Sürdürülebilir Kalkınma Amaçları
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- ArticleAçık Erişim2019Bu çalışma ile Malatya’da (Kenar Semt, Şehir İçi, Çevre Yolu, Sanayi ve Şaynahan Beldesi) olmak üzere beş farklı bölgeden Morus alba L. (Akdut) bitkisine ait yaprak ile meyve ve yetiştikleri bölgeden toplanan toprak örneklerinde (Zn, Pb, Co, Ni, Fe,
Karadeniz, Mahmut; Osma, Etem; Varol, Tuğçe
The accumulation of heavy metals (Zn, Pb, Co, Ni, Fe, Cu, Cr, Mn, Al, Cd) on Morus alba L. (Akdut) leaf, fruit and other accompanied growth things, and in soil samples collected from five different localities such as (Suburban, City Center, Roadside, Industrial area and Şaynahan) in Malatya was researched in this study. First, collected leaves of the plants were separated as washed and unwashed. Then, all the samples had been pretreated such as washing, drying, powdering and heavy metal concentrations were analyzed in ICP-MS device. Obtained data was compared statistically and significant differences were determined between the regions SPSS 22 Statistical Package Program. When we evaluate the localities in general, it is determined that the heavy metal concentrations from the samples in beltway and industrial zone are at higher levels. Especially from the samples in soil, it is seen that the accumulation of heavy metals is at noteworthy levels.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2019Accumulation of Heavy Metal in Platanus orientalis L. (Oriental Plane) Collected from Coastal Areas in İstanbul
Akbayir, Serdal; Osma, Etem; Varol, Tuğçe
In this study, heavy metal concentrations (Fe, Cu, Zn, Mn, Pb, Ni, Cr, Cd) were detected in the samples of bark, leaf and soil belonging to P. orientalis which were collected from coast sides of Fatih, Beşiktaş, Kadıköy, Tuzla, Pendik and Sarıyer district in İstanbul which is one of the most crowded metropols in the world. The aim of this study is to determine the level of heavy metal pollution in İstanbul that has the highest population and industrialization in our country. After plant and soil samples were preprocessed, the analyses of heavy metals were performed on ICP-MS. Data obtained from the parts of the plant and the soil collected from different districts was statistically evaluated on SPSS and it is detected that there are significant differences between the regions. It is also determined that there are differences between washed and unwashed leaves in terms of heavy metal concentrations. When the obtained data was examined, it is found that the concentration of Cr, Cu, Fe, Zn and Ni heavy metals were higher in the plant parts collected in Tuzla district where the organized industrial area and shipyard were produced. Consequently, it is decided that P. orientalis which commonly grows in cities can be a biomonitor to determine heavy metal contamination.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2019Acetaminophen (Paracetamol) ve Gemfibrozil’in Farklı Buğday Varyetelerinin Mineral Alımı ve H2O2 İçeriği Üzerine Etkileri
Osma, Etem; Güloğlu, Nuray; Türkoğlu, Eda; Elveren, Müjgan
Bu çalışma ile Tıbbi İlaç ve Kişisel Bakım Ürünleri (PPCPs)’nin Ahmetağa, Cemre ve Michelangelo buğday varyeteleriüzerindeki etkisi araştırılmıştır. Araştırmada günlük hayatta sıklıkla tüketilen acetaminophen ve gemfibrozil olmaküzere iki farklı tıbbi ilaç etken maddesi kullanılmıştır. Çalışma için ekim yapılacak toprağa, 50, 100 ve 250 mg olacakşekilde acetaminophen ve gemfibrozil karıştırılmıştır. İlaç etken maddesi ile karıştırılmış 650 g toprağın üzerine her birvaryeteden 7 g buğday tohumu ekilmiş, bunun üzeri ise 100 g toprak ile kaplanmıştır. Tarla kapasitesine uygun olarakbuğdaylar belirli aralıklarla sulanarak, 15 gün yetiştirildikten sonra hasat edilmiştir. Hasat edilen örneklere ekstraksiyonişlemi yapıldıktan sonra, örneklerde H2O2 içeriği belirlenmiştir. Ayrıca, buğday örnekleri ön işlemlerden geçirildiktensonra mineral element konsantrasyonları ICP-OES’te analiz edilmiştir. Kontrol örnekleri ile test örnekleri arasındakiilişki %95 güven aralığında, istatistiksel olarak ANOVA testi ile değerlendirilmiş, anlamlı farklılıklar tespit edilmiştir.Çalışmada, acetaminophen ve gemfibrozil uygulanan örneklerde konsantrasyon artışına bağlı olarak kontrol grubu ilekıyaslandığında buğdayların mineral element alımında azalma gözlenirken, H2O2 içeriğinde artış olduğu belirlenmiştir.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2019Tracking neonicotinoids following their use as cotton seed treatments
Kohl, Kristina L.; Harrell, Lauren K.; Mudge, Joseph F.; Subbiah, Seenivasan; Kasumba, John; Osma, Etem; Barman, Apurba K.; Anderson, Todd A.
Neonicotinoids are a leading class of insecticides on the global market, accounting for nearly 25%. They are widely used in both agricultural and residential settings. Causing neuron failure by irreversibly binding to the insect nicotinic acetylcholine receptor, neonicotinoids offer broad spectrum efficacy against a variety of pests. However, because they are non-selective with regard to insect species, there has been some concern with neonicotinoid use over threats to pollinators such as honeybees, and potential indirect effects to migratory waterfowl as a result of invertebrate prey population depletion. In order to study occurrence and fate of neonicotinoids (thiamethoxam and imidacloprid), we analyzed cotton leaves on plants grown from neonicotinoid-treated seeds and corresponding soil samples between cotton rows. Neonicotinoid concentration data from cotton leaves appears to be consistent with the claim that seed treatments protect plants for 3–4 weeks; by 30 days post-planting, neonicotinoid concentrations fell, in general, to 200 ng/g or lower. This represents about a 10-fold decrease from plant concentrations at approximately 2 weeks post-planting. It was found that neonicotinoids used as seed treatments remained present in the soil for months post planting and could be available for runoff. To that end, 21 playa wetlands were sampled; 10 had at least one quantifiable neonicotinoid present, three of which were classified as grassland or rangeland playas, two were urban, and the remaining five were cropland playas. In several instances, neonicotinoid concentrations in playas exceeded EPA chronic benchmarks for aquatic invertebrates. Copyright 2019 Kohl et al.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2019Effects of Acetaminophen (Paracetamol) and Gemfibrozil on Seed Development and Antioxidant Enzyme Activities in Different Wheat Varieties
Türkoğlu, Eda; Osma, Etem; Elveren, Müjgen
Acetaminophen and gemfibrozil are two pharmaceutically active agents that are commonly used in treatments. This study investigated the effects of these two substances on three wheat varieties “Ahmetağa”, “Cemre” and “Michelangelo”. Seeds are sown in petri dishes and treated with different concentrations (25, 50 and 100 µg/mL) of both substances. At the end of 5 days, root and stem developments were compared to the control groups. Then, planting pots were prepared by mixing 650 g soil with different concentrations (50, 100 and 250 mg) of gemfibrozil and acetaminophen. 7 g wheat seeds from each variety were planted on mixture and covered with 100 g soil. Plants were watered with regular intervals based on the field capacity calculation and harvested for analysis at the end of 15 days. After extraction procedure, the electrolyte leakage, and antioxidant enzyme activities for superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT) were measured. Results were statistically evaluated at 95% confidence interval based on the Duncan’s Multiple Range Test and significant differences were found. The findings demonstrated that acetaminophen and gemfibrozil treatments, in relation to the applied concentrations, retarded the root and stem developments in seeds, and increased the electrolyte leakage and antioxidant enzyme activities in plants, indicating that contamination of agricultural lands and irrigation waters by those kind of substances could cause the serious crops losses and health issues. Thus, legal arrangements should be prioritized regarding the use and disposal of these substances to minimize the environmental impacts.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2018Investigation of the Effects of Air Conditioner Waste Water on Wheat and Barley
Osma, Etem; Elveren, Müjgan; Varol, Tuğçe
Herein this study, the effects of the wastewaters that transmitted to the ecosystem from the air conditioner on the barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) plants were investigated. The soil to be planted for study was mixed at different concentrations (1/5, 2/5, 3/5) of the air conditioner wastewater except for the control group. On 650 g of soil 5 g of barley and 7 g of wheat seed were planted and covered with 100 g of soil. Wheat was irrigated at regular intervals in accordance with field capacity. The wheat was harvested after 15 days and the barley was harvested after 11 days. After weighing the harvested samples electrolyte leakage, MDA, CAT, SOD activities were determined by extraction. Along with that wheat and barley specimens were analyzed for metal concentrations in ICP-OES after pre-treatment. The relationship between control samples and samples grown at different concentrations of A/C wastewater was evaluated statistically and significant differences were determined.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2018Evaluation of Selected Pharmaceuticals on Plant Stress Markers in Wheat
Osma, Etem; Cigir, Yavuz; Karnjanapiboonwong, Adcharee; Anderson, Todd A.
Herein we report on the interactions between two common pharmaceuticals and wheat (Triticum aestivum L.) plants. Pharmaceuticals and personal care products (PPCPs) enter wastewater treatment plants from industrial and household sewers. These chemicals are not completely removed during wastewater processing, and in many countries, are being found in drinking water sources and in surface waters downstream of wastewater treatment plants. If treated wastewater effluent is re-used to irrigate crops, the potential adverse interactions between PPCPs and plants needs to be understood. β-estradiol and gemfibrozil appeared to affect wheat seedlings through oxidative stress, as indicated by increases in lipid peroxidation, hydrogen peroxide, carotenoid, and antioxidant enzyme activities. Additionally, plant cell damage in wheat seedlings was indicated by an increase in electrolyte leakage. Although our study was not designed to elucidate possible mechanisms, the changes in activity of plant enzymes in response to some pharmaceuticals is likely the consequence of oxidative stress and the initiation of pathways to protect the plant from further cell damage.
RDL Kalıcı Kaydıİncele - CorrectionAçık Erişim2018Correction to: Effects of Acetaminophen (Paracetamol) and Gemfibrozil on Seed Development and Antioxidant Enzyme Activities in Different Wheat Varieties (Iranian Journal of Science and Technology, Transactions A: Science, (2017), 10.1007/s40995-017-0386-7)
Türkoğlu, Eda; Osma, Etem; Elveren, Müjgen
The original version of this article unfortunately contained mistakes. The presentation of Figure 1 was incorrect. The corrected figure is given below.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2018Determination of genetic diversity of Sonchus erzincanicus Matthews (Asteraceae), a critically endangered plant endemic to Turkey using RAPD markers
Doğan, Nalan Yildirim; Kurt, Pinar; Osma, Etem
This study was carried out to determine the genetic structure of three Sonchus erzincanicus (one of the endemic species in Turkey that is on the edge of extinction) populations from Ekşisu, Beşsaray and Saztepe districts in Erzincan province, using Random Amplified Polymorphic DNA (RAPD) marker. In this study, 15 samples from each population were used and sixteen RAPD (Random Amplified Polymorphic DNA) produced 125 bands at a size of 250-3000 bp. Beşsaray has the maximum polymorphism rate (84.80%) among the populations, whereas Ekşisu has the minimum rate (58.40%). Beşsaray and Ekşisu were the closest populations according to Nei's genetic distance values (D=0.9671), and Ekşisu and Saztepe were the farthest populations (D=0.0639). The gene flow between populations (Nm) was calculated as 1.71, while genetic differentiation (Gst) was calculated as 0.127.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2017Tıbbi İlaçlar ve Kişisel Bakım Ürünlerinin (PPCPs) Triticum aestivum L. Üzerinde Antioksidan Enzim Aktivitelerine Etkileri
Osma, Etem; Çığır, Yavuz; Yavuzer, Hasan; Türkoğlu, Eda; Elveren, Müjgan
Bu çalışma tıbbi ilaç ve kişisel bakım ürünlerinin ekmeklik buğday (Triticum aestivum L. cv. Bezostaja) bitkisi üzerindeki antioksidan enzim aktiviteleri hakkındadır. Araştırmada günlük hayatta sıklıkla tüketilen Acetaminophen, Caffein, Gemfibrozil ve β-estradiol olmak üzere dört farklı tıbbi ilaç etken maddesi kullanılmıştır. Ekim yapılacak toprağa 15 mg, 50 mg, 200 mg Acetaminophen, Gemfibrozil ve β-estradiol ile bunun yanı sıra 50 mg, 100 mg, 300 mg şeklinde farklı konsantrasyonlarda Caffein karıştırılmıştır. Daha sonra, hazırlanan 650 g toprağın üzerine 7 g buğday tohumu ekilmiş, bunun üzeri ise 100 g toprak ile kaplanmıştır. Çimlenen buğdaylar, 15 gün sonra hasat edilmiştir. Hasat edilen örneklere ekstraksiyon işlemi uygulandıktan sonra, örneklerde katalaz (CAT), peroksidaz (POD), süperoksit dismutaz (SOD) gibi antioksidan enzim aktiviteleri belirlenmiştir. Elde edilen sonuçlar incelendiğinde buğdayda; CAT değerlerinin 1.525-2.350 EU g¯¹ FW, POD değerlerinin 37.200-59.600EU g¯¹ FW, SOD değerlerinin de 38-52,8 EU g¯¹ FW arasında olduğu tespit edilmiştir. Kontrol örnekleri ile farklı konsantrasyonlarda yetiştirilen örnekler arasındaki ilişki %95 güven aralığında istatistiksel olarak değerlendirilmiş, anlamlı farklılıklar belirlenmiştir. Çalışmada, Acetaminophen, Caffein, Gemfibrozil ve β-estradiol uygulanan örneklerde konsantrasyon artışına bağlı olarak kontrol grubuna kıyasla antioksidan enzim aktivitelerinde artış olduğu sonucuna ulaşılmıştır.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2017Heavy metal accumulation affects growth of Scots pine by causing oxidative damage
Osma, Etem; Elveren, Müjgen; Karakoyun, Güven
In this study, some physiological and biochemical parameters related to oxidative stress and the concentration of heavy metals were analyzed in leaves of pine trees (Pinus sylvestris L.) collected from regions suspected of air pollution. Leaves were collected from plants at five different locations near Erzincan, Turkey including the city center and a control area. All leaves were divided into two main parts after a washing procedure. After all pre-procedures in the laboratory, heavy metal analysis was conducted using inductively coupled plasma-optical emission spectrometer (ICP-OES). Data were analyzed statistically, and significant differences were found for plants collected among the different locations. Additionally, electrolyte leakage and physiological parameters such as lipid peroxidation, H2O2 content, chlorophyll content, and activity of the antioxidant enzyme superoxide dismutase were determined as indicators of plant cell stress. Results indicated significant differences between plants at experimental locations vs. the control area in terms of stress parameters; these differences were associated with heavy metal concentrations in plants.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2016Effect of Irrigation Water on Accumulation of Heavy Metal and Mineral Element in Some Vegetables
Mutlu, Salih; Osma, Etem; İlhan, Veli; Aksoy, Ahmet
In this study, the effects of irrigation water on vegetables were analysed. Samples that we analysed were pepper (Capsicum annuum L.), tomatoes (Solanum lycopersicum L.), and eggplant (Solanum melongena L.) were raised using running water and river water and collected from both normal land and riverside soils. After pretreating the collected samples in the laboratory, ICP-MS elemental analysis was conducted. Results are evaluated using SPSS 19 Statistical Package Software and expressed as mean we found that there is significant differences in the content metals of the samples (soil, roots and fruits) collected from three different area. We also evaluated the correlation between the soils and the roots vegetable in terms of heavy metals (or mineral). It was clear that there is a significant effect of irrigation water on the vegetables.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2016ANALYSING THE EFFECT OF ELEMENTS UPON SOME ENDEMIC PLANTS SPREADING OVER DIFFERENT HABITATS
Osma, Etem; Kandemir, Ali
Herein this study, the endemic plants showing different distribution, found in small populations in different habitats (such as serpentine, gypsum bearing, calcareous etc.) and the concentration of the elements in the soil they grow were determined. It was investigated whether the soil content of elements of some endemic plant species unique to Erzincan have effects upon the spreading in limited habitats. Root and leaves of 7 endemic plants, Psephellus aucherianus, Ferulago glareosa, Silene dumanii, Silene nerimaniae, Tanacetum alyssifolium, Verbascum alyssifolium, Psephellus erzincani and soil samples from the area they grow up were collected. Elemental analysis in plants and soils were conducted in the laboratory with ICP-OES device after the preliminary treatment. Elements of the habitats and features of collected soil samples were revealed. In the study, the correlation between element concentration in the roots of collected plants and element concentration in the soil they grew was determined.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2016Mistletoe (Viscum album) reduces the growth of the Scots pine by accumulating essential nutrient elements in its structure as a trap
Mutlu, Salih; Osma, Etem; Ilhan, Veli; Turkoglu, Halil Ibrahim; Atici, Okkes
Key message: We found mistletoe accumulates nutrient elements in its structure as a trap and causes a severe drought stress in the Scots pine in dry summer seasons. Abstract: The mistletoe [Viscum album ssp. austriacum (Wiesbaur) Vollm.] is a hemiparasitic plant, and its infestation is known to play an important role on the mortality of Scots pines (Pinus sylvestris L.), but there is little knowledge about its action mechanism. This study, therefore, tried to gain a better understanding of the destructive effect of the mistletoe on the growth and water uptake mechanism of the Scots pine. Identical needles from neighboring plants (healthy and infested) were harvested in the middle of each month (from April to October 2013) and used as research material. Infestation success of the mistletoe was investigated by evaluating the contents of the endogenous nutrient elements such as potassium, phosphorus, calcium, sulfur, magnesium, iron, copper, zinc, manganese, boron, nickel, and sodium in both mistletoe leaves and the needles of healthy and infested Scots pine. Its effects were also evaluated by determining the content of water, chlorophyll, and dry matter, and the length of the newly formed needles of the healthy and infested trees. Mistletoe infestation led to a decrease in the availability of water and mineral nutrients, and caused a powerful inhibition on the growth parameters such as chlorophyll, dry matter, and the length of needles by accumulating the essential nutrient minerals in its structure. The findings of this study indicate that the mistletoe accumulates the nutrient elements in its structure as a trap and causes a severe drought stress in the Scots pine in dry summer seasons, thereby playing a potent role in the increasing mortality rate in the Scots pine.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2015Accumulation of Mineral Elements in The Component of The Scots Pine (Pinus sylvestris L. var. hamata Steven) Trees and Grown in The Soil in Different Area of Erzincan
Osma, Etem; Karakoyun, Güven; Elveren, Müjgan
The aim of this research is to investigate mineral element concentration, shell, branch, leaf and soil samples of the scots pine plant (Pinus sylvestris L. var. hamata Steven) in five different localities one of which is upper centrum of Erzincan. Collected plant and soil samples were exposed to a pretreatment in laboratory, and then their mineral element concentrations were analysed through ICPOES device. The plant and soil datas obtained were statistically evaluated and the differences between localities were detected. Besides, the results obtained were also compared with limited values of plants and soils. Consequently, it was observed in the statistical evaluation that there were significant differences between the mineral element content of the soils and plants collected from the city center and control region
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2015Erzincan'da Hava Kirliliğine Bağlı Olarak Sarı Çamlarda (Pinus sylvestris L. var. hamata Steven.) Ağır Metal Birikimi
Osma, Etem; Karakoyun, Güven
Bu çalışma ile Erzincan İli Şehir merkezinde 5 farklı bölge (İstasyon, Aşağı Çarşı, Buğday Meydanı, Şehir Merkezi, Park) ve kontrol bölgesi (Mecidiye Köyü Mesire Alanı) olmak üzere altı farklı bölgeden sarıçam (Pinus sylvestris L. var. hamata Steven) bitkisinden kabuk, dal ve aynı bölgelerden toprak örnekleri toplanarak (Ni, Fe, Cu, Zn, Pb, Co, Cr) ağır metallerin birikimi araştırılmıştır. Toplanan bitki ve toprak örnekleri laboratuvarda ön işlemlerden geçirildikten sonra ağır metal konsantrasyonları analiz edilmiştir. Şehir merkezi ve kontrol bölgelerinden elde edilen veriler istatistiksel olarak karşılaştırılarak bölgeler arasındaki farklılıklar belirlenmiştir. Bölgeler arasında genel bir değerlendirme yaptığımızda ise istasyon ve aşağı çarşı bölgelerinden toplanan örneklerdeki ağır metal konsantrasyonunun diğer bölgelere göre daha yüksek düzeyde olduğu belirlenmiştir.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2014Assesment of some heavy metals in wild type and cultivated purslane (portulaca oleracea L.) and soils in Istanbul, Turkey
Osma, Etem; Ozyigit, Ibrahim Ilker; Demir, Goksel; Yasar, Ulkuhan
Purslane (Portulaca oleracea L.) is an ornamental plant listed by the World Health Organization as one of the most used medicinal plants and a culinary herb for many countries. The present investigation was therefore conducted to evaluate heavy metal (cadmium, copper, lead and zinc) values in wild type and cultivated purslane, and soil samples collected in urban areas. Plant and soil samples were taken from two types of stations (brook coast and urban roadside) in two different districts (Bakirkoy and Zeytin- burnu) of Istanbul. Standard procedures were used and the determinations of the elements in all samples were done using an Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). It was observed that washing procedure reduced concentrations of all heavy metals. As a result of the measurements, the heavy metal values of washed and unwashed plant samples varied as; Cd (0.27- 0.36 μg/g dw), Cu (9.64-17.63 μg/g dw), Pb (4.51-9.62 μg/g dw) and Zn (32.69-59.49 μg/g dw) for wild type and cul-tivated purslane samples. Heavy metal accumulations in plants reflected soil values in a proportional way especially for Cd, Cu and Zn. According to the results of this study, it can be said that both types of purslane reflect heavy metal amounts well in different areas with their washed and unwashed samples.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2014Assessment of genetic diversity and phylogenetic relationships of endangered endemic plant Barbarea integrifolia DC. (Brassicaceae) in Turkey
Filiz, Ertuğrul; Osma, Etem; Kandemir, Ali; Tombuloğlu, Hüseyin; Tombuloğlu, Güzin; Birbilener, Seda; Aydin, Mehtap
Barbarea integrifolia DC. (Brassicaceae) is an endangered and endemic species located in Erzincan and Gümüşhane provinces of Turkey. In total, 27 individuals from 2 natural populations were assessed using the random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) method coupled with sequence analysis of the internal transcribed spacer (ITS1) rDNA region. Genetic accuracy of RAPD-PCR was tested with 25 RAPD primers, and it resulted in 115 clear and reproducible DNA fragments from 13 RAPD primers. Among these, 76 (66.1%) fragments were found to be polymorphic. According to the ITS1 analysis of B. integrifolia populations, the plants exhibited a relatively poor genetic diversity. In total, 60 ITS1 nucleotide sequences from the GenBank database with 2 newly identified ITS1 sequences from the Turkish populations were used to construct a maximum-likelihood tree. The lengths of ITS1 sequences of B. integrifolia were found to be 268 bp for population I and 271 bp for population II. ITS1 sequences of B. integrifolia species showed 97% sequence identity. Phylogenetic analysis revealed that Barbarea species were monophyletic and showed high bootstrap values. B. integrifolia had closer relationships with Cardamineae taxa, including Cardamine, Rorippa, and Armoracia. On the contrary, allied genus Nasturtium species were separated from Cardamineae taxa. The genetic information obtained from this study could be used for the development of conservation strategies not only for B. integrifolia but also for rare and endangered plant species.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2014Jurinea kemahensis (Asteraceae), a new species from east Anatolia, Turkey
Dogan, Bekir; Kandemir, Ali; Osma, Etem; Duran, Ahmet
A new species Jurinea kemahensis B. Dogan, Kandemir and A. Duran (Asteraceae) is described from East Anatolia, Turkey. It grows in calcareous crevices in the Kemah district (Erzincan province) in the East Anatolia. It is morphologically fairly similar to J. tortumensis, and its diagnostic morphological characters are discussed the ecology and distribution of J. kemahensis are also presented the pollen characteristics and achene surface of J. kemahensis and J. tortumensis were examined by SEM.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2014Heavy metals accumulation causes toxicological effects in aquatic Typha domingensis Pers
Osma, Etem; İlhan, Veli; Yalçın, İbrahim Ertuğrul
Typha domingesis is a herbaceous plant growing around the swaps, lakes, and riverbeds. In this study, concentrations of heavy metals and mineral elements in root, stem, leaf, and sediment samples of T. domingensis were analyzed. Samples were collected from four different locations around Karasu River (Uluköy, Beşsaray, Saztepe, Kilimli) as one of the most important tributaries of the River Euphrates. Additionally, chlorophyll and carotenoid levels and lipid peroxidation features of the plant samples were investigated. Variations between the sampling locations and the correlation between the parts of plants were statistically evaluated. As revealed by the data, there were no significant differences between chlorophyll and carotenoid levels or lipid peroxidation in samples collected from different locations. Al showed the highest concentration in sediments, and K was the highest in samples obtained from different parts of the plants that were studied. It was observed that T. domingesis was acceptable as a good biomonitor plant for different metals.
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