Now showing items 1-10 of 344
Triple therapy with clarithromycin, omeprazole, and amoxicillin for eradication of Helicobacter pylori in duodenal ulcer patients in Asia and Africa
Background: Studies assessing the efficacy of triple therapy containing clarithromycin and amoxicillin for the eradication of Helicobacter pylori infection and healing of duodenal ulcers in Asian and African countries are ...
Systematics and evolution of the subfamily Gerbillinae (Mammalia, Rodentia, Muridae)
Although they represent a quarter of the mammalian species, the evolutionary relationships among as well as within, the main murid lineages are still controversial. The subfamily Gerbillinae is no exception as previous ...
A conservation assessment of the freshwater crabs of southern Africa (Brachyura: Potamonautidae)
Recent taxonomic revisions of the freshwater crabs of southern Africa (Angola, Botswana, Lesotho, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe) allow accurate depictions of their diversity, distribution ...
Seed set of the invasive tree Schinus molle (Anacardiaceae) in semi-arid savanna, South Africa: The role of pollinators and selfing
This study investigates the extent to which seed production in Schinus molle is dependent upon pollinators and outcrossing with the objective of understanding whether pollination and seed set could be a barrier to the ...
Characterization of Colletotrichum species associated with diseases of Proteaceae
Colletotrichum spp. are known to occur on and cause diseases of Proteaceae, but their identities are confused and poorly understood. The aim of the present study thus was to identify accurately the Colletotrichum spp. ...
DNA phylogeny, morphology and pathogenicity of Botryosphaeria species on grapevines
Several species of Botryosphaeria are known to occur on grapevines, causing a wide range of disorders including bud mortality, dieback, brown wood streaking and bunch rot. In this study the 11 Botryosphaeria spp. associated ...
An Agrobacterium-mediated system for gene transfer in Pinus patula
A pioneer study investigating the feasibility of using Agrobacterium-mediated gene transfer was undertaken in Pinus patula, the most important softwood species in South African forestry. This was achieved via the introduction ...
Disa linderiana (Orchidaceae), a new orchid from the Western Cape of South Africa
Disa linderiana, a new species belonging to Disa sect. Disella, is described from the high mountains of the western part of the Cape Floristic Region, South Africa. It is most closely related to Disa tenuicornis on account ...
HIV-1 and tuberculosis infection  (multiple letters)
[No abstract available]
Impact of grazing around a watering point on soil status of a semi-arid rangeland in Ethiopia
The influence of long-term livestock grazing on the soil status of a semi-arid rangeland was studied along a grazing gradient from a watering point in southern Afar Region of Ethiopia for two seasons. The soil samples were ...