Browsing Department of Biological Sciences by Title
Now showing items 28-47 of 63
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The Induction and Persistence of T Cell IFN- γ Responses after Vaccination or Natural Exposure Is Suppressed by Plasmodium falciparum 1
(Journal of Immunology, 2007-09-15)Abstract Epidemiological observations suggest that T cell immunity may be suppressed in malaria-endemic areas. In vitro studies, animal models, and limited data in humans link immunosuppression with malaria, malnutrition, ... -
The influence of reef type and seasonality on population structure of coral-reef fishes within Malindi Marine Park, Kenya
(Wiley Online Library, 2010-03-15)Effective conservation requires knowledge of the effects of habitat on distribution and abundance of organisms. Although the structure of coral reef fish assemblages is strongly correlated with attributes of reef structure, ... -
Isolation and characterization of lectins from the AG-D group of binucleate Rhizoctonia species
(springerlink, 2007)Isolates from 18 anastomosis groups (AGs) of binucleate Rhizoctonia were screened for lectin activity. Eight AGs (AG-B, AG-D, AG-F, AG-G, AG-H, AG-I, AG-R and AG-U) had low to moderate lectin activities. Among these, members ... -
Key biodiversity areas as globally significant target sites for the conservation of marine biological diversity
(Wiley Online Library, 2008-10)1. Recent approaches to the planning of marine protected area (MPA) networks for biodiversity conservation often stress the need for a representative coverage of habitat types while aiming to minimize impacts on ... -
Lectin Variation in Members of Rhizoctonia Species
(J-STAGE, 2004-09-30)Isolates from two multinucleate Rhizoctonia species, namely Rhizoctonia solani and Rhizoctonia circinata, and binucleate Rhizoctonia spp., were evaluated for the presence of lectins, using human erythrocytes. Isolates from ... -
Length–weight and length–length relationships of five threatened fish species from the Jamuna (Brahmaputra River tributary) River, northern Bangladesh
(ResearchGate, 2012-02)The small indigenous species, namely Ailiichthys punctata (Day, 1871), Botia lohachata (Chaudhuri, 1912), Chanda nama (Hamilton, 1822), Laubuca laubuca (Hamilton, 1822) and Mystus cavasius (Hamilton, 1822), comprise an ... -
Length–weight relationship of 39 selected reef fishes in the Kenyan coastal artisanal fishery
(Elsevier, 2010-09-09)a b s t r a c t Length–weight relationships (LWRs) are presented for 39 major fish species in the Kenyan artisanal marine fishery. Captures were made between the years 2001 and 2009. The parameters a and b of the equation ... -
Marbled lungfish growth rates in Lake Baringo, Kenya, estimated by mark-recapture
(Wiley Online Library, 2006-02)Mark-recapture was used to quantify the relationship between body mass (MT) and individual growth rates of sub-adult marbled lungfish Protopterus aethiopicus in Lake Baringo, Kenya. Specific growth rate (in mass) was found ... -
Molecular typing of Trichomonas vaginalis isolates by actin gene sequence analysis and carriage of T. vaginalis viruses
(Parasites & Vectors, 2017)Background: The protozoan parasite Trichomonas vaginalis is the most common non-viral, sexually transmitted pathogen. Although T. vaginalis is highly prevalent among women in Kenya, there is lack of data regarding genetic ... -
Morphomeristic study of sympatric Barbus species from a man-made reservoir in upland Kenya
(Wiley Online Library, 2012-03)The small Barbus are a widely distributed group of freshwater fishes in Africa whose taxonomy is yet to be resolved. This study used morphomeristic analysis of characters to distinguish and describe sympatric Barbus species ... -
Morphomeristic study of sympatric Barbus species from a man-made reservoir in upland Kenya
(African Journal of Ecology, 2012-03)Abstract The small Barbus are a widely distributed group of freshwater fishes in Africa whose taxonomy is yet to be resolved. This study used morphomeristic analysis of characters to distinguish and describe sympatric ... -
Movement and habitat use by the marbled lungfish Protopterus aethiopicus Heckel 1851 in Lake Baringo, Kenya
(Kluwer Academic Publishers, 2005-03)The marbled lungfish, Protopterus aethiopicus, a recent introduction into Lake Baringo, Kenya is now an important commercial species there. Because little is known about its behaviour, we used ultrasonic telemetry to ... -
Movement ecology of black marlin Istiompax indica in the Western Indian Ocean
(Journal of Fish Biology published by John Wiley & Sons Ltd on behalf of Fisheries Society of the British Isles, 2021-05)The black marlin Istiompax indica is an apex marine predator and is susceptible to overfishing. The movement ecology of the species remains poorly known, particularly within the Indian Ocean, which has hampered assessment ... -
Nanopore metatranscriptomics reveals cryptic catfsh species as potential Shigella fexneri vectors in Kenya
(www.nature.com/scientificreports, 2022)Bacteria in the Shigella genus remain a major cause of dysentery in sub-Saharan Africa, and annually cause an estimated 600,000 deaths worldwide. Being spread by contaminated food and water, this study highlights how ... -
A New Subgroup of Rhizoctonia AG-D, AG-D III, Obtained from Japanese Zoysia Grass Exhibiting Symptoms of a New Disease
(The American Phytopathological Society, 2006)Hayakawa, T., Toda, T., Ping, Q., Mghalu, J. M., Yaguchi, S., and Hyakumachi, M. 2006. A new subgroup of Rhizoctonia AG-D, AG-D III, obtained from Japanese zoysia grass exhibiting symptoms of a new disease. Plant Dis. ... -
A New Subgroup of Rhizoctonia AG-D, AG-D III, Obtained from Japanese Zoysia Grass Exhibiting Symptoms of a New Disease
(APS Journal, 2006-11)Isolates of an unidentified Rhizoctonia sp. (UN isolates) were obtained from Japanese zoysia grass (Zoysia japonica Steud) that exhibited symptoms of a new sheath rot disease. UN isolates were binucleate and showed hyphal ... -
Objectifs et priorités pour la conservation des oiseaux et de la biodiversité d'Afrique
(AJOL, 2007)La biodiversité est confrontée à une grave crise d'extinction avec des pertes d'espèces qui atteignent des niveaux trois fois plus importants que les moyennes estimées sur les temps géologiques. Cependant, ni la biodiversité, ... -
Occurrence and distribution of citrus gummosis (Phytophthora spp.) in Kenya
(African Association of Kenya, 2008)Citrus production in Kenya comprises sweet oranges, lemons, limes, tangerines, grapefruits and pummelo, occupying about 10,000 ha. Despite this large hectarage, Phytophthora foot rot (gummosis) occurs frequently leading ... -
Plant regeneration from leaf mesophyll derived protoplasts of cassava (Manihot esculenta Crantz)
(PLOS ONE, 2022)A high yield of isolated protoplast and reliable regeneration system are prerequisite for suc- cessful somatic hybridization and genome editing research. However, reproducible plant regeneration from protoplasts remains ... -
Potential of Vetiver Grass (Chrysopogon zizanioides) in Phytoremediation of Kipevu Wastewaters
(Kenya Aquatica Journal, 2019-12-30)Wastewater treatment worldwide has mainly been done using physical, chemical and biological treatment systems such as activated sludge and biological nutrient removal technologies. Mombasa produces large amounts of ...