| Registro completo |
| Provedor de dados: |
Braz. J. Plant Physiol.
|
| País: |
Brazil
|
| Título: |
Differential responses of ribulose-1,5-bisphosphate carboxylase/oxygenase activities of two Vigna unguiculata cultivars to salt stress
|
| Autores: |
Aragão,Maria Erivalda Farias de
Guedes,Marjorie Moreira
Otoch,Maria de Lourdes Oliveira
Guedes,Maria Izabel Florindo
Melo,Dirce Fernandes de
Lima,Maria da Guia Silva
|
| Data: |
2005-06-01
|
| Ano: |
2005
|
| Palavras-chave: |
Rubisco
Photosynthesis
Salt stress
Vigna unguiculata
|
| Resumo: |
Vita 3 and Vita 5 are two Vigna unguiculata cultivars that differ in their capacities for survival in saline environments; Vita 3 is more tolerant and Vita 5 more sensitive. Both cultivars were submitted to salt stress with 0.1 M NaCl. After 8 days, root and shoot growth from both cultivars was reduced but reduction was more pronounced in Vita 5. Furthermore, leaf area was also reduced in this cultivar. Chlorophyll content and chlorophyll fluorescence parameters were not affected by salt stress, but the specific activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) decreased in Vita 3 and increased in Vita 5. The use of immunological techniques also revealed that the Rubisco content from Vita 3 decreased while that of Vita 5 increased. The discussion of these results is aimed at reaching a better understanding of the differences between these cultivars in relation to salt stress.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000200003
|
| Editor: |
Brazilian Journal of Plant Physiology
|
| Relação: |
10.1590/S1677-04202005000200003
|
| Formato: |
text/html
|
| Fonte: |
Brazilian Journal of Plant Physiology v.17 n.2 2005
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
