Antiviral activities of marine actinomycetes from lagos lagoon se | 6709
Journal of Antivirals & Antiretrovirals

Journal of Antivirals & Antiretrovirals
Open Access

ISSN: 1948-5964

Antiviral activities of marine actinomycetes from lagos lagoon sediments

2nd International Conference on Retroviruses and Novel Drugs

June 30-July 01, 2016 Cape Town, South Africa

Adeleye Isaac Adeyemi, Davies-Bolorunduro Olabisi Flora and Wang Peng George

Department of Microbiology, University of Lagos, Akoka, Lagos State, Nigeria
Department of Chemistry, Georgia State University, Atlanta, Georgia State, U.S.A.

Scientific Tracks Abstracts: J Antivir Antiretrovir

Abstract :

Influenza A virus infections are of medical concern because of high mutation of their genes, viral transmission and increased resistance to available drugs. Actinomycetes have been recognized over decades for their ability to produce bioactive metabolites of therapeutic importance. The search for this group of bacteria have concentrated on the terrestrial environment and marine environment have been overlooked. It is therefore imperative to screen under-explored environments such as Lagos Lagoon, for actinomycetes with ability to produce novel antiviral drugs that will help alleviate drug resistance. Actinomycetes were isolated from sediment samples from different sites of the Lagos Lagoon, by spread plate method using starch casein, Kuster��?s, Gauze 1 and 2, marine and actinomycete isolation agar. Plates were incubated at 29 oC for 1 to 5weeks. Identification of the isolates was done using API kits and through amplification of 16S r RNA gene and sequencing using actinobacterialspecific primers. Extraction of secondary metabolites was carried out using equal volume ethyl acetate (1:1). Antiviral activity of the crude extracts on X-31 (H3N2) Influenza virus cultivated in MDCK-2 cells using 12-well plates, were also determined using plaque reduction assay. Cells were grown at 37 oC, in 12-well plates for 2 days. Streptomyces albusULK2 and Streptomyces avermitilisULK3 showed significant antiviral activity with extracts from the strain Streptomyces albusULK2 having activity at concentration as low as 0.5mg/ml. This study revealed for the first time, actinomycetes isolated from Lagos lagoon sediments having antiviral activities. Actinomycetes from underexplored Lagos lagoon could be potential source of novel bioactive compounds of therapeutic values.

Biography :

Adeleye completed his PhD in 1990 from University of Ibadan, Nigeria and has been lecturing in Universities in Nigeria. He is currently the Head of Department of Microbiology, University of Lagos. He has published more than 50 papers in reputed journals and has been serving as an editorial board member of repute in a few journals.