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Epicuticular waxes composition of leaves of Tilia L. trees as a marker of adaptation to the climatic conditions of the steppe Dnieper

Lykholat Yu.V., Khromykh N.O., Pirko Ya.V., Alexeyeva A.A., Pastukhova N.L., Blume Ya.B.

 




SUMMARY. The relationship between the adaptive ability of different linden genotypes to the changing climatic conditions of the Steppe Dnieper and the epicuticular wax component composition of tree leaves was investigated. Specificity of the epicuticular wax hydrocarbon com-position of linden autochthonous species (T. cordata) and introduced species (T. platyphyllos and T. begoniifolia) was established. For all genotypes, significant differences in the composition of epicuticular waxes from the surface of shaded and sun-adapted leaves were identified. The greatest accumulation of the epicuticular waxes was on the leaves of T. platyphyllos both under the shading conditions and illumination (11.0 and 17.6 µg/cm2, respectively). The general pattern for the genus Tilia L. species consisted in a substantial increase in the content of very long chain n-alkanes simultaneously with a sharp decrease in the free fatty acids content in the composition of epicuticular waxes under the intensive illumination of leaves.

Key words: cuticle, surface wax, linden, species, illumination, adaptation

Tsitologiya i Genetika 2018, vol. 52, no. 5, pp. 3-12

E-mail: Lykholat2006 ukr.net, KhromykhN ukr.net, yarvp1 gmail.com, ann.alekseeva21 gmail.com, nataliia.pastukhova gmail.com, cellbio cellbio.freenet.viaduk.net

Lykholat Yu.V., Khromykh N.O., Pirko Ya.V., Alexeyeva A.A., Pastukhova N.L., Blume Ya.B. Epicuticular waxes composition of leaves of Tilia L. trees as a marker of adaptation to the climatic conditions of the steppe Dnieper, Tsitol Genet., 2018, vol. 52, no. 5, pp. 3-12.

In "Cytology and Genetics":
Yu. V. Lykholat, N. O. Khromykh, Ya. V. Pirko, A. A. Alexeyeva, N. L. Pastukhova, Ya. B. Blume Epicuticular Wax Composition of Leaves of Tilia L. Trees as a Marker of Adaptation to the Climatic Conditions of the Steppe Dnieper, Cytol Genet., 2018, vol. 52, no. 5, pp. 323–330
DOI: 10.3103/S0095452718050067


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