| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
14/06/2019 |
|
Data da última atualização: |
02/12/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
DANTAS, B. F.; MATIAS, J. R.; LOPES. A. P.; ARAGÃO, C. A. |
|
Afiliação: |
BARBARA FRANCA DANTAS, CPATSA; JANETE RODRIGUES MATIAS; ARMANDO PEREIRA LOPES; CARLOS ALBERTO ARAGÃO. |
|
Título: |
Physiological changes in seeds and seedlings of pumpkins submitted to salt stress. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Bioscience Journal, Uberlândia, v. 35, n. 3, p. 763-774, 2019. |
|
DOI: |
10.14393/BJ-v35n3a2019-41887 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Salinity is one of the most limiting environmental factors for plant growth in semi-arid regions.Excessofsalts reduces water potential, causes physiological drought and can influence germination and initial growth of plants. The objective of this work was to study physiological and metabolic changes in seeds and seedlings of pumpkin (Cucurbita pepo cultivars Caserta and Redonda and C. maxima cv. Coroa)in a saline condition of salt stress. Thus, we it was quantified germination parameters; seedlings growth; seeds and seedlings respiration; degradation of total soluble sugars, reducing sugars and total proteins in cotyledons and the activity ascorbate peroxidase (APX), glutathione-S-transferase (GST) and catalase (CAT) during germination and initial growth of the pumpkin species studied in saline conditions. The experimental design was totally randomized in a factorial scheme 6x3, with six electrical conductivities (0; 2; 4; 6; 8 e 10 dS.m-1) and three cultivars (Redonda, Caserta and Coroa). Salinity did not influence the rate of seed respiration during the germination, although seedlings respiration decreased, as well as its vigour. Total sugars were degraded, while there was accumulation of reducing sugars and proteins in cotyledons of germinating seeds in salt solutions. Increased electrical conductivity reduced APX activity in the embryo and CAT in cotyledons, but did not influence GST. Pumpkin seedlings showed low tolerance to salt stress |
|
Palavras-Chave: |
Estresse salino. |
|
Thesagro: |
Abóbora; Condutividade Eletrica; Cucúrbita Máxima; Cucúrbita Pepo; Cucurbitaceae; Hortaliça Cucurbitácea; Salinidade; Semente. |
|
Thesaurus Nal: |
Cucurbita; Pumpkins. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198566/1/Dantas-et-al-2019-Bioscience-J.pdf
|
|
Marc: |
LEADER 02333naa a2200301 a 4500
001 2109869
005 2019-12-02
008 2019 bl uuuu u00u1 u #d
024 7 $a10.14393/BJ-v35n3a2019-41887$2DOI
100 1 $aDANTAS, B. F.
245 $aPhysiological changes in seeds and seedlings of pumpkins submitted to salt stress.$h[electronic resource]
260 $c2019
520 $aSalinity is one of the most limiting environmental factors for plant growth in semi-arid regions.Excessofsalts reduces water potential, causes physiological drought and can influence germination and initial growth of plants. The objective of this work was to study physiological and metabolic changes in seeds and seedlings of pumpkin (Cucurbita pepo cultivars Caserta and Redonda and C. maxima cv. Coroa)in a saline condition of salt stress. Thus, we it was quantified germination parameters; seedlings growth; seeds and seedlings respiration; degradation of total soluble sugars, reducing sugars and total proteins in cotyledons and the activity ascorbate peroxidase (APX), glutathione-S-transferase (GST) and catalase (CAT) during germination and initial growth of the pumpkin species studied in saline conditions. The experimental design was totally randomized in a factorial scheme 6x3, with six electrical conductivities (0; 2; 4; 6; 8 e 10 dS.m-1) and three cultivars (Redonda, Caserta and Coroa). Salinity did not influence the rate of seed respiration during the germination, although seedlings respiration decreased, as well as its vigour. Total sugars were degraded, while there was accumulation of reducing sugars and proteins in cotyledons of germinating seeds in salt solutions. Increased electrical conductivity reduced APX activity in the embryo and CAT in cotyledons, but did not influence GST. Pumpkin seedlings showed low tolerance to salt stress
650 $aCucurbita
650 $aPumpkins
650 $aAbóbora
650 $aCondutividade Eletrica
650 $aCucúrbita Máxima
650 $aCucúrbita Pepo
650 $aCucurbitaceae
650 $aHortaliça Cucurbitácea
650 $aSalinidade
650 $aSemente
653 $aEstresse salino
700 1 $aMATIAS, J. R.
700 1 $aLOPES. A. P.
700 1 $aARAGÃO, C. A.
773 $tBioscience Journal, Uberlândia$gv. 35, n. 3, p. 763-774, 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
26/11/2019 |
|
Data da última atualização: |
08/01/2020 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
SAVAREZ, T.; SILVA, L. O. G. da; SILVA, M. J.; SCALOPPI JR. E. J.; GONÇALVES, P. S.; MARTINS, M. A. |
|
Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
|
Título: |
Monitoramento das propriedades tecnológicas da borracha natural dos clones de seringueira RRIM 710, RRIM 728, RRIM 729 E RRIM 806 de janeiro a junho de 2019. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 4., 2019, São Carlos, SP. Ciência, inovação e mercado: anais. São Carlos, SP: Embrapa Instrumentação, 2019. Editores: Paulino Ribeiro Villas-Boas, Maria Alice Martins, Débora Marcondes Bastos Pereira Milori, Ladislau Martin Neto. SIAGRO 2019. |
|
Páginas: |
466/470 |
|
ISSN: |
2358-9132 |
|
Idioma: |
Português |
|
Palavras-Chave: |
Borracha natural; Clones de seringueira; Propriedades tecnológicas. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/205625/1/P-MONITORAMENTO-DAS-PROPRIEDADES-TECNOLOGICAS-DA-BORRACHA-NATURAL-DOS-CLONES-DE-SERINGUEIRA-RRIM-710-RRIM-728-RRIM-729-E.pdf
|
|
Marc: |
LEADER 01007nam a2200217 a 4500
001 2115247
005 2020-01-08
008 2019 bl uuuu u00u1 u #d
022 $a2358-9132
100 1 $aSAVAREZ, T.
245 $aMonitoramento das propriedades tecnológicas da borracha natural dos clones de seringueira RRIM 710, RRIM 728, RRIM 729 E RRIM 806 de janeiro a junho de 2019.$h[electronic resource]
260 $aIn: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 4., 2019, São Carlos, SP. Ciência, inovação e mercado: anais. São Carlos, SP: Embrapa Instrumentação, 2019. Editores: Paulino Ribeiro Villas-Boas, Maria Alice Martins, Débora Marcondes Bastos Pereira Milori, Ladislau Martin Neto. SIAGRO 2019.$c2019
300 $a466/470
653 $aBorracha natural
653 $aClones de seringueira
653 $aPropriedades tecnológicas
700 1 $aSILVA, L. O. G. da
700 1 $aSILVA, M. J.
700 1 $aSCALOPPI JR. E. J.
700 1 $aGONÇALVES, P. S.
700 1 $aMARTINS, M. A.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
