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Öğe Cardamine Occulta: A New Weed and Alien Plant Species in Banana Production Greenhouses in Türkiye(Akademiai Kiado ZRt., 2023) Torun, H.; Özkil, M.; Aksoy, N.; Üremiş, I.; Uluda?, A.Banana is a cash crop in Mediterranean Region of Türkiye, which is grown mainly in greenhouses and open fields. In weed flora surveys carried out in 2021 and 2022, an Eastern Asian plant, Cardamine occulta Hornem. (Brassicaceae), was determined first time in 60% of banana greenhouses in Türkiye. The species had been recorded in Europe in the second half of the 20th century, and then spread especially in urban areas of many European countries and Mediterranean Basin, which implies many habitats in Türkiye under the threat of C. occulta. The main diagnostic morphological features and an identification key are presented in comparison with those for allied C. flexuosa With. and C. hirsuta L. An eradication program is suggested because it is not scattered but limited with banana greenhouses in Türkiye. © 2023 Akadémiai Kiadó, Budapest.Öğe Evaluation of Stories of the Prophets in the Holy Qur'an Based on Existential Therapy(Program Studi Ilmu Agama Islam Program Magister, Universitas Islam Indonesia, 2022) Torun, H.; Tekke, M.This study aimed to examine the stories of 25 prophets mentioned in the Qur'an within the framework of the existential theory. The research has been studied on associating the prophets and their stories in the Qur'an with the concepts of the existential theory. While the life of the prophets was encountered with the existentially positive concepts of the existential theory, no relationship could be established with the negative concepts. Knowing that the prophets mentioned in the holy book of Islam, the Qur'an, can be associated with the concepts of existential theory is important because it can be beneficial in existential therapy studies with Muslims. In addition, the study finding is significant in terms of establishing a bridge between the Qur'an, which is the main element of Islam, and the existence of western philosophers and mental health experts. © 2022, Program Studi Ilmu Agama Islam Program Magister, Universitas Islam Indonesia. All rights reserved.Öğe GAMMA-AMINO BUTYRIC ACID METABOLISM UNDER HIGH TEMPERATURE STRESS IN TWO LICHEN SPECIES(Corvinus Univ Budapest, 2018) Çekiç, F. Özlem; Sağlam, N. Gören; Torun, H.; Yiğit, E.; Ünal, D.High temperature stress is a major environmental stress factor for all photosynthetic organisms. Some lichen species could have the ability of tolerance against global warming. In the present study, we investigated the effects of high temperature on GABA metabolism in two different lichen species Evernia prunastri and Usnea sp.. Evernia and Usnea sp. were collected from unpolluted locations in Bilecik, TURKEY. Evernia and Usnea sp. were kept at 45 degrees C for 0, 24 and 48 h. We analyzed GABA content, glutamate dehydrogenase (GDH) and glutamate decarboxylase (GAD) activities and also chlorophyll and MDA contents in the thalli of the lichens. The chlorophyll degradation and lipid peroxidation data indicated that E. prunastri thalli showed tolerance to high temperature while Usnea sp. thalli were found to be sensitive under these conditions. GABA content was enhanced by high temperature stress in E. prutastri thalli, while GAD and GDH activities were decreased. According to our results, we can suggest that GABA accumulation in lichen thalli could occur via different metabolic pathways.Öğe The protective effect of exogenous salicylic and gallic acids ameliorates the adverse effects of ionizing radiation stress in wheat seedlings by modulating the antioxidant defence system(Elsevier Masson s.r.l., 2021) Colak, N.; Kurt-Celebi, A.; Fauzan, R.; Torun, H.; Ayaz, F. A.Plant growth regulatory substances play a significant role in maintaining developmental and physiological processes in plants under abiotic stress. Apart from traditional plant hormones, the phenolic acids, salicylic acid (SA) and gallic acid (GaA), are emerging players with pivotal roles in alleviating various environmental perturbations. The present study compared the stress alleviation effect of these two phenolic acids in wheat (Triticum aestivum L. ?Gönen-98?) seedling whose seeds were used in this study pre-treated with increasing doses of gamma irradiation (IR, 100 > 400 Gy). Leaves from seedlings hydroponically grown for 10 days in medium containing 100 ?mol/l SA and GaA were used in the measurements and determinations. Accordingly, exogenous treatment with SA and GaA significantly improved plant growth and photosynthetic activity and regulated stress-induced osmolyte accumulation against ?-irradiation. Treatments also led to significant reductions in TBARS and H2O2 contents. Antioxidant enzyme activities were further stimulated by SA and GaA treatment in comparison to IR alone. The phenolic pool including phenolic acids and GSH content in whole seedlings were promoted by IR and further SA and GaA applications. Contents in phenolic acids liberated from soluble free, soluble ester-conjugated and soluble glycoside-conjugated SA and GaA contents in roots and leaves increased following SA and GaA treatments alone in comparison to the control and IR groups. The present results indicate that SA and GaA can alleviate the ameliorative effects of IR, leading to further oxidative stress, and can improve the tolerance of stressed wheat seedlings by stimulating enzymatic and non-enzymatic antioxidant defence system components. © 2021 Elsevier Masson SAS
