Browsing by Author "Akcay, Mustafa Emre"

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Additions To the Turkish Discomycetes
(Tubitak Scientific & Technological Research Council Turkey, 2014) Uzun, Yusuf; Acar, Ismail; Akcay, Mustafa Emre; Akata, Ilgaz
In this study, Mollisia ventosa P.Karst., Hymenoscyphus herbarum (Pers.) Dennis, H. immutabilis (Fuckel) Dennis, H. robustior (P.Karst.) Dennis, Ciboria amentacea (Balb.) Fuckel, and Peziza fimeti (Fuckel) E. C. Hansen have been recorded in Turkey for the first time. Comments on their morphological and anatomical features, geographical position, locality, collection date, and distribution and short descriptions and photographs related to macro-and micromorphologies of the taxa are provided.
Comparison of Xanthine Oxidase Inhibitory Activities and Phenolic, Fatty Acid, Element, and Vitamin Levels of Four Mushroom Species
(Wiley, 2025) Ekin, Suat; Akkoyun, Mahire Bayramoglu; Bakir, Ahmet; Akcay, Mustafa Emre; Ekin, Emre Can
The purpose of this study was to determine the antioxidant properties and the composition of phenolic compounds, trace elements, vitamins, and fatty acids in the edible mushrooms Helvella leucopus, Tricholoma terreum, Lepista nuda, and Marasmius oreades, as well as their inhibitory effect on xanthine oxidase. Elemental analyses were conducted using ICP-OES. Phenolic compounds and vitamins were performed by HPLC, while identification of fatty acids was performed by GC-MS. HPLC analysis revealed the phenolic compounds in H. leucopus, T. terreum, L. nuda, and M. oreades, with gallic acid being the main compound identified, with levels of 133.04, 246.49, 408.64, and 129.302 mu g/g dry weight, respectively. For vitamins, alpha-tocopherol is the most primary vitamin found with values of 0.6009, 0.79, and 0.3581 mu mol/kg dw. GC-MS analysis determined that the fatty acids with linoleic acid are the major fatty acids identified, with percentages of 30.82%, 19.92%, 30.38%, and 20.86%. ICP-OES measurement indicated that trace elements with iron as the dominant trace element were observed, with concentrations of 0.248, 0.237, 0.449, and 0.1998 mmol/kg dw. The XO inhibitory activities of four mushrooms were assayed, with the IC50 values of 39.97, 20.71, 11.71, and 23.85 mu g/mL, respectively. L. nuda and T. terreum may be effective for hyperuricemia and gout, which is associated with the results of phenolic compounds, some vitamins, trace elements, and linoleic acid contents on the inhibitory activities against xanthine oxidase. The results of medicinal mushrooms have shown that they could potentially be useful as inhibitors for the prevention of XO-related diseases induced by ROS.
Contributions To the Macrofungi of Bingol, Turkey
(Tubitak Scientific & Technological Research Council Turkey, 2017) Uzun, Yusuf; Acar, Ismail; Akcay, Mustafa Emre; Kaya, Abdullah
The present study was carried out on macrofungi samples collected from Bingol Province between 2006 and 2010. As a result of field and laboratory investigations 112 species belonging to Ascomycota and Basidiomycota were determined. Ten of them are new records for the Turkish mycobiota: Orbilia auricolor (A. Bloxam) Sacc.; Orbilia luteorubella (Nyl.) P. Karst.; Mollisia lividofusca (Fr.) Gillet; Calycina languida (P. Karst.) Baral, R. Galan & G. Platas; Vibrissea filisporia (Bonord.) Korf & A. Sanchez; Iodophanus carneus (Pers.) Korf; Amanita gilbertii Beauseign.; Conocybe brachypodii (Velen.) Hauskn. & Svrcek; Coprinopsis cordispora (T. Gibbs) Gminder; and Paxillus vernalis Watling.
The Mineral Contents of Some Wild Edible Mushrooms
(Foundation Environmental Protection & Research-fepr, 2011) Uzun, Yusuf; Genccelep, Huseyin; Kaya, Abdullah; Akcay, Mustafa Emre
The aim of this study was to determine and evaluate the amounts of major elements (Ca, Mg, K) and trace elements (Fe, Zn, Cu, Mn, Pb, Ni and Cd) found in forty five species of wild-grown common edible mushrooms growing in the Bingol and Selim (Kars) provinces of Turkey. The minimum and maximum values of the mineral elements concentrations varied for Ca (40-5700), Mg (180-1900), K (5900-29000), Fe (5-1930), Zn (15-450), Cu (5-83), Mn (0.20-80), Pb (<0.010-2.3), Ni (0.15-4.4), and Cd (<0.032-19.1) mg/kg dry weight. The potassium concentrations were found to be greater than those of the other mineral constituents in all the species. The K, Zn, Cu, and Ni concentrations were the greatest in Leucoagaricus leucothites.
Phylogenetic and Taxonomic Analyses Reveal Three New Records of Helvella in Türkiye
(Magnolia Press, 2025) Terman, Suheda Aldemir; Akcay, Mustafa Emre; Dizkirici, Ayten
In this study, morphological and molecular analyses of three newly collected saddle-like fungi confirm their classification within the genus Helvella L. from the eastern T & uuml;rkiye. A three-locus phylogeny was constructed using the internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (TEF1-alpha), and the large subunit (LSU) of the ribosomal RNA gene. Phylogenetic analyses were performed using Maximum Likelihood (ML) and Bayesian Inference (BI) approaches. The phylogeny inferred from the concatenated dataset revealed three distinct clades. The Turkish Helvella species were distributed across the Elastica, Lacunosa and Acetabulum clades, identified as H. rivularis, H. sublactea, H. arcto-alpina, respectively. Both single-locus and multi-locus data provided informative results. In addition to phylogenetic analysis, detailed macro-and micro-features, along with illustrations, were provided for each studied species.