Morphological variability of Rossiulus kessleri (Diplopoda, Julida) from different biotopes within Steppe Zone of Ukraine

Pokhylenko, A. P.; Lykholat, O. A.; Дідур, О. О.; Kulbachko, Y. L.; Lykholat, T. Y.

doi:10.15421/2019_24

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…The negative effect of abiotic and biotic environmental factors, against the background of climate changes, in the conditions of Ukraine is inevitably reflected in the condition of the soil (Savosko et al, 2018), vegetation (Lykholat et al, 2018a(Lykholat et al, , 2018bNazarenko et al, 2018), animals (Boyko & Brygadyrenko, 2016;Faly et al, 2017;Didur et al, 2019;Pokhylenko et al, 2019) and significantly affects the health of the population (Kotsariev et al, 2001;Pertseva et al, 2008Pertseva et al, , 2012Lykholat et al, 2016). Preservation of the existing biological diversity and enlargement of its range in Ukraine is possible using relic species, including Ginkgo biloba L. This plant is a relic tree which has been preserved in natural conditions only in China.…”

Section: Introductionmentioning

confidence: 99%

Morphogenesis and vitality of seedlings of Ginkgo biloba in outdoor conditions

Kovalenko

Клименко

Мельник

et al. 2020

Regul. Mech. Biosyst.

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Ginkgo biloba L. is a relic tree that is preserved in natural conditions only in China. In the North-East Ukraine ginkgo is only in the process of introduction, but in certain places ginkgo trees are grown for decorative purposes which show high vitality. Therefore a relevant and promising task is the creation of industrial plantations of ginkgo for collection of its leaves. The objective of the study was morphological peculiarities of ginkgo plants and their vital condition depending on the calendar age of the seedlings at the stage when they were transplanted into the soil. For growing ginkgo, in our studies, a combined two-stage system was approbated, according to which seedlings were grown in greenhouses during 2–3 years, and then moved into soil outdoors. In our study, as planting material we used seedlings of ginkgo from a plant nursery (greenhouse) of Sumy National Agrarian University planted in 2014 and 2015. Seedlings were planted in the soil in early spring. Seedlings for growth completion were planted in rows with inter-row distance of 0.8 m and distance between the plants measuring 2.5–3.0 m. We studied the condition of the seedlings in two variants: variant 1 – three-year old seedlings obtained in the greenhouse were transplanted in spring 2018; variant 2 – two-year old seedlings obtained in greenhouse were transplanted in spring 2017. Comparative morphometric analysis and evaluation of vitality of these plants was performed in August 2019. Both groups of seedlings were five years old at the time of survey. For evaluation of morphometric structure of the ginkgo seedlings and their vital condition we used randomized selections of specimens in amount of up to 30 from plantations of variants 1 and 2. Analysis of the plants was conducted during the end of the vegetative period of 2019, when active growth of the plants stopped. Four main parameters of the plants were recorded: height, value of annual increment, diameter of the stem near the root neck and the number of leaves. Vital condition of the seedlings was evaluated on the basis of algorithm of vital analysis. Vitality of each seedling was evaluated by the coefficient of Q vitality, value of which was in interval from 0 to 1.0. Depending on the value of Q the seedlings were divided into five classes of vitality: 0–0.2 – cc (specimens of the lowest vitality), 0.2–0.4 – c (low vitality), 0.4–0.6 – b (average vitality), 0.6–0.8 – a (high vitality), 0.8–1.0 – aa (specimens with highest vitality). Comparative analysis of morphological peculiarities of the ginkgo seedlings revealed that two-year plants transplanted outdoors from the greenhouse had higher annual increment of the main stem, diameter of stem and number of leaves. Vital condition of such seedlings was the highest and was evaluated using Q index, which ranges between vitality of classes b to aa. This allows recommending a two-stage scheme of growing seedlings of ginkgo in North-East Ukraine. The optimum age for transplanting seedlings from greenhouses to open soil is two years.

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Section: Introductionmentioning

confidence: 99%

Morphogenesis and vitality of seedlings of Ginkgo biloba in outdoor conditions

Kovalenko

Клименко

Мельник

et al. 2020

Regul. Mech. Biosyst.

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“…Climate is the key environmental factor which determines the ontogeny of plants and their geographical distribution (Ramirez-Valiente et al, 2015), so any variations in climate entail changes in plant growth and productivity. Today, one of the urgent tasks of ecology is to find the ways that ensure the maintenance and rational use of biological diversity and productivity of ecosystems (Didur et al, 2018) including phytocenoses (Klymenko et al, 2017;Shcherbyna et al, 2017;Khromykh et al, , 2018b and zoocenoses (Didur et al, 2019;Lykholat et al, 2019;Pokhylenko et al, 2019), as well as improving human health (Pertseva et al, 2012;Lykholat et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Modification of the epicuticular waxes of plant leaves due to increased sunlight intensity

Lykholat¹,

Хромых²,

Дідур³

et al. 2020

Biosys. divers.

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Climatic changes observed around the world in recent years are associated with an increase in the solar radiation intensity and temperature and reduction in the humidity. Fluctuations of environmental factors significantly change the conditions for the existence of plants, which dictates the need for adaptive reactions of plant organisms at the different levels of their organization. Such dangerous processes as excessive heating of the surface of plant leaves and water loss can be prevented by the formation of a cuticle, which is a complex composition consisting of cutin and the soluble intracuticular and epicuticular waxes. We suggested that the structure, component composition and properties of the cuticle of trees undergo adaptive changes due to microclimatic conditions in different parts of the tree crown. The study was aimed at the identification and evaluation of light-induced differences in the accumulation and composition of leaf epicuticular waxes of Ulmus trees (native U. minor Mill. and alien U. pumila L.), and was conducted in 2018–2019 in Dnipro city located in the steppe zone of Ukraine. Analysis of the waxes’ chloroform extracts was carried out using GC Shimadzu 2010 PLUS equipped with a flame ionization detector and capillary column SP-2560. The highest amount of epicuticular waxes (12.23 ± 0.39 µg/cm2) was on the sunlit leaves of U. pumila, and wax deposits on the sunned leaves exceeded twice those on the shaded leaves in both U. minor and U. pumila. Long-chain hydrocarbons detected in the epicuticular waxes of both elm species were represented by free fatty acids, aldehydes, alcohols, and n-alkanes in various ratios. In the epicuticular waxes of U. minor, fatty acids dominated both on shaded and sunned leaves, while alkanes together with alcohols were the main components in U. pumila waxes, especially on the sunlit leaves. According to our results, local high illumination of leaves in the crown of both elm species caused increase in share of long-chain alkanes (1.2–1.9 times), but simultaneous reduction of the content of free fatty acids (1.5–16.8 times) in the epicuticular waxes’ composition. General patterns of the leaf epicuticular waxes’ modification due to increased solar radiation and air temperature can indicate the adaptive metabolic responses of woody plants to changing climatic conditions.

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“…The environmental effects of different nature xenobiotics and arid climate in the Steppe Dnieper negatively influence on all elements of ecosystems: soil, in particular, devastated (Savosko, 2011;Savosko et al, 2018), plant metabolism (Myitsyik & Lykholat, 2000;Grygoryuk et al, 2014;Lykholat et al, 2017Lykholat et al, , 2018Opanasenko et al, 1998) and animal organisms (Andrusevich et al, 2018;Lykholat et al, 2016Lykholat et al, , 2018Lykholat et al, , 2019Pokhylenko et al, 2019), which as result has a adversely impact on health population (Pertseva et al, 2007(Pertseva et al, , 2008Yermishev et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Industrial characteristics and consumer properties of Chaenomeles Lindl. fruits

Lykholat¹,

Хромых²,

Lykholat³

et al. 2019

Ukr J Ecol

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The comparative analysis of the fruit and seed capacity of Chaenomeles Lindl., grew in the botanical garden of the Oles Honchar Dnipro National University, was carried out. It is shown that all studied taxa undergo a complete vegetation cycle. According to our observations, the duration of the growing season is as follows: the smallest in Chaenomeles japonica, the longest in C. × superba and C. maulei, the longest in C. speciosa, C. cathayensis and C. californica. Seed length in Chaenomeles plants ranged from 4.2 ± 0.10 mm (C. japonica var. maulei) to 8.5 ± 0.25 mm (C. сathayensis). Seed widths varied from 4.1 ± 0.32 mm (C. cathayensis) to 11.1 ± 0.10 mm (C. japonica var. maulei). According to the results obtained, the average number of seeds in one fruit of different Chaenomeles species differed, decreasing in the following order: C. cathayensis, C. speciosa > C. × californica > C. × superba > C. japonica > C. japonica var. maulei. Most of the Chaenomeles genus representatives were found to be in a good condition: C. japonica var. maulei vitality was estimated at 7 balls, C. japonica and C. × superba – 6 balls. This index is slightly lower for C. speciosa, C. × californica and C. cathayensis as 5 and 4 balls, respectively. It should be noted that the highest vitality was shown by C. japonica var. maulei, which was introduced in the Botanical Garden of DNU in 1955. In research, considerable attention has been paid to the antioxidant system, which is a powerful mechanism preventing the development of avalanche-free and radical peroxide reactions in living organisms. The antioxidant capacity of Chaenomeles fruits, determined in the range from 565.8 ± 15.7 (C. speciosa) to 1121.7 ± 27.5 (C. cathayensis) mg UAE / 100 g DW, can be considered quite high. The overall antioxidant capacity was highest for C. cathayensis fruits (1121.7 ± 27.5 mg AE / 100 g DW), which exceeded the indexes of other species by 1.2–2.0 times. The presence of antioxidants in raw materials and finished products provides for the prevention of their deterioration, reduction of losses, increase the shelf life and release of high quality products, retaining for a long time the characteristic features inherent in fresh, complete products. High taste qualities are characteristic of C. speciosa and C. × californica. Considering the large assortment of Chaenomeles, representatives differing in their biological, physiological and nutritional properties, we consider it promising to introduce their use in the food industry to obtain functional products with high consumer properties, namely, high content of antioxidants, catering for a variety of dishes or for exotic flavors, as well for direct consumption by the population of useful fruits with different flavors.

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Morphological variability of Rossiulus kessleri (Diplopoda, Julida) from different biotopes within Steppe Zone of Ukraine

Cited by 9 publications

References 12 publications

Morphogenesis and vitality of seedlings of Ginkgo biloba in outdoor conditions

Morphogenesis and vitality of seedlings of Ginkgo biloba in outdoor conditions

Modification of the epicuticular waxes of plant leaves due to increased sunlight intensity

Industrial characteristics and consumer properties of Chaenomeles Lindl. fruits

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