Characterization and biological activity of a brazilian isolate of Bacillus sphaericus (Neide) highly toxic to mosquito larvae

Studies on the Bacillus sphaericus Larvicidal Activity against Malarial Vector Species in Amazonia

“…quadrimaculatus. Besides these, S 2 was biochemicaly characterized and differenciated from 2362 through lipid gaseous chromagraphy of the cell wall (Vilarinhos 1991).…”

Evaluation of the Larvicidal Activity and Effect on Protein Configuration of Two Bacillus Species and Six Plant Extracts Tested Against Culex Pipiens and Aedes Caspius Larvae

“…During the past five decades many industrial formulations of the famous bacteria Bacillus thuringiensis H-14 and Bacillus sphaericus, beside some plant extracts proved to have mosquitocidal activity. New strains of the environmentally safe bacteria; B.t.i and B. sphaericus are daily added to the known strains (Sun, et al, 1996;Vilarinhos, et al, 1996;Thiery & Hamon, 1998;Lecadet, et al, 1999 ;and Park, et al, 2007). The toxic effect varied according to mosquito species and bacterial crystal structure (Gupta, et al, 1991;Theiry, et al, 1992;Nicolas, et al , 1992;Krieger, et al,1999;Lecadet, et al, 1999 andOtieno-Ayayo, et al,2008 ).…”

Analysis of toxicity on Bacillus sphaericus from amazonian soils to Anopheles darlingi and Culex quinquefasciatus larvae

“…In Brazil, investigating activities carried out with Bacillus sphaericus in several regions of the country has made the discovery of high toxicity bearing strains possible (Schenkel et al, 1992;Vilarinhos et al, 1996;Rodrigues et al, 1999;Litaiff, 2002;Silva et al, 2002). Nevertheless, there is little information regarding the effects of Amazonian strains on vector-borne diseases, such as malaria which represents a severe problem in the region, with a yearly average of about 500,000 cases, accounting for 99.7% of those registered in Brazil (FUNASA/DIVEP/SISMAL).…”