Immunofluorescence analysis of vegetatively
growing, starved, and exconjugant cells. Vegetative growing cells
(a–c), starved cells (2 d without feeding, d–f), and exconjugant
cells during polytene chromosome stage (g–i) and at a later stage
(k–m) were fixed and incubated with the Pdd1p antiserum (secondary
anti-rabbit Cy2-labeled antibody), and the DNA was stained with DAPI.
(a, d, g, k) Phase-contrast microscopy, (b, e, h, l) DAPI stain (UV
light), (c, f, i, m) anti-Pdd1p stain (blue light). Ma, macronucleus;
MaA, macronuclear anlagen; mi, micronucleus. The replication band is
labeled by an arrow. Bar, 10 μm.