Phenotypic resistance to chloramphenicol and ampicillin was induced in sensitive Escherichia coli K-12 strains during incubation with the following substances: acetate, acetylsalicylate (aspirin), benzoate, dimethyl sulfoxide, 1-methyl-2-pyrrolidinone, and salicylate. In addition, acetyl-salicylate and salicylate induced resistance to nalidixic acid and tetracycline. The induction of resistance...

Since antibiotic resistance usually affords a gain of function, there is an associated biological cost resulting in a loss of fitness of the bacterial host. Considering that antibiotic resistance is most often only transiently advantageous to bacteria, an efficient and elegant way for them to escape the lethal action of drugs is the alteration of resistance gene expression. It appears that expr...

Cutaneous leishmaniasis is the most common form of lesihmaniasis, caused by Leishmania major and is spread by the bite of a sandfly .This species infects the macrophages and dendritic cells Due to multi-drug resistance, there is a need for a new therapeutic technique. Recently, a novel molecular motor of Leishmania, Myosin XXI, was classified and characterized. In addition, the drug resistance ...

Cutaneous leishmaniasis is the most common form of lesihmaniasis, caused by and is spread by the bite of a sandfly This species infects the Leishmania major . macrophages and dendritic cells Due to multi-drug resistance, there is a need for a new therapeutic technique. Recently, a novel molecular motor of , Myosin XXI, was classified and characterized. In addition, the drug Leishmania resistanc...

Strains were constructed that contain mutational alterations affecting two distinct functional domains within the araC gene protein. The araCi (catabolite repression insensitivity) and araCh (catabolite repression hypersensitivity) mutations were used to alter the catabolite repression sensitivity domain, and mutation to D-fucose resistance was used to alter the inducer binding domain. araCh, D...

The impact of low temperature on the Korolkov Aronnik plant triggers expression CBF family transcription factors, which, in turn, activate many downstream genes that confer resistance to cold and frost. article will consider identification ICE1 gene (inducer 1 expression) by Korolkov, an upstream factor regulates during cold. A mutation wild blocks CBF3 reduces located CBFs, which leads a signi...

Some synthetic fungicides have been currently prohibited due to their adverse effects; thus, searching for alternatives decrease application is a priority worldwide. An alternative the of chitosan -a natural biopolymer- because its biocompatibility, biodegradability, and bioactivity. Chitosan has used in different industries, such as cosmetology, pharmaceutics, food, among others. In agricultur...