Six dimeric bromopyrrole alkaloids (1-6) were isolated from a Florida Keys specimen of Agelas conifera. One of the constituents was identified as a new bromopyrrole metabolite, bromosceptrin (1). The structure of 1 was established from MS spectrometry and 1D and 2D NMR spectrocopy.

Interactions between intraguild species that act as both competitors and predator-prey can be especially complex. We studied patterns of space use by the black-footed ferret (Mustela nigripes), a prairie dog (Cynomys spp.) specialist, and the American badger (Taxidea taxus), a larger generalist carnivore that competes for prairie dogs and is known to kill ferrets. We expected that ferrets would...

Kuntal Das, Raman Dang, Nagesh Ghanshala* and P.E. Rajasekharan** Krupanidhi College of Pharmacy, Chikka Bellandur, Carmelaram Post, Varthur Hobli, Bangalore-560035, Karnataka, India *Al-Ameen College of Pharmacy, Hosur Main Road, Bangalore-560027, Karnataka, India **Principal Scientist, Division of Plant Genetic Resources, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Ba...

BACKGROUND AND AIMS The evolution of seeds together with the mechanisms related to their dispersal into the environment represented a turning point in the evolution of plants. Seeds are produced by gymnosperms and angiosperms but only the latter have an ovary to be transformed into a fruit. Yet some gymnosperms produce fleshy structures attractive to animals, thus behaving like fruits from a fu...

taxus    is an endangered plant which is the only commercial source of paclitaxel, which is used for treatment of ovary and breast cancer. as production of this valuable drug is a destructive process, other alternatives should be considered for its sustainable production. plant tissue and cell culture is a promising method for production of secondary metabolites. in order to optimize yew callus...