Document Detail


New Insights into the Control of Endoreduplication: Endoreduplication Could be Driven by Organ Growth in Arabidopsis Leaves.
MedLine Citation:
PMID:  22010109     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
ABSTRACT Enormous progress has been achieved to understand the molecular mechanisms regulating endoreduplication. By contrast, how this process is coordinated with cell cycle or cell expansion and contributes to overall growth in multicellular systems remains unclear. A holistic approach was used here to give insight into the functional links between endoreduplication, cell division, cell expansion, and whole growth in the Arabidopsis thaliana leaf. Correlative analyses, quantitative genetics, and structural equation modelling were applied to a large dataset issued from the multi-scale phenotyping of 200 genotypes, including both genetically modified lines and recombinant inbred lines. All results support the conclusion that endoreduplication in leaf cells could be controlled by leaf growth itself. More generally, leaf growth could act as a 'hub' that drives cell division, cell expansion and endoreduplication in parallel. In many cases, this strategy allows compensations that stabilize leaf area even when one of the underlying cellular processes is limiting.
Authors:
Catherine Massonnet; Sébastíen Tisné; Amandine Radziejwoski; Denis Vile; Lieven De Veylder; Myriam Dauzat; Christine Granier
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-18
Journal Detail:
Title:  Plant physiology     Volume:  -     ISSN:  1532-2548     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401224     Medline TA:  Plant Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1 INRA;
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