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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
28/06/1994 |
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Data da última atualização: |
27/05/2019 |
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Autoria: |
HUNGRIA, M.; FRANCO, A. A. |
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Afiliação: |
EMBRAPA-CNPSo, Cx. Postal 1061, CEP 86001-970, Londrina, PR, Brasil. |
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Título: |
Effect of high temperature on nodulation and nitrogen fixation by Phaseolus vulgaris L. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Plant and Soil, v.149, p.95-102, 1993. |
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Idioma: |
Inglês |
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Conteúdo: |
Screening of Rhizobium leguminosarum bv. phaseoli strains showed some that were able to nodulate common beans (Phaseolus vulgaris L.) at high temperatures (35 and 38o.C/8h/day). The nodulation ability was not related to the capability to grow or produce melanin-like pigment in culture media at high temperatures. However, nodules formed at high temperatures were ineffective and plants did not accumulate N in shoots. Two thermal shocks of 40oC/8h/day at flowering time drastically decreased nitrogenase acitivity and nodule relative efficiency of plants otherwise grown at 28o.C. Recovery of nitrogenase activity began only after seven days, when new nodules formed: total incorporation of N in tops did not recover for 2 weeks. Non-inoculated beans receiving mineralN were not affected by the thermal shock, and when growing continuously at 35 or 38o.C had total N accumulated in shoots reduced by only 18%. |
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Palavras-Chave: |
Bean; Brasil; Common bean; Nodule senescence. |
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Thesagro: |
Feijão; Fixação de Nitrogênio; Nitrogenase; Nodulação; Phaseolus Vulgaris; Rhizobium. |
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Thesaurus Nal: |
Brazil; nitrogen fixation; nodulation. |
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Categoria do assunto: |
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Marc: |
LEADER 01659naa a2200289 a 4500
001 1457765
005 2019-05-27
008 1993 bl --- 0-- u #d
100 1 $aHUNGRIA, M.
245 $aEffect of high temperature on nodulation and nitrogen fixation by Phaseolus vulgaris L.
260 $c1993
520 $aScreening of Rhizobium leguminosarum bv. phaseoli strains showed some that were able to nodulate common beans (Phaseolus vulgaris L.) at high temperatures (35 and 38o.C/8h/day). The nodulation ability was not related to the capability to grow or produce melanin-like pigment in culture media at high temperatures. However, nodules formed at high temperatures were ineffective and plants did not accumulate N in shoots. Two thermal shocks of 40oC/8h/day at flowering time drastically decreased nitrogenase acitivity and nodule relative efficiency of plants otherwise grown at 28o.C. Recovery of nitrogenase activity began only after seven days, when new nodules formed: total incorporation of N in tops did not recover for 2 weeks. Non-inoculated beans receiving mineralN were not affected by the thermal shock, and when growing continuously at 35 or 38o.C had total N accumulated in shoots reduced by only 18%.
650 $aBrazil
650 $anitrogen fixation
650 $anodulation
650 $aFeijão
650 $aFixação de Nitrogênio
650 $aNitrogenase
650 $aNodulação
650 $aPhaseolus Vulgaris
650 $aRhizobium
653 $aBean
653 $aBrasil
653 $aCommon bean
653 $aNodule senescence
700 1 $aFRANCO, A. A.
773 $tPlant and Soil$gv.149, p.95-102, 1993.
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Registro original: |
Embrapa Soja (CNPSO) |
