Document Detail


SIMPLE LEAF3 encodes a ribosome-associated protein required for leaflet development in Cardamine hirsuta.
MedLine Citation:
PMID:  23145478     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Leaves show considerable variation in shape and can be described as simple, when the leaf is entire, or dissected, when the leaf is divided into individual leaflets. Here, we report that the SIMPLE LEAF3 (SIL3) gene is a novel determinant of leaf shape in Cardamine hirsuta - a dissected leafed relative of the simple leafed model species Arabidopsis thaliana. We show that SIL3 is required for leaf growth and leaflet formation whereas leaf initiation is less sensitive to perturbation of SIL3 activity. SIL3 is further required for KNOX (knotted1-like homeobox) gene expression and localized auxin activity maxima, both of which are known to promote leaflet formation. We cloned SIL3 and showed it encodes RLI2 (RNase L Inhibitor 2), an ABC (ATP binding cassette)-type ATPase with important roles in ribosome recycling and translation termination that are conserved in eukaryotes and archaea. RLI mutants have not been described in plants to date, and this report highlights the potential of genetic studies in C. hirsuta to uncover novel gene functions. Our data indicates that leaflet development is sensitive to the perturbation of RLI2-dependent aspects of cellular growth and links ribosome function with dissected leaf development. © 2012 The Authors. The Plant Journal © 2012 Blackwell Publishing Ltd.
Authors:
Evangelia Kougioumoutzi; Maria Cartolano; Claudia Canales; Mhairi Dupré; Jonathan Bramsiepe; Daniela Vlad; Madlen Rast; Rafaelle Dello Ioio; Alex Tattersall; Arp Schnittger; Angela Hay; Miltos Tsiantis
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-12
Journal Detail:
Title:  The Plant journal : for cell and molecular biology     Volume:  -     ISSN:  1365-313X     ISO Abbreviation:  Plant J.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9207397     Medline TA:  Plant J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. The Plant Journal © 2012 Blackwell Publishing Ltd.
Affiliation:
Plant Sciences Dept, University of Oxford, South Parks Rd, Oxford, OX1 3RB, UK.
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