Screening of endophytic bacteria of tobacco, determination of biocontrol potential and preliminary study on the principle of selenium production by Bacillus upland
In this study, Bacillus altitudinis (YC11), screened from endophytic bacteria of tobacco, grew normally in modified LB liquid medium with higher concentration of sodium selenite and produced red nano-selenium particles. Sodium selenite was reduced by YC11 to prepare nano-selenium. The reduction rate of sodium selenite, the yield of nano-selenium and the morphology of nano-selenium were studied, which provided theoretical basis for screening suitable Bacillus probiotics to convert inorganic selenium to prepare nano-selenium and beneficial and safe selenium sources.