The fine structure of the hypertrophont of the parasitic apostome Synophrya (Ciliophora,Apostomatida) |
| |
| Authors: | Stephen C. Landers |
| |
| Affiliation: | 1. Parasitology Unit, University of Hohenheim, Emil-Wolff-Straße 34, 70593 Stuttgart, Germany;2. School of Animal and Veterinary Sciences, Charles Sturt University, Locked Bag 588, Wagga Wagga, NSW 2678, Australia;1. Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 1102 South Goodwin Avenue, Urbana, IL 61801, USA;2. The Nature Conservancy, 101 E. Cesar E. Chavez Ave., Lansing, MI 48906, USA;3. The Nature Conservancy, c/o Notre Dame Environmental Change Initiative, Unit 117, 1400 East Angela Blvd, South Bend, IN 46617, USA;4. Department of Biological Sciences, University of Notre Dame, 294A Galvin, Notre Dame, IN 46556, USA |
| |
| Abstract: | The hypertrophont stage of the parasitic apostome ciliate Synophrya was studied by light microscopy and transmission electron microscopy. This invasive stage of the ciliate was found within the gill lamellae and gill raphes of the longspine swimming crab Portunus spinicarpus. The ciliates elicited a melanized host reaction that walled off the parasite from the host. Additionally the ciliate produced a cyst wall of ～0.16-2.0 μm in thickness that further isolated the parasite. A mouth was not observed, as the internal stage of this ciliate takes in material via endocytosis across the entire surface. The outer surface was irregular, with folds, membrane pillows, and vesicles connected to the outer membrane. The hypertrophont had a sparce ciliature, with well developed kinetodesmal fibers connecting the kinetosomes. Within the cytoplasm the cell had numerous vacuoles, lipid droplets, and large plaquettes of material. The massive reticulate macronucleus had globular and elongated chromatin bodies, and was the most distinctive organelle within the cell. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
