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Curr Opin Plant Biol. 2000 Dec;3(6):517-22.

Xylogenesis: the birth of a corpse.

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1
Department of Cell Biology, John Innes Centre, Norwich Research Park, Colney, NR4 7UH, Norwich, UK. keith.roberts@bbsrc.ac.uk

Abstract

Xylogenesis is a complex developmental process culminating in programmed cell death as a truly terminal differentiation event. In Arabidopsis, the availability of vascular-patterning mutants, and the identification of genes and their products that are involved in cell specification, secondary-wall deposition and lignification, are providing clues to the functions of some of the sequences in the large expressed sequence tag databases derived from the xylem-rich tissues of trees. An in vitro system, the Zinnia mesophyll cell system, provides an alternative system for those cell-biological experiments that are difficult to tackle in intact plants. In particular, a combination of molecular-genetic and cell-biological approaches has made possible the elucidation of some of the features of plant programmed cell death.

PMID:
11074384
[Indexed for MEDLINE]
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