Browsing by Author "Muradoglu, Ferhad"

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Cadmium Toxicity Affects Chlorophyll a and B Content, Antioxidant Enzyme Activities and Mineral Nutrient Accumulation in Strawberry
(Soc Biolgia Chile, 2015) Muradoglu, Ferhad; Gundogdu, Muttalip; Ercisli, Sezai; Encu, Tarik; Balta, Fikri; Jaafar, Hawa Z. E.; Zia-Ul-Haq, Muhammad
Background: Cadmium (Cd) is well known as one of the most toxic metals affecting the environment and can severely restrict plant growth and development. In this study, Cd toxicities were studied in strawberry cv. Camarosa using pot experiment. Chlorophyll and malondialdehyde (MDA) contents, catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX) activities and mineral nutrient concentrations were investigated in both roots and leaves of strawberry plant after exposure Cd. Results: Cd content in both roots and leaves was increased with the application of increasing concentrations of Cd. We found higher Cd concentration in roots rather than in leaves. Chlorophyll a and b was decreased in leaves but MDA significantly increased under increased Cd concentration treatments in both roots and leaves. SOD and CAT activities was also increased with the increase Cd concentrations. K, Mn and Mg concentrations were found higher in leaves than roots under Cd stress. In general, increased Cd treatments increased K, Mg, Fe, Ca, Cu and Zn concentration in both roots and leaves. Excessive Cd treatments reduced chlorophyll contents, increased antioxidant enzyme activities and changes in plant nutrition concentrations in both roots and leaves. Conclusion: The results presented in this work suggested that Cd treatments have negative effect on chlorophyll content and nearly decreased 30% of plant growth in strawberry. Strawberry roots accumulated higher Cd than leaves. We found that MDA and antioxidant enzyme (CAT, SOD and APX) contents may have considered a good indicator in determining Cd tolerance in strawberry plant.
A Comparative Study on Gc Analysis of Kernel Fatty Acids of Turkish Walnut (Juglans Regia L.) Genotypes
(Asian Journal of Chemistry, 2010) Muradoglu, Ferhad; Balta, Fikri
This work deals with determining kernel fatty acid composition (FAC) on the basis of kernel ground colour in walnut (Juglans regia L.) selections from eastern Turkey. Fruits of 50 promising walnut genotypes were analyzed with respect to their oil and fatty acid composition. Selections with light coloured kernels (LCK) and medium coloured kernels (MCK) were arranged in a row based on their kernel ground colours according to UPOV descriptors (1999). Light coloured kernels and medium coloured kernels selections had mean values of 58.97-58.04 % for kernel oil, 56.79-57.26 % for linoleic acid, 22.56-21.90 % for oleic acid, 12.28-12.46 % for linolenic acid, 4.35-4.34 % for palmitic acid and 2.03-2.05 % for stearic acid. With respect to unsaturated fatty acids and saturated fatty acids, significant differences were not found between light coloured kernels and medium coloured kernels selections.
Determination of Phenolic Compounds, Antioxidant Capacity and Organic Acids Contents of Prunus Domestica L., Prunus Cerasifera Ehrh. and Prunus Spinosa L. Fruits by Hplc
(Akademiai Kiado Rt, 2017) Celik, Ferit; Gundogdu, Muttalip; Alp, Sevket; Muradoglu, Ferhad; Ercisli, Sezai; Gecer, Mustafa Kenan; Canan, Ihsan
The important role of fruits in human health and nutrition has been better understood with the recent studies on biochemical contents of fruits having antioxidant properties. Being one of the similar studies, in this study, total antioxidant capacity (TAC), phenolic compound, organic acid, and vitamin C contents of three plum species (Prunus domestica L., Prunus cerasifera Ehrh., and Prunus spinosa L.) grown in Van locality (Turkey) were identified, and the correlation between the measured values was investigated. Phenolic compound, organic acid, and vitamin C contents were determined by high-performance liquid chromatography (HPLC) method. Analysis of phenolic compound indicated that chlorogenic acid was the predominant phenolic compound, and the highest value was measured in P. spinosa L. as 12.985 mg kg(-1). Malic acid was the predominant organic acids and the highest value was measured in P. spinosa L. as 1.245 g 100 g(-1). The highest TAC and vitamin C contents were also measured in P. spinosa L. as 1.021 mmol TE kg(-1) and 25.492 mg 100 g(-1), respectively. P. spinosa L. was found to be superior to the other two species with respect to antioxidant capacity and other biochemical contents. A significant (P <= 0.01) and positive correlation was reported between antioxidant capacity and vitamin C content.
Endogenous Hormone Levels in Bearing and Non-Bearing Shoots of Walnut (Juglans Regia L.) and Their Mutual Relationships
(Springer Heidelberg, 2010) Muradoglu, Ferhad; Balta, Fikri; Battal, Peyami
The levels of endogenous gibberellic acid equivalents, indole acetic acid, trans-zeatin and trans-zeatin riboside in bearing and non-bearing shoots of walnut (Juglans regia L.) were detected by high-performance liquid chromatography during vegetation period. The levels of endogenous hormones were analysed in four different shoot types of current season, bearing terminal shoot, non-bearing terminal shoot, bearing lateral shoot and non-bearing lateral shoot. Their average levels differed statistically at five sampling times from 25 May to 23 September. Relationships among changes in endogenous gibberellin, auxin and cytokinin contents were computed using correlation and regression analyses. Remarkable positive correlation coefficients were found among changes in gibberellin, auxin and cytokinin contents. Statistical findings indicated that changes in endogenous hormones exhibited a collective behaviour in walnut shoots during vegetation period.
Influence of Lead Stress on Growth, Antioxidative Enzyme Activities and Ion Change in Root and Leaf of Strawberry
(Parlar Scientific Publications (p S P), 2016) Muradoglu, Ferhad; Encu, Tarik; Gundogdu, Muttalip; Canal, Sibel Boysan
Heavy metals are of widespread occurrence as consequences of human, agricultural and industrial activities. Among heavy metals, lead is a potential pollutant that can accumulate in different tissues organs and thus restrict plant growth. In this study, mechanisms of plant tolerances to lead stress were studied on strawberry (Camarosa cv.) using pot experiment with different Lead Pb(NO3)2 applications ranging from 0 to 80 mg kg-1 using soil culture. The accumulation of Pb2+ and its influence on chlorophyll and malondialdehyde (MDA) contents, activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and ion concentrations were investigated in both root and leaves of strawberry plant. Despite severally decrease in the chlorophyll a and b contents, Pb2+ accumulation, MDA, SOD, and CAT activities were increased with the increase in the Pb2+concentrations both in roots and leaves. However APX activity was shown unsteady increase in roots and leaves. In the roots and leaves macro and micro ion concentrations were shown altered. While micro element concentrations decreased in contrary to macro element concentrations which were increased compare with control. These results indicate that lead stress cause reduction on growth and oxidative damage as shown by the decline in chlorophyll, increase in lipid peroxidase and antioxidant enzyme and alter levels of macro-micro ion concentrations.
Kadmiyum Stresi Altındaki Çilek (Fragaria X Ananassa “camarosa”) Bitkisinde Metil Jasmonat Uygulamalarının Bazı Büyüme Parametreleri Üzerine Etkileri
(2020) Muradoglu, Ferhad; Baytin, Rana; Akkus, Gokhan; Başak, İbrahim
Ağır metaller bitki için temel besin maddesi olmayan genellikle toksik etkiye sahip elementlerdirler. Kadmiyum bitki büyüme ve gelişmesini ciddi sınırlandırabilen ve çevreye olumsuz etkileri olduğu iyi bilinen en önemli toksik metallerden biridir. Bitkisel hormonlar, bitki bünyesindeki hormonların üretim, dağıtım veya sinyal çevrimini değiştirerek çevre koşullarına karşı değişen tepkiyi vermesi yanında bitki büyüme ve gelişmesini düzenleyen küçük moleküllerdirler. Jasmonatlar (JAs) birçok ileri bitki süreçlerini düzenlemekte ve olumsuz çevreresel stres faktörlerine karşı bitki savunma mekanizmasında aktif bir rol oynamaktadırlar. Bu çalışmada, ağır metal (kadmiyum) stresinde dışsal metil jasmonat (MeJa) uygulamalarının çilek (Camarosa ) bitkisinde bazı büyüme parametreleri üzerine etkilerinin belirlenmesi hedeflenmiştir. Çalışmada kadmiyum konsantrasyonun artışına paralel olarak çilek bitkisinde incelenen büyüme parametrelerinde düşüş belirlenmiştir. Bununla birlikte, metil jasmonat uygulamalarının kadmiyum toksitesini hafiflettiği ve uygulama dozuna bağlı olarak çilek bitkisinde kök sayısı, kök ağırlığı, gövde ağırlığı ve yaprak alanında artış sağladığı belirlenmiştir. Elde edilen sonuçlar kadmiyum uygulamalarının çilek bitkisinin büyümesi üzerine olumsuz etkilerinin olduğu ve metil jasmonat uygulamalarının ise kadmiyum stresinin azaltılmasında önemli bir rol oynadığı belirlenmiştir.
Morphometric Traits and Ipbs Based Molecular Characterizations of Walnut (Juglans Regia L.) Genotypes
(Springer, 2022) Basak, Ibrahim; Ozer, Goksel; Muradoglu, Ferhad
In this study, walnut genotypes that were selected during two growing seasons among thousands of seedlings were analyzed in terms of detailed morphometric, phenological, and chemical traits. A multivariate analysis was conducted with valuable traits for breeding and selection such as morphometric traits, chemical composition, and phenological characteristics. Also, genotypes were characterized by a retrotransposon-based iPBS marker system. The correlation analysis showed significant positive and negative correlations between agro-morphological characters. The principal component analysis explained 71.44% of the total variance into five main components. Principal component and hierarchical cluster analysis divided genotypes into three groups and identified subgroups based on both agro-morphological characters and iPBS marker systems. A high level of polymorphism ratio was observed for tested markers. Mantel's test demonstrated relatively low correlations between molecular and morphological treats (r = 0.04). The genetic similarities among all individuals ranged from 0.39 (between 018 and 015 or 045 genotypes) to 0.98 (between 090 and 094 genotypes) with a mean similarity of 0.67. Remarkable phenotypic and molecular variations were observed among the genotypes. The features of some investigated genotypes were above the acceptable thresholds for walnut selection in breeding programs, and our study indicated that iPBS markers can be beneficial in walnut breeding programs, allowing the evaluation of the genetic relationship between genotypes, helping to differentiate and select the best genotypes to improve agronomic properties.
Multivariate Analysis of Turkish and Foreign Apricot Cultivars Based on Biochemical Components
(Springer, 2022) Muradoglu, Ferhad; Kayakeser, Utku
In this study, six domestic ("Alyanak," "Hacihaliloglu," "Hasanbey," "Kabaasi," "Sakit," and "Soganci") and four foreign apricot cultivars ("Bebeco," "Paviot," "Colomer," and "Tyrinthe") were investigated. All cultivars were collected from the collection orchard of Yuzuncu Yil University in Van province, Turkey. Fruit biochemicals such as sugars, organic acids, and phenolic compounds were determined. The biochemical composition from ten samples obtained from domestic and foreign apricot cultivars was classified with multivariate analysis (principal component analysis [PCA] and hierarchical cluster analysis [HCA]) based on their sugar, organic acid, and phenolic compositions. Sucrose was the most abundant sugar in all cultivars, and "Hasanbey" had the highest sucrose. "Bebeco" comprised the group with the highest malic acid content. Chlorogenic acid, protocatechuic acid, caffeic acid, ferulic acid, and gallic acid were higher in the domestic cultivars and "Sakit" and "Soganci" were the richest in terms of these substances. On the other hand, p-coumaric acid, o-coumaric acid, catechin, syringic acid, vanillic acid, and phloridzin were higher in the foreign cultivars, where "Paviot," "Bebeco," and "Colomer" came to the fore. According to the PCA and HCA results, the domestic and foreign cultivars were clustered into two main groups, and the "Bebeco," "Colomer," and "Tyrinthe" from foreign cultivars were in the sub-group of the second main group. These results could help plan future breeding programs and determine the fruit quality and nutritional content of domestic and foreign apricot cultivars'.
Phenolic Compounds and Vitamins in Wild and Cultivated Apricot (Prunus Armeniaca L.) Fruits Grown in Irrigated and Dry Farming Conditions
(Soc Biolgia Chile, 2014) Kan, Tuncay; Gundogdu, Muttalip; Ercisli, Sezai; Muradoglu, Ferhad; Celik, Ferit; Gecer, Mustafa Kenan; Zia-Ul-Haq, Muhammad
Background: Turkey is the main apricot producer in the world and apricots have been produced under both dry and irrigated conditions in the country. In this study, phenolic compounds and vitamins in fruits of one wild (Zerdali) and three main apricot cultivars ('Cataloglu', 'Hacihaliloglu' and 'Kabaasi') grown in both dry and irrigated conditions in Malatya provinces in Turkey were investigated. Results: The findings indicated that higher content of phenolic compounds and vitamins was found in apricot fruits grown in irrigated conditions. Among the cultivars, 'Cataloglu' had the highest rutin contents both in irrigated and dry farming conditions as 2855 mu g in irrigated and 6952 mu g per 100 g dried weight base in dry conditions and the highest chlorogenic acid content in irrigated and dry farming conditions were measured in fruits of 'Hacihaliloglu' cultivar as 7542 mu g and 15251 mu g per 100 g dried weight base. Vitamin C contents in homogenates of fruit flesh and skin was found to be higher than beta-caroten, retinol, vitamin E and lycopen contents in apricot fruits both in irrigated and dry farming conditions. Conclusion: The results suggested that apricot fruits grown in both dry and irrigated conditions had high health benefits phytochemicals and phytochemical content varied among cultivars and irrigation conditions as well. However, more detailed biological and pharmacological studies are needed for the demonstration and clarification of health benefits of apricot fruits.
Some Chemical Composition of Walnut (Juglans Regia L.) Selections From Eastern Turkey
(Academic Journals, 2010) Muradoglu, Ferhad; Oguz, H. Ibrahim; Yildiz, Kenan; Yilmaz, Hudai
The aim of this study was to determine the chemical and mineral contents of eighteen walnut genotypes which were newly selected from Hizan (Bitlis) located in Eastern Anatolia. The protein, total fat, total oil (saturated and unsaturated oil) compositions and mineral contents were investigated. It was found that the average value for protein was 18.1% and for total fat was 58.2%. Saturated fatty acids composition values were less than the values of monounsaturated fatty acids composition and polyunsaturated fatty acids composition in all genotypes. Among the identified fatty acids, linoleic acid (50.58 - 66.60%) was the predominant fatty acid followed by oleic acid (14.88 - 28.71%) and linolenic acid (9.16 - 16.42%) in all genotypes. The other fatty acids were found in trace contents. The minimum and maximum macronutrient contents of walnut were determined as mg100 g(-1) for K (911.0 - 684.3), P (434.7 - 356.2), Ca (756.7 - 388.2), Mg (444.0 - 330.8) and Na (48.9 - 26.1) while minimum and maximum micronutrient contents of walnut were determined for Fe (6.6 - 4.3), Cu (2.8 - 1.8), Mn (5.7 - 2.7) and Zn (4.3 - 2.7). The potassium contents were found to be higher than those of the other minerals in all kernels of the walnuts.
Stomata Size and Frequency in Some Walnut (Juglans Regia) Cultivars
(Friends Science Publ, 2011) Muradoglu, Ferhad; Gundogdu, Muttalip
This study compared the stomata frequency, stomata size, chlorophyll content and leaf characteristics (leaf length, width & leaf area) of 11 cultivars of walnuts. The stomata frequency, stomata size (stomata length and width) of all 11 cultivars were in the range 183-335 stomata/mm(2), 17.21-30.10 and 10.65-20.06 mu m, respectively. The stomatal frequency of Chandler was the largest and the stomata length and width of Fernor were the largest among all the walnuts cultivars. Chlorophyll and leaf characteristic were measured in same leaf, which were used for measured stomata frequency and size previously. The total chlorophyll and leaf area in all cultivars were in the range 0.34-2.37 mg/g and 26.77-86.92 cm(2). The largest chlorophyll content was measured in Pedro, while the largest leaf area was measured in Howard. Remarkable positive correlation was found among leaf characteristics and stomata frequency in walnut cultivars. (C) 2011 Friends Science Publishers