Evaluation of antimicrobial compound involved in Antagonism Isolated from Rhizospheric bacteria from Soybean

Abstract

Soybean [Glycine max. (L.) Merril] is an important oilseed crop produced in India. Madhya Pradesh is the largest soybean producer in India. About 40% of the total oilseeds and 25% of edible oil production in India is endowed to soybean production. Its production is affected by various abiotic and biotic factors such as pathogens, weeds and insect pests leading to economic losses. newlineSoil-borne diseases are among the major diseases globally resulting in heavy losses. Amongst the various soil-borne fungal phytopathogens inciting disease in soybean, Macrophomina phaseolina is the most devastating fungus. Macrophomina phaseolina (Tassi) Goid is a polyphagous fungus causing various diseases in about 500 plants. Charcoal rot caused by M. phaseolina is a disease of major concern in soybean affecting its production worldwide. It is ranked among the top five soybean diseases leading to 30-50% yield loss in soybean. newlineHigher yield losses due to charcoal rot needs to be controlled for sustainable crop production. Chemical control is not eco-friendly, causes pollution, and impose adverse effects on health of humans and animals, and also create ecological imbalances. Integrated pest management (IPM) is an environmental friendly approach to control phytopathogens and improve crop production. IPM involves the use of various control measures together or in combination to control plant diseases. Biological control is the most important component of IPM with long term effectiveness for controlling phytopathogens. It recruits beneficial microflora to protect plants from diseases and promotes plant growth. It is safe environmental friendly and cost effective approach with long term sustainability to combat plant diseases. newlineRhizosphere of soil is a rich niche of beneficial bacteria that promote plant growth directly or indirectly; also known as PGPR. These rhizobacteria colonize the rhizosphere and exert their beneficial effects on growth and development of plants. PGPR suppress plant pathogens and reduce disease incid