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3. | | YEL, S-D.; JAN, F-J.; CHIANG, C-H.; DOONG, T-J.; CHEN, M-C.; CHUNG, P-H.; BAU, H-J. Complete nucleotide sequence and genetic organization of papaya ringspot virus RNA Journal of General Virology, v.73, p.2531-25541, 1992 Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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Registros recuperados : 3 | |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
22/02/2005 |
Data da última atualização: |
03/08/2009 |
Autoria: |
CALBO, A. G.; NERY, A. A.; HERRMANN, P. S. P. |
Título: |
Intracellular deformation in compressed organs. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Annals of Botany, London, v. 76, p. 365-370. Anais... London, 1995. |
Idioma: |
Inglês |
Conteúdo: |
lntercellular deforrnations, caused by increasing levels of compression applied by apressure chamber to an organ covered with a plastic sealant and evaluated according to the internal atmosphere removal rate, were observed in carrots (Daucus caro ta L. sativa), potatoes (Solanum tuberosum L.) and sweet-potatoes (Ipomoea batatas L. Lam). The maximum internal gas volume removed in these kinetic assays was close to the intercellular air volume (vg) measured by the pycnometric method. Presumably a compression larger than the average organ turgor was required to remove alI vg, and above this point the cells should become completely flattened against each other. The intercellular deforrnation caused by a compressing load, observed by constant pressure volumetry, induced a reduction in the endogenous O2 concentration at the stressed area, according to polarographic measurements. Cellular deforrnations and eventual vg flooding caused by water movement from ,the symplasm to the apoplasm of externally compressed organs were distinct from the usual pressure chamber assays, where alI cells are exposed to homogeneous gas pressurization, without the development offorces to cause large cellular deforrnation and intercellular flooding. These gas transport restrictions were suggested as potential causes for post harvest deterioration in fragile commodities subjected to compression. |
Palavras-Chave: |
Câmara de pressão; Compressão; Sucção; Sweet potato; Volumetria de gás. |
Thesagro: |
Batata; Cenoura; Daucus Carota; Ipomoea Batatas; Oxigênio; Porosidade; Solanum Tuberosum; Stress. |
Thesaurus NAL: |
turgor. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02182naa a2200313 a 4500 001 1028801 005 2009-08-03 008 1995 bl --- 0-- u #d 100 1 $aCALBO, A. G. 245 $aIntracellular deformation in compressed organs. 260 $c1995 520 $alntercellular deforrnations, caused by increasing levels of compression applied by apressure chamber to an organ covered with a plastic sealant and evaluated according to the internal atmosphere removal rate, were observed in carrots (Daucus caro ta L. sativa), potatoes (Solanum tuberosum L.) and sweet-potatoes (Ipomoea batatas L. Lam). The maximum internal gas volume removed in these kinetic assays was close to the intercellular air volume (vg) measured by the pycnometric method. Presumably a compression larger than the average organ turgor was required to remove alI vg, and above this point the cells should become completely flattened against each other. The intercellular deforrnation caused by a compressing load, observed by constant pressure volumetry, induced a reduction in the endogenous O2 concentration at the stressed area, according to polarographic measurements. Cellular deforrnations and eventual vg flooding caused by water movement from ,the symplasm to the apoplasm of externally compressed organs were distinct from the usual pressure chamber assays, where alI cells are exposed to homogeneous gas pressurization, without the development offorces to cause large cellular deforrnation and intercellular flooding. These gas transport restrictions were suggested as potential causes for post harvest deterioration in fragile commodities subjected to compression. 650 $aturgor 650 $aBatata 650 $aCenoura 650 $aDaucus Carota 650 $aIpomoea Batatas 650 $aOxigênio 650 $aPorosidade 650 $aSolanum Tuberosum 650 $aStress 653 $aCâmara de pressão 653 $aCompressão 653 $aSucção 653 $aSweet potato 653 $aVolumetria de gás 700 1 $aNERY, A. A. 700 1 $aHERRMANN, P. S. P. 773 $tAnnals of Botany, London$gv. 76, p. 365-370. Anais... London, 1995.
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