Ciliate - an overview | ScienceDirect Topics
Balantidium coli is a large ciliate in the phylum Ciliophora. Trophozoites are ovoid, 30 to 150 by 150 by 25 pm, and with a subterminal tubular mouth. They are covered with cilia and with these they move rapidly. Cysts are spherical to ovoid, 40 to 50 μm in diameter, with many starch-containing food vacuoles.
Ciliates - an overview | ScienceDirect Topics
Ciliates of the family Strobilidiidae Kahl in Doflein & Reichenow, 1929 are mostly small to medium-sized, spheroid to conoid in shape, and are characterized by the possession of somatic kineties arranged in spiral or longitudinal rows and cortical flaps covering the bases of the somatic cilia. Morphogenesis has been documented for fewer than ...
Ciliates - an overview | ScienceDirect Topics
Ciliates have a unique genetic system that is, despite their merits as model organisms, relatively poorly understood. They exhibit nuclear dimorphism (see Glossary): each cell harbors two different kinds of nuclei. The cell’s phenotype is determined by the expression of a somatic nucleus (macronucleus).
Ciliate - an overview | ScienceDirect Topics
Ciliates (phylum Ciliophora, kingdom Chromista) are unicellular organisms that utilize cilia for locomotion and complex oral ciliature for feeding; possess somatic, polyploid macronuclei, and generative, diploid micronuclei; reproduce sexually by conjugation and asexually by binary fission.
Ciliophora - an overview | ScienceDirect Topics
Ciliophora (Ciliates) Jules J. Berman, in Taxonomic Guide to Infectious Diseases, 2012. Members of Class Ciliophora have a peculiar system of two nuclei: a small nucleus that contains the full genome, and a larger nucleus that plays the active role in cellular regulation. The larger nucleus is regenerated from the smaller nucleus through a ...
Functional diversity of aquatic ciliates
2017年10月1日 · Abstract. This paper first reviews the concept of functional diversity in general terms and then applies it to free-living aquatic ciliates. Ciliates are extremely versatile organisms and display an enormous functional diversity as key elements of pelagic food webs, acting as predators of bacteria, algae, other protists and even some metazoans.
Ciliate - an overview | ScienceDirect Topics
The ciliates form an extremely large group and are the most specialized and complicated of the protozoans. They are characterized by the arrangement of cilia in an ordered fashion over the surface of the cell, and the presence of two kinds of nuclei, a macronucleus and a micronucleus. They also divide by transverse fission.
Ciliates — Protists with complex morphologies and ambiguous …
2015年9月1日 · Ciliates (Alveolata, Ciliophora) are morphologically extremely diverse in comparison with most other protists (Dunthorn and Katz, 2008, Lynn, 2008). Species and higher taxa are primarily distinguished by variations in cell shape and size, the numbers and patterns of oral and somatic cilia, and the ultrastructure of the fibers associated with ...
Chapter 23 - Symbiotic microbes from ciliates - ScienceDirect
2023年1月1日 · Hydrogenosomes are an adaptive mechanism for anaerobic ciliates in the anoxic environment and thought to have a unique symbiotic origin from mitochondria-derived organelles (Hackstein et al., 2001). Clostridium species are strict anaerobes that consume short-chain fatty acids and sugars (Stieb and Schink, 1985).
Ciliates (Alveolata, Ciliophora) as bioindicators of environmental ...
2021年5月1日 · These ciliates are quite abundant in diverse freshwater habitats, especially in plankton (as they can consume up to 100% of the standing stock of nanoplankton every day) (Thorp and Covich, 2010, Grattepanche et al., 2019). Also, they can be easily morphologically identified due to their prominent adoral zone of membranelles.