Author(s):

Andhare Aishwarya, Dargad Jaiprakash, Shinde Ravindra and Deshmukh Amol

Abstract: Xanthomonas axonopodis pv. punicae causes Bacterial blight disease in Pomegranate. Complete range of symptoms of bacterial blight caused by Xanthomonas axonopodis pv. punicae appear on various pomegranate plant parts expect roots. The present investigation was initiated to find a suitable alternative to synthetic antibiotics for the management of plant diseases caused by bacteria. The study was aimed to use wild plant species viz., Abutilon indicum, Prosopis juliflora and Acacia arabica as Antibacterial agent against Xanthomonas axonopodis pv. Punicae. Aqueous extracts of Abutilon indicum, Prosopis juliflora and Acacia arabica plants has Antibacterial activity against Xanthomonas axonopodis pv. Punicae. The antibacterial activity was tested by well diffusion assay, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The maximum activity recorded in P. juliflora (MIC = 1.03 mg ml^-1 and MBC = 0.15 mg ml^-1) and A. arabica (MIC = 1.00372 mg ml^-1 and MBC = 2.58 mg ml^-1) against X. axonopodis pv. Punicae, while the lowest activity was recorded by A.indicum (MIC = 0.619 mg ml-1 and MBC = 0.923 mg ml^-1). Highest ZOI was shown by P.juliflora while lowest ZOI was shown by A.indicum the results infer that the extracts of Prosopis juliflora and Acacia arabica are highly sensitive against the Xanthomonas axonopodis pv. punicae. Plant extracts exhibited antibacterial activity with a potential to be used in the management of many plant diseases as an alternative to chemical antibiotics. Further phytochemical analysis is required to identify the bioactive compounds responsible for antibacterial activity.

Pages: 2069-2073  |  1223 Views  443 Downloads

Download (672KB)