国立研究開発法人 国際農林水産業研究センター | JIRCAS

Co-occurrence of <i>Heterocapsa Circularisquama</i> Bloom and Its Lytic Viruses in Lake Kamo, Japan, 2010

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

In autumn 2009, the first outbreak of the shellfish-killing dinoflagellate Heterocapsa circularisquama bloom was recorded in a small lagoon, Lake Kamo, located on Sado Isl., Niigata Prefecture, Japan. At the time, the fisheries damage on the oyster culture due to the bloom was estimated at about JPY 190 million. Also in summer 2010, H. circularisquama formed a bloom in Lake Kamo, but in this case, no oyster kill was recorded. In the present study, we measured the temporal change in the abundance of viruses causing lysis of H. circularisquama and compared it with the host dynamics. We checked the host specificity and virus sensitivity of the isolated virus clones and host clones, respectively. Different types of host and virus clone dominantly coexisted in this lake, and the intraspecies host specificity of each HcRNAV clone isolated in Lake Kamo, 2010, agreed well with the host range predicted based on the deduced amino acid sequence of the major capsid protein (MCP). Considering the contemporary appearance of the host and virus, viral infection was assumed to be one of the factors affecting the dynamics of H. circularisquama population in this lake.

刊行年月2013-07-01
作成者FUJIMOTO AkihiroKONDO Shin-ichiNAKAO ReikoTOMARU YujiNAGASAKI Keizo
著者キーワード

harmful algal bloom

HcRNAV

population dynamics

virus infection

公開者Japan International Research Center for Agricultural Sciences
データ作成日2013-07-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
47
3
開始ページ329
終了ページ338
DOI10.6090/jarq.47.329
権利Japan International Research Center for Agricultural Sciences
言語eng