The response of a radiation-induced dwarf bean mutant to gibberellic acid
To test the growth response to gibberellic acid (GA) a dwarf mutant induced in bean by gamma irradiation was used. This dwarf mutant is controlled by a simple recessive gene and is characterized by very long shoots and smaller, darker colored leaves than the corresponding parts in normal plants. Wee...
| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Instituto Interamericano de Ciencias Agrícolas (IICA)
2025
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| Materias: | |
| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/13516 |
| Sumario: | To test the growth response to gibberellic acid (GA) a dwarf mutant induced in bean by gamma irradiation was used. This dwarf mutant is controlled by a simple recessive gene and is characterized by very long shoots and smaller, darker colored leaves than the corresponding parts in normal plants. Weekly applications of aqueous solutions of GA from 1 to 32 ppm were able to convert the dwarf mutant to a normal phenotype. It appears that this dwarf is a GA-deficient mutant. The action of this dwarfing gene is thought to be to completely or partially obstruct the biosynthesis of PA, the production of a GA-like substance necessary for normal growth. |
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