Ömer Çeçen

Karamanoglu Mehmetbey Üniversitesi

Medicinal plants comprise a spectrum of constituents, encompassing both organic and inorganic elements. Elemental composition of 27 species of medicinal plants of Lamiaceae (including 17 endemic) family grown in Turkey was carried out by ICP-MS. The following elements were determined in analysed samples: Na, Mg, Al, K, Ca, Sc, Cr, Mn, Fe, Co, Zn, A...

Salvia × karamanensis is endemic to Türkiye and is a hybrid of Salvia aucheri subsp. canescens and Salvia heldreichiana. In this study, the essential oil content and composition of S. × karamanensis hybrid species and its parents S. aucheri subsp. canescens, S. heldreichiana were determined. Essential oils of the plants were obtained by hydro disti...

Comparative karyotype analysis of four out of the six species of yellow-flowered Eranthis sect. Eranthis, i.e., E. bulgarica, E. cilicica, E. hyemalis, and E. longistipitata from different areas, has been carried out for the first time. All the studied specimens had somatic chromosome number 2n = 16 with basic chromosome number x = 8. Karyotypes of...

The in vitro antioxidant activity and phenol, phenolic acid, flavonoid, and proanthocyanidin content of Lotus sanguineus (Vural) D.D.Sokolof extracts were investigated. The aerial parts of Lotus sanguineus have high antioxidant activity. While the ethyl acetate extract has the highest antioxidant activity, in contrast the hexane extract shows lowes...

The chromosome numbers (CNs, 2n) and ploidy level (nx) according to the inferred basic chromosome number (x) are presented for 27 vascular plant species from 16 genera and 11 families: Amaryllidaceae: Allium; Asteraceae: Galinsoga; Caryophyllaceae: Dianthus; Geraniaceae: Erodium; Iridaceae: Crocus; Liliaceae: Fritillaria, Lilium, and Tulipa; Malvac...

Polygala fadimeana Dönmez and Çeçen is here described as a new species from the inner part of the Taurus mountain range in Turkey based on morphological data and its phylogenetic position is discussed based on molecular data. This new species is confined to limestone rock walls and is morphologically distinguished from P. kurdica and P. peshmenii b...

The research area consists of Davda Mountain and its surroundings located between Karaman and the volcanic Karadağ. Throughout the visits made during the vegetation periods between 2013 and 2019, 332 taxa classified in 44 families and 202 genera were identified. Fifty (15.1%) taxa are endemic among the spreading plants. The phytogeographic region e...

TÜRKİYE'DE DOĞAL OLARAK YETİŞEN TEUCRİUM CHAMAEDRYS L. SUBSP. CHAMAEDRYS VE TEUCRİUM DİVARİCATUM SUBSP. DİVARİCATUM'UN UÇUCU YAĞ BİLEŞENLERİ ESSENTIAL OIL COMPONENTS OF TEUCRIUM CHAMAEDRYS L. SUBSP. ÖZET Lamiaceae familyasının bir üyesi olan Teucrium L. cinsi, tüm dünyada bulunur, ancak esas olarak Doğu Yarımküre'nin kuzey ılıman ve subtropikal böl...

Nepeta species are widely used in folk medicine as a diaphoretic, diuretic, antiseptic, astringent, anti-asthmatic, cough suppressant, antispasmodic, antipyretic, sedative and stomachic. This study was designed to examine the chemical composition of the essential oil of Nepeta isaurica and Nepeta sulfuriflora. It was determined that the aerial part...

The genus Sideritis includes approximately 150 species distributed mainly in the Mediterranean region and represented in the Flora of Turkey by 46 species and altogether 55 taxa, 42 of them being endemic. The plants of Sideritis genus contain various types of plant secondary metabolites including predominantly terpenes, flavonoids, iridoids, coumar...

The Lamiaceae family includes numerous essential oil plants commonly found in the mountains of Europe, Asia, North Africa, and tropical Africa. Nepeta is one of the most important genera of the Lamiaceae family in terms of the number of species. Nepeta cilicia is a perennial plant with stem size of 22-100 cm. N. cilicica is used in folk medicine du...

The chemical compositions of the essential oils (EOs) obtained by hydrodistillation from different parts of Cnidium silaifolium ssp. orientale (Boiss.) Tutin were analyzed both by GC-FID and GC/MS, simultaneously. One hundred nine compounds representing 90.1% of the total volatiles in the EOs were identified with the main characteristic compounds α...

According to the original publication, Delphinium kitianum (Ranunculaceae) is a narrow endemic species whose type specimens were collected from Cevizli village (Kazancı, Ermenek, Karaman) and published in 1990. However, neither village nor settlement named “Cevizli” has been found during floristic studies in the region so far. Moreover, as a result...

The fruits, aerial parts and roots of Neomuretia pisidica (Kit Tan) Kljuykov, Degtjareva & Zakharova were extracted with n-hexane. Total of 18 compounds were characterised by GC analyses of the n-hexane extracts. Main volatile components of the n-hexane extract of aerial parts were characterized as 1,8-cineole (23.4%), camphor (21.4%), 2-ethyl hexa...

Astragalus sertavulensis is described as a new species from Karaman in south Anatolia, Turkey. The new species is closely related to A. mesogitanus Boiss. & Balansa and A. lycaonicus Hub.‐Mor. & Reese and is one of only three species in the section that have a hairy corolla. However, while only the standard is hairy in A. mesogitanus, and all the c...

Hungarian viticulture expert and botanist József Andrasovszky came to Turkey for collecting plants specimens from 37°-40° to 32°-34° latitude and longitude in 1911. After departing on the 7th of March from Budapest, Andrasovszky started collecting plants on the 13th of March in Ankara and ended his trip on the 7th September in Konya and returned to...

Chemical composition of volatile oils obtained from the roots, fruits and aerial parts of Glaucosciadium cordifolium (Boiss.) B.L. Burtt&P.H. Davis (Apiaceae) were analyzed using gas chromatography-flame ionization detector/mass spectrometry, simultaneously. Furthermore, antimicrobial and antioxidant activities of G. cordifolium volatile oils were...

Centaurea uysalii Şirin & Çeçen, a new Asteraceae species from the province of Karaman, in Turkey, is described and illustrated herein. It is morphologically similar to C. bourgaei Boiss. (Subgen. Cyanus), but it mainly differs from its relative in terms of the involucre and achene lengths. The achene micromorphological features and karyomorphology...

Andrasovszky 1911 yılında Ankara, Konya ve Karaman illeri arasındaki alanlardan topladığı bitkiler ile ilgili Additamenta ad Foram Galaticam et Lycaonicam tezini hazırlamıştır. Fazlaca tanınmayan bu çalışmasından Astragalus L. cinsine ait 19 taksonun kayıtları ve şu anda bulunduğu herbaryumlar hakkında bilgiler verilmektedir. Bu çalışma ile Andraso...

This research was carried out between 2009 and 2013 in order to determine the flora of Çakırdağı Mountain. Research area is situated in province of Karaman and within in the C4 square according to Davis's Grid system.531 taxa belonging to 64 families and 275 genera were determined in the research area. Of all the collected specimens, 88 (%16.6) tax...

Valerianella turcica, a new species from central Anatolia, Turkey, is described and illustrated. Morphologically, this new species is characterized by the combination of an inflated and regularly 6-lobed fruiting calyx with erect, triangular, aristate, and hooked lobes. Additional details on its geographical distribution, conservation status, and c...

Astragalus unalii Cecen, Aytac and Misirdali, sp. nov. (Fabaceae, sect. Malacothrix Bunge) is described as a new species from Karadag (Karaman Province) in southern Anatolia and compared with its relatives growing in steppe vegetation. The new species is close to A. tauricola Boiss. and A. adiyamanensis Podlech & M.Ekici, endemic and growing in cen...

Verbascum misirdalianum (Scrophulariaceae) is described and illustrated as a new species endemic to central Anatolia, Turkey. In this study, diagnostic morphological characters of this new species and closely related species (V. tossiense) are discussed. Furthermore, comments on habitat, morphology and conservation status are provided and distribut...