Article info.

ABSTRACT

Received 26 Sep 2016
Revised 27 Nov 2016

Accepted 31 Oct 2017

Fourteen samples of Ageratum conyzoides cultivated at different places in the Mekong Delta were collected and used for analyzing genetic diversity employing Random Amplified Polymorphic DNA and Inter Simple Sequence Repeat markers and testing the antibacterial susceptibilities expressed as minimum inhibitory concentrations (MIC) of eight selected gram positive and gram negative strains including Staphylococcus aureus, Streptococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Salmonella spp., Aeromonas hydrophila, Edwardsiella ictaluri and Edwardsiella tarda. The results showed that Ageratum conyzoides had DNA genetic diversity and were divided into 3 groups. All of them had good antibacterial activities against tested bacteria (128 µg/ml ≤ MIC ≤ 4096 µg/ml), especially against Edwardsiella ictaluri and Edwardsiella tarda (128 µg/ml ≤ MIC ≤ 512 µg/ml) and Staphylococcus aureus (512 µg/ml ≤ MIC ≤ 1024 µg/ml).

Keywords

Ageratum conyzoides, antibacterial activity, genetic diversity

Cited as: Dieu, H.K. and Ni, N.T.H., 2017. The genetic diversity and the antibacterial activity of Ageratum conyzoides Linn. Can Tho University Journal of Science. 7: 45-50.