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The impact of drought on wheat leaf cuticle properties

OPEN BMC plant biology | 10 May 2017

H Bi, N Kovalchuk, P Langridge, PJ Tricker, S Lopato and N Borisjuk
Abstract
The plant cuticle is the outermost layer covering aerial tissues and is composed of cutin and waxes. The cuticle plays an important role in protection from environmental stresses and glaucousness, the bluish-white colouration of plant surfaces associated with cuticular waxes, has been suggested as a contributing factor in crop drought tolerance. However, the cuticle structure and composition is complex and it is not clear which aspects are important in determining a role in drought tolerance. Therefore, we analysed residual transpiration rates, cuticle structure and epicuticular wax composition under well-watered conditions and drought in five Australian bread wheat genotypes, Kukri, Excalibur, Drysdale, RAC875 and Gladius, with contrasting glaucousness and drought tolerance.
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Concepts
Cutin, Epicuticular wax, Epidermis, Wax, Plant physiology, Leaf, Cuticle, Plant cuticle
MeSH headings
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