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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
11/04/1997 |
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Data da última atualização: |
11/04/1997 |
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Autoria: |
ORTIZ, A.; MARTINEZ, V.; CERDA, A. |
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Título: |
Effects of osmotic shock and calcium on growth and solute composition of Phaseolus vulgaris plants. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Physiologia Plantarum, v. 91 n. 3, p. 468-476, 1994. |
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Idioma: |
Inglês |
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Conteúdo: |
Identification of the primary response to salinity is of great importance in order to develop salt tolerant species. In this work the effect of a NaCl osmotic shock on leaf elongation of Phaseolus vulgaris L. cv. Contender has been studied. After establishing an osmotic shock by adding NaCl to the root medium three consecutive events could be distinguished. First, there was a sudden interruption of leaf growth, followed by a period of retardation of growth, to reach the steady-state growth rate. High calcium (5 mM) in the growth medium diminished the initial loss of water in the roots and kept the water content higher upon restoration of leaf growth, as compared to low calcium levels (0,5 mM). During the low calcium treatment, leaf malate started to increase already 3 h after the start of the osmotic treatment, showing a maximum concentration at around 9 h, then decreasing and approaching the value of control plants. At high calcium, malate concentration remained unchanged with time. Plants grown in the presence of low calcium showed an increase in the concentration of total amino acids upon NaCl shock. It is estimated that organic metabolites, in confined to the cell cytoplasm, contribute significantly to the osmotic adjustment, together with inorganic ions. Our results support the hypothesis that water shortage in the roots is responsible for the initial inhibition of leaf elongation. |
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Palavras-Chave: |
Bean; GLC; Mineral nutrition; Nutricao mineral; Organic solutes. |
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Thesagro: |
Feijão; Osmose; Phaseolus Vulgaris; Salinidade. |
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Thesaurus Nal: |
salinity. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02112naa a2200265 a 4500
001 1053233
005 1997-04-11
008 1994 bl --- 0-- u #d
100 1 $aORTIZ, A.
245 $aEffects of osmotic shock and calcium on growth and solute composition of Phaseolus vulgaris plants.
260 $c1994
520 $aIdentification of the primary response to salinity is of great importance in order to develop salt tolerant species. In this work the effect of a NaCl osmotic shock on leaf elongation of Phaseolus vulgaris L. cv. Contender has been studied. After establishing an osmotic shock by adding NaCl to the root medium three consecutive events could be distinguished. First, there was a sudden interruption of leaf growth, followed by a period of retardation of growth, to reach the steady-state growth rate. High calcium (5 mM) in the growth medium diminished the initial loss of water in the roots and kept the water content higher upon restoration of leaf growth, as compared to low calcium levels (0,5 mM). During the low calcium treatment, leaf malate started to increase already 3 h after the start of the osmotic treatment, showing a maximum concentration at around 9 h, then decreasing and approaching the value of control plants. At high calcium, malate concentration remained unchanged with time. Plants grown in the presence of low calcium showed an increase in the concentration of total amino acids upon NaCl shock. It is estimated that organic metabolites, in confined to the cell cytoplasm, contribute significantly to the osmotic adjustment, together with inorganic ions. Our results support the hypothesis that water shortage in the roots is responsible for the initial inhibition of leaf elongation.
650 $asalinity
650 $aFeijão
650 $aOsmose
650 $aPhaseolus Vulgaris
650 $aSalinidade
653 $aBean
653 $aGLC
653 $aMineral nutrition
653 $aNutricao mineral
653 $aOrganic solutes
700 1 $aMARTINEZ, V.
700 1 $aCERDA, A.
773 $tPhysiologia Plantarum$gv. 91 n. 3, p. 468-476, 1994.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 14.689 | |
| 14401. |  | FARIAS, J. R. B.; NEUMAIER, N.; NEPOMUCENO, A. L. Soja. In: MONTEIRO, J. E. B. A. (Org.) Agrometeorologia dos cultivos: o fator meteorológico na produção agrícola. Brasília, DF: INMET, 2009. p. 261-277.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Soja. |
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| 14406. | | GAZZONI, D. L. Soja y abejas. Brasília, DF: Embrapa, 2019. 150 p. Publicado anteriormente como: Soybean and bees.
Publicado anteriormente como: Soja e abelhas.| Tipo: Autoria/Organização/Edição de Livros |
| Biblioteca(s): Embrapa Soja. |
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| 14408. | | THIAGO, L. R. L. de S.; SILVA, J. M. da; FEIJO, G. L. D.; COSTA, F. P.; PORTO, J. C.; KICHEL, A. N.; MARTINEZ, R. E. G. Substituicao do milho pelo sorgo ou casca de soja em dietas para a engorda de bovinos em confinamento. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Vicosa. Resumos dos trabalhos apresentados. Anais. Vicosa: SBZ, 2000. p.484. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 14409. | | Sistemas de produção soja e trigo. Ponta Porã: EMBRAPA, 1975. 28p. (Circular, 45).| Biblioteca(s): Embrapa Agropecuária Oeste; Embrapa Meio-Norte; Embrapa Unidades Centrais. |
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| 14413. | | SPEHAR, C. R.; SOUZA, P. I. de M. de; URBEN FILHO, G. Soybean in the Brazilian tropics. In: SOYBEAN IN THE TROPICS AND SUBTROPICAL CROPPING SYSTEMS PROCEEDINGS OF A SYMPOSIUM, 1983, Tsukuba, Japan. Shanhua, China: The Asian Vegetable Research and Development Center, 1986. p.145-150. Proceedings of International Symposium on Soybean, 1983, Tsukuba, Japan.| Biblioteca(s): Embrapa Cerrados. |
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| 14414. | | BOMFIM, M. A. D.; OLIVEIRA, L. S.; PEREIRA, M. S. C.; MAPURUNGA, P. A.; GOMES, G. M. F.; COSTA, H. H. A.; PEREIRA, L. P. da S. Soy, sunflower and palm kernel oils in dairy goat diets: performance and milk composition. In: INTERNATIONAL CONFERENCE ON GOATS, 9.; REUNIÓN NACIONAL SOBRE CAPRINOCULTURA, 23., 2008, Querétaro, México. Sustainable goat production: challenges and opportunities of small and large enterprises; proceedings. Querétaro: International Goat Association, 2008. p. 220. Abstract 306.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 14419. | | YORINORI, J. T.; KIIHL, R. A. de S.; ALMEIDA, L. A. de; HIROMOTO, D. M. Situacao das linhagens dos programas de melhoramento genetico de soja, em relacao a reacao ao cancro da haste em 1998. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 21., 1999, Dourados. Resumos... Dourados: Embrapa Agropecuaria Oeste / Londrina: Embrapa Soja, 1999. p.88. (Embrapa Agropecuaria Oeste. Documentos, 7; Embrapa Soja. Documentos, 134).| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 14.689 | |
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