Abstract:
The present invention provides a test method for quickly identifying infection by a small amount of Azumiobodo hoyamushi using loop-mediated isothermal gene amplification (LAMP). In order to develop a high sensitive test method using an LAMP reaction, the sensitivity and the specificity in Azumiobodo hoyamushi and Halocynthia roretzi with soft tunic syndrome are analyzed by preparing a primer set for LAMP containing six primers to target kinetoplast 18S ribosome genes of Azumiobodo hoyamushi and amplify a reactant with a specific loop type; and establishing an optimal reaction condition. Thus, Azumiobodo hoyamushi which is known for causing soft tunic syndrome is quickly detected from sea water or Halocynthia roretzi with the initial stage soft tunic syndrome using the LAMP reaction and damage spread is early detected by applying the method to a system for predicting soft tunic syndrome in farmed Halocynthia roretzi.