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Phloem and xylem specification: pieces of the puzzle emerge
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics. fysiologisk botanik. (fysiologisk botanik)
2005 (English)In: Current Opinion in Plant Biology, Vol. 8, no 5, 512-517 p.Article in journal (Refereed) Published
Abstract [en]

The plant vascular system is composed of two tissue types, xylem and phloem, which originate from the vascular meristem, the procambium. Recently, several regulatory mechanisms that control the specification of these two tissue types have been uncovered. These include the asymmetric patterning of xylem and phloem in the vascular bundle by the class III HD-ZIP and KANADI genes, the tissue-type-specific control of vascular cell proliferation by brassinosteroids and class III HD-ZIP genes, the regulation of vascular tissue identity by the MYB-like transcription factor APL, and inductive signalling during xylem differentiation by xylogen. These findings define an emerging developmental framework for the control of vascular tissue specification.

Place, publisher, year, edition, pages
2005. Vol. 8, no 5, 512-517 p.
Keyword [en]
MicroRNA-directed cleavage, III homeobox genes, vascular development, leaf polarity, cell-differentiation, tracheary elements, pattern-formation, organ polarity, KANADI genes, Arabidopsis
URN: urn:nbn:se:uu:diva-75983OAI: oai:DiVA.org:uu-75983DiVA: diva2:103894
Available from: 2006-02-22 Created: 2006-02-22 Last updated: 2016-04-25

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Carlsbecker, Annelie
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