Browsing Botany by Title
Now showing items 201-220 of 261
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Screening of traditionally used South African medicinal plants against Candida albicans.
(2003)Candida species were discovered more than a century ago as a causative organism of oral thrush. In HIV patients, the presence of oral candidiasis has been shown to be the earliest opportunistic infection. Candidiasis ... -
Seasonal pharmacological and phytochemical properties of medicinal bulbs.
(2010)Medicinal bulbs form part of the diversified flora in South Africa. The plants are used extensively in South African traditional medicine in the treatment of various ailments. Due to the ever-increasing demand and the ... -
The secretory apparatus of Ceratotheca triloba (Pedaliaceae) : morphology and chemical composition of the secretion.
(2012)Ceratotheca triloba (Bernh.) E. Mey. ex Hook. f., commonly known as the wild foxglove, is a fast growing annual that is indigenous to southern Africa. The surface of the plant is covered with fine, hair-like trichomes, ... -
Seed dormancy and germination in Protea compacta R.Br. and Leucadendron daphnoides Meisn.
(1974)The germination responses of seed to a wide variety of treatments showed that both the pericarp and the embryo contribute to the dormant condition in Protea compacta. Germination can be improved to a greater or lesser ... -
Seed germination and medicinal properties of Alepidea species.
(2009)The rhizomes of Alepidea amatymbica and Alepidea natalensis are used for medicinal purposes. Because of the increase in demand for these plants the species is becoming scarce. As the seed biology of neither species is well ... -
Seedling establishment of Themeda triandra Forssk. in the montane grasslands of Natal.
(1994)Soil erosion and vegetation destruction have reached serious proportions in disturbed areas of the montane grasslands of the Natal Drakensberg. Little is known of the inherent ability of indigenous grasses to produce ... -
The senescence of the cut carnation (Dianthus caryophyllus L. cv. White Sim) flower.
(1985)A review of the literature pertaining to cut carnation flower senescence and the regulatory role of plant hormones in this process revealed the value of this system in physiological studies. Carnation flower senescence ... -
Sink regulation of photosynthesis in sugarcane
(2007)The C4 plant, sugarcane (Saccharum spp. hybrids), accumulates sucrose to high concentrations and, as a result, has been the focus of extensive research into the biochemistry and physiology of sucrose accumulation. Despite ... -
Somatic embryogenesis of Pinus patula Scheide et Deppe.
(1994)Immature, green female cones of Pinus patula Scheide et Deppe. were collected on a weekly basis during the South African summer months from December 1991 to February 1992 and from December 1992 to March 1993. Embryogenic ... -
Some aspects of biological control of seed storage fungi.
(1995)Under storage conditions of ambient temperature and relative humidity in South Africa, seed-associated mycoflora proliferates. Fusarium moniliforme is ubiquitous in newly-harvested maize, persisting for variable periods ... -
Some aspects of megagametophyte development and post-shedding seed behaviour of Encephalartos natalensis (Zamiaceae)
(2009)Very little is known about the post-shedding seed behaviour and megagametophyte development of the cycads, the most primitive extant seed-bearing plants, which pre-date the dinosaurs. In the present investigation, seeds ... -
Some implications of associated mycoflora during hydrated storage of recalcitrant seeds of Avicennia marina (Forssk.) Vierh.
(2004)Three questions are considered in the context of the possible effects of seedassociated mycoflora, typified by Fusarium moniliforme, during hydrated storage of recalcitrant seeds of the tropical species, ... -
Some investigations of the responses of Quercus robur and Ekebergia capensis embryonic axes to dehydration and cryopreservation.
(2000)Recalcitrant seeds are those that are shed at high water contents, are actively metabolic throughout development, when they are, and remain, desiccation-sensitive, and may also be chilling sensitive. These properties ... -
Some investigations towards the cryopreservation of sugarcane germplasm.
(2009)Sugarcane has become an increasingly important crop in recent years, with South Africa featuring as one of the prominent producers. This has led to a significant growth in the South African sugarcane industry, translating ... -
Some invetsigations on the responses to desiccation and exposure to cryogenic temperatures of embryonic axes of Landolphia kirkii.
(2011)Landolphia kirkii is scrambling shrub forming an integral part of the flora along the coastal areas of north-eastern South Africa. The non-sustainable harvesting of fruit as food source, by monkeys and rural communities ... -
Some physiological and growth responses of three eucalyptus clones to soil water supply.
(2002)The response of three Eucalyptus spp. clones (GC550, GU210 and TAG14) to water availability was assessed in terms of growth, plant water status, leaf gas exchange, whole plant hydraulic characteristics (both root and ... -
South African medicinal orchids : a pharmacological and phytochemical evaluation.
(2012)The Orchidaceae makes up the largest and most diverse family of flowering plants. Orchids are popular, often expensive ornamentals, with a broad range of ethnobotanical applications. There is very limited documented ... -
Southern African plants used to treat central nervous system related disorders.
(2009)The majority of the population in South Africa use traditional health care to treat various mental conditions. This thesis has two main objectives; to bring together a comprehensive and detailed record of psychotropic ... -
Storage of frequently used traditional South African medicinal plants.
(2003)The post-harvest physiology of nine frequently used indigenous southern African medicinal plants was investigated, in particular the effects of storage time and accelerated ageing on the biological activity and chemical ...