TY  - JOUR
AU  - Weidenbach, Denise
AU  - Jansen, Marcus
AU  - Bodewein, Thomas
AU  - Nagel, Kerstin
AU  - Schaffrath, Ulrich
TI  - Shoot and root phenotyping of the barley mutant kcs6 (3-ketoacyl-CoAsynthase6) depleted in epicuticular waxes under water limitation
JO  - Plant signaling & behavior
VL  - 10
IS  - 4
SN  - 1559-2316
CY  - Austin, Tex.
PB  - Landes Bioscience
M1  - FZJ-2015-03278
SP  - 1-3
PY  - 2015
AB  - 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. 
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000362317900002
C6  - pmid:25876181
DO  - DOI:10.1080/15592324.2014.1003752
UR  - https://juser.fz-juelich.de/record/200931
ER  -