수온별 Red Sea Bream Iridovirus (RSIV) 인위감염에 따른 돌돔의 누적폐사 및 Heat Shock Protein (HSP) 70의 동정

Cumulative Mortality in Striped Beakperch, Oplegnathus fasciatus Infected with Red Sea Bream Iridovirus (RSIV) at Different Water Temperature and Identification of Heat Shock Protein 70

  • 김석렬 (전남대학교 식품∙수산생명의학부) ;
  • 정병문 (전남대학교 식품.수산생명의학부) ;
  • 정성주 (전남대학교 식품.수산생명의학부) ;
  • 키타무라 신이치 (에히메대학교 연안환경과학연구센터) ;
  • 김두운 (전남대학교 식품.수산생명의학부) ;
  • 김도형 (전남대학교 식품.수산생명의학부) ;
  • 오명주 (전남대학교 식품.수산생명의학부)
  • Kim, Seok-Ryel (Division of Food Science and Aqualife Medicine, Chonnam National University) ;
  • Jeong, Byeong-Mun (Division of Food Science and Aqualife Medicine, Chonnam National University) ;
  • Jung, Sung-Ju (Division of Food Science and Aqualife Medicine, Chonnam National University) ;
  • Kitamura, Shin-Ichi (Center for Marine Environment Studies (CMES), Ehime University) ;
  • Kim, Du-woon (Division of Food Science and Aqualife Medicine, Chonnam National University) ;
  • Kim, Do-Hyung (Division of Food Science and Aqualife Medicine, Chonnam National University) ;
  • Oh, Myung-Joo (Division of Food Science and Aqualife Medicine, Chonnam National University)
  • 발행 : 20080400

초록

본 연구에서는 RSIV의 수온에 따른 병원성을 규명하기 위한 연구의 일환으로 수온별로 RSIV를 인위적으로 감염시킨 돌돔의 누적폐사를 관찰하고, 다른 온도에서 사육된 돌돔의 온도 스트레스 단백질인 HSP이 관여하는지를 확인하고자, 돌돔의 HSP 유전자의 염기서열 일부를 밝혔다. 각온도별 감염실험에서 17°C와 20°C의 경우 폐사가 발생하지 않았으나, 25°C 및 27°C 수조에서는 각각 90%와 80%의 누적 폐사율을 보였다. 돌돔에서 확인된 HSP 유전자의 일부는 넙치에서 확인된 HSP70와 97%의 homology를 나타내 돌돔의 HSP70으로 판단되었다.

This study evaluates the pathogenicity in striped beakperch, Oplegnathus fasciatus infected with red sea bream iridovirus (RSIV) at different water temperature (17°C, 20°C, 25°C and 27°C). When the fish group was infected with RSIV at 17°C and 20°C, cumulative mortality did not show any significant difference with control group. In contrast, the case at 25°C and 27°C, cumulative mortality reached more than 80%. However, RSIV was detected from all of the fish in each temperature. To confirm a relationship between temperature change and heat shock protein (HSP), partial HSP70 cDNA was isolated from striped beakperch.

키워드

참고문헌

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