Fine structure of the Malpighian tubules in the housefly, Musca domestica |
| |
Authors: | R.S. Sohal |
| |
Affiliation: | Department of Biology, Southern Methodist University, Dallas, Texas 75275 U.S.A. |
| |
Abstract: | The epithelium of the Malpighian tubules in the housefly is comprised of four distinct cellular types. Type I cells are characterized by the presence of intimate associations between infoldings of basal plasma membrane and mitochondria. On the luminal surface, cytoplasm is extended into microvilli which contain mitochondria. Membrane-bound vacuoles in the cytoplasm seem to progressively accumulate granular material. Type II cells have dilated canaliculi. Microvilli lack mitochondria. The Type III cell has not been reported previously in Malpighian tubules. It has very well-developed granular endoplasmic reticulum which contains intracisternal bundles of tubules. Cytoplasm contains numerous electron dense bodies. Type IV cells occur in the common duct region of the Malpighian tubules. Mitochondria do not extend into the microvilli. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|