introduction: previously, we demonstrated that i.p. injection of aqueous extract prepared from aerial parts of drosera spatulata (droseraceae) can induced remarkable analgesia in both phases of formalin test in rats. because, analgesia induced in acute phase of formalin test mainly mediated by activation of central analgesic mechanisms and also paragigantocellularis (pgi) nucleus is part of bra...

establishment of plant organ cultures. Since then protocols have been developed for cultivating many genera of carnivorous plants in vitro, including: Aldrovanda, Byblis, Cephalotus, Darlingtonia, Dionaea, Drosera, Drosophyllum, Genlisea, Heliamphora, Nepenthes, Pinguicula, Sarracenia, and Utricularia. However, the purposes for growing carnivorous plants in vitro are quite diverse. It is useful...