[Development of the Aperture, Especially of the Endexine, of Pollen Grains of Fuchsia]
(1992) Bulletin de la Société Royale de Botanique de Belgique — Vol. 125, n° 1, p. 80-88 (1992)
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- Abstract
- The deposition of endexine in the mesocolpium of immature pollen grains is observed around microchannels. The dimension and electron density of these microchannels are similar to those of the plasma membrane. In the mature state of the pollen grains, they are less visible in the homogeneous endexine. The microchannels extend from the mesocolpium to the endo-aperture where they form an irregular network. Units of endexine of variable sizes, grow around the microchannels. Endoapertural endexine may be divided into three areas. In the region near the ectoaperture, many microchannels can be seen. The endexine units here are numerous and high. In the middle area, the microchannels and endexine units are more widely spaced. In the inside area near the cytoplasm, the more developed rods of the endexine are seen. Their sizes are irregular and each rods has a microchannel. Many fusions of the endexine units give a more homogeneous structure to these rods.
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Horvat, F. (1992). [Development of the Aperture, Especially of the Endexine, of Pollen Grains of Fuchsia]. Bulletin de la Société Royale de Botanique de Belgique, 125(1), 80-88. https://hdl.handle.net/2078.5/147590 (Original work published 1992)