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 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
06/06/2013 |
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Autoria: |
DHINDSA, R. S.; BEWLEY, J. D. |
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Título: |
Water stress and protein synthesis. V. Protein synthesis, protein stability, and membrane permeability in a drought-sensitive and a drought-tolerant moss. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Plant Physiology, v. 59, n. 2, p. 295-300, 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects have been studied of water stress and desiccation on protein synthesis in the drought-tolerant moss Tortula ruralis and the drought-sensitive moss Hygrohypnum luridum. At any particular level of steady state water stress, the inhibition of protein synthesis was greater in H. luridum than in T. ruralis. Water stress-induced changes in the patern of protein synthesis, as determined by the double label ratio technique, were minor in T. ruralis, but major in H. luridum. Proteins of both mosses were found to be stable during desiccation and subsequent rehydration. Changes in membrane permeability, as indicated by the leakage of amino acid, were observed during rehydration of desiccated moss and were dependent on the rate of desiccation. The leakage was small and reversible in T. ruralis but large and irreversible in H. luridum. Although H. luridum failed to recover from complete desiccation (80% loss in fresh weight), it was able to recover fully from steady state stress under conditions where a maximum loss of 55% in fresh weight was recorded. |
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Palavras-Chave: |
Tolerância a sêca. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01560naa a2200145 a 4500
001 1828093
005 2013-06-06
008 1977 bl --- 0-- u #d
100 1 $aDHINDSA, R. S.
245 $aWater stress and protein synthesis. V. Protein synthesis, protein stability, and membrane permeability in a drought-sensitive and a drought-tolerant moss.
260 $c1977
520 $aThe effects have been studied of water stress and desiccation on protein synthesis in the drought-tolerant moss Tortula ruralis and the drought-sensitive moss Hygrohypnum luridum. At any particular level of steady state water stress, the inhibition of protein synthesis was greater in H. luridum than in T. ruralis. Water stress-induced changes in the patern of protein synthesis, as determined by the double label ratio technique, were minor in T. ruralis, but major in H. luridum. Proteins of both mosses were found to be stable during desiccation and subsequent rehydration. Changes in membrane permeability, as indicated by the leakage of amino acid, were observed during rehydration of desiccated moss and were dependent on the rate of desiccation. The leakage was small and reversible in T. ruralis but large and irreversible in H. luridum. Although H. luridum failed to recover from complete desiccation (80% loss in fresh weight), it was able to recover fully from steady state stress under conditions where a maximum loss of 55% in fresh weight was recorded.
653 $aTolerância a sêca
700 1 $aBEWLEY, J. D.
773 $tPlant Physiology$gv. 59, n. 2, p. 295-300, 1977.
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Embrapa Trigo (CNPT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
07/02/2014 |
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Data da última atualização: |
07/02/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ANDRADE, L. R. M. de; WATTEAU, F.; BARROS, L. M. G. |
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Afiliação: |
LEIDE ROVENIA MIRANDA DE ANDRA, CPAC; FRANÇOISE WATTEAU, INRA; LEILA MARIA GOMES BARROS, CENARGEN. |
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Título: |
Celular distribution of aluminium and other elements in leaves of native plant species of Brazilian Cerrados. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: MEETING ON TENTH KEELE ALUMINIUM, 2013, Winchester. Illuminating and elucidating aluminium's exposome: from geochemistry to neurochemistry, from microbe to man: book of abstracts. Winchester: Keele University, 2013. |
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Páginas: |
p. 34 |
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Idioma: |
Português |
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Palavras-Chave: |
Distribuição celular. |
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Thesagro: |
Alumínio; Cerrado; Planta; Vegetação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00765naa a2200205 a 4500
001 1979086
005 2014-02-07
008 2013 bl --- 0-- u #d
100 1 $aANDRADE, L. R. M. de
245 $aCelular distribution of aluminium and other elements in leaves of native plant species of Brazilian Cerrados.
260 $c2013
300 $ap. 34
650 $aAlumínio
650 $aCerrado
650 $aPlanta
650 $aVegetação
653 $aDistribuição celular
700 1 $aWATTEAU, F.
700 1 $aBARROS, L. M. G.
773 $tIn: MEETING ON TENTH KEELE ALUMINIUM, 2013, Winchester. Illuminating and elucidating aluminium's exposome: from geochemistry to neurochemistry, from microbe to man: book of abstracts. Winchester: Keele University, 2013.
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