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Browsing Research Articles (Plant Science) by Issue Date
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Oelofse, Dean; Dubery, Ian A.; Meyer, Riaan; Arendse, Melanie S.; Gazendam, Inge; Berger, David Kenneth
(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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Rakuambo, Ntungufhadzeni Christopher; Meyer, Jacobus Johannes Marion; Hussein, Ahmed A.; Huyser, Carin; Mdlalose, S.P.; Raidani, T.G.
(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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Smith, G.F. (Gideon Francois), 1959-; Roux, J.P. (Jacobus Petrus); Tolley, Krystal; Conrad, Ferozah
(Academy of Science of South Africa, 2006-11)
No abstract available
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Girard, Cécile; Rivard, Daniel; Kiggundu, Andrew; Kunert, Karl J.; Gleddie, Stephen C.; Cloutier, Conrad; Michaud, Dominique
(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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Oh, Thomas J.; Cullis, Margaret A.; Kunert, Karl J.; Engelborghs, Iris; Swennen, Rony; Cullis, C.A. (Christoper Ashley)
(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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Bapela, Mahwahwatse Johanna; Lall, Namrita; Isaza-Martinez, J.H.; Regnier, Thierry J.C.; Meyer, Jacobus Johannes Marion
(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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Mahapatra, Anita; Mativandlela, Sannah Patience Nkami; Binneman, Brigitte; Fourie, Petrus Bernard; Hamilton, Chris J.; Meyer, Jacobus Johannes Marion; Van der Kooy, Frank; Houghton, P.J. (Peter James); Lall, Namrita
(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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Bredenkamp, C.L.; Smith, G.F. (Gideon Francois), 1959-
(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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Grace, Olwen Megan; Kokubun, T.; Veitch, N.C.; Simmonds, Monique S.J.
(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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Smith, G.F. (Gideon Francois), 1959-; Walters, Michele; Figueiredo, Estrela
(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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Tshikalange, Thilivhali Emmanuel; Meyer, Jacobus Johannes Marion; Lall, Namrita; Munoz, E.; Sancho, R.; Van de Venter, Maryna; Oosthuizen, Vinette
(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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Mostert, Rachel Elizabeth; Bredenkamp, George J.; Klopper, Hannes L.; Verwey, Cornie; Mostert, T.H.C. (Theodorus Hendrik Cornelis); Hahn, Norbert
(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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Martins, Celia Marilia; Beyene, Getu; Hofs, J.L.; Kruger, Kerstin; Van der Vyver, Christell; Schluter, Urte; Kunert, Karl J.
(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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Stapelberg, F. Hein; Van Rooyen, Margaretha W.; Bothma, Jacobus du P.; Van der Linde, Michael J. (Mike); Groeneveld, Hendrik T.
(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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Van Rooyen, Margaretha W.; Van Rooyen, Noel; Bothma, Jacobus du P.; Van Den Berg, Hendrik M.
(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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Swanepoel, Wessel
(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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Kunert, Herbert W.; Machatine, Augusto Gonçalo Jose; Malherbe, Johan B.; Barnas, J.; Hoffmann, A.; Wagner, M.R.
(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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Cullis, C.A. (Christoper Ashley); Vorster, Barend Juan; Van der Vyver, Christell; Kunert, Karl J.
(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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Mbaveng, Armelle T.; Ngameni, Bathélémy; Kuete, Victor; Simo, I.K.; Ambassa, P.; Roy, R.; Bezabih, M.; Etoa, F-X.; Ngadjui, Bonaventure T.; Abegaz, B.M.; Meyer, Jacobus Johannes Marion; Lall, Namrita; Beng, Veronique P.
(Elsevier, 2008-03)
Please refer to abstract in article
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Smith, G.F. (Gideon Francois), 1959-; Buys, M.; Walters, Michele; Herbert, D.; Hamer, Michelle
(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 ...