Chemical composition and antibacterial activity of Methanolic extract of Artemisia annua L. against plant pathogenic bacteria

Natural products from plants have great potential as pesticides sources for controlling Bacterial and fungal diseases of plants. In this study antimicrobial activity of the aerial parts extract of Artemisia annua L. was studied in vitro against five plant pathogenic bacteria, Including: Rathayibacter tritici, Pesudomonas syringae , pv. Syringae, Erwinia amylovora, Xanthomonas campestris and Escherichia coli. The chemical constitutions of this extract were analyzed by GC/MS. GC/MS analysis of the extract lead to identification of Fifty-seven components, representing 89.89% of the extract; Arteannuic acid (32.39%), Eudesma-4 (14%), 11- diene (6.36%), Arteannuin b (5.02%), Artemesia ketone (4.85%), 2-Methoxy-4vinylphenol (Phenol) (4.10%), Germacren-D (3.61%), Caryophyllene (3.16%), Camphor (2.40%) and Caryophyllene oxide (1.11%) being the main components. The extract composition and the observed antibacterial properties show that the aerial parts of Artemisia annua L. can be used as potential antibacterial agents for the control of bacterial diseases in plants.

Chemical composition and antibacterial activity of Methanolic extract of Artemisia annua L. against plant pathogenic bacteria Keywords:

Artemisia annua L. , methanolic extract , antibacterial activity , chemical composition , GC/MS