... members results in profound cell division and organisation defects in Arabidopsis vascular tissue. Arabidopsis Cambium Phloem Procambium Signalling Xylem Cell migration is fundamental to the development of animal body plans. By contrast, plant cell walls do not allow cells...

...J. Peter Etchells; Claire M. Provost; Laxmi Mishra; Simon R. Turner In plants, the cambium and procambium are meristems from which vascular tissue is derived. In contrast to most plant cells, stem cells within these tissues are thin and extremely long. They are particularly unusual as they divide...

... strand differentiation. Here we show that ATHB8 is required to stabilize preprocambial cell specification against auxin transport perturbations, to restrict preprocambial cell state acquisition to narrow fields and to coordinate procambium formation within and between veins. We further show that ATHB8...

... development suffers from the lack of easily identifiable markers, especially of cell states preceding procambium formation. In this study, we have identified and characterized three reporter gene expression markers that reflect three distinct preprocambial stages, as well as one marker whose expression seems...

... of the expression of the procambium specification marker Oshox1-GUS and of the auxin-inducible reporter DR5-GUS demonstrates that all the vascular patterning aberrations of ral1 originate from defects in the procambium, which represents the earliest identifiable stage of vascular development. Furthermore, the ral1...

... element differentiation, without affecting the expression of genes induced during procambium development and early stages of vascular differentiation (Yamamoto et al., 1997). Brassinosteroids and uniconazole, alone or in combination, were tested for their effect on tracheary element differentiation...

... that progenitors of procambium can generally be discerned during the transition from the globular to the heart stage of embryogenesis (review by West and Harada, 1993). We were able to detect a low but significant level of Athb-8 expression in the torpedo stage of the Arabidopsis embryo. This means that Athb...