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Two species of genus Nudaria Haworth, N. fasciata Moore, 1878 and N. phallustortens Holloway, 2001, are reported for the first time from China. The adult and genital characters of the two species are briefly redescribed, with illustrations and distributional data given.
In this study, β-haemolysin gene (AHTPS30HEM) of Aeromonas hydrophila was cloned from diseased fish in mainland China. AHTPS30HEM gene (AB021152) resulted in a 1589 bp fragment which covers the open reading frame (ORF) in region 5-1486 coding for 493 amino acids. Multiple alignment of AHTPS30HEM with other β-haemolysin amino acid sequences showed 18 amino acid substitutions between AHTPS30HEM and...
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