Related Experiment Video
Updated: May 23, 2026

Mating and Tetrad Separation of Chlamydomonas reinhardtii for Genetic Analysis
Published on: August 12, 2009
The life and times of Tetrahymena
1Department of Zoology, University of British Columbia, 6270 University Blvd., Vancouver, BC, Canada V6T 1Z4.
Abstract:
The genus Tetrahymena is defined on the basis of a four-part oral structure composed of an undulating membrane and three membranelles. It is a monophyletic genus with 41 named species and numerous unnamed species, many of which are morphologically indistinguishable. Nuclear small subunit rRNA and mitochondrial cytochrome c oxidase subunit 1 sequences indicate two major clades, a "borealis" clade of less closely related species and an "australis" clade of more closely related species that correlate to differences in mating-type determination and frequency of amicronucleates. Members of both clades show convergence for histophagy (primarily facultative), macrostome transformation, and (rare) cyst formation. Life cycle parameters of species are presented and problematic species discussed.
More Related Videos
10:51High-Throughput Robotically Assisted Isolation of Temperature-sensitive Lethal Mutants in Chlamydomonas reinhardtii
Published on: December 5, 2016
14:38Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
Published on: April 20, 2012
Related Concept Videos
Hyperthermophilic Bacteria
Diversity of Protists I
Retrovirus Life Cycles
Diversity of Protists III
Microbial Mats
Life Histories