Fig 6. TEM Micrographs of wild-type (WT, NZ3900) and pbp2b mutant cells of L. lactis).
(i and ii), pbp2b mutant cells with mis-oriented and asymmetrical septa; (iii), small chains of round cells; (iv), aggregate of unseparated cells; (v), cell with double septa. Arrows indicate PG outgrowths (piecrust) at the future septation site in WT. Scale bars, 500 nm.