Abstract
ABSTRACT. A marine kinetoplastid flagellate, Cryptobia eilatica n. sp., is described from the gills of cultured gilt‐head sea bream Sparus aurata L. and wild black‐spot sea bream Diplodus noct (Valenciennes) in the Red Sea. The trophozoite is elongated and lacks a contractile vacuole and undulating membrane. The body averages 13.5 × 4.1 μm, anterior flagellum 9.7 μm, and free portion of recurrent flagellum 15.2 μm. The ultrastructural features of the species exhibit great similarity to various previously studied Cryptobiids. Cryptobia eilatica trophozoites feed on bacteria, show a preference for the branc hial interlamellar crypts, and attach to the host epithelium by means of the recurrent flagellum. Neither penetration into the epithelial cells, nor any direct damage to host tissue was observed. Cryptobia eilatica inhabits a purely marine habitat, but its trophozoite tolerates salinities as low as 10 ppt.
Original language | English |
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Pages (from-to) | 482-489 |
Number of pages | 8 |
Journal | Journal of Eukaryotic Microbiology |
Volume | 37 |
Issue number | 6 |
DOIs | |
State | Published - Nov 1990 |
Externally published | Yes |
Keywords
- Diplodus noct (Valenciennes)
- Red Sea
- Sparus aurata Linnaeus
- halotolerance
- mariculture
ASJC Scopus subject areas
- Parasitology