Page 70 - Zbornik_Konf_2019

https://doi.org/10.15414/2019.9788055220703

4 International Scientific Conference Abstracts Book
th
DIVERSITY OF POLLEN GRAINS OF TILIA GENUS IN UKRAINIAN HONEYS

Leonora Adamchuk , Oleksandr Shynder , Jana Šimková
3
2
1
1 National University of Life and Environmental Sciences of Ukraine,
Kyiv, Ukraine; E-mail.: leonora.adamchuk@gmsil.com
2 M.M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine,
Kyiv, Ukraine
3 Institute of Biological Conservation and Biosafety, Slovak University of Agriculture in Nitra,
Nitra, Slovak Republic
One of the most valuable varieties of Ukrainian honey is linden, known for its medicinal
properties and organoleptic commodity qualities (taste, aroma). However, exporters often
face the problem of identifying pollen grains of certain species of Tilia spp. in honey, which
makes it impossible to position them as a varietal. That is why studying the morphological
features of pollen grains of the species of lindens growing on the territory of our state for the
purpose of further their recognition in honey has a significant scientific and practical
significance. Features of the structure and surface of pollen grains of the Tilia genus were
studied by various scientists using scanning electronic microscopy (Chambers & Godwin,
1961; 1971; Andrew, 1971; Stockmarr, 1974). However, profound scientific research, in the
vast majority, concerned two types – T. cordata Mill. and T. platyphyllos Scop. In the modern
database of pollen grains for identification of them there are only four species of lindens – T×
euchlora K. Koch, T. cordata, T. platyphyllos and T. tomentosa Moench (www.paldat.org); and
only two of them (T. euchlora and T. tomentosa) have an image of a pollen under a light
microscope, which is suitable for identification of the species in honey. At the same time, there
are other resources for identification of linden species. For example, Science and Plants for
Schools (SAPS) (www.saps.org.uk), which offers images of three species of lindens –
T. platyphyllus, T. × euchlora, and T. × europea. The Pollen-Wiki resource also offers images of
only three species of linden – T. Henryana Szyszyl., T. platyphyllos, and T. cordata. Atlas of
pollen grains of russian authors, which is widely used to identify the botanical origin of honey
from Eastern Europe and Asia, has identifiers for only two species of lindens – T. begoniifolia
Steven and T. cordata.
In the flora of Ukraine, there are 5 native species of the Tilia genus and 2 hybridogenic
species. In addition, in plantations and parks throughout the territory of Ukraine, it is
cultivated more than 10 introduced species of the genus. This causes a sharp need to study
the morphology of their pollen grains for further identification of honey. For a separate
direction of experimental work, we have selected to study the morphological features of
pollen grains of various forms of the hybridogenic species T. × europea (T. cordata ×
T. platyphyllos), which is one of the earliest flowering species, is widely distributed in parks
and other artificial plantations and has high seed reproduction rates.
Keywords: Tilia, pollen grain, Ukrainian honey, linden honey.

Acknowledgments
Author Leonora Adamchuk thanks the International Visegrad Fund (51910842) for the scholarship
and research internships, during which the results and knowledge presented in this paper were
obtained. The publication was prepared with the active participation of researchers involved in the
International network AgroBioNet of the Institutions and researchers for the realization of research,
education, and development program 'Agrobiodiversity for Improving Nutrition, Health and Life
Quality' TRIVE (ITMS 26110230085).

|70 4 International Scientific Conference Agrobiodiversity Nutrition, Health and Quality of Human and Bees Life
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September 11–13, 2019