cia e ▁ ▁B . ▁valid us ▁ ▁B . ▁vall ism ort is ▁ ▁B . ▁ved der i ▁ ▁B . ▁ve lez ensis ▁ ▁B . ▁v ietnam ensis ▁ ▁B . ▁v ire ti ▁ ▁B . ▁vul can i ▁ ▁B . ▁w ako ensis ▁ ▁B . ▁x iam en ensis ▁ ▁B . ▁x ia ox i ensis ▁ ▁B . ▁z han ji ang ensis ▁▁ ▁E colog ical ▁ ▁and ▁C lin ical ▁significance , ▁Sign s ▁and ▁Sym pt oms ▁Bac ill us ▁species ▁are ▁u bi quit ous ▁in ▁nature , ▁e . g . ▁in ▁soil . ▁They ▁can ▁occur ▁in ▁extreme ▁environments ▁such ▁as ▁high ▁p H ▁( B . ▁al cal oph ilus ), ▁high ▁temperature ▁( B . ▁therm oph ilus ), ▁and ▁high ▁salt ▁concentr ations ▁( B . ▁hal od ur ans ). ▁B . ▁th uring i ensis ▁produces ▁a ▁to x in ▁that ▁can ▁kill ▁insect s ▁and ▁thus ▁has ▁been ▁used ▁as ▁insect ic ide . ▁B . ▁si am ensis ▁has ▁ant im icro b ial ▁comp ounds ▁that ▁in hib it ▁plant ▁path og ens , ▁such ▁as ▁the ▁fung i ▁Rh izo ct onia ▁sol ani ▁and ▁Bot ry tis ▁cin erea , ▁and ▁they ▁promote ▁plant ▁growth ▁by ▁vol atile ▁em issions . ▁Some ▁species ▁of ▁Bac ill us ▁are ▁naturally ▁compet ent ▁for ▁DNA ▁u pt ake ▁by ▁transformation . ▁ ▁Two ▁Bac ill us ▁species ▁are ▁med