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Cellular radiotoxicity of iodine-123
(Stellenbosch : Stellenbosch University, 2000-03)
ENGLISH ABSTRACT: The Auger electron emitter iodine-123 was examined in the form of 4-
[12311iodoantipyrineand as [12311Nal for its effectiveness in killing cells of different
sensitivity to photon irradiation. Micronucleus ...
The influence of different management practices on soil faunal activity in vineyard soils
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: Food demands for the ever-increasing human population is increasing the
pressure on the agricultural sector to produce more food. In order to satisfy these
demands, farmers are turning to chemical ...
The ability of terrestrial Oligochaeta to survive in ultramafic soils and the assessment of toxicity at different levels of organisation
(Stellenbosch : University of Stellenbosch, 2006-12)
Metals are natural elements of the earth crust usually present at low concentrations in all soils.
Although many metals such as cobalt, copper, iron and zinc are essential to living organisms, at
elevated concentrations ...
Cellular responses to Cd, Pb and Zn in shrews (Myosorex varius and Crocidura flavescens) and BALB/c mice
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: Shrews are excellent bioindicators of environmental heavy metal pollution. This is
due to their diets and the high rate of consumption at which these small mammals consume
their prey. Shrews feed mostly ...
Evaluation of the suitability of responses on various organisational levels in terrestrial Oligochaeta to determine species sensitivity relationships
(Stellenbosch : Stellenbosch University, 2011-03)
ENGLISH ABSTRACT: Species differ in their sensitivities to toxicants and these differences are exploited in ecological risk assessment methods such as species sensitivity distributions (SSDs). The most commonly used endpoints ...
Biology of the oleander mealybug, Paracoccus burnerae (Brain) (Hemiptera: Pseudococcidae)
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT:Chapter 1 - Mealybugs are tiny, soft-bodied insects which constitute the second largest scale insect family Pseudococcidae (Downie & Gullan 2004). The family comprises approximately 2000 species in 300 ...
Cellular stress responses to cadmium contamination as measure of sensitivity in intertidal molluscan species
(Stellenbosch : University of Stellenbosch, 2007-03)
The ability of various molluscan species to accumulate toxicants such as
cadmium from natural waters in quantities that are many orders of magnitude
higher than background levels are well-known. This phenomenon ...
Contamination levels in and cellular responses of intertidal invertebrates as biomarkers of toxic stress caused by heavy metal contamination in False Bay
(Stellenbosch : Stellenbosch University, 2004-03)
ENGLISH ABSTRACT:Heavy metals are persistent environmental contaminants whose sources of inputs into
the environment are both natural and anthropogenic. The levels of heavy metals
(cadmium, copper, nickel, lead and zinc) ...
Cellular biomarkers of exposure to the fungicide copper oxychloride, in the common garden snail Helix aspersa, in Western Cape vineyards
(Stellenbosch : University of Stellenbosch, 2001-03)
Copper oxychloride (Cu2CI(OH)3) is a broad-spectrum fungicide, intensively sprayed in many South
African vineyards and orchards. It is necessary to find accurate and effective methods of monitoring the
effects of this ...
Ecological relevance of suborganismal and population responses of terrestrial oligochaeta to the fungicide copper oxychloride
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: Copper oxychloride is a fungicide that is extensively used in vineyards in the Western
Cape to treat and prevent fungal diseases. It is however not clear what the effects are
on soil organisms, which ...