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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
28/09/2012 |
Data da última atualização: |
18/05/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MENDES, A. F. S.; CIDADE, L. C.; OTONI, W. C.; SOARES FILHO, W. dos S.; COSTA, M. G. C. |
Afiliação: |
A. F. S. MENDES, UESC; L. C. CIDADE, UESC; W. C. OTONI, UFV; WALTER DOS SANTOS SOARES FILHO, CNPMF; M. G. C. COSTA, UESC. |
Título: |
Role of auxins, polyamines and ethylene in root formation and growth in sweet orange. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Biologia Plantarum, v. 55, n. 2, p. 375-378, 2011. |
ISSN: |
0006-3134 |
Idioma: |
Inglês |
Conteúdo: |
The primary objective of this work was to investigate the role of polyamines (PAs) on root formation and growth in two sweet orange (Citrus sinensis L. Osb.) cultivars Pineapple and Pêra. Adventitious shoots (30-d-old) derived from epicotyl explants were transferred to root induction medium containing Murashige and Skoog salts at different strengths and supplemented with different concentrations and combinations of auxins. Root formation and development decreased in both sweet orange cultivars concomitant with the reduction of medium strength. The ?-aphtaleneacetic acid was important during the root differentiation phase, but its combination with indole-3-butyric acid was essential for root elongation. The addition of PAs significantly improved root formation and/or growth, depending on their concentration, whereas the presence of inhibitor of PAs biosynthesis ?-difluoromethylornithine (DFMO) inhibited these processes. The rooting impairment caused by DFMO was partially reversed by the supplementation of putrescine. Aminoethoxyvinylglycine AVG and AgNO3 also inhibited in vitro rooting in both sweet orange cultivars, indicating that ethylene was likewise important for rhizogenesis in sweet orange. |
Thesagro: |
Citrus Sinensis. |
Thesaurus Nal: |
putrescine; rooting; spermidine; spermine. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 01893naa a2200241 a 4500 001 1934982 005 2023-05-18 008 2011 bl uuuu u00u1 u #d 022 $a0006-3134 100 1 $aMENDES, A. F. S. 245 $aRole of auxins, polyamines and ethylene in root formation and growth in sweet orange.$h[electronic resource] 260 $c2011 520 $aThe primary objective of this work was to investigate the role of polyamines (PAs) on root formation and growth in two sweet orange (Citrus sinensis L. Osb.) cultivars Pineapple and Pêra. Adventitious shoots (30-d-old) derived from epicotyl explants were transferred to root induction medium containing Murashige and Skoog salts at different strengths and supplemented with different concentrations and combinations of auxins. Root formation and development decreased in both sweet orange cultivars concomitant with the reduction of medium strength. The ?-aphtaleneacetic acid was important during the root differentiation phase, but its combination with indole-3-butyric acid was essential for root elongation. The addition of PAs significantly improved root formation and/or growth, depending on their concentration, whereas the presence of inhibitor of PAs biosynthesis ?-difluoromethylornithine (DFMO) inhibited these processes. The rooting impairment caused by DFMO was partially reversed by the supplementation of putrescine. Aminoethoxyvinylglycine AVG and AgNO3 also inhibited in vitro rooting in both sweet orange cultivars, indicating that ethylene was likewise important for rhizogenesis in sweet orange. 650 $aputrescine 650 $arooting 650 $aspermidine 650 $aspermine 650 $aCitrus Sinensis 700 1 $aCIDADE, L. C. 700 1 $aOTONI, W. C. 700 1 $aSOARES FILHO, W. dos S. 700 1 $aCOSTA, M. G. C. 773 $tBiologia Plantarum$gv. 55, n. 2, p. 375-378, 2011.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
01/12/2017 |
Data da última atualização: |
06/12/2017 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SOUZA, R. M.; COELHO, M. S.; ALVES, B. J. R. |
Afiliação: |
UFRJ; MONALISA SANTANA COELHO DE JESUS, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB. |
Título: |
Development of a method to prepare samples of plants material for determination of Ca, Cu, Mg, Mn, Fe and Zn by FAASA and P using complexometry. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
n RIO SYMPOSIUM ON ATOMIC SPECTROMETRY, 14., 2017, Vitória - Espirito Santo. Abstracts... Vitória - Espirito Santo: UFES, 2017. |
Idioma: |
Inglês |
Palavras-Chave: |
Clean method; Plant tissue analysis. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 00609nam a2200145 a 4500 001 2081254 005 2017-12-06 008 2017 bl uuuu u00u1 u #d 100 1 $aSOUZA, R. M. 245 $aDevelopment of a method to prepare samples of plants material for determination of Ca, Cu, Mg, Mn, Fe and Zn by FAASA and P using complexometry.$h[electronic resource] 260 $an RIO SYMPOSIUM ON ATOMIC SPECTROMETRY, 14., 2017, Vitória - Espirito Santo. Abstracts... Vitória - Espirito Santo: UFES$c2017 653 $aClean method 653 $aPlant tissue analysis 700 1 $aCOELHO, M. S. 700 1 $aALVES, B. J. R.
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