Authors: Dieter Kopecky Ildikó Matušíková Astrid Heide Sziderics Friederike Trognitz Nadine Spieß Michael Stierschneider Silvia Fluch
Publish Date: 2013/02/14
Volume: 35, Issue: 6, Pages: 1955-1966
Abstract
Despite of a number of studies on the genetic nature of plant adaptation to drought stress there is still no conclusion on the core mechanism of defense Extraction of knowledge gained from experiments on different plant species under different conditions and subsequent interpolation thus appears to be a challenge Here we applied a sequence similaritybased approach to identify computationally the components of defense against water deprivation The prediction in silico was based on the available scientific data We identified a subset of defense gene candidates of which 2 were experimentally proven to be droughtresponsive The transcriptomic analysis of droughtstressed poplar roots generated data that confirm and/or complement previous reports on plant responses to drought On the other hand we observed suppression of genes involved in antioxidative defense that seems to contradict many foregoing observations The results advantages and possible drawbacks of our prediction approach are discussed in light of experimental data
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