Microtubules in ‘Echinosphaerium Nucleofilum’

Synopsis: Microtubules are microscopic elements which provide cell extensions, such as cilia and flagella, with a more or less rigid form. They are present in the long, needle-like extensions, called axopodia, of the multinucleate protozoan ‘Echinosphaerium nucleofilum’. This organism lives in pond water and moves slowly over the substrate by using its axopodia. The axopodia are also used to capture prey, and, through retraction, to transport the capture to the cell body. The role of microtubules in the formation and maintenance of the axopodia of Echinosphaerium is investigated. Dr Ian Gibbons of the University of Hawaii supplied the electron micrography of the 9 + 2 pattern of microtubules in the flagella of ‘Trichonympha’. Nomarski interference, phase contrast and polarization microscopy were used for filming.
Series: Developmental Biology Film Program, Series
Language: English
Country: United States
Medium: Film; Film. 16mm. sd. col. 10 min.
Technical information: Black-and-white / Sound
Year of production: 1972
Availability: Hire
Documentation: Notes supplied.
Uses: Zoology, biology, especially cell and developmental biology.*
Subjects: Biology
Keywords: cells; developmental biology; microtubules

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