Document Detail


In vitro hermaphrodism induction in date palm female flower.
MedLine Citation:
PMID:  18820934     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study explores and reports on the gain brought to the morphogenetic aptitude of female date palm inflorescences through in vitro hermaphrodism induction. It investigates the main factors involved in the process of sex modification through hormonal induction, such as the floral developmental stage and hormone combination and concentration. It demonstrates that the vestigial stamens (staminodes) of female date palm flowers display a new and high capacity to proliferate under particular in vitro conditions, without blocking carpel's development, leading to morphologically typical hermaphrodite flowers. This de novo activation of repressed stamens was found to occur rapidly. The isolated pollen mother cells appear in the obtained anther's locules and undergo an ordinary microsporogenesis process. The data show that hermaphrodism induction depended heavily on both the growth regulators applied and the flower's developmental stage. They also confirm the early theory that suggests that dioecious plants come from a hermaphrodite ancestor. Such hermaphrodism control can provide new prospects and opportunities for the investigation of the in vitro self-fertilization process. It can also be useful in improving the understanding of the genetic mechanism involved in sex organ development in date palm.
Authors:
Faïza Masmoudi-Allouche; Anissa Châari-Rkhis; Walid Kriaâ; Radhia Gargouri-Bouzid; Shri Mohan Jain; Noureddine Drira
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-09-25
Journal Detail:
Title:  Plant cell reports     Volume:  28     ISSN:  0721-7714     ISO Abbreviation:  Plant Cell Rep.     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2008-12-16     Completed Date:  2009-04-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9880970     Medline TA:  Plant Cell Rep     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1-10     Citation Subset:  IM    
Affiliation:
Department of Biology, Faculty of Sciences Sfax, Route Soukra, BP 1171, 3000, Sfax, Tunisia. faizamasmoudi@yahoo.fr
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MeSH Terms
Descriptor/Qualifier:
Arecaceae / anatomy & histology*,  drug effects,  growth & development
Flowers / cytology,  growth & development*
Gene Expression Regulation, Developmental
Gene Expression Regulation, Plant
Plant Growth Regulators / pharmacology
Pollen / cytology,  growth & development*
Chemical
Reg. No./Substance:
0/Plant Growth Regulators

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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