Endonucleobiotic Bacteria of Clams in Portugal
Category 3 (Host Not in Canada)
Common, generally accepted names of the organism or disease agent
Endonucleobiotic bacteria of clams, endonucleobiosis.
Scientific name or taxonomic affiliation
Endonucleobiotic, Gram-negative, bacteria.
The estuarine region of Faro in southern Portugal.
Tapes (=Ruditapes) decussatus.
Impact on the host
Observed in the nucleus of branchial epithelial cells with no evidence of associated disease.
Electron Microscopy: A variable number (usually 5-8 per ultrathin section with about 15 per nucleus) of Gram-negative (identified by ultrastructure of outer membrane of cell wall and cytoplasm membrane) bacteria irregularly distributed among the chromatin dots of the nucleoplasm.
Methods of control
No known methods of prevention or control.
Azevedo, C. 1989. Fine structure of endonucleobiotic bacteria in the gill epithelium of Ruditapes decussatus. Marine Biology 100: 339-341.
Bower, S.M. (1996): Synopsis of Infectious Diseases and Parasites of Commercially Exploited Shellfish: Endonucleobiotic Bacteria of Clams in Portugal.
Date last revised: September 1996
Comments to Susan Bower
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