WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7150
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Article Citation - WoS: 6Citation - Scopus: 3Determining Element Accumulations in Turkish Red Pine Used as a Bioindicator for Estimating of Existing Pollution on Both Sides of Bosphorus in İstanbul(Parlar Scientific Publications, 2020) Yalçın, İbrahim Ertuğrul; Özyiğit, İbrahim İlker; Doğan, İlhan; Demir, Göksel; Yarcı, CelalEvergreen Turkish red pine tree shows wide distribution around Aegean and Mediterranean regions in Turkey. Herein work investigated the mineral nutrient status of Turkish red pine as a bioindicator for revealing the impact of existing pollution on both sides of Bosphorus in Istanbul. For this, Al, B, Ca, Cu, Fe, K, Mg, Na and Zn concentrations were determined in unwashed and washed leaves and barks of the plant and soil samples. The standard procedures were applied and the determinations of element concentrations in all samples were done using ICP-OES. The sample collections were performed at five different locations in Istanbul, 4 from the Bosphorus region and one from Prince Island (as control). The highest element concentrations (in mg kg(-1) DW) in plant parts were recorded between 109.10 +/- 1.68 and 120.58 +/- 1.75 for Al, 10.18 +/- 0.14 and 12.52 +/- 0.17 for B, 8765.42 +/- 92.41 and 9600.69 +/- 102.22 for Ca, 10.91 +/- 0.13 and 11.73 +/- 0.16 for Cu, 226.85 +/- 3.01 and 254.07 +/- 3.20 for Fe, 4050.69 +/- 48.51 and 4477.08 +/- 52.34 for K, 794.58 +/- 9.82 and 878.33 +/- 10.07 for Mg, 1255.14 +/- 14.67 and 1374.31 +/- 18.55 for Na and 34.92 +/- 0.49 and 37.25 +/- 0.57 for Zn while the highest element concentrations (in mg kg(-1) DW) in co-located soil samples were measured between 5470.42 +/- 66.48 and 6046.25 +/- 73.54 for Al, 14.86 +/- 0.20 and 16.43 +/- 0.29 for B, 4600.56 +/- 55.22 and 4984.86 +/- 62.71 for Ca, 22.33 +/- 0.36 and 25.07 +/- 0.48 for Cu, 5500.01 +/- 71.05 and 5953.06 +/- 80.16 for Fe, 1819.44 +/- 23.51 and 2029.17 +/- 27.04 for K, 4108.75 +/- 50.77 and 4714.17 +/- 58.09 for Mg, 111.11 +/- 1.82 and 122.08 +/- 2.45 for Na and 117.10 +/- 2.33 and 126.86 +/- 2.61 for Zn.Conference Object Determination of Metal Deposition and Its Effects on Mineral Nutrient Uptake Status of Pinus Brutia Ten. for Assessment of Pollution Impact in Its Habitat-Istanbul(Global Nest, 2013) Yalçın, İbrahim Ertuğrul; Demir, Göksel; Özyiğit, İbrahim İlker; Doğan, İlhan; Yarcı, CelalPinus brutia Ten. (Turkish red pine) is a widespread evergreen tree in the Mediterranean and Aegean regions of Turkey. In this study, leaf (washed and unwashed) and bark samples of Turkish red pine and its co-located soil samples were examined for the assessment of the impact of heavy metal pollution on mineral nutrient status of the plant. The samples were collected from 5 different localities; 4 from the Bosporus region and one from Prince Island (control) in 2012 vegetation period. The standard procedures were used and the determinations of heavy metals and nutrient elements (Al, B, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn) in all samples were done using Inductively Coupled Plasma Optic Emission Spectroscopy (ICP-OES). Additionally, PM2.5 and PM10 profiles of the study area were investigated. According to our measurements, the lowest and highest heavy metal accumulations and the amount of mineral nutrients (mg/kg d. wt) were varied between 28.420-115.809 and 4191.285-5776.910 for Al, 1.308-11.432 and 9.318-15.803 for B, 1604.497-9312.622 and 2457.361-4817.899 for Ca, 0.307-1.587 and 0.803-1.890 for Cd, 0.064-0.579 and 3.860-6.731 for Co, 0.853-5.445 and 12.472-22.761 for Cr, 2.063-11.292 and 8.304-24.193 for Cu, 158.090-242.056 and 4733.993-5727.813 for Fe, 88.021-4312.240 and 1231.649-1931.372 for K, 98.325-850.764 and 2668.299-4489.028 for Mg, 3.752-9.764 and 143.698-278.108 for Mn, 45.716-1315.764 and 91.225-116.795 for Na, 0.889-7.746 and 7.437-15.750 for Ni, 3.917-14.341 and 31.122-71.762 for Pb and 10.268-35.844 and 43.746-122.258 for Zn in the plant parts and soil samples, respectively. The mass concentrations of fine (PM2.5) and coarse (PM10) mode aerosols varied from 11 to 27 and 37 to 68 mu g/m(3) at study area, respectively. The data revealed that P. brutia is capable of accumulating considerable amounts of metals and mineral nutrient uptake pattern was not altered extensively because of metal deposition in the plant showing relatively less contamination risk in the area. Finally, it was proven that P. brutia is a suitable organism to be used as a biomonitoring tool for conducting research on heavy metal pollution.Conference Object Citation - WoS: 3Cadmium-Induced Physiological and Genotoxic Alterations in Bryophyllum Daigremontianum(Global Nest, 2013) Özyiğit, İbrahim İlker; Yılmaz, Seçil; Doğan, İlhan; Sakcalı, Mehmet Serdal; Kekeç, Güzin; Demir, Göksel; Severoğlu, ZekiWhen evaluating the negative impacts of heavy metals in the environment, plants can be used as biological indicators in assessing damage done by bio-accumulation of heavy metals. For detecting the genotoxic effects of heavy metals, the RAPD-PCR technique is applied in plants. In this study, Blyophyllum daigremontianum was used as a bio-indicator for Cadmium (Cd) pollution. B. daigremontianum plantlets were obtained from bulbiliferous spurs. They were grown singly in standard pots and each of the experimental groups of 5 replicates were watered daily with Hoagland solution (20 ml) containing 0, 50, 100, 200 and 400 mu M Cd for two months. Plantlets were harvested at the end of the two-month experimental period and photosynthetic pigment (chlorophyll a, chlorophyll b, total chlorophyll, chlorophyll a/b and carotenoids) contents of B. daigremontianum in response to Cd stress were investigated. The comparison between unexposed and exposed B. daigremontianum groups revealed gradual reductions of photosynthetic pigment contents (-40.57% for chlorophyll a, -37.63% for chlorophyll b, -36.27% for total chlorophyll, -20.58% for chlorophyll a/b and -37.66% for carotenoids) at 400 pM and a genomic instability as Cd concentration increases. The results indicated that changes in RAPD-PCR profiles following Cd treatments included a variation in band intensities, a loss of normal bands, and the appearance of new bands compared to unexposed plantlets. Cd concentrations of the collected samples were measured by employing ICP-OES during the study. The concentrations of Cd at 400 mu M Cd treatment were increased significantly in leaves (-5.03 fold), stems (-6.28 fold) and roots (-3.90 fold) of B. daigremontianum. The present study evidences that as an investigation tool for environmental toxicology, the RAPD technique can be useful and can be applied as a suitable biomarker assay for the detection of genotoxic effects of Cd pollution on plants.Article Evaluation of Aluminum Stress Induced Antibacterial and Antifungal Activities in Roman Nettle(Parlar Scientific Publications, 2019) Özyiğit, İbrahim İlker; Doğan, İlhan; Yalçın, İbrahim Ertuğrul; Severoğlu, ZekiIn this current work, Roman nettle (Urtica pilulifera L.), a traditional medicinal plant that is very common and widespread species throughout Asia, Europe, and Northern Africa, was used as a model plant to investigate changes in antimicrobial activity following the application of aluminum stress. U pilulifera seedlings were grown in growth-room conditions and 0, 100, and 200 M AlCl3 were applied to the plants together with Hoagland solution (20 ml) for two months. The antimicrobial activities were tested against nine strains of bacteria (Salmonella sp., Staphyllococcus aureus, Escherichia coli, E. coli O157:H7 and Bacillus cereus) and fungus (Penicillum sp., Saccharomyces cerevisiae, Candida tropicans and C. albicans) by using the disc diffusion and agar well methods. The accumulated Al was measured by using ICP-OES in the leaves of studied plant samples. Additionally, a control group (water + 11.31 mg l(-1) Al) was prepared and applied to selected bacteria and fungi in order to understand the reason for obtained antimicrobial activities of Roman nettle is whether because of the compounds isolated from nettle leaves exposed to Al stress, or Al itself accumulated in leaves. The data proved that inhibitory antimicrobial effects were altered in U pilulifera upon the application of Al stress, especially on fungi species.Article Citation - WoS: 3Ecophysiological Properties of Turkish Endemic Centaurea Consanguinea Dc.(Parlar Scientific Publications, 2019) Eskin, Bülent; Özyiğit, İbrahim İlker; Doğan, İlhan; Demir, Göksel; Yarcı, Celal; Serin, MemduhThis physiological and ecological study was performed on Centaurea consanguinea DC. to acquire information about certain characteristics (bioclimatic, edaphic, topographic, biotic etc.) of its habitat and distribution in Turkey, determine the requirements for germination, explore the soil-plant relations and obtain data on certain aspects of its population biology. Plant and co-located soil samples were collected from Amasya and Havza District (Samsun) in Turkey using standard methods. Various analyzes were employed for determining of physical, chemical and biological properties of the plant species and its co-located soils including pH, total protein and electrical conductivity (EC), soil texture, contents of mineral nutrition and other physical and chemical parameters and the results were presented. Nutrient amounts (in %) were found to be in the ranges of 0.01-0.007 for N, 0.0008-0.001 for P, 0.01-0.09 for K, 0.0002-0.0003 for Na in the soils and 2.25 for N, 0.0068 for P, 0.07 for K and 0.02 for Na in the plant, respectively. Also, it was observed that germination ratios of the seeds were depended on various factors.Book Part Citation - WoS: 10Citation - Scopus: 16Plant-Microbe Interactions in Phytoremediation(Elsevier Ltd., 2014) Özyiğit, İbrahim İlker; Doğan, İlhanOur atmosphere, water resources and soil are becoming increasingly contaminated with inorganic and organic compounds as a result of anthropogenic-driven inputs, mainly from industry, mining, motorized traffic, agriculture, logging and military actions. Alleviation and prevention of environmental pollution can be achieved by utilization of plants and their associated microbes. Recent advances in plant-microbe interaction research revealed that plants are able to shape their rhizosphere microbiome through active secretion of substrates that are known to vary between plant species. Soil-borne microorganisms such as actinobacteria, algae, protozoa and different types of bacteria having different capabilities of functional activities can vary extensively in soils and occur in associations in the rhizosphere of plants. Microbial associations are known to affect mobility and availability of substances to the plant through the release of chelating agents, acidification, phosphate solubilization and redox changes and exudates derived from the plant can help to stimulate the survival and action of these microorganisms. A broad knowledge about the mechanisms in plants for the uptake, translocation, storage, and detoxification of contaminants, and interactions between plants and microorganisms are critical in developing technologies and best management practices for environmental clean-up. A comprehensive understanding of interactions between plants and rhizospheric microorganisms in the rhizosphere and plant-based processes will provide new opportunities to develop more efficient plants and better management practices for removal of contaminants. This chapter reviews plant-microbe interactions in phytoremediation with particular reference to the microbial dynamics in the rhizosphere of plants growing on contaminated soils.