| Autor: | E Lalanne, F Vedel, C Mathieu, R De Pape, O Roche |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
chemistry.chemical_classification
biology food and beverages Plant Science General Medicine biology.organism_classification medicine.disease_cause Cell biology Amino acid Amino acid permease chemistry Pollen Botany otorhinolaryngologic diseases Genetics medicine Amino acid transporter Translation factor Nicotiana sylvestris Agronomy and Crop Science Peptide sequence Gene |
| Zdroj: | Plant Molecular Biology. 35:855-864 |
| ISSN: | 0167-4412 |
| DOI: | 10.1023/a:1005812419151 |
| Popis: | We report here the structure and expression analysis of a Nicotiana sylvestris gene, called nsaap1, coding for a protein which shows significant identity to the members of the Arabidopsis thaliana amino acid permease family. The nsaap1 gene is expressed exclusively in binucleate pollen. Its transcripts begin to accumulate after first pollen mitosis and dramatically increase in mature pollen shortly before anthesis and during in vitro pollen germination. The nsaap1 5'-flanking region contains long regions homologous to the promoter region of the tobacco pollen specific eIF-4A8 translation factor. Our results support the occurrence of an amino acid remobilization in binucleate pollen. The nsaap1 gene could play a role in exchanges between the vegetative and the generative pollen cells. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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