Gill Symbionts in Thyasirids and Other Bivalve Molluscs
Prokaryote organisms have been found in the gills of six species of Thyasiridae, collected in the north-east Atlantic region, from depths of 15 to 1250 m. The fine structure of the gill epithelia and the symbiotic Gram-negative bacteria is described. The bacteria occur extracellularly, between a thi...
| Published in: | Journal of the Marine Biological Association of the United Kingdom |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
1986
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| Online Access: | http://dx.doi.org/10.1017/s0025315400048517 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400048517 |
| Summary: | Prokaryote organisms have been found in the gills of six species of Thyasiridae, collected in the north-east Atlantic region, from depths of 15 to 1250 m. The fine structure of the gill epithelia and the symbiotic Gram-negative bacteria is described. The bacteria occur extracellularly, between a thin cuticle and the apical membrane of the host cell. This differs from the intracellular position of bacterial symbionts in two lucinid species, Lucinoma borealis and Myrtea spinifera , and many other bivalves already known to harbour symbionts in their gills. Four species of Thyasiridae and Diplodonta rotundata , a member of the closely related family Ungulinidae, were found to lack gill symbionts. |
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