▁well ▁known ▁in ▁the ▁food ▁indust ries ▁as ▁troubles ome ▁spo il age ▁organ isms . ▁▁ ▁U bi quit ous ▁in ▁nature , ▁Bac ill us ▁includes ▁both ▁free - l iving ▁( non par as it ic ) ▁species , ▁and ▁two ▁par as it ic ▁path ogen ic ▁species . ▁These ▁two ▁Bac ill us ▁species ▁are ▁med ically ▁significant : ▁B . ▁anth rac is ▁causes ▁anth ra x ; ▁and ▁B . ▁c ere us ▁causes ▁food ▁poison ing . ▁ ▁Many ▁species ▁of ▁Bac ill us ▁can ▁produce ▁cop ious ▁amounts ▁of ▁en zym es , ▁which ▁are ▁used ▁in ▁various ▁indust ries , ▁such ▁as ▁in ▁the ▁production ▁of ▁alpha ▁am yl ase ▁used ▁in ▁st arch ▁hydro ly s is ▁and ▁the ▁prote ase ▁sub til is in ▁used ▁in ▁d eter g ents . ▁B . ▁sub til is ▁ ▁is ▁a ▁valuable ▁model ▁for ▁b acter ial ▁research . ▁ ▁Some ▁Bac ill us ▁species ▁can ▁synth es ize ▁and ▁se crete ▁li po pe pt ides , ▁in ▁particular ▁sur fact ins ▁and ▁my cos ub til ins . ▁ ▁Life ▁Cy cle ▁ ▁Bac ill us ▁has ▁a ▁life ▁cycle ▁of ▁sp ore ▁forming . ▁It ▁ent ails ▁ 3 ▁different ▁processes . ▁Veg et ative ▁growth , ▁Sp or ulation , ▁and ▁Germ ination . ▁ ▁Veg et ative ▁G row th ▁Veg et ative ▁growth ▁is ▁character ized ▁by ▁binary ▁symmetric ▁f ission ▁cell ▁growth ▁that ▁occurs ▁when ▁nut