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Browsing Research Articles (Plant Science) by Issue Date
Now showing items 1-20 of 327
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(Elsevier, 2006)Chloroform and ethanol extracts of root bark of Securidaca longepedunculata, Wrightia natalensis and Rhoicissus tridentata were investigated for their in vitro activity on the contraction of corpus cavernosal smooth muscle ...
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(Elsevier, 2006)Extracts from apple fruit (cultivar “Granny Smith”) inhibited the cell-wall degrading polygalacturonase (PG) activity of Colletotrichum lupini, the causal agent of anthracnose on lupins, as well as Aspergillus niger PG. ...
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(Academy of Science of South Africa, 2006-11)No abstract available
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(Blackwell, 2007-03)*We assessed the ability of the fungal elicitor arachidonic acid to induce cystatin genes in tomato (Solanum lycopersicum), using a cDNA expression library from arachidonate-treated leaves. *The cDNAs of two novel cystatins ...
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(Blackwell, 2007-04)The molecular basis of somaclonal variation is not precisely known, but both genetic and epigenetic mechanisms have been proposed. The available evidence points toward the existence of labile portions of the genome that ...
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(Elsevier, 2007-11)A correlation between plant growth and accumulation of naphthoquinones (shinanolone (1), 7-methyljuglone (2) and diospyrin (3)) was investigated in seeds and seedlings of Euclea natalensis A.DC. In this study, the seeds ...
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(Elsevier, 2007-12)The naphthoquinone 7-methyljuglone (5-hydroxy-7-methyl-1,4-naphthoquinone) has previously been isolated and identified as an active component of root extracts of Euclea natalensis which displays antitubercular activity. ...
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(Elsevier, 2008)Terminalia sericea extract (IC50 = 92 mg/ml) exhibited a considerable α-glucosidase inhibitory activity which was better than acarbose (IC50 = 131 mg/ml) under our assay conditions. In the reverse transcriptase assay, T. ...
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(British Cactus and Succulent Society, 2008)In alpha-taxonomic terms the Eastern Cape Province of South Africa, which includes the entire Albany Centre of Endemism, is one of the richest succulent plant regions in the world. The mild climate of the region is also ...
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Characterisation of a nataloin derivative from Aloe ellenbeckii, a maculate species from east Africa (Elsevier, 2008)6′-Malonylnataloin, a malonylated derivative of the rare anthrone nataloin, is characterised for the first time from Aloe ellenbeckii A. Berger. Anthrone C-glycosides are among a suite of chemical constituents of systematic ...
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(Academy of Science of South Africa, 2008)The South African National Biodiversity Institute conducted a questionnaire-based enquiry in 2004 into perceptions of the current state of botany in South Africa. Terms of reference were numbers of botanical papers ...
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Major vegetation types of the Soutpansberg Conservancy and the Blouberg Nature Reserve, South Africa (South African National Parks, 2008)The major vegetation types (MVT) and plant communities of the Soutpansberg Centre of Endemism are described in detail, with special reference to the Soutpansberg Conservancy and the Blouberg Nature Reserve. Phytosociological ...
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(Blackwell, 2008)Bacillus thuringiensis (Bt) crops require a high dosage of Bt toxin to delay development of insect resistance, in particular, when the refuge strategy is applied. This strategy is threatened by plant developmental and ...
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(South African National Parks, 2008)Springbok behavioural ecology in the Kalahari was examined with the use of public questionnaires and field forms. Springbok favoured grass and forbs overall more than shrubs and trees, but diet selection was influenced by ...
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(Elsevier, 2008)Ceraria kuneneana described as a new species, is only known from the Kaokoveld, Namibia. Illustrations of the species and a distribution map are provided. Diagnostic characters of C. kuneneana include an often slender erect ...
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(Elsevier, 2008)The Space Symmetry and the Time Reversal Symmetry of vibrational modes in Si, Ge and diamond are investigated. Using Space Symmetry we have derived the Lattice Mode Representation. Reducing it onto phonon species we obtain ...
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(South African National Parks, 2008)A landscape map of the Kalahari Gemsbok National Park is presented. Mapping is at a finer scale than previous vegetation and habitat maps for the same area. The landscapes were grouped into seven large classes and a total ...
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(Oxford University Press, 2008)BACKGROUND: The presence of chloroplast-related DNA sequences in the nuclear genome is generally regarded as a relic of the process by which genes have been transferred from the chloroplast to the nucleus. The remaining ...
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(Elsevier, 2008-03)Please refer to abstract in article
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(Academy of Science of South Africa, 2008-07)The need for taxonomy is imperative as we cannot protect organisms that are not known and which remain unidentified and uncharacterised, thereby limiting our capacity to understand them and to assess the influence of ...
Now showing items 1-20 of 327