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PMID: 22573183 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Review

Floral meristem initiation and emergence in plants.

Cellular and molecular life sciences : CMLS ·Vol. 69 ·No. 22 ·2012-11-00 ·Pages 3807-18

Chandler JW

Abstract

Plant development and architecture is regulated by meristems that initiate lateral organs on their flanks. The gene regulatory networks that govern the transition of a vegetative shoot apical meristem into an inflorescence meristem (IM), together with those necessary to specify floral meristem (FM) identity have been elucidated in Arabidopsis thaliana and are highly complex and redundant. FMs are initiated in the axils of cryptic bracts and evidence suggests that FMs emerge and differentiate along an abaxial/adaxial axis, in contrast to existing models of centroradial positional information within FMs. Real-time imaging has revealed dynamic cell division and gene expression patterns associated with incipient primordia in the IM. This review, however, outlines how little is known concerning the identity of these primordia, the timing of FM specification and commitment in relation to the establishment of FM identity, and the interplay between bract and FM founder cell recruitment and development.

MeSH Terms
Arabidopsis/genetics,growth & development,physiology Arabidopsis Proteins/metabolism Flowers/growth & development Gene Expression Regulation, Developmental Gene Expression Regulation, Plant Gene Regulatory Networks Indoleacetic Acids/metabolism Meristem/growth & development,physiology
Chemicals
Arabidopsis Proteins Indoleacetic Acids
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Chandler J W
Institute of Developmental Biology, Cologne Biocenter, Cologne University, Cologne, Germany. john.chandler@uni-koeln.de
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Article Info
Journal
Cellular and molecular life sciences : CMLS
Abbr.
Cell Mol Life Sci
ISSN
1420-9071
DOI
10.1007/s00018-012-0999-0
Email
john.chandler@uni-koeln.de
Published
2012-11-00
Epub
2012-00-10
Pages
3807-18
Language
English
Region
Switzerland
NLM ID
9705402
Subset
IM
External Links
PubMed source DOI: 10.1007/s00018-012-0999-0 View journal details
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