Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/105194
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dc.contributor.authorBi, H.en
dc.contributor.authorKovalchuk, N.en
dc.contributor.authorLangridge, P.en
dc.contributor.authorTricker, P.en
dc.contributor.authorLopato, S.en
dc.contributor.authorBorisjuk, N.en
dc.date.issued2017en
dc.identifier.citationBMC Plant Biology, 2017; 17(85):1-13en
dc.identifier.issn1471-2229en
dc.identifier.issn1471-2229en
dc.identifier.urihttp://hdl.handle.net/2440/105194-
dc.description.abstractBACKGROUND: 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. RESULTS: Significant differences were detected in residual transpiration rates between non-glaucous and drought-sensitive Kukri and four glaucous and drought-tolerant lines. No simple correlation was found between residual transpiration rates and the level of glaucousness among glaucous lines. Modest differences in the thickness of cuticle existed between the examined genotypes, while drought significantly increased thickness in Drysdale and RAC875. Wax composition analyses showed various amounts of C31 ß-diketone among genotypes and increases in the content of alkanes under drought in all examined wheat lines. CONCLUSIONS: The results provide new insights into the relationship between drought stress and the properties and structure of the wheat leaf cuticle. In particular, the data highlight the importance of the cuticle’s biochemical makeup, rather than a simple correlation with glaucousness or stomatal density, for water loss under limited water conditions.en
dc.description.statementofresponsibilityHuihui Bi, Nataliya Kovalchuk, Peter Langridge, Penny J. Tricker, Sergiy Lopato, and Nikolai Borisjuken
dc.language.isoenen
dc.publisherBioMed Centralen
dc.rights© The Author(s). 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.en
dc.subjectCuticular wax; ß-diketone; Glaucousness; Residual transpiration rate; Stomatal density; Triticum aestivumen
dc.titleThe impact of drought on wheat leaf cuticle propertiesen
dc.typeJournal articleen
dc.identifier.rmid0030069699en
dc.identifier.doi10.1186/s12870-017-1033-3en
dc.identifier.pubid351955-
pubs.library.collectionAgriculture, Food and Wine publicationsen
pubs.library.teamDS01en
pubs.verification-statusVerifieden
pubs.publication-statusPublished onlineen
dc.identifier.orcidLangridge, P. [0000-0001-9494-400X]en
dc.identifier.orcidTricker, P. [0000-0002-1626-3556]en
Appears in Collections:Agriculture, Food and Wine publications

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