clavibacter clavibacter clavibacter is a genus of aerobic gram-positive bacteria. clavibacter symptoms of clavibacter michiganensis on tomato. scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: microbacteriaceae genus: clavibacterdavis et al. 1984 type species clavibacter michiganensiscorrig. (smith 1910) davis et al. 1984 species c. capsici (oh et al. 2016) li et al. 2018 c. insidiosus (mcculloch 1925) li et al. 2018 c. michiganensis corrig. (smith 1910) davis et al. 1984 c. nebraskensis (vidaver and mandel 1974) li et al. 2018 c. sepedonicus (spieckermann and kotthoff 1914) li et al. 2018 c. tessellarius (carlson and vidaver 1982) li et al. 2018 c. zhangzhiyongii tian et al. 2021