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Mixotrophy in marine species of Chrysochromulina (Prymnesiophyceae): ingestion and digestion of a small green flagellate

Published online by Cambridge University Press:  11 May 2009

Harriet L. J. Jones ,
B. S. C. Leadbeater  and
J. C. Green
Harriet L. J. Jones
Affiliation:
School of Biological Sciences, University of Birmingham, Birmingham, B15 2TT
B. S. C. Leadbeater
Affiliation:
School of Biological Sciences, University of Birmingham, Birmingham, B15 2TT
J. C. Green
Affiliation:
Plymouth Marine Laboratory, Citadel Hill, Plymouth, PL1 2PB
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Extract

Species of Chrysochromulina (Prymnesiophyceae) were screened for their ability to ingest inert material and live cells of a small green flagellate. The species C. brevifilum showed a marked preference for the small green flagellate over carmine particles and the rate of ingestion of the flagellate was proportional to its concentration and inversely proportional to light intensity. Ingestion was also higher by phosphate-starved Chrysochromulina, and a clear predator/prey relationship was demonstrated with C. brevifilum clearly benefiting, in terms of growth rate, from the ingestion of the small green flagellate. Electron micrographs confirmed that digestion occurs.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 73 , Issue 2 , May 1993 , pp. 283 - 296
Copyright
Copyright © Marine Biological Association of the United Kingdom 1993

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