Genotypic Variation in Geographical Isolates of Oryctes Baculovirus

Genotypic variation in Pneumocystis jirovecii isolates in Britain.

BACKGROUND Pneumocystis jirovecii is the cause of Pneumocystis pneumonia (PCP) in immunosuppressed humans. Asymptomatic colonisation with P jirovecii may occur in patients with minor immunosuppression or chronic lung disease. The aim of this study was to describe the molecular epidemiology of P jirovecii in Britain over a period of 12.5 years. METHODS Between January 1989 and July 2001 161 sa...

Multilocus genotypic analysis of Cryptosporidium parvum isolates from different hosts and geographical origins.

The genetic analysis of oocysts recovered from the stools of humans and animals infected with Cryptosporidium parvum has consistently shown the existence of two distinct genotypes. One of the genotypes is found exclusively in some human infections, whereas the other genotype is found in human as well as in animal infections. On the basis of these observations and the results of published epidem...

Genotypic variation in P efficiency of selected Iranian cereals in greenhouse experiment

A factorial completely randomized block design experiment with three replications was carried out in greenhouse to evaluate cereal genotypic variation in phosphorus (P) acquisition and utilization efficiency in a calcareous soil with low available P (4.6 mg P kg-1 soil) and high total P (1260 mg P kg-1 soil). Treatments consisted of eight bread wheat (Triticum aestivum L.), three durum wheat (T...

Phenotypic and genotypic variation in Giardia lamblia isolates during chronic infection.

Two Giardia isolates were axenised in vitro after recovery by duodenal aspiration from a man with hypo-gamma globulinaemia and chronic giardiasis, before and after three unsuccessful courses of metronidazole. In vitro drug sensitivity assays showed that the pretreatment isolate was sensitive to metronidazole with minimum inhibitory concentration (MIC) and dose that inhibited growth by 50% (ED50...

Redescription and geographical variation of Monopeltis guentheri Boulenger (Amphisbaenia, Reptilia)