RALSTONIA MANNITOLILYTICA. Ralstonia mannitolilytica colorized SEM, x 6 740, the line represents 5 microns. Ralstonia mannitolilytica is Gram_positive bacillus, not sporulated, strict aerobe, saprophyte, living in the environment water, soil and plants. Not pathogenic in itself, this bacterium can be at the origin of hospital_acquired infections, meningites and respiratory infections in immunocompromised patients opportunistic disease. Ralstonia mannitolilytica Ralstonia Burkholderiaceae Burk