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Fig. 4 | Parasites & Vectors

Fig. 4

From: Timing and original features of flagellum assembly in trypanosomes during development in the tsetse fly

Fig. 4

Transition forms where the nucleus migrates towards the posterior region of the body. ad Early transition form. eg Late transition form. a, e Slice view of trypanosomes showing the nucleus, the kinetoplast, the new flagellum and the mature flagellum. a The parasite possesses a large kinetoplast and the new flagellum is not in the plane of the image. b Lateral view of the internal organization of a partially reconstructed trypanosome showing that nucleus migration reached the same plane as the kinetoplast. c, f 3D model of an early transition form (c) showing nucleus deformation next to the mature flagellum and of a late transition form (f) where the deformation is seen in the region close to the kinetoplast. d, g Top view of partially reconstructed trypanosomes. d The new flagellum is located to the left side in relation to the mature flagellum. g The new flagellum is found at the left side of the posterior-anterior axis of the body. Abbreviations: NF, new flagellum; MF, mature flagellum; K, kinetoplast; N, nucleus. Notes: White and black arrowheads indicate the new and the mature basal bodies, respectively. Anterior region and posterior region of the cell are indicated on panel a and e. Scale-bars: 1 µm

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