...Danielle P. Vidaurre; Sara Ploense; Naden T. Krogan; Thomas Berleth AUXIN RESPONSE FACTOR (ARF)-mediated signaling conveys positional information during embryonic and postembryonic organogenesis and mutations in MONOPTEROS ( MP / ARF5 ) result in severe patterning defects during embryonic...

... 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...

... (glial) labeling. Neuronal labeling is distinctly punctate,whereas glial labeling is diffuse and weakly above background. Scattered,punctate HRP-labeling appears on developing neurons shortly after MP progeny or GCs are produced by division. Within a 1% developmental interval, the label is sufficiently...

... this patterning process, we analyzed functions of two Arabidopsis genes, PIN-FORMED1 ( PIN1 ) and MONOPTEROS ( MP ), encoding a putative auxin efflux carrier and a transcription factor thought to mediate auxin signaling, respectively. The corresponding mutants show similar defects in apical patterning, including...

... Arabidopsis thaliana Auxin transport Provascular tissue Vascular development eir1-1 aux1-7 pin1 mp The vascular tissues of plants form an interconnected system of continuous cell files throughout the plant body ( Esau, 1965 ; Nelson and Dengler, 1997 ). Two types of conducting tissues...