Tomato (Solanum lycopercicum L) is one of the most cultivated crops in Côte d'Ivoire. However, its production confronted with enormous constraints, especially damage caused by pathogens and vectors certain diseases. Faced this damage, growers resort to chemical products that are harmful environment, user consumers. Therefore, it becomes necessary use extract Artemisia annua as a biopesticide co...

Schistosomiasis, a neglected tropical disease, imposes substantial health and economic burdens on impoverished groups living in predominantly rural areas. Praziquantel (PZQ) is the only drug available for treatment, it not completely efficacious. Artemisia annua afra infusions were proposed to possess antischistosomal activities recently retracted publication of clinical trial, leading our inve...

Malaria, known as the "fevers," has been treated for over three thousand years in China with extracts of plants of the genus Artemisia (including Artemisia annua, A. opiacea, and A. lancea) from which the active compound is artemisin, a sesquiterpene that is highly effective in the treatment of the disease, especially against young forms of the parasite. South American Indians in the seventeent...

Seeds of two selected clones of Artemisia annua L., TC1 and TC2, were germinated in a greenhouse. Four-week-old seedlings from both clones were grown in the Thù Đúc province of Ho Chi Minh City on 2(nd) January 2009 and Đà Lat on 20(th) January 2009. During this study period in Thù Đúc province, which is situated 4-5 m above sea level, was experiencing a tropical, dry season with temperatures r...

1 Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States, 2 Department of Horticulture, University of Georgia, Athens, GA, United States, 3 U.S. Salinity Laboratory, United States Department of Agriculture, Agricultural Research Service, Riverside, CA, United States, 4 Department of Seed, Crop and Horticultural Sciences, University of Eldoret...

The activity of plant extracts on parasites may indicate groups of substances that are potentially useful for controlling Rhipicephalus (Boophilus) microplus. The aim of the present study was to investigate the in vitro action of Artemisia annua extracts on this tick. The concentrations of the sesquiterpene lactones artemisinin and deoxyartemisinin present in plant extracts were quantified via ...

The emergence of terpene cyclization was critical to the evolutionary expansion of chemical diversity yet remains unexplored. Here we report the first discovery of an epistatic network of residues that controls the onset of terpene cyclization in Artemisia annua. We begin with amorpha-4,11-diene synthase (ADS) and (E)-β-farnesene synthase (BFS), a pair of terpene synthases that produce cyclic o...