and three for jackbean. Nodules number and dry weight were related to shoot dry weight, leaf area and leaf N content, in all three legumes. The same strains were efficient for both cowpea and pigeonpea. Three pigeonpea (R35, R43 and R45) and two cowpea (R10 and R17) rhizobia were characterized in vitro and all showed tolerance to high levels of nalidix acid, chloramphenicol and tetracycline; however, they were sensitive to streptomycin and kanamycin. All strains were able to grow at 35ºC and, except for R17, were tolerant to aluminium (10 mg L-1).
publishDate 2003
dc.date.none.fl_str_mv 2003-07-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6643
url https://seer.sct.embrapa.br/index.php/pab/article/view/6643
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6643/3700
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.38, n.7, jul. 2003; 835-842
Pesquisa Agropecuária Brasileira; v.38, n.7, jul. 2003; 835-842
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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