In this study, we optimized the fermentation medium for spore production of Paenibacillus polymyxa IN937a. Seven factors including molasses, glucose, magnesium sulfate, potassium pyrophosphate, yeast extract, zinc and ammonium sulfate are selected as basis screening affecting P. IN937a by Plackett-Burman experiment. Based on analysis matrix, result showed that were three main impact (P < 0.0...

Rhizobia are soil bacteria that form nodules on legumes and fix atmospheric nitrogen, reducing the need for chemical fertilisers. In most studies rhizobia described as alpha-proteobacteria have been studied extensively several decades. However, in recent years an increasing number of present beta- gamma-proteobacteria strains potential rhizobia-like bacteria. this study we identify isolated fro...