IN-VITRO INSECTICIDAL ACTIVITY OF CRUDE EXTRACTS OF STREPTOMYCES SP. AGAINST LARVAE OF SITOPHILUS ORYZAE
Journal Title: Journal of Drug Discovery and Therapeutics - Year 2013, Vol 1, Issue 8
Abstract
The present study was performed to evaluate the insecticidal potential of Actinomycetes isolated from the soils of the Dublarchar and Kochikhali, Bangladesh. The actinomycete isolates were identified by various parameters such as colony morphology, spore arrangement, staining, and biochemical reactions. Insecticidal activity of different concentrations of ethanolic extract of the isolates was determined against the second instar larvae of Sitophilus oryzae. The larvicidal effect, in terms of mortality of larvae, of the extracts was determined by counting the number of dead larvae after 24 hours. Ten actinomycete isolates were recovered from the soil sample and one was subjected to identify (Due to potent antibacterial activity) as the species of Streptomyces on the basis of microscopic, biochemical, and staining characteristics. The insecticidal potential of ethanolic extracts, in terms of larval mortality, was found to be dose dependent. The isolate showed a marked insecticidal activity. At a concentration of 24mg/ml, the isolate caused 100% mortality of the larvae. The lethal conc. 50 was found 3.16mg/ml. Isolation and characterization of active constituents from the ethanol extract possessing insecticidal potential are to be investigated.
Authors and Affiliations
Rishikesh*| Department of Pharmacy, University of Asia Pacific, Dhaka-1209, Drishti Rani Ghosh| Department of Pharmacy, University of Asia Pacific, Dhaka-1209, Md. Anwarul Haque| Department of Pharmacy, Rajshahi University, Rajshahi-6205, Md. Anwar Ul Islam| Department of Pharmacy, Rajshahi University, Rajshahi-6205, Mohammad Mahbubur Rahman| Department of Pharmacy, University of Asia Pacific, Dhaka-1209, Mst Rikta Banu| Department of Pharmacy, Rajshahi University, Rajshahi-6205
Keywords
Related Articles
- EP ID EP1437
- DOI -
- Views 471
- Downloads 30
REVIEW ON VETIVERIA ZIZANIOIDES: A MEDICINAL HERB.
About 80% of the world’s population uses folk medicine in traditional medicine states World Health Organisation. India is one of the richest countries in the world with regard to diversity of medicinal plants. Herbal me...
Survey on salt iodine content at household level of Chidambaram, Cuddalore district, Tamilnadu
Around 43% of the population does not consume adequate amounts of iodine which make them vulnerable to physical and mental disorder. UNICEF estimates that less than 20% of households in the developing world were using io...
OCCURRENCE OF OVARIAN TUMORS IN KARNATAKA
Ovary is relatively resistant to most diseases except to neoplasms. Ovarian cancer is the fourth leading cause of death in women. The present study included the clinicopathological evaluation of 180 cases of ovarian neop...
Development of proniosomes gel as a drug carrier for transdermal delivery of acyclovir
Non-ionic surfactant vesicles of acyclovir, an antiviral, were prepared by coacervation phase separation method. The prepared systems were characterised for encapsulation efficiency, shape, size and in vitro drug release...
A REVIEW ON IMMEDIATE RELEASE DRUG DELIVERY SYSTEM BY USING DESIGN OF EXPERIMENT
Tablet is the most popular among all dosage forms existing today because of its convenience of self administration, compactness and easy manufacturing; Sometimes immediate onset of action is required than conventional t...