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Annu Rev Plant Biol. 2002;53:183-202.

Vascular tissue differentiation and pattern formation in plants.

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1
Department of Botany, University of Georgia, Athens, Georgia 30602, USA. zhye@dogwood.botany.uga.edu

Abstract

Vascular tissues, xylem and phloem, are differentiated from meristematic cells, procambium, and vascular cambium. Auxin and cytokinin have been considered essential for vascular tissue differentiation; this is supported by recent molecular and genetic analyses. Xylogenesis has long been used as a model for study of cell differentiation, and many genes involved in late stages of tracheary element formation have been characterized. A number of mutants affecting vascular differentiation and pattern formation have been isolated in Arabidopsis. Studies of some of these mutants have suggested that vascular tissue organization within the bundles and vascular pattern formation at the organ level are regulated by positional information.

[Indexed for MEDLINE]

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