Development of the Ectoparasite ‘Dissodinium Pseudocalani’ (Dinophyceae)
- Synopsis
- The peridinian ‘Dissodinium pseudocalani’ feeds holozoically upon the eggs of the copepod ‘Pseudocalanus elongatus’ of which it is an ectoparasite. The parasitic stage is followed by vegetative multiplication (sporogenesis). The bladder-like swollen peridinian develops into a primary cyst and the protoplast divides into 4, 8, 16, or 32 cells, resulting in secondary cysts. Dissolving the cyst membranes, the dinospores become free and are again capable of infecting eggs. Simultaneously, during sporogenesis, the food clump shrinks to a tiny reddish body.
- Language
- English
- Country
- Germany
- Medium
- Film; Film. 16mm. sd. b&w. 11 min.
- Technical information
- Black-and-white / Sound
- Year of production
- 1970
- Availability
- Hire
- Uses
- Second year and final courses in botany, marine biology, zoology and parasitism.*
- Subjects
- Biology
- Keywords
- parasitic plants; spore plants
Distribution Formats
- Type
- Film
- Format
- 16mm
Production Company
Distributor
- Name
Higher Education Film & Video Library
- services@bufvc.ac.uk
- Web
- http://bufvc.ac. External site opens in new window
- Phone
- 020 7393 1503
- Fax
- 020 7393 1555
- Address
- c/o British Universities Film & Video Council
77 Wells Street
London
W1T 3QJ - Notes
- Catalogue available from British Universities Film & Video Council.
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