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TLC phytochemical screening in some Nigerian loranthaceae
(Academic Journals, 2010-07) Wahab, O. M.; Ayodele, A. E.; Moody, J. O.
The phytochemical screening of specimens of the family Loranthaceae collected from the field was carried out with a view to ascertaining chemical constituents present and determining their importance in the taxonomic delimitation of the taxa. Thirty field collections from various localities were screened for secondary metabolites such as alkaloids, anthraquinones, terpenoids and ketones using thin layer chromatography (TLC). Most of the samples tested slightly positive for alkaloids, anthraquinone-related compounds, terpenoids and terpenoidrelated compounds but ketonic compounds were of rare occurrence in all the samples. The chemical profile was useful in separating the collections of Phragmanthera from the other two genera while the collections of Globimetula were found embedded in Tapinanthus. The secondary metabolites obtained however showed the relative affinity of the Nigerian species of Tapinanthus. It is concluded that chemical characters may only be used as supporting evidence in the identification and delimitation of the taxa.
Scanning electron microscopy of fruits in the West African polygonaceae
(Institute of Botany, Chinese Academy of Sciences, 2010) Ayodele, A. E.; Zhou Z.
The fruit morphology of 18 taxa representing seven genera of the family Polygonaceae in West Africa was investigated using scanning electron microscopy. The achenes are trigonous, lenticular, globose, subglobose, heart shaped, ovoid, or cone like. Sizes range from 0.12 × 0.10 cm2 in Polygonum plebeium to 7.87 × 0.58 cm2 in Afrobrunnichia erecta. Colors are brown to black. The cells are isodiametric in P. plebeium, irregular in A. erecta, Antigonon leptopus, and Harpagocarpus snowdenii, and polygonal in other species. The walls are straight, curved, or undulate and are either raised or depressed. Afrobrunnichia erecta is characterized by deeply sinuate lateral walls. The cell surface may be smooth or tuberculate or fibrillate in the family, usually covered with wax deposits. The combination of these characters is mainly taxonomically useful at the tribal level and rarely at the specific or infraspecific level for the delimitation of the taxa.
Foliar epidermal morphology and anti-diabetic property of andrographis paniculata(burm.f.) wall ex nees
(2010) Fasola, T. R.; Ayodele, A. E.; Odetola A. A.; Umotok, N. E.
The leaf epidermal features and anti diabetic property of Androgragphis paniculata were investigated. The epidermal cells are polygonal to irregular with curved to undulate anticlinal walls on both surfaces of the leaf. The leaf is hypostomatic with stomata restricted to the abaxial surface. Stomata type is axillocytic. The epidermal cells contain deposits of crystal oxalates while cystoliths are found in a few cells. The leaf extract was evaluated for hypoglycemic effects. There was significant hypoglycemic effect in alloxan induced diabetic rats following administration of the leaf aqueous extract. The result shows that the level of fasting blood sugar was dependent on the previous level of basal blood sugar in the four groups of rats used for this study. Treatment of the rats with A. paniculata showed a dose dependent relationship with the time it took for the blood of the rats to return to the basal blood sugar levels. The study supports the use of the plant in the management and treatment of diabetes.
An appraisal of the contributions of herbalism to primary health care delivery in south west Nigeria
(2010) Kadiri, A. B.; Adekunle, A. A.; Ayodele, A. E.
Herbalism contributes significantly to the primary health care delivery system in the southwest Nigeria through sale and administration of different herbal medicinal preparations which are available in a number of ways like tinctures, herbal wine and elixirs, tisanes, decoctions, macerates, topical, poultices, whole herb consumption, syrup, extracts, inhalation, local rings, incision and rubbing, charm belt, and other charm apparels. Medicines may be hawked by the ambulatory vendors (apothecary) or patients consulting practitioners. Charges are relatively cheap, consultation is prompt and the medicines are reportedly efficacious. Non-exclusion of anybody from patronizing and being organized around people’s needs and expectations, which are two of the key elements of WHO to achieve the ultimate goal of primary health care of better health for all are affectively entrenched in the practice. We adopted and employed basic scientific method, anthropological training skills and study approaches in Humanities to elicit our findings. Government support is highly solicited

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