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Spiroplasma Eriocheiris Sp. Nov., Associated With Mortality In The Chinese Mitten Crab, Eriocheir Sinensis, Wen Wang, Wei Gu, Gail E. Gasparich, Keran Bi, Jiangtao Ou, Qingguo Meng, Tingming Liang, Qi Feng, Jianqiong Zhang, Ying Zhang
Spiroplasma Eriocheiris Sp. Nov., Associated With Mortality In The Chinese Mitten Crab, Eriocheir Sinensis, Wen Wang, Wei Gu, Gail E. Gasparich, Keran Bi, Jiangtao Ou, Qingguo Meng, Tingming Liang, Qi Feng, Jianqiong Zhang, Ying Zhang
Gail Gasparich
A motile bacterium, designated strain TDA-040725-5T, was isolated from the haemolymph of a Chinese mitten crab, Eriocheir sinensis, with tremor disease. Based on 16S rRNA gene sequence analysis, the strain was phylogenetically distinct from other spiroplasmas but was closely related to Spiroplasma mirum ATCC 29335T. Cells of strain TDA-040725-5T were variable in length and shape, helical and motile, as determined by phase-contrast light microscopy. Examination by electron microscopy revealed wall-less cells delimited by a single membrane. The strain grew in M1D or R-2 liquid media at 20–40 °C, with optimum growth at 30 °C. Doubling time at the optimal temperature …