The Antifungal Activity Of Aqueous And Ethanol Extracts Of Jatropha Curcas L. Against Aspergillus Niger (Van Tieghem) That Cause Black Mould Rot Of Onion Bulbs In Sokoto, Nigeria

Authors

  • LU Bashir Department of Biological Sciences, Yobe State University, Damaturu,
  • IB Gashua Department of Science Laboratory Technology, Federal Polytechnic Damaturu,
  • MA Isa Department of Microbiology, University of Maiduguri,
  • A Ali Department of Biological Sciences, Yobe State University, Damaturu,

DOI:

https://doi.org/10.3126/ije.v2i1.9211

Keywords:

Aspergillus niger, Antifungal, Jatropha curcas, In vitro, In vivo

Abstract

The antifungal activity of aqueous and ethanol extracts obtained from seed and leaf of Jatropha curcas were investigated using agar incorporation method in vitro against Aspergillus niger, a microbe known to be resistant to some chemical agents. Pathogenicity test revealed that A. niger was the pathogenic fungus that cause black mould rot of onion bulbs. The growth of A. niger was markedly suppressed by aqueous and ethanol extracts of leaf and seed, 65.7 and 57.0% at 160 mg/ml. The extracts at low concentration did not show considerable activity against the fungus except leaf ethanol extract 53.3% at 40 mg/ml.The in vivo study showed that aqueous extracts of seed and leaf reduced rot development, 59.4 and 54.4 % in onion bulbs. Highest rot inhibition 66.3 was obtained at 160 mg/ml seed extract.The result of the study suggest the potentials of J. curcas extracts as fungicidal agent that could be useful in management of black mould rot of onion bulbs caused by Aspergillus niger.

International Journal of Environment, Volume-2, Issue-1, Sep-Nov 2013, Pages 83-90

DOI: http://dx.doi.org/10.3126/ije.v2i1.9211

Downloads

Download data is not yet available.
Abstract
1231
PDF
1017

Downloads

Published

2013-12-02

How to Cite

Bashir, L., Gashua, I., Isa, M., & Ali, A. (2013). The Antifungal Activity Of Aqueous And Ethanol Extracts Of Jatropha Curcas L. Against Aspergillus Niger (Van Tieghem) That Cause Black Mould Rot Of Onion Bulbs In Sokoto, Nigeria. International Journal of Environment, 2(1), 83–90. https://doi.org/10.3126/ije.v2i1.9211

Issue

Vol. 2 No. 1 (2013)

Section

Research Papers

License

The author(s) acknowledge that the manuscript submitted is his/her/their own original work; all authors participated in the work in a substantive way and are prepared to take public responsibility for the work; all authors have seen and approved the manuscript as submitted;  the manuscript has not been published and is not being submitted or considered for publication elsewhere; the text, illustrations, and any other materials included in the manuscript do not infringe(plagiarism) upon any existing copyright or other rights of anyone.

Notwithstanding the above, the Contributor(s) or, if applicable the Contributor’s Employer, retain(s) all proprietary rights other than copyright, such as Patent rights; to use, free of charge, all parts of this article for the author’s future works in books, lectures, classroom teaching or oral presentations; the right to reproduce the article for their own purposes provided the copies are not offered for sale.

The copyright to the contribution identified is transferred to IJE.