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Seasonal Variation of Hypericin and Pseudohypericin Contents in Hypericum scabrum L Growing Wild in Turkey     
Yazarlar
Ali Kemal Ayan
Ondokuz Mayıs Üniversitesi, Türkiye
Cüneyt Çırak
Ondokuz Mayıs Üniversitesi, Türkiye
Dr. Öğr. Üyesi Kerim GÜNEY Dr. Öğr. Üyesi Kerim GÜNEY
Kastamonu Üniversitesi, Türkiye
Özet
The present study was conducted to determine ontogenetic and morphogenetic variations of hypericin and pseudohypericin contents in Hypericum scabrum growing in Turkey. Plants were harvested at vegetative, floral budding, full flowering, fresh fruiting and mature fruiting stages and observed for the presence of dark glands. Subsequently, they were dissected into stem, leaf and reproductive tissues, which were dried separately, and subsequently assayed for hypericin and pseudohypericin contents by HPLC. No hypericins were detected in stem tissues, while leaves and reproductive parts accumulated both compounds at different levels depending on growth stages. In general, higher levels of hypericin and pseudohypericin accumulation were observed in reproductive parts. Content of both hypericin forms decreased with advancing of plant development and reached their highest levels at floral budding stage.
Anahtar Kelimeler
Hypericin | Hypericum scabrum | Infrageneric classification | Ontogenetic variation | Pseudohypericin
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Natural Product Communications
Dergi ISSN 1934-578X
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2008
Cilt No 3
Sayı 2
Sayfalar 241 / 244
Doi Numarası 10.1177/1934578x0800300228