Adil A. El Hussein

Prevalence, Detection and Antimicrobial Resistance Pattern of Salmonella in Sudan

Infectious microbial diseases constitute a major cause of death in many parts of the world, particularly in developing countries. Salmonella has been identified as an important food and water-borne pathogen that can infect human and animals resulting in significant morbidity and mortality (Akkina et al., 1999). Salmonella is a facultative anaerobe, Gram-negative rodshaped, 2 – 3 x 0.4 – 0.6 μm in size and motile by peritrichous flagella except for S. Gallinarum and S. Pullorum which are immotile. Members of the genus have a % G+C content of 50-53. They are urease and Voges-Proskauer negative and citrate utilizing (Montville and Matthews, 2008).

Complete genome sequence of datura leaf curl virus, a novel begomovirus infecting Datura innoxia in Sudan, related to begomoviruses causing tomato yellow leaf curl disease

Several species in the genus Datura (family Solanaceae) are hosts for begomoviruses (family Geminiviridae), both in the New World and the Old World. Here, we report the genome characterization of two isolates of a novel Old World monopartite begomovirus infecting Datura innoxia in Sudan, which we propose to be named “datura leaf curl virus” (DaLCV). Pairwise sequence comparisons and phylogenetic analysis showed that DaLCV isolates are related to begomoviruses causing tomato yellow leaf curl disease, a global menace for tomato crops. Thus, the novel begomovirus could pose an additional threat to tomato cultivation in Africa.