Microtubules in hindgut cells of postmarsupial mancae 1 week after their release from the marsupium A overlay of epifluorescence and DIC images obtained on paraffin section showing microtubules in green (AlexaFluor 488) and cell nuclei in blue (DAPI). Image depicts dorsal hindgut epithelium in the anterior chamber B overlay of epifluorescence and DIC images obtained on paraffin section showing microtubules in green (AlexaFluor 488) and cell nuclei in blue (DAPI). Image depicts hindgut epithelium of the lateral hindgut wall in the anterior chamber C overlay of epifluorescence and DIC images obtained on paraffin section showing microtubules in green (AlexaFluor 488) and cell nuclei in blue (DAPI). Image depicts hindgut epithelium at the transition between the anterior chamber and the papillate region D overlay of epifluorescence and DIC images obtained on paraffin section showing microtubules in green (AlexaFluor 488) and cell nuclei in blue (DAPI). Image depicts hindgut epithelium in the anterior part of the papillate region E overlay of epifluorescence and DIC images obtained on paraffin section showing microtubules in green (AlexaFluor 488) and cell nuclei in blue (DAPI). Image depicts hindgut epithelium in the posterior part of the papillate region F electron micrograph of equivalent area as denoted by frame F in image C. Arrow points to a large bundle of microtubules near the lateral plasma membrane which is indicated by arrowhead G electron micrograph of equivalent area as denoted by frame G in image D. Arrowhead points to septate junctions. Arrow points to cross-sectioned microtubules. Abbreviations: CUT – cuticle; HE – hindgut epithelium; HL – hindgut lumen; M – muscles; T – typhlosole; TC – typhlosole channels.