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The genus Xanthomonas is significant due to its phytopathogenic diversity and contrasting phenotypic uniformity. Appropriate information on classification and nomenclature of genus Xanthomonas is essential to ensure effective disease management. In this research work isolates were distinguished through enzyme production potential and by using PCR techniques i.e. RAPD and ISSR. Genetic profile of pathogenic and non pathogenic isolates was checked in order to have a complete picture attributed generally to geographical distribution and or pathogenecity of various Xanthomonas species/ pathovars....

Parthenium (Parthenium hysterophorus L.), is an aggressive weed it is native to the subtropics of North and South America but now has invaded other continents like Asia, Australia and Africa during the last few decades and is spreading alarmingly. it is the need of time to evaluate this rag weed and to take some solid steps to control it in environmentally and ecologically save ways. this work will be a good contribution towards it distribution evaluation and biological management.

Biosorption is being demonstrated as a useful alternative to conventional systems for the removal of toxic metals from industrial effluents. Metal affinity to the biomass can be increase by pre treating the biomass with different chemicals. Current study was deigned to assess the Ni(II) and CCu(II) removal capability of two microfungi viz. Aspergillus niger and Rhizopus arrhizus. Biomass of both fungal species was pretreated with alkalies, acids and detergents. For the successful application of biosorption crucial parameters like influence of initial metal ion concentration and...