Document Detail

Studies on the role of the Arabidopsis gene MONOPTEROS in vascular development and plant cell axialization.
MedLine Citation:
PMID:  8904808     Owner:  NLM     Status:  MEDLINE    
In the embryo of Arabidopsis thaliana (L.) Heynh., formation of the hypocotyl/root axis is initiated at the early-globular stage, recognizable as oriented expansion of formerly isodiametric cells. The process depends on the activity of the gene MONOPTEROS (MP); mp mutant embryos fail to produce hypocotyl and radicle. We have analyzed the morphology and anatomy of mp mutant plants throughout the Arabidopsis life cycle. Mutants form largely normal rosettes and root systems, but inflorescences either fail to form lateral flowers or these flowers are greatly reduced. Furthermore, the auxin transport capacity of inflorescence axes is impaired and the vascular strands in all analyzed organs are distorted. These features of the mutant phenotype suggest that the MP gene promotes cell axialization and cell file formation at multiple stages of plant development.
G K Przemeck; J Mattsson; C S Hardtke; Z R Sung; T Berleth
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Planta     Volume:  200     ISSN:  0032-0935     ISO Abbreviation:  Planta     Publication Date:  1996  
Date Detail:
Created Date:  1996-12-03     Completed Date:  1996-12-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1250576     Medline TA:  Planta     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  229-37     Citation Subset:  B; S    
Institut für Genetik und Mikrobiologie, Lehrstuhl für Genetik, Universität München, Germany.
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MeSH Terms
Arabidopsis / genetics*,  metabolism*
Genes, Plant*
Indoleacetic Acids / metabolism*
Reg. No./Substance:
0/Indoleacetic Acids

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