Pattern formation in auxin flux
نویسندگان
چکیده
منابع مشابه
Pattern formation in auxin flux.
The plant hormone auxin is fundamental for plant growth, and its spatial distribution in plant tissues is critical for plant morphogenesis. We consider a leading model of the polar auxin flux, and study in full detail the stability of the possible equilibrium configurations. We show that the critical states of the auxin transport process are composed of basic building blocks, which are isolated...
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In both plants and animals vein networks play an essential role in transporting nutrients. In plants veins may also provide mechanical support. The mechanism by which vein patterns are formed in a developing leaf remains largely unresolved. According to the canalization hypothesis, a signal inducing vein differentiation is transported in a polar manner and is channeled into narrow strands. Sinc...
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In angiosperms, pollen wall pattern formation is determined by primexine deposition on the microspores. Here, we show that AUXIN RESPONSE FACTOR17 (ARF17) is essential for primexine formation and pollen development in Arabidopsis (Arabidopsis thaliana). The arf17mutant exhibited amale-sterile phenotype with normal vegetative growth. ARF17was expressed in microsporocytes and microgametophytes fr...
متن کاملAUXIN RESPONSE FACTOR17 is essential for pollen wall pattern formation in Arabidopsis.
In angiosperms, pollen wall pattern formation is determined by primexine deposition on the microspores. Here, we show that AUXIN RESPONSE FACTOR17 (ARF17) is essential for primexine formation and pollen development in Arabidopsis (Arabidopsis thaliana). The arf17 mutant exhibited a male-sterile phenotype with normal vegetative growth. ARF17 was expressed in microsporocytes and microgametophytes...
متن کاملHomogeneous Auxin Steady States and Spontaneous Oscillations in Flux-Based Auxin Transport Models
We consider patterns formed by active transport of auxin in a tissue, where the accumulation of transporters is activated by local fluxes of auxin. We characterize the steady states for which auxin is homogeneous in the tissue. Under a condition of regularity of the dependence of transporters to the flux, we can prove that one of these steady states, with zero flux everywhere, is always locally...
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ژورنال
عنوان ژورنال: Journal of Mathematical Biology
سال: 2013
ISSN: 0303-6812,1432-1416
DOI: 10.1007/s00285-013-0655-9