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A protocol has been developed for achieving somatic embryogenesis from callus derived from nodal cuttings and production of synthetic seeds in Hemidesmus indicus L. R. Br. a highly traded ethnomedicinal plant. Proembryogenic, friable, light yellowish callus was induced from the basal cut end of the nodal cuttings on Murashige and Skoog (MS) medium(More)
An efficient plant regeneration protocol has been developed from embryogenic callus derived from cotyledonary explants of Clitoria ternatea Linn., an important medicinal climber species. Optimum embryogenic callus (75 %) was induced on Murashige and Skoog (MS) medium supplemented with 2 mg/l 2, 4-dichlorophenoxyacetic acid (2, 4-D). On subculturing the(More)
Curcuma caesia Roxb., commonly called “Black turmeric”, is an important medicinal plant. Normally this plant is micropropagated via rhizome or rhizome bud explant culture. However, the shoot induction from rhizome explants is low and thus, alternate methods could be adopted to induce maximum shoots. In this report, we subjected the rhizome segments to(More)
High frequency multiple shoots have been induced from nodal segments of Rhinacanthus nasutus (L.) Kurz., a potent anticancerous ethnomedicinal plant. For initiation of cultures, nodal segments were cultured on MS medium supplemented with various concentrations (1.0–5.0 μM) of 6-benzyladenine or thidiazuron (TDZ) alone or in combination with α-naphthalene(More)
Several biologically active secondary metabolites like anthraquinones, sterols, triterpenes, flavonoids and naphthoquinones are present in Rhinacanthus nasutus. Naphthoquinones are important group of compounds generally known as rhinacanthin (RC) consists of 15 derivatives named RC A–D and G–Q of which RC-C, RC-D and RC-N have various medicinal properties.(More)
Young healthy cotyledon and leaf explants of Rhinacanthus nasutus (L.) Kurz. were incubated on Murashige and Skoog (MS) medium supplemented with 1.0–5.0 mg/l 2, 4-dichlorophenoxyacetic acid (2,4-D) either alone or in combination with 0.3–1.5 mg/l indole-3-butyric acid (IBA). The optimum callus induction (100 %) was observed from cotyledon explants on MS(More)
This study demonstrates the morphogenic potential of pulvinus, an important organ situated at the base of the petiole or rachis of leguminous plants. Plant regeneration via pulvinus-derived calli of Caesalpinia bonduc has been achieved. Organogenic calli have been derived from the explant 45 days after culture on Murashige and Skoog (MS) medium supplemented(More)
An efficient in vitro propagation protocol has been standardized for Curcuma caesia Roxb., an important source of camphor, using bud- and leaf-derived callus. The optimum response of 84 and 71 % callus induction was obtained when bud and leaf segment explants were cultured on Murashige and Skoog (MS) medium supplemented with 6.7 µM 2,(More)
OBJECTIVE Identification of challenges associated with quitting and overcoming them may improve cessation outcomes. This study describes the development and initial validation of a scale for measuring challenges to stopping smoking. METHODS The item pool was generated from empirical and theoretical literature and existing scales, expert opinion and(More)