Temporal study of Nosema spp. in a cold climate
Temporal study of Nosema spp. in a cold climate
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DOI：
10.1111/j.1758-2229.2012.00386.x
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发表时间：
2013-02-01
影响因子：
3.3
通讯作者：
Fries, Ingemar
中科院分区：
文献类型：
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作者：
Forsgren, Eva;Fries, Ingemar
2007年春天，瑞典全国范围内的一项调查对521名养蜂人的967个蜂群进行了抽样，并对样本进行了微孢子虫检测。感染.在319份阳性样本中，只有32份样本在与两种微孢子虫属的混合感染中含有一定比例的蜡状微孢子虫DNA。高于选择用于比较的1%的截止点。仅发现一个纯的N. cerevisiae感染，其余284个被检测的感染样品是纯的N.apis感染。在2009年和2011年，养蜂人或蜜蜂检查员在2007年提供了混合阳性蜜蜂样本，再次被要求提交样本（2009年，n=96; 2011年，n=83）。2007 - 2011年间，未发现中华微孢子虫感染样本比例增加的趋势，混合感染样本中的中华微孢子虫DNA比例没有增加。得出的结论是，在瑞典，蜜蜂的微孢子虫感染仍然是主要的，并没有一个物种取代其他的趋势。
In a nationwide Swedish survey, 967 honey bee colonies from 521 beekeepers were sampled in the spring of 2007 and the samples assayed for Nosema spp. infections. Of the 319 positive samples, only 32 samples contained a proportion of N.ceranae DNA in mixed infections with both Nosema spp. above the cut-off point chosen for comparisons of 1%. Only one pure N.ceranae infection was found, with the rest 284 infected samples assayed being pure N.apis infections. In 2009 and 2011, beekeepers or bee inspectors providing N.ceranae mixed positive bee samples in 2007 were again asked to submit samples (2009, n=96; 2011, n=83). No trend of an increased proportion of N.ceranae-infected samples could be found. The proportion of N.ceranae DNA in samples with mixed infection did not increase between 2007 and 2011. It is concluded that N.apis is still the dominating Microsporidia infection in honey bees in Sweden and that there is no tendency for one species replacing the other.