... and transporter genes, created an imbalance in auxin signalling. Altered expression of microRNA165/166 (miR165/166) and its targets, ROLLED1 and ROLLED2 (RLD1/2), contributed to the changes in lbl1-rgd1 root growth and vascular patterning , as was evident by the altered root phenotype of Rld1-O semi-dominant...

..., auxin transport in epidermis is neither required nor sufficient for vein patterning; instead, auxin transport in inner tissues is both required and sufficient for vein patterning. Arabidopsis thaliana Leaf development Vascular patterning Auxin PIN genes Necessity and sufficiency...

... of the collagenous template and consequently of the mature bone. Indeed, some of the bone vessels were found to undergo mineralization. Moreover, the vascular pattern at each embryonic stage prefigured the mineral distribution pattern observed one day later. Finally, perturbation of vascular patterning...

...Romulo Hurtado; Rediet Zewdu; James Mtui; Cindy Liang; Robert Aho; Chad Kurylo; Licia Selleri; Doris Herzlinger The architecture of an organ's vascular bed subserves its physiological function and metabolic demands. However, the mechanisms underlying gross vascular patterning remain elusive. Using...

... in syndactyly, whereas an increment in vessel number and distribution resulted in elevation and expansion of PCD. Production of reactive oxygen species (ROS), toxic compounds that have been implicated in PCD, also depended on interdigital vascular patterning. Finally, ex vivo incubation of limbs in gradually...

... observations define, at the molecular level, patterning inputs of auxin signaling in vein formation. * Author for correspondence([email protected]) 31 7 2009 © 2009. © 2009. 2009 Arabidopsis thaliana Leaf development Vascular patterning Vein formation Procambium Auxin signal...

... vasculature have been left understudied. Vascular patterning in the forming limb is tightly regulated in order to ensure sufficient gas exchange and nutrient supply to the developing organ. Once skeletogenesis is initiated,limb vasculature undergoes two seemingly opposing processes: vessel regression from...

... to form a distinctive arterial network. Perturbations of branchial arch artery patterning in humans result in a variety of vascular anomalies that often require surgical correction. Pbx Hox Pax3 Msx2 Heart development Vascular patterning Mouse © 2008. 2008 8 9 2008...

.... This plasticity of vascular patterning is consistent with the initiation of all veins as freely ending veins, but inconsistent with a rigid specification of network properties. Because of the different meanings associated with the term `provascular' in the literature (Esau, 1965 ; Steeves and Sussex, 1989...

... forked2 mp axr6 pin1 Vascular patterning Leaf venation Auxin The spatial arrangement of the vascular bundles within plant leaves is crucial to plant function as it enables efficient transport of water, minerals and photosynthates and provides mechanical support to the leaf. Two major...

... class of mutants termed dov (d ifferential development o f v ascular-associated cells). The dov1 mutant clearly demonstrates a cell-specific difference in chloroplast development. Mutant leaves are highly reticulate with a green vascular pattern. The underlying bundle sheath cells always contain normal...

...Francine M. Carland; Neil A. McHale ABSTRACT We have taken a genetic approach to understanding the mechanisms that control vascular patterning in the leaves of higher plants. Here we present the identification and characterization of the lop1 mutant of Arabidopsis which is defective in basipetal...