Four new nardosinane-type sesquiterpenoids, parathyrsoidins A-D (1-4) were isolated from the soft coral Paralemnalia thyrsoides. The structures of parathyrsoidins A-D (1-4) were determined by extensive spectral analysis and their cytotoxicity against selected cancer cell lines as well as antiviral activity against human cytomegalovirus (HCMV) were evaluated in vitro.

Türkiye, Campanula cinsi çeşitliliği bakımından Akdeniz Havzası’ndaki en zengin ülkelerinden biridir ve Türkiye türlerinin yarısından fazlası endemiktir. Bu yazıda C. cymbalaria var. papillosa (Campanulaceae) Türkiye’den yeni bir varyete olarak tanımlanmaktadır. Varyetenin ayırt edici karakterleri, tam betimi kapsamlı fotoğrafları verilmiştir. Morfolojik özelliklerine göre subgen. sect. Saxicol...

1 An experiment was carried out to test the hypotheses that in heterogeneous environments: (i) the size of species’ root systems will be negatively correlated with their ability to place roots precisely in nutrient-rich patches; (ii) precision of root placement will be less affected by distance to nutrient patches in species with large root systems; (iii) species with greater precision in root ...