The YvfTU Two-component System is involved in plcRexpression in Bacillus cereus (2008)
Brillard, Julien, Susanna, Kim, Michaud, Caroline, Dargaignaratz, Claire, Gohar, Michel, Nielsen-Leroux, Christina, ...
Abstract Background Most extracellular virulence factors produced by Bacillus cereus are regulated by the pleiotropic transcriptional activator PlcR. Among strains belonging to the B. cereus group,...
Christina Nielsen-Leroux, Guofeng Pei, Zhiming Yuan, Lêda Regis
Investigations on the inheritance and mechanism of resistance to Bacillus sphaericus Neide in Culex quinquefasciatus Say colonies, selected with strains C3-41 (RLCq1/C3-41) and 2362 (CqRL1/2362),...
Christina Nielsen-Leroux, Nicole Pasteur, Jérôme Prètre, Jean-françois Charles, Hassen Ben Sheikh, Christine Chevillon
This study was aimed at clarifying the nature of the resistance to Bacillus sphaericus Neide (Bs) that Culex pipiens L. has developed in west Mediterranean countries, France, and Tunisia. Two...
Mosquitocidal Bacterial Toxins: Diversity, Mode of Action and Resistance Phenomena (2000)
Jean-François Charles, Christina Nielsen-LeRoux
Bacteria active against dipteran larvae (mosquitoes and black flies) include a wide variety of Bacillus thuringiensis and B. sphaericus strains, as well as isolates of Brevibacillus laterosporus and...
Mosquitocidal bacterial toxins: diversity, mode of action and resistance phenomena (2000)
Charles,Jean-François, Nielsen-LeRoux,Christina
Bacteria active against dipteran larvae (mosquitoes and black flies) include a wide variety of Bacillus thuringiensis and B. sphaericus strains, as well as isolates of Brevibacillus laterosporus and...
Nielsen-LeRoux, Christina, Rao, D. Raghunatha, Murphy, Jittawadee Rodcharoen, Carron, Alexandre, Mani, T. R., Hamon, Sylviane, ...
We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens...
Loss of the membrane anchor of the target receptor is a mechanism of bioinsecticide resistance
Darboux, Isabelle, Pauchet, Yannick, Castella, Claude, Silva-Filha, Maria Helena, Nielsen-LeRoux, Christina, Charles, Jean-François, ...
The mosquitocidal activity of Bacillus sphaericus is because of a binary toxin (Bin), which binds to Culex pipiens maltase 1 (Cpm1), an α-glucosidase present in the midgut of Culex pipiens larvae....
A Strain of Bacillus sphaericus Causes Slower Development of Resistance in Culex quinquefasciatus
Pei, Guofeng, Oliveira, Cláudia M. F., Yuan, Zhiming, Nielsen-LeRoux, Christina, Silva-Filha, Maria Helena, Yan, Jianpin, ...
Two field-collected Culex quinquefasciatus colonies were subjected to selection pressure by three strains of Bacillus sphaericus, C3-41, 2362, and IAB59, under laboratory conditions. After 13 and 18...
Bouillaut, Laurent, Ramarao, Nalini, Buisson, Christophe, Gilois, Nathalie, Gohar, Michel, Lereclus, Didier, ...
Bacillus thuringiensis and Bacillus cereus are closely related. B. thuringiensis is well known for its entomopathogenic properties, principally due to the synthesis of plasmid-encoded crystal toxins....