%0 Journal Article
%A Weidenbach, Denise
%A Jansen, Marcus
%A Bodewein, Thomas
%A Nagel, Kerstin
%A Schaffrath, Ulrich
%T Shoot and root phenotyping of the barley mutant kcs6 (3-ketoacyl-CoAsynthase6) depleted in epicuticular waxes under water limitation
%J Plant signaling & behavior
%V 10
%N 4
%@ 1559-2316
%C Austin, Tex.
%I Landes Bioscience
%M FZJ-2015-03278
%P 1-3
%D 2015
%X Aerial parts of plants are separated from the environment by a cuticle which functions in protection against desiccation and pathogen attack. Recently, we reported on a barley mutant with defect in the 3-KETOACYL-CoA-SYNTHASE (HvKCS6) gene, resulting in reduced coverage of the cuticle with epicuticular waxes. Spores of adapted and non-adapted powdery mildew fungi germinated less frequently on mutant leaves possibly because plant derived signals are missing. We used a shoot and root phenotyping facility to test whether depletion in epicuticular waxes negatively impacts plant performance under water-limiting conditions. While shoots of mutant plants grew slower at well-watered conditions than wild-type plants, they showed an equal or slightly better growth rate at water limitation. Also for roots, differences between mutant and parental line were less prominent at water-limiting as compared to well-watered conditions. Our results challenge the intuitive belief that reduced epicuticular wax might become a drawback at water limitation. 
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000362317900002
%$ pmid:25876181
%R 10.1080/15592324.2014.1003752
%U https://juser.fz-juelich.de/record/200931