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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: J Struct Biol. 2009 Mar 6;166(3):316–328. doi: 10.1016/j.jsb.2009.02.014

Figure 6.

Figure 6

Association of the forming valve with the girdle band region. Higher magnification images of sections from the same cell in Fig. 5. Section number of each image is denoted, individual sections were separated by 20 nm. Section 34 shows the epitheca (e), and hypotheca (h) girdle bands encircling the cell. Section 40 show an additional structure (as) associated with the hypotheca girdle band. Section 44 shows more complicated additional structures (as) and a discontinuity (dc) in structure. In section 63 valve ribs are visible (arrows) and in section 68 connections between the ribs are present (brackets). Circular structures in section 75 may be freshly forming rimoportulae.