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    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, Ahmet
    Medicinal 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.
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    Genetic Diversity and Phylogenetic Analyses of Turkish Cotton (Gossypium HirsutumL.) Lines Using ISSR Markers and ChloroplasttrnL-FRegions
    (Taylor & Francis Inc, 2022) Hocaoglu-Ozyigit, Asli; Ucar, Bihter; Altay, Volkan; Ozyigit, Ibrahim Ilker
    In this study, genetic diversity and phylogenetic relationships of 22 cotton (Gossypium hirsutumL.) lines widely cultivated in Turkey were investigated. For this purpose, 20 ISSR primers were used, and five of which generated amplification products. The polymorphic locus ratio was calculated as 87.21% and a moderate level of genetic diversity was found between the genotypes. Percentage of the highest polymorphic locus was calculated as 12.79% for the Beren line, whereas ADN 98, ADN 710, and ozbek 105 lines showed the lowest value with 0.00%.trnL-Fintergenic spacer sequences were used in order to determine phylogenetic relationships, and a comparison was carried out between both sequences of our lines and the sequences obtained from NCBI-GenBank database. The sequences ofG. hirsutum, G. hirsutumsubsp.latifolium, andG. hirsutumcv. Hainansijimian were described as the most similar sequences according to specifications of coverage, similarity, and maximum score ranges. Then, a phylogenetic tree was established by using the sample sequences from the prominent families cultivated, especially from Malvaceae. While the members of Malvaceae family were clustered as one group, the other families were comprised of different groups located in different positions according to their genetic similarities.
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    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, Ahmet
    Medicinal 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.