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Journal articles on the topic 'Macowania'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Clark, Vincent Ralph, Joanne Bentley, Anthony P. Dold, Vathiswa Zikishe, and Nigel P. Barker. "The rediscovery of the Great Winterberg endemic Lotononis harveyi B.–E.van Wyk after 147 years, and notes on the poorly known Amathole endemic Macowania revoluta Oliv. (southern Great Escarpment, South Africa)." PhytoKeys 62 (April 15, 2016): 113–24. https://doi.org/10.3897/phytokeys.62.8348.

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South Africa's 800 km-long southern Great Escarpment hosts numerous endemic plant species only known from their type specimens or from very few records. This is a legacy of a 100–150 year lag between the pioneer work of 19<sup>th</sup> century botanists and repeat fieldwork in the 21<sup>st</sup> century. As a result, population and ecological data are lacking for many local endemic species. Here we report on the rediscovery of Lotononis harveyi B.–E.van Wyk 147 years after its original description, and provide the first detailed ecological notes on the poorly known shrub Macowania revoluta Ol

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2

Jilani, Mohammed S., Dexter Tagwireyi, Louis L. Gadaga, Charles C. Maponga, and Cosmas Mutsimhu. "Cognitive-Enhancing Effect of a Hydroethanolic Extract of Crinum macowanii against Memory Impairment Induced by Aluminum Chloride in BALB/c Mice." Behavioural Neurology 2018 (October 4, 2018): 1–10. http://dx.doi.org/10.1155/2018/2057219.

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Crinum macowanii is a bulbous plant indigenous to many parts of Southern Africa. Extracts of C. macowanii have gained interest since the discovery of various alkaloids, few of which possess acetylcholinesterase inhibitory activity. The present study was performed to evaluate the effect of a crude hydroethanolic extract of C. macowanii against aluminum chloride-induced memory impairment in mice using the Morris water maze and the novel object recognition task. C. macowanii (10, 20, and 40 mg/kg p.o) was administered daily for five weeks, while donepezil (3 mg/kg p.o) was used as the positive co

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3

Mugwagwa, Andrew T., Louis L. Gadaga, William Pote, and Dexter Tagwireyi. "Antiamnesic Effects of a Hydroethanolic Extract of Crinum macowanii on Scopolamine-Induced Memory Impairment in Mice." Journal of Neurodegenerative Diseases 2015 (October 8, 2015): 1–9. http://dx.doi.org/10.1155/2015/242505.

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Crinum macowanii has been found to contain alkaloids that have activity against acetylcholinesterase enzyme in vitro. The present study was undertaken to investigate the in vivo ability of hydroethanolic crude extract of Crinum macowanii to ameliorate memory impairment induced by scopolamine. Thirty-six male Balb/c mice weighing around 25–35 g were employed in the present investigation. Y-maze and novel object recognition apparatus served as the exteroceptive behavioural models, and scopolamine-induced amnesia served as the interoceptive behavioural model. C. macowanii (10, 20, and 40 mg/kg p.

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4

Clark, Vincent Ralph, Joanne Bentley, Anthony P. Dold, Vathiswa Zikishe, and Nigel P. Barker. "The rediscovery of the Great Winterberg endemic Lotononis harveyi B.–E.van Wyk after 147 years, and notes on the poorly known Amathole endemic Macowania revoluta Oliv. (southern Great Escarpment, South Africa)." PhytoKeys 62 (April 15, 2016): 113–24. http://dx.doi.org/10.3897/phytokeys.62.8348.

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5

Nair, J. J., A. K. Machocho, W. E. Campbell, et al. "Alkaloids from Crinum macowanii." Phytochemistry 54, no. 8 (2000): 945–50. http://dx.doi.org/10.1016/s0031-9422(00)00128-x.

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6

Elgorashi, Esameldin E., Siegfried E. Drewes, and Johannes van Staden. "Alkaloids from Crinum macowanii." Biochemical Systematics and Ecology 29, no. 7 (2001): 749–50. http://dx.doi.org/10.1016/s0305-1978(00)00096-x.

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7

Ebinghaus, Malte, Wolfgang Maier, Michael J. Wingfield, and Dominik Begerow. "New host associations and a novel species for the gall-inducing acacia rust genus Ravenelia in South Africa." MycoKeys 43 (December 4, 2018): 1–21. https://doi.org/10.3897/mycokeys.43.25090.

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Trees in the genus Vachellia (previously Acacia) are commonly infected by the gall-inducing rusts Ravenelia macowaniana and R. evansii. Rust galls bearing aecial infections and relating uredinial and telial infections on the leaves of nine Vachellia species not previously recorded to be infected by Ravenelia spp. have recently been collected in South Africa. The rust fungi causing these infections were characterised using molecular phylogenetic analyses of DNA sequence data of the LSU and ITS rDNA regions as well as morphological examinations. The host range of R. macowaniana and R. evansii wa

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8

Sebola, Tendani E., Nkemdinma C. Uche-Okereafor, Lukhanyo Mekuto, Maya Mellisa Makatini, Ezekiel Green, and Vuyo Mavumengwana. "Antibacterial and Anticancer Activity and Untargeted Secondary Metabolite Profiling of Crude Bacterial Endophyte Extracts from Crinum macowanii Baker Leaves." International Journal of Microbiology 2020 (December 10, 2020): 1–15. http://dx.doi.org/10.1155/2020/8839490.

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This study isolated and identified endophytic bacteria from the leaves of Crinum macowanii and investigated the potential of the bacterial endophyte extracts as antibacterial and anticancer agents and their subsequent secondary metabolites. Ethyl acetate extracts from the endophytes and the leaves (methanol: dichloromethane (1 : 1)) were used for antibacterial activity against selected pathogenic bacterial strains by using the broth microdilution method. The anticancer activity against the U87MG glioblastoma and A549 lung carcinoma cells was determined by the MTS (3-(4,5-dimethylthiazol-2-yl)-

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9

Lam, Cheuk W., Andrew Wakeman, Abin James, Athar Ata, Robert M. Gengan, and Samir A. Ross. "Bioactive steroidal alkaloids from Buxus macowanii Oliv." Steroids 95 (March 2015): 73–79. http://dx.doi.org/10.1016/j.steroids.2014.12.002.

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10

Bytebier, Benny. "Eulophia edwardii (Orchidaceae), a new species from the Pondoland Centre of Endemism in South Africa." Plant Ecology and Evolution 156, no. 3 (2023): 326–32. http://dx.doi.org/10.5091/plecevo.105931.

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Background and aims – Despite the fact that the orchid flora of South Africa is well documented, new species are still being discovered. The identity of an Eulophia subpopulation from near Port Edward in KwaZulu-Natal has been ambiguous. Some thought that it belongs to Eulophia schnelliae, currently considered a synonym of Eulophia macowanii, whereas others were of the opinion that it was potentially a new species. Both hypotheses are investigated here. Material and methods – Plants were studied in the field and herbarium specimens, including types, were consulted. The relevant published liter

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11

Bytebier, Benny. "Eulophia edwardii (Orchidaceae), a new species from the Pondoland Centre of Endemism in South Africa." Plant Ecology and Evolution 156, no. (3) (2023): 326–32. https://doi.org/10.5091/plecevo.105931.

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Background and aims – Despite the fact that the orchid flora of South Africa is well documented, new species are still being discovered. The identity of an Eulophia subpopulation from near Port Edward in KwaZulu-Natal has been ambiguous. Some thought that it belongs to Eulophia schnelliae, currently considered a synonym of Eulophia macowanii, whereas others were of the opinion that it was potentially a new species. Both hypotheses are investigated here. Material and methods – Plants were studied in the field and herbarium specimens, including types, were consulted. The relevant published liter

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12

Slabbert, M. M., M. H. de Bruyn, D. I. Ferreira, and J. Pretorius. "Regeneration of bulblets from twin scales ofCrinum macowanii in vitro." Plant Cell, Tissue and Organ Culture 33, no. 2 (1993): 133–41. http://dx.doi.org/10.1007/bf01983226.

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13

Rebotiloe, F. Morare, Ubomba-Jaswa Eunice, and H. Serepa-Dlamini Mahloro. "Isolation and identification of bacterial endophytes from Crinum macowanii Baker." African Journal of Biotechnology 17, no. 33 (2018): 1040–47. http://dx.doi.org/10.5897/ajb2017.16350.

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14

Venter, S., and T. J. Edwards. "A revision of Ledebouria(Hyacinthaceae) in South Africa. 2. Two new species, L. crispa and L. parvifolia, and L. macowanii re-instated." Bothalia 28, no. 2 (1998): 179–82. http://dx.doi.org/10.4102/abc.v28i2.635.

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Two endemic Ledebouria Roth species are described with notes, diagnostic characters, distributions and alliances. L. crispa appears to be allied to L. socialis (Baker) Jessop with which it shares densely gregarious, epigeal bulbs and L. undulata (Jacq.) Jessop of the Northern and Western Cape which shares crispate leaf margins. L parvifolia is endemic to Mpumalanga (eastern Transvaal) and was recorded from a single locality near Graskop; it differs from L. cooperi (Hook.f.)Jessop in having hairy upper leaf surfaces. L macowanii (Baker) S.Venter is re instated; it is distinguished from L. coope

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15

Elgorashi, Esameldin E., Siegfried E. Drewes, and Johannes Van Staden. "Organ-to-organ and seasonal variation in alkaloids from Crinum macowanii." Fitoterapia 73, no. 6 (2002): 490–95. http://dx.doi.org/10.1016/s0367-326x(02)00164-8.

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16

Slabbert, M. M., M. H. de Bruyn, D. I. Ferreira, and J. Pretorius. "Adventitious in vitro plantlet formation from immature floral stems of Crinum macowanii." Plant Cell, Tissue and Organ Culture 43, no. 1 (1995): 51–57. http://dx.doi.org/10.1007/bf00042671.

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17

SMITH, GIDEON F., and ESTRELA FIGUEIREDO. "×Senecurio, a new nothogenus for the hybrid ×S. kleiniiformis (Asteraceae subfam. Asteroideae tr. Senecioneae)." Phytotaxa 464, no. 2 (2020): 185–87. http://dx.doi.org/10.11646/phytotaxa.464.2.6.

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As comprehensively argued by Ozerova et al. (2017), commonly cultivated South African material widely known as Senecio kleiniiformis Suessenguth (1937: 45), (Asteraceae subfam. Asteroideae tr. Senecioneae) (Fig. 1) represents an intergeneric hybrid derived from a species of Curio Heath (1997: 136) and Senecio tropaeolifolius MacOwan ex Mueller (1867: 242).

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18

Duri, Zvitendo J., John P. Scovill, and John W. Huggins. "Activity of a methanolic extract of ZimbabweanCrinum macowanii against exotic RNA virusesin vitro." Phytotherapy Research 8, no. 2 (1994): 121–22. http://dx.doi.org/10.1002/ptr.2650080217.

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19

Kunitake, Hisato, Toshiki Nakashima, Kinya Mori, Masanobu Tanaka, Akira Saito, and Masahiro Mii. "Production of interspecific somatic hybrid plants between Asparagus officinalis and A. macowanii through electrofusion." Plant Science 116, no. 2 (1996): 213–22. http://dx.doi.org/10.1016/0168-9452(96)04389-0.

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20

Sebola, Tendani. "Phytochemical analysis, antibacterial testing and two-dimensional gas chromatographic analysis of Crinum macowanii bulbs." New Biotechnology 33 (July 2016): S161. http://dx.doi.org/10.1016/j.nbt.2016.06.1279.

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21

Wood, A. R., and S. D. Sym. "Endophyllum macowanianum a new combination for Aecidium macowanianum (Uredinales — Pucciniaceae) and a note on E. macowanii." South African Journal of Botany 70, no. 4 (2004): 667–70. http://dx.doi.org/10.1016/s0254-6299(15)30209-x.

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22

Maroyi, Alfred. "A review of ethnoboatany, therapeutic value, phytochemistry and pharmacology of Crinum macowanii Baker: A highly traded bulbous plant in Southern Africa." Journal of Ethnopharmacology 194 (December 2016): 595–608. http://dx.doi.org/10.1016/j.jep.2016.10.046.

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23

Khunoana, Sewela, Sundarajen Parani, Oluwatobi Samuel Oluwafemi, Derek Tantoh Ndinteh, and Kriveshini Pillay. "Synthesis of gold nanoparticles using Crinum macowanii bulb extracts and the application of these materials in blood detections at crime scenes." Luminescence 35, no. 2 (2019): 187–95. http://dx.doi.org/10.1002/bio.3710.

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24

Manning, J. C., and P. Goldblatt. "The native and naturalised species of Peltocalathos and Ranunculus (Ranunculaceae: Ranunculeae) in southern Africa." Bothalia 43, no. 2 (2013): 179–96. http://dx.doi.org/10.4102/abc.v43i2.94.

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The five native and naturalised species of Ranunculus L. and Peltocalathos Tamaru (Ranunculaceae: Ranunculeae) from southern Africa are reviewed, with full descriptions and nomenclature, taxonomic history, ecological notes, and distribution data. All species are illustrated. Peltocalathos, a monotypic genus based on R. baurii MacOwan, has been overlooked in the regional literature until now. The new name R. dregei J.C.Manning Goldblatt is proposed as a replacement name for the later homonym R. meyeri Harv., non Lowe. We conclude that the poorly known R. capensis Thunb. represents juvenile form

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25

Norman, D. J., J. M. F. Yuen, and N. C. Hodge. "New Disease on Ornamental Asparagus Caused by Xanthomonas campestris in Florida." Plant Disease 81, no. 8 (1997): 847–50. http://dx.doi.org/10.1094/pdis.1997.81.8.847.

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From dark, water-soaked lesions on stems of asparagus tree fern (Asparagus virgatus) in commercial nurseries in Florida, 33 xanthomonad strains were isolated. Strains formed large, round, butyrus, bright yellow colonies on yeast dextrose calcium carbonate medium, and were gram negative, oxidase negative, catalase positive, motile, strictly aerobic, and did not hydrolyze starch. Strains were further characterized by carbon substrate utilization patterns (Biolog), and by fatty acid methyl esters (FAME) analyses. The metabolic fingerprints of most strains were similar to Xanthomonas campestris pv

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26

Gore, Vijay Udhav. "On the Diversity and Taxonomic Evaluation of Wood-Decaying Fungi from Ajanta Forest Caves, Maharashtra, India." Bioscience Biotechnology Research Communications 16, no. 4 (2023): 241–48. https://doi.org/10.21786/bbrc/16.4.5.

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In the present investigation, 89 specimens of wood-decaying fungi were collected between the viewpoint and Ajanta cave of the famous ecotourist spot of Ajanta forest, research was carried out during year 2014 to 2021. Specimens were identified according to macroscopic characteristics on site and also in microscopic details in the laboratory. As far as we know we are reporting for the first time the diversity of wood-decaying fungi from Ajanta Forest, which consists of 28 genera and 39 species. Among these 35 species were annual and 4 species were perennial. Most dominating to rarely observed g

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27

Reid, Derek A., and Albert Eicker. "South African fungi. 4. Amanita pleropus (Kalchbr. & MacOwan) D.A. Reid, a further collection of this South African species." South African Journal of Botany 62, no. 3 (1996): 167–68. http://dx.doi.org/10.1016/s0254-6299(15)30618-9.

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28

"Buxus macowanii." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.10476.

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29

Taylor, J. E. "Trimmatostroma macowanii. [Descriptions of Fungi and Bacteria]." IMI Descriptions of Fungi and Bacteria, no. 135 (August 1, 1998). http://dx.doi.org/10.1079/dfb/20056401349.

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Abstract A description is provided for Trimmatostroma macowanii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Protea angolensis, P. nitida, P. petiolaris, Protea spp. DISEASE: Leaf spot. GEOGRAPHICAL DISTRIBUTION: South Africa, Malawi, Zimbabwe. TRANSMISSION: Probably splash-dispersed.

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30

Ngobeni, B., S. S. Mashele, N. J. Malebo, E. van der Watt, and I. T. Manduna. "Disruption of microbial cell morphology by Buxus macowanii." BMC Complementary Medicine and Therapies 20, no. 1 (2020). http://dx.doi.org/10.1186/s12906-020-03049-5.

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31

Ogofure, Abraham Goodness, Tendani Sebola, and Ezekiel Green. "Metabolomic profile and bioactivity of fungal endophytes isolated from Crinum macowanii." BMC Complementary Medicine and Therapies 25, no. 1 (2025). https://doi.org/10.1186/s12906-025-05011-9.

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32

Van Staden, P. J., and G. J. Bredenkamp. "A floristic analysis of forest and thicket vegetation of the Marakele National Park." Koedoe 49, no. 1 (2006). http://dx.doi.org/10.4102/koedoe.v49i1.109.

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One of the major plant communities identified in the Marakele National Park was forest. It became clear that this major forest community contained various forest and thicket communities. Relevés compiled in the forest were classified by TWINSPAN and Braun-Blanquet procedures identified six communities that are hierarchically classified. The forests dominated by Podocarpus latifolius and Widdringtonia nodiflora represent Afromontane Forests, whereas the Buxus macowanii-dominated dry forests and Olea europaea subsp. africana represent Northern Highveld Forests. A further group of communities rep

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33

Sebola, Tendani E., Nkemdinma C. Uche‐Okereafor, Kudzanai I. Tapfuma, Lukhanyo Mekuto, Ezekiel Green, and Vuyo Mavumengwana. "Evaluating antibacterial and anticancer activity of crude extracts of bacterial endophytes from Crinum macowanii Baker bulbs." MicrobiologyOpen 8, no. 12 (2019). http://dx.doi.org/10.1002/mbo3.914.

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34

Botha, Christo J. "Krimpsiekte in South Africa: Historical perspectives." Journal of the South African Veterinary Association 84, no. 1 (2013). http://dx.doi.org/10.4102/jsava.v84i1.1059.

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Krimpsiekte, also known as cotyledonosis or nentain sheep and goats, has been recognised as a disease entity since 1775. However, it was only in 1891 that Veterinary Surgeon Soga reproduced the condition by dosing Cotyledon (= Tylecodon) ventricosus leaves to goats. Professor MacOwan, a botanist, confirmed the identity of these nenta plants. From a South African veterinary toxicological point of view the date 1891 is of considerable historical significance as this was the first time that a plant was experimentally demonstrated to be toxic to livestock in South Africa. A chronological account o

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35

Verma, Surjeet, Motebang D. V. Nakin, Zesipho Makhosayafana, and Namrita Lall. "The Role of Aquatic Plants in Natural Products and Drug Discovery." Letters in Drug Design & Discovery 19 (July 1, 2022). http://dx.doi.org/10.2174/1570180819666220701103553.

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Background: Phytochemicals and their derivatives/analogues represent over 50% of the current medicines in worldwide clinical use. Despite a significant contribution to the total bioactive natural plant products, the aquatic plants are underestimated, and several species are extinct and in endangered list. Objective: The aim of this review article is to draw the attention of common people and scientists towards few important contributions of the aquatic plants to natural product chemistry and drug discovery by highlighting the chemical and pharmaceutical aspects of the same. Methods: The presen

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