Browsing by Author "Sarsekova D."

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Accumulation of heavy metal pollution caused by traffic in forest trees in the park of Kerey and Janibek Khans of the city of Nur-Sultan, Kazakhstan
(2021-01-01) Ayan S.; Sarsekova D.; Kenesaryuly G.; Yilmaz E.; Gülseven O.; Şahin İ.
Air quality in Nur-Sultan, the fast-growing new capital city of Kazakhstan, has been poorly investigated. This research was carried in Kerey and Janibek Khans Park in Nur-Sultan, the capital city of Kazakhstan, which is affected by “different traffic density” on the roads. Three different categories of contamination (i) high pollution (distance from the main road 10–15 m), (ii) moderate pollution (distance from the side road 15–30 m), and (iii) low pollution (distance from the source of contamination 30–80 m) at different levels resulting from urban transportation were examined. The aim of the study is to determine the pollution accumulation amounts of Ni, Cd, Pb, Cr, Li, Co, Fe, and Zn in five different tree species: Norway spruce (Picea abies /L./ H. Karst.), blue spruce (Picea pungens Engelm.), Scots pine (Pinus sylvestris L.,), Siberian larch (Larix sibirica Ledeb.), and silver birch (Betula pendula Roth). Significant differences in Ni, Cd, Pb, Cr, Li, Co, Fe, and Zn accumulation amounts were determined between three different parts of the park exposed to different levels of contamination. Approximately twice higher Ni, 2.3 times Cd, 3.3 times Pb, 2.7 times Co, 1.6 times Zn accumulation were determined in the area exposed to high pollution than in the parts of the park exposed to low pollution. Cd deposition in the area exposed to high contamination was higher in silver birch than in Scots pine and Norway spruce, while Cr and Co deposition values were higher in Norway spruce than in birch and Scots pine.
Correction: Sarsekova D, Ayan S, Talgat A, 2020. Ectomycorrhizal Flora Formed by Main Forest Trees in the Irtysh River Region of Central and Northeastern Kazakhstan
(2021-01-01) Sarsekova D.; Ayan S.; Abzhanov T.
Ectomycorrhizal flora formed by main forest trees in the Irtysh river region of central and northeastern Kazakhstan
(2020-01-01) Sarsekova D.; Ayan S.; Talgat A.
In this study, the aim was to determine and identify symbiotically living ectomycorrhizas of the main tree species forming forests in central and northeastern Kazakhstan. Surveys were conducted on the right bank of the Irtysh River in a mixed forest of Pinus sylvestris, Picea obovata and Betula pendula trees. The collection was formed and the primary identification of voucher samples of fruiting bodies of macromycetes collected as ectomycorrhiza forming fungi was completed. In the collection and species identification of fruiting bodies, standard methods were used. A total of 30 ectomycorrhizas belonging to Agaricomycetes were identified. The distribution of 30 species into families is as follows: Suillaceae (8), Russulaceae (7), Cortinariaceae (4), Boletaceae (3), Tricholomataceae (2), Amanitaceae (1), Cantharellaceae (1), Gomphaceae (1), Gomphidiaceae (1), Paxillaceae (1), and Bankeraceae (1). The richest genus on account of the number of species was Suillus (8). Concerning the woody host species, 17 mycorrhizas were determined to build symbiosis with P. sylvestris, 8 mycorrhizas with B. pendula, 6 mycorrhizas with Populus tremula, 1 mycorrhiza with P. obovata, 1 mycorrhiza with Quercus robur, 1 mycorrhiza with Salix sp., and 1 mycorrhiza with Pinus densiflora Siebold and Zuccarini. Ectomycorrhizas should be used as a major performance-enhancing tool in afforestation and restoration studies in the Irtysh River basin under extreme ecological conditions and under climate change effects.
Ectomycorrhizal Symbionts of Scots Pine and Silver Birch Forest Ecosystems in the Natural Reserve Ertis Ormany in Kazakhstan
(2023-01-01) Sarsekova D.; Vaishlya O.; Nurlabi A.; Ayan S.
Preliminary results of the effect of artificial mycorrization on the growth of siberian spruce (Picea obovata ledeb.) seedlings and soil properties
(2021-09-30) Sarsekova D.; Ayan S.; Abzhanov T.; Nurlabi A.
In this study, we investigated the effects of artificial mycorrhiza application on soil properties and seedlings growth of Siberian spruce (Picea obovata Ledeb.) in the Novodolinsky nursery in Kazakhstan. Before transplanting, the roots of 3-years old seedlings were subjected to the mycorrhizal solution. The mycorrhizal strain includes mycelium of fungi of the genera Suillus Gray, Boletus Bull., Paxillus Fr., and Cortinarius (Pers.) Gray. The results showed that by applying the mycorrhizal activator, there were minor changes in the absorbed bases and soil pH. The value of phosphorus in the A horizon increased twice. The survival rate of the mycorrhizal seedlings is on average 2.4% higher than in the control. Significant differences were found in terms of the variables of the yellowing needles on seedlings, the formation of buds on young shoots, and the lignified stem of the seedlings. Particularly, in late August observation, mycorrhizal seedlings showed 14.2% more lignification. Due to the lignification, seedlings might be more resistant to stress factors such as drought, frost. These preliminary results are giving the information about adaptation to extreme ecosystems of the seedlings.