Fig. 5. Visualization of interphase chromatin in Col and gl3-sst epidermal cell nuclei. Confocal microscopy of Col and gl3-sst plants containing a chromosomally integrated Lac operator array and a constitutively active 35S::GFP-Lac I transgene. (A,B) Trichome nuclei from Col and gl3-sst plants, respectively. (C,D) Guard and neighbor cell nuclei on leaf epidermis of Col and gl3-sst plants, respectively. The pairs of images shown in A and B, and in C and D are maximum projections of confocal images captured at the same magnifications and laser intensities.