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Now showing items 11-20 of 20
Flooding and its influence on diazotroph populations and soil nitrogen levels in the Okavango Delta
(South African Journal of Botany http://www.elsevier.com/wps/find/journaldescription.cws_home/707238/description#description, 2004)
Effects of flooding on soil nitrogen (N), and asymbiotic
nitrogen fixing bacterial (diazotroph) populations of the
Okavango Delta were investigated. Diazotrophs from
the rhizosphere of dominant annual and perennial
grasses ...
Mycoflora and natural occurrence of aflatoxins and fumonisin B1 in cassava and yam chips from Benin, West Africa
(Elsevier B.V. www.elsevier.com/locate/ijfoodmicro, 2008)
The presence of fungi, aflatoxins and fumonisin B1 in cassava and yam chips (during 28 processing and storage) were evaluated during two
consecutive seasons in two agroecological zones of Benin (Northern Guinea Savannah, ...
Molecular Identification of Campylobacter concisus
(American Society for Microbiology. http://jcm.asm.org/, 2001)
A 1.6-kb DNA fragment isolated from a Campylobacter concisus genomic library gave C. concisus-specific restriction
fragment length patterns when it was used as a probe in hybridization studies. All of the strains ...
Monitoring maternity mortality in Botswana
(Elsevier, www.rhmjournal.org.uk, 2007)
This paper describes the maternity monitoring system in Botswana, developed in 1998,
and the main methods used: maternal death and morbidity reviews at service delivery level, analysis
by the National Maternal Mortality ...
Determination of allele frequencies in nine short tandem repeat loci of five human sub-populations in Botswana
(Academic Journals, www.academicjournals.org, 2008-04-17)
Allele frequencies for nine short tandem repeat (STR) loci from the AmpFlSTR® Profiler Plus PCR
Amplification Kit were determined in five subpopulations across Botswana and tested for suitability for
use in individual ...
Effects of prolonged UV-B exposure in plants
(Academic Journals. http://www.academicjournals.org/AJB, 2008)
Over the past few decades, there has been a depletion of the stratospheric ozone layer due to
emissions of halogen-containing compounds of anthropogenic origin. This has resulted in a
concomitant increase in solar ...
Evaluation of methods for the isolation, detection and quantification of cyanobacterial hepatotoxins
(Elsevier Ltd. http://www.elsevier.com/wps/find/journaldescription.cws_home/505509/description#description, 2006)
Cyanobacterial hepatotoxins such as microcystins and nodularins have been responsible for the poisoning of both animals and humans who
ingest or come into contact with toxic blooms. They are extremely stable in water due ...
Prevalence, antimicrobial resistance profiles of Listeria monocytognes from various foods in Gaborone, Botswana
(Academic Journals, http://www.academicjournals.org/AJB, 2009)
Listeria monocytogenes is known to cause epidemic and sporadic cases of listeriosis. The present study investigated the occurrence, antibiograms and molecular serotypes of the organism in various retail outlets in Gaborone, ...
Carriage of micro-organisms by domestic cockroaches and implications on food safety
(ICIPE - African Insect Science for Food and Health, http://journals.cambridge.org/action/displayJournal?jid=JTI, 2006)
Domestic cockroaches Blattella germanica were trapped from various homes in
Gaborone, Botswana using ‘Dyroach’ traps. Isolations of bacteria, yeasts and moulds were
done on external body parts and on the faecal pellets ...
Potential effects of prolonged ultraviolet radiation exposure in plants: chloroplast DNA analysis
(IDOSI Publications, http://idosi.org/, 2007)
The present study on the Namaqualand daisy, Dimorphotheca sinuata sought to address two main questions: - first whether the natural populations show any evidence of variation in the chloroplast genome, and secondly if the ...