Auxin transport model for leaf venation
نویسندگان
چکیده
منابع مشابه
Linking Auxin with Photosynthetic Rate via Leaf Venation.
Land plants lose vast quantities of water to the atmosphere during photosynthetic gas exchange. In angiosperms, a complex network of veins irrigates the leaf, and it is widely held that the density and placement of these veins determines maximum leaf hydraulic capacity and thus maximum photosynthetic rate. This theory is largely based on interspecific comparisons and has never been tested using...
متن کاملInferring climate from angiosperm leaf venation networks.
Leaf venation networks provide an integrative linkage between plant form, function and climate niche, because leaf water transport underlies variation in plant performance. Here, we develop theory based on leaf physiology that uses community-mean vein density to predict growing season temperature and atmospheric CO2 concentration. The key assumption is that leaf water supply is matched to water...
متن کاملPatterning of Leaf Vein Networks by Convergent Auxin Transport Pathways
The formation of leaf vein patterns has fascinated biologists for centuries. Transport of the plant signal auxin has long been implicated in vein patterning, but molecular details have remained unclear. Varied evidence suggests a central role for the plasma-membrane (PM)-localized PIN-FORMED1 (PIN1) intercellular auxin transporter of Arabidopsis thaliana in auxin-transport-dependent vein patter...
متن کاملInteractive venation-based leaf shape modeling
We describe a representation for tree leaves and an interactive modeling system for creating realistic close up images of leaf clusters. The planar outline of the leaf and the larger members of its venation system are strong factors in the recognition of plant species and as such are essential to realistic imaging. The larger veins also play a major biological role in determining the leaf surfa...
متن کاملAn Emerging Model of Auxin Transport Regulation
The hormone auxin plays a critical role in the regulation of plant growth and development. Auxin is transported from cell to cell with strict directionality by uptake and efflux carrier proteins (reviewed by Muday and DeLong, 2001). The polarity of auxin transport is believed to be controlled by the localization of auxin transport proteins, with both putative efflux carriers and influx carriers...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2019
ISSN: 1364-5021,1471-2946
DOI: 10.1098/rspa.2019.0015