Staminodes evolution and in vitro development innovation in date palm (Phoenix dactylifera L.)
Author | Masmoudi-Allouche, Faïza |
Author | Kriaa, Walid |
Author | Drira, Noureddine |
Available date | 2020-05-14T09:55:47Z |
Publication Date | 2019 |
Publication Name | Comptes Rendus - Biologies |
Resource | Scopus |
ISSN | 16310691 |
Abstract | The in vitro cultivation of date palm staminodes (vestigial stamens) at different stages of female floral ontogenesis confirms the persistence at an immature state of such organs at all the floral differentiation stages. This is evidenced even in fully mature female flowers. Our study revealed the advanced developmental patterns of these rudimentary structures, which bear diverse morphogenetic potentialities. In vitro cultivation of staminodes provides new opportunities for in vitro regeneration of date palm. Such developmental processes were found to be modulated by the stage of floral differentiation, which closely reflected the level of staminode maturity. Development was also impacted by the composition and concentration in plant growth regulators (NAA, BAP and 2,4-D) of the culture media. The large morphogenetic plasticity of the staminodes disposed them to evolutionary variations of the date palm reproduction system. The practical benefits (micropropagation) and the fundamental interests (evolutionary process) of our investigation are discussed. |
Sponsor | The authors would like to express their sincere gratitude to Mr. Anouar Smaoui and Mrs. Hanen Ben Salem from the English Language Unit at the Sfax Faculty of Science for their appreciated translation and language polishing services. They also thank Dr. Riadh Drira for his valued contribution to language revision. This work was supported by the Tunisian Ministry of Higher Education, Scientific Research . |
Language | en |
Publisher | Elsevier Masson SAS |
Subject | Date palm Evolution Floral organs Micropropagation Organogenesis |
Type | Article |
Pagination | 220-229 |
Issue Number | 6-May |
Volume Number | 342 |
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