coli may have faster or slower doubling times: some strains of Mycobacterium tuberculosis may have doubling times of nearly 100 hours. This time period can, therefore, be referred to as the doubling time. Because the new cells will, in turn, undergo binary fission on their own, the time binary fission requires is also the time the bacterial culture requires to double in the number of cells it contains. coli, cells typically divide about every 20 minutes at 37 ☌. Speed of FtsZ-dependent Fission īinary fission is generally rapid though its speed varies between species. Little is known about how bacteria that naturally don't grow a cell wall divide, but it is thought to resemble the L-form's budding-like division process of extrusion and separation. Studies of bacteria made to not produce a cell wall, called L-form bacteria, shows that FtsZ requires a cell wall to work.
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