sodium sulphite and sodium benzoate induce in vicia faba root meristems : ( 1 ) dose-dependent reduction in mitotic figures , ( 2 ) intact and severed anaphase bridges , ( 3 ) premature chromosome condensation heading to pycnotic nuclei , and ( 4 ) chromatin erosion in interphase nuclei .
C0007610
nuclei
C0008546
chromatin