The history of infectious diseases raised the plague as one of the most devastating for human beings. Far too often considered an ancient disease, the frequent resurgence of the plague has led to consider it as a reemerging disease in Madagascar, Algeria, Libya, and Congo. The genetic factors associated with the pathogenicity of Yersinia pestis, the causative agent of the plague, involve the ac...

Isofemale lines (IFL) from single egg masses were studied for genetic variation in Meloidogyne incognita isolates avirulent and virulent to the resistance gene Rk in cowpea (Vigna unguiculata). In parental isolates cultured on susceptible and resistant cowpea, the virulent isolate contained 100% and the avirulent isolate 7% virulent lineages. Virulence was selected from the avirulent isolate wi...

UNLABELLED Strains of Rickettsia rickettsii, the causative agent of Rocky Mountain spotted fever (RMSF), differ dramatically in virulence despite >99% genetic homology. Spotted fever group (SFG) rickettsiae produce two immunodominant outer membrane proteins, rickettsial OmpA (rOmpA) and rOmpB, which are conserved throughout the SFG and thought to be fundamental to pathogenesis. rOmpA is present...

conclusions this study provides initial data on the prevalence and distribution of the flaa, cadf, ciab, cdtb, cgtb, docc and wlan genes in c. jejuni. background campylobacter jejuni (c. jejuni) is a major cause of human diarrheal disease. objectives this study was conducted to determine the prevalence of different pathogenic genes in isolates recovered from human stool samples in rosario, arge...

ABSTRACT Canadian wheat cvs. Pasqua and AC Taber were examined genetically to determine the number and identity of stem rust resistance genes in both. The two cultivars were crossed with stem rust susceptible line RL6071, and sets of random F(6) lines were developed from each cross. The F(6) lines, parents, and tester lines with single stem rust resistance genes were grown in a field rust nurse...

Sixty-five random amplified polymorphic DNA (RAPD) primers were used for the detection of polymorphism among recipient and donor parents and their isogenic lines linked to leaf rust resistance genes, Lr9 and the resistant gene in kharchia local mutant KLM4-3B. Three primers showed polymorphism among recurrent parent, donor parent and isogenic lines.

Poly (methyl methacrylate) (PMMA) bone cement is widely used in vertebral body augmentation procedures such as vertebroplasty and balloon kyphoplasty. Filling high modulus PMMA increases the modulus of filled verterbra, increasing the risk of fracture in the adjacent vertebra. On the other hand, in porous PMMA bone cements, wear particle generation and deterioration of mechanical performance ar...

Escherichia coli clinical isolate BD07372 of sequence type ST131 recovered from a bed sore specimen exhibited high-level resistance to ceftazidime and cefotaxime but exhibited susceptibility to imipenem and meropenem. The isolate harbored two β-lactamase genes, the bla(CTX-M-15) gene carried by an ∼250-kbp plasmid carrying the FIA and FIC replicons and the bla(GES-5) gene carried by a class 1 i...