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Figueira,Antonio; Kido,Ederson Akio; Almeida,Raul Santin. |
Plant nutrient uptake is an active process, requiring energy to accumulate essential elements at higher levels in plant tissues than in the soil solution, while the presence of toxic metals or excess of nutrients requires mechanisms to modulate the accumulation of ions. Genes encoding ion transporters isolated from plants and yeast were used to identify sugarcane putative homologues in the sugarcane expressed sequence tag (SUCEST) database. Five cluster consensi with sequence homology to plant high-affinity phosphate transporter genes were identified. One cluster consensus allowed the prediction of a full-length protein containing 541 amino acids, with 81% amino acid identity to the Nicotiana tabacum NtPT1 gene, consisting of 12 membrane-spanning domains... |
Tipo: Info:eu-repo/semantics/article |
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Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572001000100028 |
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Houllou-Kido,Laureen Michelle; Kido,Ederson Akio; Falco,Maria Cristina; Silva Filho,Márcio de Castro; Figueira,Antônio Vargas de Oliveira; Nogueira,Neusa de Lima; Rossi,Mônica Lanzoni; Tulmann Neto,Augusto. |
A plant regeneration method with cell suspension cultures of banana, and the effect of biobalistic on regeneration potential are described in this report. Somatic embryos of banana were obtained from indirect embryogenesis of male inflorescence of banana cultivar Maçã (AAB group). Part of the calluses formed (40%) showed embryogenic characteristics (nonfriable, compact and yellow color). The cell suspension, originated from embryogenic calluses, contained clusters of small tightly packed cells with dense cytoplasms, relatively large nuclei and very dense nucleoli. After four months of culture, somatic embryos started to regenerate. The maximum number of regenerated plants was observed between 45 and 60 days after embryo formation.In the first experiment,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa; Cell suspension; Callus; Somatic differentiation; Biobalistic. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005001100005 |
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