Antimicrobial Activity of Ficus Leaf Extracts on some Fungal and Bacterial Pathogens of Discorea rotundata from Southwest Nigeria

Simple item page
dc.contributor.authorOlukanni, Olumide
dc.date.accessioned2022-05-06T11:12:30Z
dc.date.available2022-05-06T11:12:30Z
dc.date.issued2011
dc.description.abstractBio-control methods have become a common practice in horticulture and crop husbandry due to the attendant negative impact of fungicides and other chemical agents on soil, vegetation and environment. Most fungicides accumulate in plant tissues and subsequently trigger carcinogenic effects in animals and humans. The leaf extracts of Ficus thonningii, F. saussureana, F. exasperata and F. sur were screened for antimicrobial properties on eight (8) fungal species which included Aspergillus flavus, A. niger, Botryodiploidia theobromae, Fusarium oxysporum, F. solani, Penicillium chrysogenum, P. oxalicum and Rhizopus stolonifer and two (2) bacterial species viz; Pseudomonas spp. and Klebsiella spp. which were isolated from the rot portions of tubers of Dioscorea rotundata. The extracts from the Ficus species had low antimicrobial effect at 25 and 50 mg mL-1 concentrations while a significant arrest of mycelia growth was observed at 75 and 100 mg mL-1 concentrations. The presence of alkaloids, flavonoids and cardiac glycosides in the leaves of these species may have conferred the antimicrobial properties on these species. Application of the fungal pathogens isolated on healthy tubers and the subsequent development of rots confirmed these organisms as the natural pathogens of this crop. The extracts from all the four Ficus species exerted significant antimicrobial effect on all the test organisms at 75 and 100 mg mL-1 concentrations and its application at these concentrations would help to minimise infection and spoilage during and after storage and improve farmers’ revenue.en_US
dc.identifier.citationO.A. Oyelana, E.U. Durugbo, O.D. Olukanni, E.A. Ayodele, Z.O. Aikulola and A.I. Adewole, 2011. Antimicrobial Activity of Ficus Leaf Extracts on Some Fungal and Bacterial Pathogens of Dioscorea rotundata from Southwest Nigeria. Journal of Biological Sciences, 11: 359-366.en_US
dc.identifier.urihttp://dspace.run.edu.ng:8080/jspui/handle/123456789/2750
dc.language.isoenen_US
dc.publisherJournal of Biological Sciences,en_US
dc.relation.ispartofseries11 (5):;359-366
dc.subjectDioscorea rotundataen_US
dc.subjectFicus speciesen_US
dc.subjectBio-controlen_US
dc.subjectAntimicrobialen_US
dc.titleAntimicrobial Activity of Ficus Leaf Extracts on some Fungal and Bacterial Pathogens of Discorea rotundata from Southwest Nigeriaen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
6. Oyelana et al.pdf
Size:
466.69 KB
Format:
Adobe Portable Document Format
Description:
Antimicrobial Activity of Ficus Leaf Extracts on some Fungal and Bacterial Pathogens of Discorea rotundata from Southwest Nigeria.
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Department of Biochemistry