| Texto completo | |
| Autor(es): |
Cancado, G. M. A.
[1]
;
Nogueira, F. T. S.
[1]
;
Camargo, S. R.
[1]
;
Drummond, R. D.
[1]
;
Jorge, R. A.
[2]
;
Menossi, M.
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Ctr Biol Mol Engn Genet, BR-13083970 Campinas, SP - Brazil
[2] EPAMIG, Inst Quim, BR-37780000 Caldas, MG - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Biologia Plantarum; v. 52, n. 3, p. 475-485, 2008. |
| Citações Web of Science: | 11 |
| Resumo | |
To investigate the molecular mechanisms of Al toxicity, cross-species cDNA array approach was employed to identify expressed sequence tags (ESTs) regulated by Al stress in root tips of Al-tolerant maize (Zea mays) genotype Cat100-6 and Al-sensitive genotype S1587-17. Due to the high degree of conservation observed between sugarcane and maize, we have analyzed the expression profiling of maize genes using 2 304 sugarcane (ESTs) obtained from different libraries. We have identified 85 ESTs in Al stressed maize root tips with significantly altered expression. Among the up-regulated ESTs, we have found genes encoding previously identified proteins induced by Al stress, such as phenyl ammonia-lyase, chitinase, Bowman-Birk proteinase inhibitor, and wali7. In addition, several novel genes up-and down-regulated by Al stress were identified in both genotypes. (AU) | |
| Processo FAPESP: | 04/05131-7 - Tolerância ao alumínio em milho: avaliação do efeito de transgenes e de um promotor específico de ápices radiculares |
| Beneficiário: | Marcelo Menossi Teixeira |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |