1. La morphogenese florale chez le petunia. I. Analyse d'un mutant a corolle staminee
- Author
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Daniel Maizonnier, Jean Vallade, A. Cornu, UMR 0102 - Unité de Recherche Génétique et Ecophysiologie des Légumineuses, Génétique et Ecophysiologie des Légumineuses à Graines (UMRLEG) (UMR 102), Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, and ProdInra, Migration
- Subjects
0106 biological sciences ,MORPHOGENESE ,0303 health sciences ,Lamina ,Mutant ,Stamen ,food and beverages ,Flor ,Plant Science ,Biology ,[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics ,biology.organism_classification ,01 natural sciences ,Petunia hybrida ,[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics ,03 medical and health sciences ,Mutation (genetic algorithm) ,Botany ,Supernumerary ,Solanaceae ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,010606 plant biology & botany - Abstract
The blind mutant of Petunia hybrida Hort. is characterized by a flower with a highly modified corolla: the much reduced or lacking corolla tube lamina is replaced by five supernumerary anthers, which produce scarce but fertile pollen. The ontogenic study of stamen and corolla formation shows the existence of three separate morphogenetic patterns corresponding to the development of undifferentiated appendages, the formation of pollen sacs or floral appendages, and the final intercalary growth (filament and corolla tube elongation), respectively. A first interpretative scheme of the floral morphogenesis is proposed and discussed.
- Published
- 1987