Auxin polar transport in stamen formation and development: how many actors?
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چکیده
منابع مشابه
Auxin polar transport in stamen formation and development: how many actors?
In flowering plants, proper development of stamens, the male reproductive organs, is required for successful sexual reproduction. In Arabidopsis thaliana normally six stamen primordia arise in the third whorl of floral organs and subsequently differentiate into stamen filaments and anthers, where male meiosis occurs, thus ending the early developmental phase. This early phase is followed by a l...
متن کاملAuxin regulation of late stamen development.
Pollination in self-fertilizing plants depends on the proper timing of filament elongation, anther dehiscence, and pollen maturation so that pollen grains capable of germination are deposited on the stigma surface. Auxin is known to be necessary for stamen development. For example, Cheng et al. (2006) found that stamen development is halted in the Arabidopsis auxin biosynthesis-defective mutant...
متن کاملLEAFY and Polar Auxin Transport Coordinately Regulate Arabidopsis Flower Development.
The plant specific transcription factor LEAFY (LFY) plays a pivotal role in the developmental switch to floral meristem identity in Arabidopsis. Our recent study revealed that LFY additionally acts downstream of AUXIN RESPONSE FACTOR5/MONOPTEROS to promote flower primordium initiation. LFY also promotes initiation of the floral organ and floral organ identity. To further investigate the interpl...
متن کاملKinetics of polar auxin transport.
The movement of auxin in the basipetal and acropetal directions is compared for 4 types of tissue. It is observed that the transport may proceed in either a linear or a non-linear manner with time. The polarity of transport through any given type of tissue increases exponentially with increasing lengths of tissue traversed, suggesting that the polarity of transport is developed as a consequence...
متن کاملPolar auxin transport: models and mechanisms.
Spatial patterns of the hormone auxin are important drivers of plant development. The observed feedback between the active, directed transport that generates auxin patterns and the auxin distribution that influences transport orientation has rendered this a popular subject for modelling studies. Here we propose a new mathematical framework for the analysis of polar auxin transport and present a...
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ژورنال
عنوان ژورنال: Frontiers in Plant Science
سال: 2014
ISSN: 1664-462X
DOI: 10.3389/fpls.2014.00333