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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
15/03/1999 |
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Data da última atualização: |
15/03/1999 |
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Autoria: |
ARAUJO, J. L. S.; RUMJANEK, Norma G.; MARGIS-PINHEIRO, M. |
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Título: |
Expression of heat shock proteins in bean plants (Phaseolus vulgaris L.) submitted to high temperatures. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUIMICA E BIOLOGIA MOLECULAR, 26., maio 1997, Caxambu. Resumos... Caxambu: Sociedade Brasileira de Bioquimica e Biologia Molecular, 1997. p.34. |
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Idioma: |
Inglês |
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Conteúdo: |
Leguminous plants interact with rhizobia to form special structures (nodules) where N2 fixation occurs. High temperature stress is a major factor limiting nitrogen fixation in the tropical areas. Although several heat-tolerant Rhizobium strains capable of nodulating bean have been isolated, common bean plants are considered to be sensitive. Consequently, the selection of plant varieties adapted to high temperatures constitutes an important strategy to improve nitrogen fixation in tropical areas. When subjected to high temperatures, a wide variety of species induce synthesis of a set of proteins known as heat shock proteins (HSP). Several studies have demonstrated that HSPs are related to the acquisition of thermal tolerance. In plants, the low molecular weight HSPs constitute the most abundant and diverse group of proteins synthesized in response to heat stress. The aim of this study was investigate the expression pattern in different varieties of bean plants submitted to high temperatures. We started this analysis by determining the conditions for mRNA HSP induction in common bean. Cloned cDNAs of wheat (WHSP 16,9; class I) and of Zea mays (ZMHSP 27; class II) were used as probes. Bean plants (cv IPA 7) growing at 28 graus C were submitted to several heat shock conditions and the analysis of HSP expression were performed using northern-blots. Cowpea and maize were included as controls. The monocotyledon probes used were capable of hydridizing under several heat shock conditions, but at different levels... MenosLeguminous plants interact with rhizobia to form special structures (nodules) where N2 fixation occurs. High temperature stress is a major factor limiting nitrogen fixation in the tropical areas. Although several heat-tolerant Rhizobium strains capable of nodulating bean have been isolated, common bean plants are considered to be sensitive. Consequently, the selection of plant varieties adapted to high temperatures constitutes an important strategy to improve nitrogen fixation in tropical areas. When subjected to high temperatures, a wide variety of species induce synthesis of a set of proteins known as heat shock proteins (HSP). Several studies have demonstrated that HSPs are related to the acquisition of thermal tolerance. In plants, the low molecular weight HSPs constitute the most abundant and diverse group of proteins synthesized in response to heat stress. The aim of this study was investigate the expression pattern in different varieties of bean plants submitted to high temperatures. We started this analysis by determining the conditions for mRNA HSP induction in common bean. Cloned cDNAs of wheat (WHSP 16,9; class I) and of Zea mays (ZMHSP 27; class II) were used as probes. Bean plants (cv IPA 7) growing at 28 graus C were submitted to several heat shock conditions and the analysis of HSP expression were performed using northern-blots. Cowpea and maize were included as controls. The monocotyledon probes used were capable of hydridizing under several heat shock c... Mostrar Tudo |
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Palavras-Chave: |
BNF; FBN; Fixacao biologica de nitrogenio; Nitrogen fixing bacteria. |
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Thesagro: |
Calor; Feijão; Nódulo; Phaseolus Vulgaris; Proteína; Rhizobium; Stress; Temperatura. |
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Thesaurus NAL: |
heat stress; kidney beans; proteins; root nodules. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02577naa a2200337 a 4500
001 1620981
005 1999-03-15
008 1997 bl uuuu u00u1 u #d
100 1 $aARAUJO, J. L. S.
245 $aExpression of heat shock proteins in bean plants (Phaseolus vulgaris L.) submitted to high temperatures.
260 $c1997
520 $aLeguminous plants interact with rhizobia to form special structures (nodules) where N2 fixation occurs. High temperature stress is a major factor limiting nitrogen fixation in the tropical areas. Although several heat-tolerant Rhizobium strains capable of nodulating bean have been isolated, common bean plants are considered to be sensitive. Consequently, the selection of plant varieties adapted to high temperatures constitutes an important strategy to improve nitrogen fixation in tropical areas. When subjected to high temperatures, a wide variety of species induce synthesis of a set of proteins known as heat shock proteins (HSP). Several studies have demonstrated that HSPs are related to the acquisition of thermal tolerance. In plants, the low molecular weight HSPs constitute the most abundant and diverse group of proteins synthesized in response to heat stress. The aim of this study was investigate the expression pattern in different varieties of bean plants submitted to high temperatures. We started this analysis by determining the conditions for mRNA HSP induction in common bean. Cloned cDNAs of wheat (WHSP 16,9; class I) and of Zea mays (ZMHSP 27; class II) were used as probes. Bean plants (cv IPA 7) growing at 28 graus C were submitted to several heat shock conditions and the analysis of HSP expression were performed using northern-blots. Cowpea and maize were included as controls. The monocotyledon probes used were capable of hydridizing under several heat shock conditions, but at different levels...
650 $aheat stress
650 $akidney beans
650 $aproteins
650 $aroot nodules
650 $aCalor
650 $aFeijão
650 $aNódulo
650 $aPhaseolus Vulgaris
650 $aProteína
650 $aRhizobium
650 $aStress
650 $aTemperatura
653 $aBNF
653 $aFBN
653 $aFixacao biologica de nitrogenio
653 $aNitrogen fixing bacteria
700 1 $aRUMJANEK, Norma G.
700 1 $aMARGIS-PINHEIRO, M.
773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUIMICA E BIOLOGIA MOLECULAR, 26., maio 1997, Caxambu. Resumos... Caxambu: Sociedade Brasileira de Bioquimica e Biologia Molecular, 1997. p.34.
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