The effect of glycerol on the Chlorella symbiosis in Hydra viridis |
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| Authors: | Clive R Wilkinson David C Smith |
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| Institution: | (1) Dept. of Botany, University of Bristol, BS8 1UG Bristol, Great Britain;(2) Present address: Department of Agricultural Science, University of Oxford, OX1 3PF Oxford, Great Britain |
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| Abstract: | In green hydra strains that are bleached by glycerol, photosynthesis is arrested in both intact hydra and freshly extracted algae whereas photosynthesis is not affected by glycerol in  resistant hydra strains and their algae. Glycerol sensitivity is an inherent property of the algae and sensitivity can be transferred to resistant aposymbiotic hydra by infecting them with sensitive algae. It is suggested that the host hydra recognizes glycerol induced changes, other than photosynthetic incompetance, in the algae and either ejects or digests them.Australian Institute of Marine Science, P.M.B. No. 3, Townsville M.S.O. 4810 Australia |
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| Keywords: | symbiosis hydra Chlorella glycerol bleaching photosynthesis |
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