FN Archimer Export Format PT J TI Detection of a mollicute-like organism in kuruma shrimp, Penaeus japonicus BT AF CHOI, Dong-Lim PARK, Myoung-Ae SOHN, Sang-Gyu HEO, Moon-Soo RENAULT, Tristan AS 1:;2:;3:;4:;5:; FF 1:;2:;3:;4:;5:PDG-DOP-DCN-AGSAE-LGP; SI LA TREMBLADE SE PDG-DOP-DCN-AGSAE-LGP TC 0 UR https://archimer.ifremer.fr/doc/1996/publication-2901.pdf LA English DT Article DE ;Transmission electron microscopy;Hepatopancreas;Mollicute;Intracellular bacteria;Penaeus japonicus AB A filamentous form of mollicute-like bacterium was detected during a routine health survey of wild adult kuruma shrimp Penaeus japonicus. The kuruma shrimp were native to Japan and were imported to Korea. The histology showed no pathological changes. Transmission electron microscopy revealed extensive infections of hepatopancreatic epithelial cells by a pleomorphic, filamentous intracellular bacterium. The filamentous bacterium was of about 60 nm in diameter and 300 nm to more than 1µm in length. The morphology of bacteria were filamentous and branched with terminal blebs, or knobs, on the branches. They lacked the cell wall, and were bounded by the plasma membrane. They contained typical prokaryotic ribosomes and fibrillar DNA-like strands. No additional internal structure has been observed. They are considered to be mollicutes, based upon the morphological appearance and upon the cellular location PY 1996 SO Journal Fish Pathology PU The Japanese Society of Fish Pathology VL 9 IS 1 BP 33 EP 40 ID 2901 ER EF