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Articles Related to bioactivity

Bioactivity of Plant Extracts Against Fusarium Oxysporum f. sp. Lycopersici Sacc.) Causing Wilt Disease of Tomato (Solanum Lycopersicum L) in the Southern Guinea Savannah, Nigeria

Wilt disease of tomato is caused by Fusarium oxysporum f. sp. lycopersici and it is an important disease which causes significant yield reduction in the crop throughout the world. A study was undertaken to isolate, identify and test the pathogenicity of F. oxysporum f. sp. Lycopersici on tomato; and to evaluate the bioactivity of Azadirachta indica leaf, Piper guineense seed and Zingiber officinale rhizome extracts as well as the synthetic fungicide, mancozeb at different concentrations and combinations for the management of F. oxysporum f. sp. lycopersici in vitro. Results revealed that the percentage frequency of the fungus isolated and identified was more on the roots (35.56 %) than the stems (26.67 %), fruits (20.00 %) and leaves (17.77 %). Results of the pathogenicity test showed more virulence in the roots than in other parts of the tomato plant. Extracts of the three plants and mancozeb proved effective in controlling the mycelial growth of the fungus either alone or when combined. Mancozeb consistently gave 100 % growth inhibition irrespective of the concentration used. Among the plant extracts applied alone at 40 g/L, Z. officinale (66.69 %) was the most effective followed by P. guineense (53.52 %) while A. indica was the least (36.99 %). The mycelial growth inhibition increased from 40 g/L to 120 g/L irrespective of the combination of the treatments used. A combination of mancozeb with any plant extract was more effective than a combination of the plant extracts. It is therefore, recommended that the plant extracts be applied either alone or in combination with other plant extracts or the fungicide to control F. oxysporum f. sp. lycopersici, increase tomato yield and reduce postharvest rots associated with the pathogen
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Perspectives and Potential Applications of Ruthenium-Based Nanocarriers for Cancer Therapy

Cancer is a highly heterogeneous disease characterised by continuous uncontrolled growth and expansion of abnormal cells. In general, in tumor cells the signalling pathways regulating cellular processes, as cell growth and division and cell to cellcommunication result strongly altered.
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Editorial Board Members Related to bioactivity

Muhammad Akram

Associate Professor
Department of Eastern Medicine, Directorate of Medical Sciences
Government College University Faisalabad
Pakistan

Rathnayake Mudiyanselage Dharmadasa

Senior Deputy Director
Industrial Technology Institute
Sriparakum Mawatha
Sri Lanka
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