Browsing by Author "Acar, Ismail"

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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.
Amanita Vidua: a New Record for Turkish Amanita Section Phalloideae Based on Morphological and Molecular Data
(Trakya Univ Balkan Yerlesesi Enstituler Binasi, 2024) Akata, Ilgaz; Kumru, Eda; Sahin, Ergin; Acar, Ismail; Kaya, Ertugrul
In the present study, fungal specimens collected from Ye & scedil;ildere village in U & scedil;ak province, T & uuml;rkiye were evaluated. The specimens underwent detailed examination through both morphological and DNA (nrITS rDNA region and TEF1a gene) sequence -based phylogenetic analysis. Based on the evaluation of micro- and macromorphological characteristics, and phylogenetic analyses, the specimen was identified as A. vidua Gasch, G. Moreno & P. A. Moreau. This identification marks A. vidua as a new record for the Turkish Amanita section Phalloideae. The study described this newly recorded species, including specific details such as its location, habitat observations, geographical coordinates, collection date, and photographs showcasing its macro and micromorphological features. Additionally, it also includes illustrations of some microscopic structures of the species. The study is further enriched with SEM images, offering a detailed view of the species characteristics, and the findings are briefly discussed.
The Association of Obesity With Hearing Thresholds in Women Aged 18-40 Years
(Springer, 2016) Ucler, Rifki; Turan, Mahfuz; Garca, Fatih; Acar, Ismail; Atmaca, Murat; Cankaya, Hakan
An elevation in hearing thresholds and decrease in hearing sensitivity in adults, particularly due to aging, are quite common. Recent studies have shown that, apart from aging, various other factors also play a role in auditory changes. Studies on the association of hearing loss (HL) with obesity are limited in advanced age cases and present contradictions. In this study, the association between obesity and hearing thresholds in women aged 18-40 years has been assessed. Forty women diagnosed with obesity (mean age, 31.8 years) and 40 healthy non-obese female controls (mean age, 30.5 years) were included in this prospective study. Each subject was tested with low (250, 500, 1000 and 2000 Hz) and high (4000, 6000 and 8000 Hz) frequency audiometry. In the case and control groups, the average hearing thresholds at low frequencies were 16.03 +/- A 4.72 and 16.15 +/- A 2.72 (p = 0.885) for the right ear, respectively, and 16.15 +/- A 5.92 and 14.71 +/- A 3.18 (p = 0.180) for the left ear, respectively. The average hearing threshold levels at high frequencies were 20.70 +/- A 10.23 and 15.33 +/- A 3.87 (p = 0.003), respectively, for the right ear, and 22.91 +/- A 15.54 and 15.87 +/- A 4.35 (p = 0.007), respectively, for the left ear with statistical significance. This is the first report on the association of obesity with hearing threshold in women aged 18-40 years. We have demonstrated that obesity may affect hearing function, particularly that related to high frequencies. Hearing loss can be prevented by avoidance or control of obesity and its risk factors. Moreover, an auditory screening of obese cases at an early stage may provide early diagnosis of HL and may also contribute to their awareness in the fight against obesity.
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.
Development of Chitosan Nanoparticle Loaded With Tricholoma Fracticum Extract and Evaluation of in Vitro Antioxidant Activity
(Wiley, 2024) Canbolat, Fadime; Acar, Ismail; Tezel, Ruhiye Nilay
The objective of this study was to develop Tricholoma fracticum extract-loaded chitosan nanoparticles (TFNPs) by ionic gelation method and to evaluate their in vitro antioxidant activity. Phenolic and flavonoid contents in the T. fracticum extract were measured spectrophotometrically and chromatographically. Characterisation of NPs was evaluated by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), ZETA analysis, Fourier-transform infrared spectroscopy (FT-IR), UV-visible spectroscopy (UV-Vis) and thermogravimetric analysis (TGA). In vitro antioxidant capacity was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2 '-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays. The phenolic and flavonoid contents in the T. fracticum extract were measured as 7.1 +/- 0.3 mg Gallic Acid Equivalent/g extract and 5.5 +/- 0.6 mg Quercetin Equivalent/g extract, respectively. The particle size, polydispersity index (PDI) and zeta potential of Blank NP1 and TFNP were 265.5 +/- 15.8 nm, 0.4, 38.7 +/- 4.0 mV and 333.2 +/- 16.3 nm, 0.4, 37.0 +/- 4.1 mV, respectively. The highest antioxidant activity was observed in TFNP, followed by T. fracticum extract, chitosan and blank NP, respectively. The preserved or enhanced antioxidant activity observed in the encapsulated T. fracticum extract indicates the potential for loading similar mushroom extracts onto chitosan and thus preserving their bioactive properties.
Evaluation of Antioxidant Activity, Anti-Lipid Peroxidation Effect and Elemental Impurity Risk of Some Wild Agaricus Species Mushrooms
(BMC, 2025) Okumus, Emine; Canbolat, Fadime; Acar, Ismail
BackgroundMushrooms are natural antioxidant sources that have been consumed as food from past to present and have a nutraceutical effect thanks to the bioactive components they contain. The aim of this study is to comparatively evaluate the antioxidant activity, total phenolic content (TPC) and lipid peroxidation (LPO) inhibition effect of three mushroom species (A. bernardii, A. bresadolanus and A. cupreobrunneus) belonging to the Agaricus genus and to perform the carcinogenic and noncarcinogenic risk assessment of toxic elements such as cadmium (Cd), lead (Pb), arsenic (As) and mercury (Hg) in mushrooms.ResultsThe highest antioxidant activity (12.85 mg/mL), TPC (993.04 mg GAE/100 g), and LPO inhibition effect (2.50 mg/mL) were detected in A. bresadolanus mushroom. The lowest content of bioactive compounds was measured in A. cupreobrunneus mushroom. The range of Cd, Pb, As, and Hg levels detected in the three mushroom species were 1775.54-7521.61 mu g/kg, 1176.87-2377.37 mu g/kg, 15201.26-3092.53 mu g/kg and 147.86-576.53 mu g/kg, respectively. The THQ value of As in A. bresadolanus was found to be higher than 1. The HI values of A. bernardii, A. cupreobrunneus and A. bresadolanu were 1.29, 0.98 and 5.57, respectively. The CR values of Cd, As, and Hg were found to be around 10- 4 in A. bernardii, A. cupreobrunneus, and A. bresadolanus. Meanwhile, the CR levels of Pb were found to be around 10- 6 in the three mushrooms. The HI value for non-carcinogenic risk assessment was higher than 1, and the CR for carcinogenic effect was around 10- 4, indicating that consumption of these mushrooms poses a risk to human health.ConclusionsIt is thought that the elemental impurity levels in the analysed edible mushroom species were found to be at a risk potential level, and despite their antioxidant properties, uncontrolled consumption of wild edible mushrooms may cause serious risks. In order to minimize these risks, metal risk assessment studies should be continued in addition to the antioxidant effects and health-beneficial properties of mushrooms.
Fungal Systematics and Evolution: Fuse 10
(verlag Ferdinand Berger Sohne Gesellschaft Mbh, 2024) Lambert, Herman; Acar, Ismail; Tekpinar, Ayten Dizkirici; Fortin, Guy; Ivanushkina, Nataliya; Jacobs, Karin; Haelewaters, Danny
In this 10th contribution to the Fungal Systematics and Evolution series published by Sydowia, 14 species are formally described: Amanita cingulatoides from Canada, A. confundens, A. elongatior, A. fusca, A. fuscozonata, A. leptorhacopus, A. magna, A. olivaceodisca, A. piceina, A. pulla, and A. quercifulva from Canada and the USA, Hebeloma uzunii from T & uuml;rkiye, Pleurotus overstrandensis from South Africa, and Saksenaea ozerskayae from Russia. Pluteus keselakii is reported for the first time from Czechia and Slovenia. Three invalidly published names are validated with corrected typification: Cortinarius balteatoindicus, C. indopurpurascens, and C. ulkhagarhiensis. Finally, Thaxterogaster shoreae is combined into Cortinarius.
Fungal Systematics and Evolution: Fuse 6
(verlag Ferdinand Berger Sohne Gesellschaft Mbh, 2020) Haelewaters, Danny; Dima, Balint; Abdel-Hafiz, Abbas I. I.; Abdel-Wahab, Mohamed A.; Abul-Ezz, Samar R.; Acar, Ismail; Krisai-Greilhuber, Irmgard
Fungal Systematics and Evolution (FUSE) is one of the journal series to address the "fusion" between morphological data and molecular phylogenetic data and to describe new fungal taxa and interesting observations. This paper is the 6th contribution in the FUSE series-presenting one new genus, twelve new species, twelve new country records, and three new combinations. The new genus is: Pseudozeugandromyces (Laboulbeniomycetes, Laboulbeniales). The new species are: Albatrellopsis flettioides from Pakistan, Aureoboletus garciae from Mexico, Entoloma canadense from Canada, E. frigidum from Sweden, E. porphyroleucum from Vietnam, Erythrophylloporus flammans from Vietnam, Marasmiellus boreoorientalis from Kamchatka Peninsula in the Russian Far East, Marasmiellus longistipes from Pakistan, Pseudozeugandromyces tachypori on Tachyporus pusillus (Coleoptera, Staphylinidae) from Belgium, Robillarda sohagensis from Egypt, Trechispora hondurensis from Honduras, and Tricholoma kenanii from Turkey. The new records are: Arthrorhynchus eucampsipodae on Eucampsipoda africanum (Diptera, Nycteribiidae) from Rwanda and South Africa, and on Nycteribia vexata (Diptera, Nycteribiidae) from Bulgaria; A. nycteribiae on Eucampsipoda africanum from South Africa, on Penicillidia conspicua (Diptera, Nycteribiidae) from Bulgaria (the first undoubtful country record), and on Penicillidia pachymela from Tanzania; Calvatia lilacina from Pakistan; Entoloma shangdongense from Pakistan; Erysiphe quercicola on Ziziphus jujuba (Rosales, Rhamnaceae) and E. urticae on Urtica dioica (Rosales, Urticaceae) from Pakistan; Fanniomyces ceratophorus on Fannia canicularis (Diptera, Faniidae) from the Netherlands; Marasmiellus biformis and M. subnudus from Pakistan; Morchella anatolica from Turkey; Ophiocordyceps ditmarii on Vespula vulgaris (Hymenoptera, Vespidae) from Austria; and Parvacoccum pini on Pinus cembra (Pinales, Pinaceae) from Austria. The new combinations are: Appendiculina gregaria, A. scaptomyzae, and Marasmiellus rodhallii. Analysis of an LSU dataset of Arthrorhynchus including isolates of A. eucampsipodae from Eucampsipoda africanum and Nycteribia spp. hosts, revealed that this taxon is a complex of multiple species segregated by host genus. Analysis of an SSU-LSU dataset of Laboulbeniomycetes sequences revealed support for the recognition of four monophyletic genera within Stigmatomyces sensu lato: Appendiculina, Fanniomyces, Gloeandromyces, and Stigmatomyces sensu stricto. Finally, phylogenetic analyses of Rhytismataceae based on ITS-LSU ribosomal DNA resulted in a close relationship of Parvacoccum pini with Coccomyces strobi.
Hebeloma Bingolense, a New Species in Section Hebeloma (Basidiomycota) From Turkey
(Gebruder Borntraeger, 2022) Acar, Ismail; Dizkirici, Ayten; Kalmer, Aysenur; Uzun, Yusuf
In the current study, a new fungus species Hebeloma bingolense sp. nov. is described and illustrated based on materials collected in Bingol, Turkey. Drawings of microscopic characters, scanning microphotographs of the basidiospores, and color pictures of the basidiomes in their natural habitats are provided. Molecular analysis was also carried out to characterize the new species reliably by using DNA sequences of nuclear ribosomal internal transcribed spacers (nrITS) and nuclear large subunit of ribosomal RNA gene (nrLSU). The phylogenetic position and evolutionary relationships of H. bingolense with other species of Hebeloma are inferred by means of Maximum Likelihood (ML) and Bayesian Inferences (BI) of the concatenated dataset. The novel taxon is located within a well-supported clade formed by members of Hebeloma section Hebeloma and it is closely related to H. dunense and H. alpinicola.
Hymenoscyphus Conscriptus & H. Fucatus, Newly Recorded From Turkey
(Mycotaxon Ltd, 2022) Dizkirici, Ayten; Acar, Ismail
conscriptus and Hymenoscyphus fucatus are described as new records from Turkey based on morphological characters and DNA sequence data. Phylogenetic analyses of internal transcribed spacer nuclear ribosomal DNA sequences (nrITS) show that H. conscriptus and H. fucatus form well-supported clades. Hymenoscyphus conscriptus and H. fucatus cluster as a highly supported group, closely related to H. yui and H. serotinus, but represent independent species in the phylogenetic tree; the synonymy of H. conscriptus under H. calyculus is not supported phylogenetically. Detailed descriptions, illustrations, and discussions concerning morphologically similar and phylogenetically closely related species are provided for each species.
Initial Report of Inocybe Costinitii in Türkiye With Morphological and Molecular Data
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2024) Akata, Ilgaz; Edis, Gulce; Kumru, Eda; Acar, Ismail; Sahin, Ergin
Inocybe specimens were collected from Ankara University Be & scedil;evler 10. Y & imath;l Campus, (Ankara, T & uuml;rkiye) on October 19, 2022. As a result, the samples were identified as I. costinitii, a new record for Turkish Inocybe. This study presents a detailed description of this newly recorded species, covering aspects such as its location, observations of its habitat, geographical coordinates, the date of collection, and photographs that highlight its macroscopic and microscopic characteristics. Moreover, the study features the species' drawings and some of its microscopic traits. The study is enhanced by images obtained from a scanning electron microscope (SEM), briefly examining the spore features and discussed briefly.
Morphological and Molecular Characterization of Hebeloma Subtortum (Hymenogastraceae), a New Record Macrofungus From Bingol Province, Turkey
(Kastamonu Univ, 2019) Dizkirici, Ayten; Acar, Ismail; Kalmer, Aysenur; Uzun, Yusuf
Aim of Study: The specimen identified as Hebeloma subtortum based on both morphological and molecular characterizations. Area of Study: Samples were collected from Bingol province and the study was conducted at the Department of Molecular Biology and Genetics in Van Yuzuncu Yil University. Material and Methods: Characters of pileus, stipe, lamellae and basidia, cystidia, spores were used as macroscopic and microscopic features, respectively. DNA sequences of two loci including the internal transcribed spacer (ITS) region and the large subunit (LSU) of nuclear ribosomal RNA gene were used to show the evolutionary relationship and taxonomic position of the species within Hebeloma genus. The DNA sequences of the above-mentioned regions of H. subtortum were compared to those of the same and different species of the genus downloaded from NCBI. Main results: In phylogenetic analyses, H. subtortum distinctly clustered with its representatives retrieved from NCBI with high bootstrap value. The ITS tree was more informative compared to LSU. Hebeloma subtortum closely grouped with H. mesophaeum in the ITS tree. Research highlights: Hebeloma subtortum has been described and illustrated as a new record from Turkey.
Morphological and Molecular Characterization of Terfezia Claveryi and Its Distribution in Türkiye
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2025) Akata, Ilgaz; Kumru, Eda; Edis, Guelce; Ozbey, Beste Gizem; Acar, Ismail; Sahin, Ergin
The samples were collected from Ankara, Gaziantep, Konya, Ni & gbreve;de, and & Scedil;anl & imath;urfa (T & uuml;rkiye), between 2020 and 2023. Morphological analyses and nrITS rDNA sequence-based phylogenetic methods were used to examine the samples. Twenty-one specimens displayed morphological features consistent with Terfezia claveryi Chatin at both macro and micro levels. Genetic analysis revealed over 99% sequence similarity with this species. Detailed documentation included habitat descriptions, geographical coordinates, collection dates, and photographic records of macroscopic and microscopic structures. These findings contribute valuable insights into the distribution and taxonomy of T. claveryi in T & uuml;rkiye.
New Records From Turkey: Cortinarius Barbatus, C. Osmophorus, & C. Saturninus
(Mycotaxon Ltd, 2021) Acar, Ismail
Three Cortinarius species, C. barbatus, C. osmophorus, and C. Saturninus, have been identified as new records for the Turkish mycota based on macro- and micromorphological characters, and their identifications were supported by molecular (rDNA ITS) phylogenetic data. The Turkish specimens are illustrated, and their diagnostic characters are compared with published descriptions of the same species and related taxa.
New Turkish Records of Hebeloma Excedens and H. Geminatum, and Confirmation of H. Celatum
(Mycotaxon Ltd, 2022) Dizkirici, Ayten; Kalmer, Aysenur; Acar, Ismail
Hebeloma excedens and H. geminatum are reported as new records and H. celatum is confirmed for the Turkish mycota, on the basis of morphological and phylogenetic data. Morphological descriptions, illustrations, and comparisons with closely related taxa are provided.
The Phenolic Profile and Biological Activities of the Wild-Edible Mushrooms Helvella Leucopus and Morchella Pulchella
(Springer, 2021) Acar, Ismail; Blando, Federica; Gul, Bahar; Greco, Alessandra; Mukemre, Muzaffer; Uzun, Yusuf; Dalar, Abdullah
Morchella pulchellaClowez & Franc. Petit. andHelvella leucopusPers. are among the most utilized naturally grown wild-edible mushroom species in Eastern Anatolia, Turkey. This study focused on revealing their phenolic profiles using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), antioxidant (hydrogen atom and single electron-transfer mechanisms), and enzyme inhibition (acetylcholinesterase, amylase, glucosidase, and lipase) activities of lyophilized sequential (n-hexane, ethanol, methanol, and water, respectively) extracts and traditional preparations (infusion and decoction) obtained from the fruiting bodies of these mycomaterials. Our chromatographic studies revealed thatM. pulchellaextracts are dominated by caffeic acid, whileH. leucopusextracts contained significant levels of protocatechuic acid as a major biologically active compound (excluding n-hexane fractions). The most active antioxidant and enzyme inhibitory extracts were from ethanol (or methanol) inM. pulchellaand water (or infusion) inH. leucopus. Data obtained from our study showed that hydrophilic extracts ofM. pulchellaandH. leucopuswere significant sources of antioxidants and enzyme inhibition activities and that they might be used as raw materials in the food, nutraceutical, biotherapeutic and pharmaceutical industries. [GRAPHICS] .
Phylogeny of Some Melanoleuca Species ( Fungi: Basidiomycota) in Turkey and Identification of Melanoleuca Angelesiana A.h. Sm. as a First Record
(Kastamonu Univ, 2018) Kalmer, Aysenur; Acar, Ismail; Dizkirici Tekpinar, Ayten
Aim of Study: The purposes of the present study are to describe and identify all collected Melanoleuca samples using morphological characters, determine phylogenetic relationships among species using DNA sequences of ITS and LSU regions and check the number of subgenera of Melanoleuca genus. Area of Study: Samples were collected from different parts of Turkey and the study was conducted at the Department of Molecular Biology and Genetics in Van Yuzuncu Yil University. Material and Methods: Twenty-two samples, representatives of fourteen species, were used. Structures of pileus, stipe, lamellae and basidia, cystidia, spores were used as macroscopic and microscopic features, respectively. The nuclear ribosomal internal transcribed spacer region (nrITS) and largest subunit (LSU) were amplified for molecular analyses. Main results: Taxonomic positions of some Melanoleuca species from Turkey were evaluated based on both morphological characters and sequences of two different nuclear DNA regions. nrITS region was more informative (112 variable sites in ITS1, 1 in 5.8S and 95 in ITS2 subregions) compared to LSU (46 variable sites). Analyses of ITS region revealed that the genus Melanoleuca was monophyletic and divided into two subgenera as Melanoleuca and Urticocystis. Research highlights: Within studied species, Melanoleuca angelesiana was firstly reported for mycobiota of Turkey
Some Macrofungi Determined in Semdinli and Yuksekova Districts (hakkari-Turkey)
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2020) Acar, Ismail; Uzun, Yusuf; Akata, Ilgaz
The present study reports macrofungi specimens collected from Semdinli and Yuksekova districts (Hakkari) between 2014 and 2016. As a result of field and laboratory studies, 197 species were identified. Together with the previously reported six species, 203 species belonging to two division, 48 families and 97 genera were listed from the study area. Among them, 36 species belong to Ascomycota, and 167 to Basidiomycota.
Taxonomic Studies on Rhodocybe Asyae Specimens Discovered in a New Location
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2024) Akata, Ilgaz; Edis, Gulce; Kumru, Eda; Acar, Ismail; Sahin, Ergin
In 2023, fungal specimens were collected from the T & imath;naztepe Campus underwent a comprehensive and meticulous evaluation involving morphological examination and phylogenetic analysis based on nrITS rDNA sequencing. The DEU AKATA & SAHIN 148 samples exhibited microscopic and macroscopic characteristics that closely matched those of Rhodocybe asyae, initially described by Sesli & Vizzini. The genetic sequence analysis revealed over 99% similarity with R. asyae Sesli & Vizzini. This report represents the second recorded occurrence of R. asyae in T & uuml;rkiye and the third globally. The study documents the collection site, geographical coordinates, research provides macroscopic photographs, microscopic illustrations of the specimens, and detailed discussion, demonstrating the reliability of the present findings.
Two Newly Reported Agaricales Species From Türkiye With Morphological and Molecular Data
(Kastamonu Univ, 2024) Akata, Ilgaz; Kumru, Eda; Edis, Gulce; Acar, Ismail; Sahin, Ergin
Aim of study: The main aim of this study is to contribute to the fungal diversity of T & uuml;rkiye by presenting two newly documented species within the order of Agaricales. Area of study: The samples of the newly reported species were collected under pine trees in Ankara & Uuml;niversitesi Be & scedil;evler 10. Y & imath;l Campus, Ankara, and in fir forest at At Plateau, located 10 km from Bolu city center. Material and method: The samples underwent detailed analysis, including morphological evaluation and DNA sequencing of the nrITS rDNA region and the TEF1 alpha gene. This process involves examining both microscopic and macroscopic characteristics to perform phylogenetic analysis. Main results: Fieldwork and laboratory analysis have led to the first report of the species Agaricus nevoi Wasser and Hygrophorus abieticola Krieglst. ex Gr & ouml;ger & Bresinsky, both belonging to the order Agaricales, from T & uuml;rkiye. Research highlights: The current study introduces a newly recorded Agaricales species in T & uuml;rkiye, bringing the total number of known genera Agaricus and Hygrophorus species in T & uuml;rkiye to 37 and 31, respectively.