Yazar "Yalcin, Ibrahim Ertugrul" seçeneğine göre listele
Listeleniyor 1 - 8 / 8
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe A case study performed in Kucukcekmece Lagoon channel/Istanbul, Turkey: how the heavy metal contamination and the seasonal variations on phytoplankton composition influence water quality(Desalination Publ, 2021) Yilmaz, Nese; Ozyigit, Ibrahim Ilker; Dogan, Ilhan; Demir, Goksel; Yalcin, Ibrahim ErtugrulIn this work, the experiments related to seasonal variations of phytoplankton composition and heavy metal contamination along with some water quality parameters were carried out throughout the channel, serving as a waterway between Lake Kucukcekmece and the Sea of Marmara. Considered as a Class B wetland, the lake has been stayed within the metropolitan area of Istanbul overtime. The samples from the surface water were taken monthly by using Nansen bottles at 5 sampling sites through the period of March-November. After experimental procedures, a total of 46 taxa were recorded belonging to Bacillariophyta (20), Charophyta (4), Chlorophyta (6), Cryptophyta (1), Cyanobacteria (4), Euglenozoa (3), and Miozoa (8) divisions. The phytoplankton densities were found to be varied from 76 individual cm' to 3,283 individual cm(-3) throughout the channel and the variation for chlorophyll-a contents was between 0.99-55.32 mg m(3) . From our results, the heavy metal and nutrient concentrations were found to be as: 0.78-1.55 mg L-1 for Al, 4.2813.88 mg L-1 for B, 1,201-1,693 mg L-1 for Ca, 45.20-120.40 mu g L(-1 )for Cd, 432.40-1,398.40 mu g L-1 for Cr, 232.00-1,043.00 mu g L-1 for Cu, 663.40-2,315.60 mu g L-1 for Fe, 626.20-1,435.20 mg L-1 for K, 738.001,113.00 mg L-1 for Mg, 1,882-6,084 mg L-1 for Na, 30.00-317.80 mu g L-1 for Ni, 17.40-158.00 mu g L-1 for Pb, and 440.20-1,186.20 mu g L-1 for Zn. According to the data obtained in this study, the area where research conducted was determined as having eutrophic characteristics.Öğe Concentrations of plant mineral nutrients and potentially toxic elements in some medicinal plants in the Asteraceae, Fabaceae, and Lamiaceae families from Southern Turkiye: insights into health implications(Taylor & Francis Inc, 2023) Karahan, Faruk; Ozyigit, Ibrahim Ilker; Yalcin, Ibrahim Ertugrul; Hocaoglu-Ozyigit, Asli; Erkencioglu, Bedriye Nazli; Ilcim, AhmetMedicinal plants have been used throughout history in the treatment of many diseases in traditional Anatolian folk medicine as well as all over the world. The rapid increase in agricultural and industrial activities due to the increasing population around the world causes air, water and soil pollution, and accumulation of potentially toxic elements in medicinal plants. In this study, plant mineral nutrients and potentially toxic elements analyzes were carried out in 38 plant species belonging to the medicinally important families Asteraceae, Fabaceae and Lamiaceae. The percentage of macroelements (in %) varies between 0.20 and 1.46 for calcium, 0.08 and 1.35 for potassium, 0.04 and 0.24 for magnesium, 0.01 and 0.34 for sodium, while concentrations of microelements and potentially toxic elements (in mg kg(-1)) vary between 3.21 and 721.28 for aluminum, 41.33 and 231.01 for boron, 0.01 and 0.61 for cadmium, 1.09 and 47.79 for chromium, 12.90 and 43.13 for copper, 17.75 and 1109.39 for iron, 51.50 and 715.48 for manganese, 0.12 and 9.42 for nickel, 1.58 and 22.11 for lead and finally 80.82 and 260.08 for zinc. In addition, estimated daily intake (EDI), target hazard quotient (THQ), and hazard index (HI) for potentially toxic elements, and Recommended Dietary Allowance (RDA) values for mineral nutrients were calculated. In some samples in industrial and mining areas, accumulation of some potentially toxic elements was slightly above the permissible limits set by the World Health Organization (WHO). In Summary, the importance of collecting medicinal plants from protected areas such as mountainous rural areas, far from mining, close to clean rivers, and regular control of values with potentially toxic elements analyzes for human health has been understood once again.Öğe AN ECOLOGICAL STUDY OF ENDEMIC PLANT POLYGONUM ISTANBULICUM KESKIN AND ITS ENVIRONS(Pakistan Botanical Soc, 2013) Altay, Volkan; Ozyigit, Ibrahim Ilker; Keskin, Mustafa; Demir, Goksel; Yalcin, Ibrahim ErtugrulIn this study, some ecological features of narrow endemic Polygonum istanbulicum Keskin, which was established as a new plant species in 2009, and its environs were examined. There are 41 known Polygonum taxa in Turkey and the genus is represented by 14 species in Istanbul. Plant and soil samples were collected from the place where the species merely lives in the world (Basibuyuk Forest, Maltepe District, Istanbul/Turkey). Plant and soil samples were collected by using standard methods and root, branch, leaf and soil mineral nutrients (Ca, Cu, K, Mg, Mn, N, P, Na, Zn), were measured. Additionally, soil texture, structure and other physical and chemical measurements such as pH, total protein and electrical conductivity (EC) were determined.Öğe An ecological study of endemic plant Polygonum istanbulicum Keskin and its environs(2013) Altay, Volkan; Ozyigit, Ibrahim Ilker; Keskin, Mustafa; Demir, Goksel; Yalcin, Ibrahim ErtugrulIn this study, some ecological features of narrow endemic Polygonum istanbulicum Keskin, which was established as a new plant species in 2009, and its environs were examined. There are 41 known Polygonum taxa in Turkey and the genus is represented by 14 species in Istanbul. Plant and soil samples were collected from the place where the species merely lives in the world (Başi{dotless}büyük Forest, Maltepe District, Istanbul/Turkey). Plant and soil samples were collected by using standard methods and root, branch, leaf and soil mineral nutrients (Ca, Cu, K, Mg, Mn, N, P, Na, Zn), were measured. Additionally, soil texture, structure and other physical and chemical measurements such as pH, total protein and electrical conductivity (EC) were determined.Öğe An experimental study on the effects copper and lead on the seedlings of some economically important vegetable species(Univ Agr Sci & Veterinary Med Cluj-Napoca, 2023) Candan, Feyza; Ozturk, Munir; Altay, Volkan; Yalcin, Ibrahim ErtugrulBioaccumulation of toxic heavy metals in vegetables is closely related to the problems of safety concerns as they negatively affect plants in particular those consumed by the humans. Among the food systems the vegetables are the most noticeable foods affected by environmental pollution. Vegetables can take up the metals like copper and lead and store them in excessive levels. Keeping this in view this investigation was undertaken to study the effect of copper and lead concentrations (20, 40, 80, 160, 240, 320, 640, and 1280 mu M) and assess their toxic affects on germination and seedling growth at early stages of eight vegetable cultivars; kidney bean, peas, black-eyed bean, artichoke, kale, lettuce, rocket and radish. The results were evaluated by multivariate analysis of variance and Pearson correlation statistical analysis. Our results indicate that the seeds of the vegetables studied by us are generally tolerant to both copper as well lead, except higher concentration exposures which showed no improvement when applied to artichoke (for Cu 1280 mu M) and lettuce seeds (Cu 1280 mu M; Pb 1280 mu M). An application of copper and lead ended up with a decrease in barium, calcium, iron, magnesium, manganese, sodium and zinc content in all seedlings studied. In all vegetables exposed to copper and lead a promotion in copper and lead accumulation was recorded. There was a decrease in nutrient element intake which interrupted the mineral element uptake in the seedlings.Öğe Heavy Metal Levels and Mineral Nutrient Status in Different Parts of Various Medicinal Plants Collected from Eastern Mediterranean Region of Turkey(Humana Press Inc, 2020) Karahan, Faruk; Ozyigit, Ibrahim Ilker; Saracoglu, Ibrahim Adnan; Yalcin, Ibrahim Ertugrul; Hocaoglu-Ozyigit, Asli; Ilcim, AhmetMedicinal plants have been used for treatment of many diseases since the ancient times with traditional knowledge being transferred from generation to generation. However, in recent years, many natural habitats have been contaminated due to increased anthropogenic activities. Plants which are exposed to heavy metal toxicity may experience several serious problems. Furthermore, the inclusion of these plants into the food chain poses a threat to human health as well. Additionally, presence of heavy metals directly effect mineral nutrition and consequently the food quality. The aim of this study herewith is to determine the heavy metal content and mineral nutrient status of some medicinal plants to have insight on their health repercussions on plants and humans. The concentrations of Al, B, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn in commonly used parts (root, rhizome, seed, resin, gall, fruit) especially for remedial purposes of 17 medicinal plants collected from Turkey were analyzed by ICP-OES. The measured values for concentrations from lowest to highest were (in mg kg(-1)) 30.983-368.877 for Al, 13.845-186.015 for B, 1335.699-11213.951 for Ca, 0.016-0.653 for Cd, 0.379-30.708 for Cr, 23.838-90.444 for Cu, 78.960-1228.845 for Fe, 1035.948-6393.491 for K, 83.193-2252.031 for Mg, 12.111-362.570 for Mn, 278.464-1968.775 for Na, 1.945-35.732 for Ni, 0.796-17.162 for Pb and 166.910-395.252 for Zn. Overall, heavy metal concentrations in medicinal plants collected nearby industrial regions, mining and farming sites, were found to be in slightly higher levels. This shows us that it is of crucial importance that the areas where medicinal plants are collected are clean especially by means of heavy metals for the reason that these plants can cause more harm than the benefits they may provide if they are contaminated.Öğe Investigation of water-soil-plant relationships based on hazardous and macro-micro element concentrations on Orontes River, Turkiye(Taylor & Francis Inc, 2023) Yalcin, Ibrahim Ertugrul; Altay, VolkanArundo donax and Phragmites australis were examined in 4 different periods (June and October for 2 years), heavy metal and mineral element accumulations in plants were evaluated, and water-soil-plant relationships were revealed. Element distributions, bioaccumulation factors (BAF) and translocation factors (TF) in different parts of the investigated plant species were also determined. BAFs of elements calculated by using the concentration values in underground parts and sediment samples were between 1.02 and 4.96. While the highest TF was determined as 8.07 for Zn between washed leaf and stem in A. donax, the lowest TF was determined as 0.05 for Fe between stem and underground part. Corresponding highest and lowest TFs for P. australis were 11.80 for Cu between washed leaf and stem, and 0.02 for Fe between stem and underground part, respectively. The results were supported by MANOVA statistical analyzes. Additionally, the macro-micro elements and heavy metal accumulation levels in the parts of the Orontes River ecosystem were significantly higher in the fall periods compared to the spring periods. Our research revealed that the versatile accumulation properties and high accumulation ability of A. donax for Cd, Cr, and Ni and of P. australis for Cd, Co, Cu, Ni, Pb, and Zn. NOVELTY STATEMENTThe Orontes River passes through the regions of three different countries with high population density and developed economies. This study presents the current state of the relationship between the element types and their concentrations in the sediments in the Orontes River ecosystem and the ecophysiological parameters of the river. In this study, the focus was on the Turkiye-Hatay region of the Orontes River, the water-soil-plant relationship in this region was revealed in detail, and valuable data were compiled for researchers who will conduct research on the river ecophysiology.Öğe Trace Elements in the Soil-Plant Systems of Copper Mine Areas-A Case Study From Murgul Copper Mine From the Black Sea Region of Turkey(Tech Science Press, 2019) Ozturk, Munir; Altay, Volkan; Kucuk, Mahir; Yalcin, Ibrahim ErtugrulThis study presents a case study on the heavy metal analysis of soil and plant samples around the Murgul copper mine, one of the first and most important mining areas in Turkey. An attempt has been made to investigate the status of trace elements like Al3+, Fe2+, Cu2+, Zn2+, Pb2+, Ni2+, Co2+ and Cd2+ in soils and plants. The sampling localities were taken from 500 m, 600 m, and 1000 m altitudes around the factory and at 1400 m in the forest zone. The aboveground parts and foliage ash of Silene compacta, Tussilago farfara, Smilax excelsa, Rhododendron ponticum, R. luteum, and herbal mix were analysed. The results of analysis have revealed the minimum and maximum concentrations measured in the plants as follows; aluminium (20-8985 mg kg(-1)), cadmium (0.0-0.5 mg kg(-1)), cobalt (0.0-5.5 mg kg(-1)), copper (0.0-347.5 mg kg(-1)), iron (25-9320 mg kg(-1)), lead (2-51 mg kg(-1)), nickel (1.5-16.5 mg kg(-1)), and zinc (13.0-221.0 mg kg(-1)). In the soil the concentrations of aluminium, cadmium, cobalt, copper, iron, lead, nickel, and zinc vary between 33-457, 0.0-0.0, 0.0-0.4, 0.1-88.7, 14-50, 0.3-4.1, 0.2-0.8, and 4.0-20.3 mg kg(-1) respectively. These findings enlighten the fact that copper is generally toxic in the soils as well as plants. Silene compacta has been recorded as a high copper accumulator, behaving as a healthy plant on the polluted sites of the area alongside the Murgul creek (especially at 600 m). This study stresses the fact that it is imperative to assess and monitor the levels of heavy metals in the environment due to anthropogenic activities, including mining, for evaluation of human exposure and for sustainable environment.
