Characterization of different viruses infecting the marine harmful algal bloom species Phaeocystis globosa
Characterization of different viruses infecting the marine harmful algal bloom species Phaeocystis globosa
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DOI：
10.1016/j.virol.2005.07.002
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发表时间：
2005-10-10
期刊：
影响因子：
3.7
通讯作者：
Brussaard, CPD
中科院分区：
文献类型：
--
作者：
Baudoux, AC;Brussaard, CPD
2000-2001年从北海南部分离到12种感染海洋单细胞真核有害藻华物种球形棕囊藻的裂解病毒（PgV），并对其进行了部分鉴定。所有PgV分离物与属于藻DNA病毒科的其他藻类病毒具有共同的表型特征，并可分为四个不同的组。两个主要的组（PgV组I和II）进行了区分的颗粒大小（分别为150和100 nm），基因组大小（466和177 kb）和结构蛋白组成的基础上。裂解周期显示PgV I组的潜伏期为10 h，PgV IIA和IIB组的潜伏期为12 h和16 h。宿主特异性和温度敏感性最终定义了第四组（PgV组IIC）。我们的研究结果表明，病毒感染不仅在球形棕囊藻的动态中起重要作用，而且在宿主和病毒群落的多样性中也起重要作用。(c)2005年爱思唯尔公司All rights reserved.
Twelve lytic viruses (PgV) infecting the marine unicellular eukaryotic harmful algal bloom species Phaeocystis globosa were isolated from the southern North Sea in 2000-2001 and partially characterized. All PgV isolates shared common phenotypic features with other algal viruses belonging to the family Phycodnaviridae and could be categorized in four different groups. Two main groups (PgV Group I and II) were discriminated based on particle size (150 and 100 nm respectively), genome size (466 and 177 kb) and structural protein composition. The lytic cycle showed a latent period of 10 h for PgV Group I and latent periods of 12 h and 16 h for PgV Group IIA and IIB. Host specificity and temperature sensitivity finally defined a fourth group (PgV Group IIC). Our results imply that viral infection plays an important role not only in P. globosa dynamics but also in the diversity of both host and virus community. (c) 2005 Elsevier Inc. All rights reserved.