ISOLATION AND CHARACTERIZATION OF BACTERIAL SPECIES ASSOCIATED WITH WEED PLANTS

During the current investigation the presence of different bacterial strains were identified from four weeds viz. Parthenium hysterophorus (whitetop) Convolvulus arvensis (lehli) Euphorbia esculenta (dhodak) and Chenopodium album (bathu). Weeds were collected from diiferent areas of Punjab university and main canal road sides as these are local and dominant agricultural weeds of Pakistan. Present study reported information concerning the isolation and identification of bacteria on the morphological and biochemical analysis. Thirteen species of bacteria were isolated in this study belonging to eight different family viz. Burkholderiaceae Bacillaceae Peptococcaceae Comamonadaceae Enterobacteriaceae Corynebacteriaceae Rhodospirillaceae and Moraxellaceae. Identification was further confirmed by their enzymatic activity and carbohydrates utilization. Although E. esculenta and P. hysterophorus were the weeds found to be carrying maximum percentage of bacterial species. Cupriavidus sp. Bacillus sp. Peptococcus sp. Acidovorax facilis Klebsiella sp. Yersinia ruckeri Corynebacterium minutissimum Bacillus farraginis Enterobacter agglomerans Azospirillum lipoferum Acinetobacter lwoffii Cedecea davisae and Curtobacterium albidum were the identified bacterial species.