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Formation of embryogenic cell clumps from carrot epidermal cells is suppressed by 5-azacytidine, a DNA methylation inhibitor.

Abstract：

:Using a direct somatic embryogenesis system in carrot, we examined the role of DNA methylation in the change of cellular differentiation state, from somatic to embryogenic. 5-Azacytidine (aza-C), an inhibitor of DNA methylation suppressed the formation of embryogenic cell clumps from epidermal carrot cells. Aza-C also downregulated the expression of DcLEC1c, a LEC1-like embryonic gene in carrot, during morphogenesis of embryos. A carrot DNA methyltransferase gene, Met1-5 was expressed transiently after the induction of somatic embryogenesis by 2,4-dichlorophenoxyacetic acid (2,4-D), before the formation of embryogenic cell clumps. These findings suggested the significance of DNA methylation in acquiring the embryogenic competence in somatic cells in carrot.

journal_name

J Plant Physiol

journal_title

Journal of plant physiology

authors

Yamamoto N,Kobayashi H,Togashi T,Mori Y,Kikuchi K,Kuriyama K,Tokuji Y

doi

10.1016/j.jplph.2004.05.013

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

47-54

issue

1

eissn

0176-1617

issn

1618-1328

pii

S0176-1617(04)00108-7

journal_volume

162

pub_type

杂志文章

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