Results 11 to 20 of about 16,571 (316)

Control of leaf vascular patterning by polar auxin transport [PDF]

open access: goldGenes & Development, 2006
The formation of the leaf vascular pattern has fascinated biologists for centuries. In the early leaf primordium, complex networks of procambial cells emerge from homogeneous subepidermal tissue. The molecular nature of the underlying positional information is unknown, but various lines of evidence implicate gradually restricted transport routes of the
Enrico Scarpella   +3 more
openalex   +5 more sources

LEAFY and Polar Auxin Transport Coordinately Regulate Arabidopsis Flower Development

open access: yesPlants, 2014
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 ...
Nobutoshi Yamaguchi   +3 more
doaj   +2 more sources

Dehydrocostus lactone, a naturally occurring polar auxin transport inhibitor, inhibits epicotyl growth by interacting with auxin in etiolated Pisum sativum seedlings

open access: goldActa Agrobotanica, 2019
We have isolated germacranolide-type sesquiterpene lactones with an α-methylene-γ-lactone moiety, dehydrocostus lactone (DHCL), costunolide, santamarine, and a novel compound denoted artabolide [3-hydroxy-4,6,7(H)-germacra-1(10),11(13)-dien-6,12-olide ...
Yuta Toda   +3 more
doaj   +3 more sources

POLAR TRANSPORT OF AUXIN THROUGH EMBRYOS [PDF]

open access: bronzeNew Phytologist, 1976
SUMMARYHypocotyls of embryos from unripe and soaked ripe seeds of Phaseolus vulgaris and Acer pseudoplatanus are shown to be capable of transporting auxin. The transport is strongly polar and shows the characteristics of active transport in the basipetal but not the acropetal direction.
Stephen C. Fry, ELISABETH WANGERMANN
openalex   +4 more sources

Regulation of polar auxin transport by protein and lipid kinases. [PDF]

open access: yesJ Exp Bot, 2016
The directional transport of auxin, known as polar auxin transport (PAT), allows asymmetric distribution of this hormone in different cells and tissues. This system creates local auxin maxima, minima, and gradients that are instrumental in both organ initiation and shape determination.
Armengot L   +2 more
europepmc   +6 more sources

Polar auxin transport and patterning: grow with the flow [PDF]

open access: goldGenes & Development, 2006
Particularly in the fall, plant leaves demand attention as examples of the beauty of nature. Around that time, anyone can pick them up and have a close look at the variety in venation patterns. For a considerable time, biologists and mathematicians went one step farther, trying to find regularities in these patterns and rules behind them.
Ben Scheres, Jian Xu
openalex   +6 more sources

Coordination of tissue cell polarity by auxin transport and signaling

open access: yeseLife, 2019
Plants coordinate the polarity of hundreds of cells during vein formation, but how they do so is unclear. The prevailing hypothesis proposes that GNOM, a regulator of membrane trafficking, positions PIN-FORMED auxin transporters to the correct side of ...
Carla Verna   +4 more
doaj   +7 more sources

Polar Auxin Transport: New Support for an Old Model [PDF]

open access: bronzeThe Plant Cell, 1998
In 1880, Charles Darwin noted that “some influence,” later shown to be indole-3-acetic acid (IAA), moves from the tip of an oat coleoptile to the region below the tip, where it controls elongation ([Darwin, 1880][1]).
Mark Estelle
openalex   +4 more sources

Leaf vein patterning is regulated by the aperture of plasmodesmata intercellular channels

open access: yesPLoS Biology, 2022
To form tissue networks, animal cells migrate and interact through proteins protruding from their plasma membranes. Plant cells can do neither, yet plants form vein networks.
Nguyen Manh Linh, Enrico Scarpella
doaj   +2 more sources

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