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Registro Completo |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
20/12/2010 |
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Data da última atualização: |
20/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, E. L. de; SOUZA, A. L. K. de; TIECHER, A.; GIRARDI, C. L.; NORA, L.; SILVA, J. A. da; ARGENTA, L. C.; ROMBALDI, C. V. |
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Afiliação: |
EDSON LUIZ DE SOUZA, EPAGRI; André Luiz Kulkamp de Souza, UFPEL; Aline Tiecher, UFPEL; CESAR LUIS GIRARDI, CNPUV; LEONARDO NORA, UFPEL; Jorge Adolfo da Silva, UFPEL; Luiz Carlos Argenta, EPAGRI; Cesar Valmor Rombaldi, UFPEL. |
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Título: |
Changes in enzymatic activity, accumulation of proteins and softening of persimmon (Diospyros kaki Thunb.) flesh as a function of pre-cooling acclimatization. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Scientia Horticulturae, v. 127, n. 3, p. 242-248, 2010. |
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DOI: |
10.1016/j.scienta.2010.09.025 |
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Idioma: |
Inglês |
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Conteúdo: |
One of the major causes of ?Fuyu? persimmon loss after cold storage (CS) is the breakdown of its flesh, which results in the production of a translucent fruit (a water-soaked fruit). It is believed that the cause of this disturbance is linked to disorganization of the cytoskelet and endomembrane system, which changes the synthesis and transport of proteins and metabolites, resulting in incomplete ripening. To test this hypothesis, ?Fuyu? persimmon was subjected to three different postharvest treatments (T): Control ? harvested and kept at 23±3 ◦C and relative humidity (RH) of 85±5% (room temperature, RT) for 12 days, T1 ? harvested and kept under cold storage (CS) (1±1 ◦C and RH of 85±5%) for 30 days followed by RT storage for 2 days, T2 ? kept under RT for 2 days (acclimatization) followed by CS for 30 days. Control and T2 resulted in fruit with decreased flesh firmness (FF), and increased soluble solids (SS) and ascorbic acid (AA) contents. In these fruit the activity of endo-1,4-ß-glucanase (endo-1,4-ß-gluc), pectin methylesterase (PME), polygalacturonase (PG) and ß-galactosidase (ß-gal) increased. T1 resulted in translucent fruit with decreased FF, without any enzymatic activity changes, probably due to the physical disruption of the cytoskeleton. Further, there was an increased content of proteins corresponding to expansins in fruit kept under Control and T2 conditions, which suggests that these conditions do contribute to the synthesis and/or transport of proteins involved in the process of solubilization of the cell wall. In these fruit, there was also a major accumulation of gene transcripts corresponding to heat shock proteins (HSPs) of organelles related to endomembrane, which suggests participation of these genes in the prevention of damage caused by cold conditions. These data proved the hypotheses that acclimatization contributes to the expression of HSPs, and synthesis and transportat of proteins involved in the solubilization of the cell wall. The expression of these genes results in the normal ripening of the persimmon, as confirmed by the evolution of ethylene production. MenosOne of the major causes of ?Fuyu? persimmon loss after cold storage (CS) is the breakdown of its flesh, which results in the production of a translucent fruit (a water-soaked fruit). It is believed that the cause of this disturbance is linked to disorganization of the cytoskelet and endomembrane system, which changes the synthesis and transport of proteins and metabolites, resulting in incomplete ripening. To test this hypothesis, ?Fuyu? persimmon was subjected to three different postharvest treatments (T): Control ? harvested and kept at 23±3 ◦C and relative humidity (RH) of 85±5% (room temperature, RT) for 12 days, T1 ? harvested and kept under cold storage (CS) (1±1 ◦C and RH of 85±5%) for 30 days followed by RT storage for 2 days, T2 ? kept under RT for 2 days (acclimatization) followed by CS for 30 days. Control and T2 resulted in fruit with decreased flesh firmness (FF), and increased soluble solids (SS) and ascorbic acid (AA) contents. In these fruit the activity of endo-1,4-ß-glucanase (endo-1,4-ß-gluc), pectin methylesterase (PME), polygalacturonase (PG) and ß-galactosidase (ß-gal) increased. T1 resulted in translucent fruit with decreased FF, without any enzymatic activity changes, probably due to the physical disruption of the cytoskeleton. Further, there was an increased content of proteins corresponding to expansins in fruit kept under Control and T2 conditions, which suggests that these conditions do contribute to the synthesis and/or transport of p... Mostrar Tudo |
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Palavras-Chave: |
Acúmulo de proteína. |
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Thesagro: |
Caqui; Conservação; Enzima; Fruticultura; Pós-colheita; Resfriamento; Textura. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/24366/1/girardi.pdf
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Marc: |
LEADER 03097naa a2200313 a 4500
001 1870536
005 2016-10-20
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1016/j.scienta.2010.09.025$2DOI
100 1 $aSOUZA, E. L. de
245 $aChanges in enzymatic activity, accumulation of proteins and softening of persimmon (Diospyros kaki Thunb.) flesh as a function of pre-cooling acclimatization.$h[electronic resource]
260 $c2010
520 $aOne of the major causes of ?Fuyu? persimmon loss after cold storage (CS) is the breakdown of its flesh, which results in the production of a translucent fruit (a water-soaked fruit). It is believed that the cause of this disturbance is linked to disorganization of the cytoskelet and endomembrane system, which changes the synthesis and transport of proteins and metabolites, resulting in incomplete ripening. To test this hypothesis, ?Fuyu? persimmon was subjected to three different postharvest treatments (T): Control ? harvested and kept at 23±3 ◦C and relative humidity (RH) of 85±5% (room temperature, RT) for 12 days, T1 ? harvested and kept under cold storage (CS) (1±1 ◦C and RH of 85±5%) for 30 days followed by RT storage for 2 days, T2 ? kept under RT for 2 days (acclimatization) followed by CS for 30 days. Control and T2 resulted in fruit with decreased flesh firmness (FF), and increased soluble solids (SS) and ascorbic acid (AA) contents. In these fruit the activity of endo-1,4-ß-glucanase (endo-1,4-ß-gluc), pectin methylesterase (PME), polygalacturonase (PG) and ß-galactosidase (ß-gal) increased. T1 resulted in translucent fruit with decreased FF, without any enzymatic activity changes, probably due to the physical disruption of the cytoskeleton. Further, there was an increased content of proteins corresponding to expansins in fruit kept under Control and T2 conditions, which suggests that these conditions do contribute to the synthesis and/or transport of proteins involved in the process of solubilization of the cell wall. In these fruit, there was also a major accumulation of gene transcripts corresponding to heat shock proteins (HSPs) of organelles related to endomembrane, which suggests participation of these genes in the prevention of damage caused by cold conditions. These data proved the hypotheses that acclimatization contributes to the expression of HSPs, and synthesis and transportat of proteins involved in the solubilization of the cell wall. The expression of these genes results in the normal ripening of the persimmon, as confirmed by the evolution of ethylene production.
650 $aCaqui
650 $aConservação
650 $aEnzima
650 $aFruticultura
650 $aPós-colheita
650 $aResfriamento
650 $aTextura
653 $aAcúmulo de proteína
700 1 $aSOUZA, A. L. K. de
700 1 $aTIECHER, A.
700 1 $aGIRARDI, C. L.
700 1 $aNORA, L.
700 1 $aSILVA, J. A. da
700 1 $aARGENTA, L. C.
700 1 $aROMBALDI, C. V.
773 $tScientia Horticulturae$gv. 127, n. 3, p. 242-248, 2010.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
15/10/2002 |
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Data da última atualização: |
15/10/2002 |
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Autoria: |
ALMEIDA, S. P. de. |
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Título: |
Frutas nativas do cerrado brasileiro: aproveitamento alimentar. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE BOTANICA, 51., Brasilia, DF. Resumos. Brasilia: Sociedade Botanica do Brasil, 2000. |
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Páginas: |
p. 335. |
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Idioma: |
Português |
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Palavras-Chave: |
Baru; Cajuzinho; Dipterya alata; Fruta nativa; Gueroba; Hymenaea stignocarpa; Syagrus oleracea. |
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Thesagro: |
Alimentação; Annona Crassiflora; Araticum; Buriti; Cagaita; Cerrado; Eugenia Dysenterica; Jatobá. |
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Thesaurus NAL: |
Anacardium; foods; fruits; Mauritia flexuosa. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00935naa a2200349 a 4500
001 1565566
005 2002-10-15
008 2000 bl uuuu u00u1 u #d
100 1 $aALMEIDA, S. P. de
245 $aFrutas nativas do cerrado brasileiro$baproveitamento alimentar.
260 $c2000
300 $ap. 335.
650 $aAnacardium
650 $afoods
650 $afruits
650 $aMauritia flexuosa
650 $aAlimentação
650 $aAnnona Crassiflora
650 $aAraticum
650 $aBuriti
650 $aCagaita
650 $aCerrado
650 $aEugenia Dysenterica
650 $aJatobá
653 $aBaru
653 $aCajuzinho
653 $aDipterya alata
653 $aFruta nativa
653 $aGueroba
653 $aHymenaea stignocarpa
653 $aSyagrus oleracea
773 $tIn: CONGRESSO NACIONAL DE BOTANICA, 51., Brasilia, DF. Resumos. Brasilia: Sociedade Botanica do Brasil, 2000.
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