Kurum Yazarı "Seyis, Fatih" Tarla Bitkileri Bölümü Koleksiyonu İçin Listeleme
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Altitudinal changes in secondary metabolite contents of Hypericum androsaemum and Hypericum polyphyllum
Çırak, Cüneyt; Radusiene, Jolita; Jakstas, Valdas; Ivanauskas, Liudas; Seyis, Fatih; Yayla, Fatih (Pergamon-Elsevier Science Ltd, 2017)The genus Hypericum (Hypericaceae) has attracted scientific interest as its members have yielded many bioactive compounds. in the present study we investigated the content of hypericin, pseudohypericin, hyperforin, ... -
Chemical and morphological diversity among wild populations of Hypericum aviculariifolium Jaub. et Spach subsp. depilatum ( Freyn et Bornm.) N. Robson var. depilatum
Çırak, Cüneyt; Özcan, Aysel; Yurteri, Emine; Kurt, Dursun; Seyis, Fatih (Univ Zagreb, Fac Science, Div Biology, 2020)In this study, the chemical and morphological diversity among eleven wild populations of Hypericum avicularlifolium Jaub. et Spach subsp. depilatum (Freyn et Bornm.) N. Robson var. depilatum, an endemic Turkish species was ... -
Chemical composition and antimicrobial activity of the essential oil of endemic heracleum platytaenium boiss. from Turkey
Akcin, Adnan; Seyis, Fatih; Akcin, Tülay Aytaş; Çaycı, Yeliz Tanrıverdi; Çoban, Ahmet Yılmaz (Taylor & Francis Ltd, 2013)The compositions of the essential oil of Heracleum platytaenium Boiss. aerial parts, grown in Turkey were determined by GC-MS. Twenty-two compounds (95.24 %) were determined. the major compounds in the oil were found to ... -
Determination of the chemical composition in different plant parts of S. Mollis taxa
Yurteri, Emine; Makbul, Serdar; Gültepe, Mutlu; Seyis, Fatih (Babes-Bolyai University, 2023)The volatile oil composition and secondary metabolite content in different parts of S. mollis ssp. mollis and S. mollis ssp. szowitzii were investigated in this study. Based on their chemical composition, the components ... -
Distribution of phenolic compounds and antioxidant activity in plant parts and populations of seven underutilized wild achillea species
Raudone, Lina; Radusiene, Jolita; Seyis, Fatih; Yayla, Fatih; Vilkickyte, Gabriele; Marksa, Mindaugas; Ivanauskas, Liudas; Çırak, Cüneyt (MDPI, 2022)Evaluation of phytochemical composition of underutilized Achillea species provides the primary selection of germplasms with the desired quality of raw material for their further applications. The aim of the study was to ... -
Effects of stratification and moisturizing treatments on breaking seed dormancy in two echinacea species
Yurteri, Emine; Aykutlu, Aysel Özcan; Küplemez, Haydar; Seyis, Fatih (Parlar Scientific Publications, 2021)Echinacea (Echinacea ssp.) has been widely used in folk medicine for centuries and has a high market share and medicinal value, because more than 280 different products are sold economically in Europe. Generally, germination ... -
Effects of Thidiazuran and Zeatin on plant regeneration in Helichrysum Pallasii
Yurteri, Emine; Aksu, Merve; Küplemez, Haydar; Özcan, Aysel; Seyis, Fatih (Bolu Abant Izzet Baysal University, 2021)The genus of Helichrysum comprises many species which have therapeutical effects and used in folk medicine. H. pallasii is one of these species, used in the region for traditional medicine and ornamental purposes. ... -
Hypericum spp. volatile profiling and the potential significance in the quality control of new valuable raw material
Bertoli, Alessandra; Çırak, Cüneyt; Seyis, Fatih (Elsevier, 2018)The genus Hypericum (Guttiferae) is one of the most representative species in temperate zones and Turkey is one of the most important Mediterranean sites. Due to the increasing commercial value of Hyperici herba (Hypericum ... -
Phenolic compounds and antioxidant activity of Achillea arabica populations
Çırak, Cüneyt; Radusiene, Jolita; Raudone, Lina; Vilkickyte, Gabriele; (Seyis, Fatih; Marksa, Mindaugas; Ivanauskas, Liudas; Yayla, Fatih (Elsevier, 2022)In this study, we aimed to present the screening of the contents of phenolics including caffeoylquinic acid derivatives, quercetin, luteolin, apigenin and some their derivatives as well as santin and total antioxidant ... -
Phenolic constituents of six Hypericum species from Türkiye and their chemotaxonomic relevance
Çırak, Cüneyt; Seyis, Fatih (Elsevier, 2023)Hypericum species have been of great interest to mankind for centuries and Türkiye is a global intersection for these species. In the present study, 20 wild populations of six under-exploited species of Turkish Hypericum ... -
Trends in phenolic profiles of achillea millefolium from different geographical gradients
Radusiene, Jolita; Karpaviciene, Birute; Raudone, Lina; Vilkickyte, Gabriele; Çırak, Cüneyt; Seyis, Fatih; Yayla, Fatih; Marksa, Mindaugas; Rimkiene, Laura; Ivanauskas, Liudas (MDPI, 2023)The traditional widely used raw material of Achillea millefolium is currently mainly derived from wild populations, leading to diversification and uncertainty in its quality. The aim of the study was to determine the ... -
Volatile secondary metabolites of Hypericum tetrapterum and Hypericum bithynicum
Seyis, Fatih; Yurteri, Emine; Özcan, Aysel; Çırak, Cüneyt; Yayla, Fatih (Elsevier, 2022)The phytochemical analyses on the flowering aerial parts resulted in identification of 32 and 30 compounds which represent 100% of total volatile components in Hypericum tetrapterum and Hypericum bithynicum (Hypericaceae), ... -
Volatile secondary metabolites of six Turkish Hypericum species: chemical composition and chemotaxonomic significance
Çırak, Cüneyt; Seyis, Fatih (Taylor & Francis Ltd., 2023)Volatile secondary metabolite profiles of 20 wild populations of six taxa from four sections of Turkish Hypericum (Hypericaceae; H. orientale, H. bupleuroides, H. venustum, H. hirsutum, H. linarioides and H. androsaemum) ...