Hypericum perforatum L. (St. Johns’ wort) is the most commercially important species of the genus Hypericum and contains a wide range of components including naphthodianthrones, phloroglucinols, tannins, xanthones, phenolic acids and essential oil. In order to establish an efficient protocol for regeneration, the effects of explant type and plant growth regulators on direct and indirect shoot r...

Amaç: Bitkilerden elde edilen uçucu yağlar, geleneksel sentetik böcek öldürücülere çevre dostu alternatifler sağlayabilir. Bu çalışmada beş farklı esansiyel yağın (Thymus vulgaris, Piper nigrum, Syzygium aromaticum, Hypericum perforatum, Papaver somniferum) Musca domestica larvalarına karşı etkisinin değerlendirilmesi amaçlanmıştır. Yöntem: Her yağ çeşidinin üç dozu (% 1, % 3 ve 6) tekerrürlü o...

In Germany, hypericum extracts are among the most widely prescribed antidepressants. Additionally, many preparations of St. John's wort are sold on the free market and one extract is even the best selling antidepressant in the country. In contrast to synthetic antidepressants, the approval procedures are not so strict, which implies that the pharmaceutical industry is not forced to conduct clin...