In Vitro Evaluation of Antimicrobial Activity of Alimentary Canal Extracts from the Red Palm Weevil, Rhynchophorus ferrugineus Olivier LarvaeReport as inadecuate




In Vitro Evaluation of Antimicrobial Activity of Alimentary Canal Extracts from the Red Palm Weevil, Rhynchophorus ferrugineus Olivier Larvae - Download this document for free, or read online. Document in PDF available to download.

BioMed Research International - Volume 2017 2017, Article ID 8564601, 6 pages - https:-doi.org-10.1155-2017-8564601

Research Article

Deanship of Scientific Research, King Abdulaziz University, P.O. Box 80230, Jeddah 21589, Saudi Arabia

Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt

Faculty of Applied Medical Sciences, Department of Medical Laboratory Technology, King Abdulaziz University, P.O. Box 80402, Jeddah 21589, Saudi Arabia

Correspondence should be addressed to Gamal H. Sewify

Received 25 January 2017; Revised 9 April 2017; Accepted 23 April 2017; Published 22 May 2017

Academic Editor: Yu-Chang Tyan

Copyright © 2017 Gamal H. Sewify et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The invasive red palm weevil, Rhynchophorus ferrugineus Olivier Coleoptera: Curculionidae, is considered one of the world’s most devastating insect pests to palm trees. It was observed that larvae of this pest are able to inhibit microbial growth on the rearing media when they start feeding and this observation has led us to study the effect of red palm weevils on various microbial species. The antimicrobial effect of extracts from different parts of the alimentary canal on Gram positive bacteria Enterococcus faecalis and Staphylococcus aureus, Gram negative bacteria Escherichia coli and Klebsiella spp., Candida albicans, and Penicillium sp. was tested using the agar well diffusion method. All extracts inhibited the tested microbial species. Foregut extracts had the greatest zones of growth inhibition. Enterococcus faecalis, Staphylococcus aureus, and Penicillium sp. were significantly sensitive to the extracts and had the largest growth inhibition zones. It is concluded that the gut extracts contain potent antimicrobial activity and may provide a new source of antimicrobial peptides.





Author: Gamal H. Sewify, Hanan M. Hamada, and Hani A. Alhadrami

Source: https://www.hindawi.com/



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