Quinolizidine alkaloids (QAs) are nitrogen-containing compounds produced naturally as
specialized metabolites distributed in plants and animals (eg, frogs, sponges). The present …

Covering: July 2001 to December 2012 This review covers pyrrolizidine alkaloids isolated
from natural sources. Topics include: aspects of structure, isolation, and biological …

Naturally occurring pyrrolizidine alkaloids (PAs) are isolated from plants and other sources.
The interest of the scientific community in these compounds owes itself to their high toxicity …

Polyamines are important metabolites in plant development and abiotic and biotic stress
responses. Copper-containing amine oxidases (CuAOs) are involved in the regulation of …

Plants are autotrophic organisms and serve as both a major and the ultimate source of food
for animals and microorganisms. Plants cannot run away or fight back when attacked by a …

Background Continuous emergence of multi-drug-resistant malaria parasites and their rapid
spread across the globe warrant urgent search for new anti-malarial chemotherapeutics …

Plants growing in natural environments experience myriad interactions with a diverse
assemblage of pathogens, parasites and mutualists. Many of these interactions involve …

The genus Osyris belongs to the family Santalaceae, and consists of six or seven species
(Mabberley, 1997). Of their species, O. alba L. is a widespread dioecious hemiparasitic …

Osyris is the evergreen shrubs or trees belonging to the sandal wood family, Santalaceae
and is distributed in the tropical and temperate zone. The majority of plants are partially …

Phytochemical investigation of Osyris alba L.(Santalaceae) of Jordanian origin resulted in
the isolation and identification of one new pyrrolizidine alkaloid, osyrisine (1), together with …