TY  - GEN
A1  - Johnson, Kim L.
A1  - Ramm, Sascha
A1  - Kappel, Christian
A1  - Ward, Sally
A1  - Leyser, Ottoline
A1  - Sakamoto, Tomoaki
A1  - Kurata, Tetsuya
A1  - Bevan, Michael W.
A1  - Lenhard, Michael
T1  - The tinkerbell (tink) mutation identifies the dual-specificity MAPK phosphatase INDOLE- 3-BUTYRIC ACID-RESPONSE5 (IBR5) as a novel regulator of organ size in Arabidopsis
T2  - PLoS ONE
N2  - Mitogen-activated dual-specificity MAPK phosphatases are important negative regulators in the MAPK signalling pathways responsible for many essential processes in plants. In a screen for mutants with reduced organ size we have identified a mutation in the active site of the dual-specificity MAPK phosphatase INDOLE-3-BUTYRIC ACID-RESPONSE5 (IBR5) that we named tinkerbell (tink) due to its small size. Analysis of the tink mutant indicates that IBR5 acts as a novel regulator of organ size that changes the rate of growth in petals and leaves. Organ size and shape regulation by IBR5 acts independently of the KLU growth-regulatory pathway. Microarray analysis of tink/ibr5-6 mutants identified a likely role for this phosphatase in male gametophyte development. We show that IBR5 may influence the size and shape of petals through auxin and TCP growth regulatory pathways.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 427 
KW  - class-i
KW  - protein phosphatase
KW  - auxin
KW  - responses
KW  - thaliana
KW  - kinase
KW  - growth
KW  - interacts
KW  - distinct
KW  - pathway
Y1  - 2018
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-410245
ER  -