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On the symbiosis between Amphidinium klebsii [Dinophyceae] and Amphiscolops langerhansi [Turbellaria: Acoela]1

Published online by Cambridge University Press:  11 May 2009

D. L. Taylor
D. L. Taylor
Affiliation:
Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Rickenbacker Causeway, Miami, Florida 33149, U.S.A.
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Extract

INTRODUCTION

Algal-invertebrate symbiosis is common among species of acoelus Turbellaria in both marine and freshwater environments (Droop, 1963; Buchner, 1965; McLaughlin & Zahl, 1966). Associations involving these organisms exhibit broad variations in the amount of integration achieved through the reciprocal relations of hosts and symbionts. In the symbiosis involving Convoluta roscqffensis Graff, the maximum degree of intimacy is achieved, and the host appears totally dependent on its symbiont for its nutritional requirements (Keeble & Gamble, 1907; Keeble, 1910). This type of closed symbiosis is unknown in other invertebrate phyla and may even be unique among turbellarians. Similarly, the association between Amphiscolops langerhansi (Graff) and a unicellular alga is a typical example of the more common, open or facultative symbiosis. Both species (with their algal partners) are potentially useful as investigative tools in the study of cellular interaction in algal-invertebrate symbiosis, and may provide the basis for understanding the broader aspects of cellular integration in metazoan tissues. Recent studies of C. roscqffensis provide a basis for understanding the biology of the symbiosis which it sustains (Parke & Manton, 1967; Provasoli, Yamasu & Manton, 1968; Provasoli, Yamasu & Mabuchi, 1969). The present communication is intended to provide similar information on the association found in A. langerhansi.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 51 , Issue 2 , May 1971 , pp. 301 - 313
Copyright
Copyright © Marine Biological Association of the United Kingdom 1971

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Footnotes

1

Contribution no. 1326 from the Rosenstiel School of Marine and Atmospheric Sciences.

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