منابع مشابه
Flower development
Plants that bear flowers are called Angiosperms. With around 300,000 species, they represent the largest and most successful group in the green kingdom. Flowers contain one or more female organs, or carpels, in their center. Carpels enclose the ovules, and later the seeds. Stamens, the male pollenbearing organs, surround the carpels. Sexual organs are in turn surrounded by vegetative organs (th...
متن کاملFlower development: Repressing reproduction
The homeotic genes that determine floral organ identity in plants turn out to be regulated by trans-acting factors related to the Polycomb-group proteins that have long been known as regulators of homeotic gene expression in Drosophila.
متن کاملMolecular evolution of flower development.
Flowers, as reproductive structures of the most successful group of land plants, have been a central focus of study for both evolutionists and ecologists. Recent advances in unravelling the genetics of flower development have provided insight into the evolution of floral structures among angiosperms. The study of the evolution of genes that control floral morphogenesis permits us to draw infere...
متن کاملPollination Regulation of Flower Development.
Pollination regulates a syndrome of developmental responses that contributes to successful sexual reproduction in higher plants. Pollination-regulated developmental events collectively prepare the flower for fertilization and embryogenesis while bringing about the loss of floral organs that have completed their function in pollen dispersal and reception. Components of this process include chang...
متن کاملEarly flower development in Arabidopsis.
The early development of the flower of Arabidopsis thaliana is described from initiation until the opening of the bud. The morphogenesis, growth rate, and surface structure of floral organs were recorded in detail using scanning electron microscopy. Flower development has been divided into 12 stages using a series of landmark events. Stage 1 begins with the initiation of a floral buttress on th...
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ژورنال
عنوان ژورنال: The Arabidopsis Book
سال: 2010
ISSN: 1543-8120,1543-8120
DOI: 10.1199/tab.0127