Bayram Atasagun

Selcuk University

In this study, 'Ak Sakı' and 'Kara Sakı' apple cultivars were collected from different locations in Erzincan province, Türkiye, and genetic diversity was determined using the Start Codon Targeted (SCoT) marker technique. The SCoT marker technique was chosen because its gene targeting, long primer, and high annealing temperature make it more effecti...

Onobrychis argaea belonging to the Fabaceae family, is an endangered plant species endemic to Turkey, distributed only in Kayseri Erciyes Mountain. This study represents the first comprehensive investigation into the morphology, anatomy, pollen and seed micromorphology, and chromosome characteristics of O. argaea. The previous description of the sp...

"Her biri benzersiz ama işleyişi ve unsurları ile aynı olan ekosistemlerdeki karmaşık bağlantıları keşfetmek ve anlamak, günümüz bilim insanlarının ortak araştırma konusudur. Özellikle biyoçeşitliliğin gizemlerini çözmek ve karşılaşılan tüm zorluklara yenilikçi, bilim temelli teknoloji odaklı çözümler geliştirmek, bu sayede doğanın sürdürülebilirli...

Teucrium ekimii, T. pestalozzae and T. semrae are three endemic species of Turkey belonging to Teucrium sect. Teucrium. These species grow in the western Mediterranean region of the country and are morphologically similar to each other. In the present study, the three species underwent anatomical examination of the stems, leaves and palynological s...

In this research the metaphase chromosome number and karyotype of Astragalus stenosemioides species growing naturally in Turkey are studied. The study revealed that the chromosome number of A. stenosemioides is 2n = 16. The basic chromosome number of species is determined as x = 8. The karyotype formula of A. stenosemioides is 8m. The total length...

Centaurea amaena is an endemic and endangered species listed as CR (critically endangered) in Turkey. ISSR markers were used to detect the level of genetic diversity in two natural populations of C. amaena. A total of 50 ISSR primers were used and 13 primers producing polymorphic and reproducible products were selected. These primers yielded 102 am...

Cousinia (Asteraceae, Cardueae) cinsi çiçekli bitkiler içerisinde tür sayısı bakımından 50. büyük cins ve Asteraceae familyası içerisinde yaklaşık 700 türle temsil edilen en büyük cinslerden biridir. Bu çalışma, Cousinia seksiyonu içerisinde yer alan Cousinia decolorans türünün anatomik, palinolojik mikromorfolojik özelliklerinin belirlenerek cinsi...

Cousinia, Asteraceae’deki en büyük cinslerden biridir, Güneybatı ve Orta Asya’da 700 tür içermektedir. Cousinia seksiyonu Türkiye’de 23 tür ile temsil edilmektedir. Cousinia’nın taksonomisi tartışmalıdır. Anatomi ve polen morfolojisinin kullanılması, türlerin tanımlanması ve sınırlandırılması için faydalı bir araç olabilmektedir. Bu nedenle bu çalı...

Astragalus argaeus is an endemic plant species that is under critical risk of extinction. Here we investigated its population census, breeding system and reproductive success to determine the main factors affecting restricted distribution of this species. According to the results from pollination experiments, A. argaeus was autogamous but benefit f...

In Turkey, the genus Chrysophthalmum Sch.Bip. ex Walp. is represented by 3 taxa, namely Chrysophthalmum montanum (DC.) Boiss., C. dichotomum Boiss. & Heldr. and C. gueneri Aytaç & Anderb.. C. montanum is herbaceous plant that grows on rock cracks and limestone cliffs, in the eastern and southeastern regions of Turkey. In this study, pollen and cyps...

The genus Salvia and Thymus have gained much popularity as an alternative therapy in Turkish folk medicine for abdominal pain, cold, nausea, among others. Nonetheless, some species are yet to be further explored for their bioactivities. We investigated the biological activities of 3 extracts (dichloromethane, methanol, and water (decoction)) of Sal...

Astragalus argaeus is a critically endangered endemic species growing only on Erciyes Mountain in Kayseri, Turkey. In this study, morphology, anatomy, ecology, pollen and seed morphology and karyology of this species were investigated. The previous description of the species has been expanded and amended. Anatomically, cross-sections of root, stem...

Astragalus argaeus is critically endangered endemic species growing only on Erciyes Mountain in Kayseri. Inter simple sequence repeat (ISSR) markers were chosen to detect the genetic diversity in four populations of A. argaeus. Ten primers were used to assess the diversity among 96 genotypes collected from the four localities in Erciyes Mountain. A...

Centaurea amaena is an endemic plant species that is under critical risk of extinction and was known from only one population in Kayseri, Turkey. During our research another locality was found at about 15 km distance from the first known population. In this study, the population pattern of this species and its distribution, the reasons for its narr...

Objective: The present study aimed to compare the polyphenol content, total phenolic, total flavonoid, antioxidant and antimicrobial activity of the extracts obtained from Centaurea amaena Boiss. & Balansa and Centaurea aksoyi Hamzaoğlu & Budak. Methods: Both species were subjected to maceration, Soxhlet and ultrasonication extractions with meth...

Saponaria halophila Hedge & Hub.-Mor. is an endemic plant species rarely spread throughout Turkey. This study was conducted to find out an appropriate method for breaking dormancy of seeds. Following sulphuric acid treatments, the seeds were exposed to six different doses of five plant growth regulators (PGR) BA, IAA, Kn, GA3, NAA at various temper...

Anatomical, palynological, karyological and morphological seed characters of Silene brevicalyx and S. ozyurtii (Caryophyllaceae) were investigated for the first time. S. brevicalyx grows on serpentine rocky slopes and open forest in Muğla province (southwestern Turkey), while S. ozyurtii is an East Mediterranean element growing on serpentine stony...

C. aksoyi Türkiye florasında bulunan endemik bir bitki türüdür. Bu çalışmada C. aksoyi’nin metanollü ekstresinin antioksidan aktivitesi fosfomolibdenyum ve DPPH serbest radikal süpürücü aktivite olmak üzere iki farklı yöntemle araştırılmıştır. Fosfomolibdenyum yönteminde metanollü ekstrenin antioksidan aktivitesi 135.38 ± 0.1 mg askorbik asit g-1ek...

Giriş: Tohum çimlenmesi, bitkilerin yaşam döngülerindeki en önemli evrelerden bir tanesidir. Çimlenme sıcaklık, ışık, oksijen, su, doğal büyüme inhibitörleri vb. birçok faktör tarafından kontrol edilir. Sıcaklık, tohumların çimlenme davranışını etkileyen en önemli faktörlerden biridir. Her bir tohumun çimlenebildiği minimum, optimum ve maksimum sıc...

Some morphological, anatomical, palynological and karyological features of Lamium multifidum and L. orientale (Lamiaceae) naturally occurring in Turkey have been studied. Additional information was added to the previous description of these species. Anatomically, both L. multifidum and L. orientale had an annual taproot, stems quadrangular in cross...

Centaurea amaena Boiss. & Balansa included in the Phalolepis section of the Compositae (Asteraceae) family is an endemic species that is under critical risk of extinction. The morphological, anatomical, palynological, karyological and autecological features have been studied in this study. In accordance with the new observations, additional informa...