Fig. 4
From: Studies of a rice sterile mutant sstl from the TRIM collection
TEM analysis of anther development in SSTL-F and sstl-s. a At vacuolated pollen stage (VP), when the tapetal cell was decomposed to generate orbicules in SSTL-F and d, g sstl-s. Bars = 2 μm. b At late pollen mitosis stage (LpM), when the tapetum was degraded, and the pollen wall of microspores integrated completely in SSTL-F and e, h sstl-s. Bars = 1 μm. c At mature pollen stage (Mp), when endothecium degenerated and microspores were in the plump round shape with puffy intine of SSTL-F and f, i sstl-s. Bars = 2 μm. Ba Bacular, DP defective pollen, E epidermis, En endothecium, In intine, MP mature pollen, Msp microspore, Ne nexine, Or orbicule, T tapetum, Te tectum