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The Effects of Temperature and Humidity around the Beehives on the Distribution of nosema ceranae, and also Geographical and Seasonal Activity of the Infection in the Eastern Black Sea Region of Turkey.

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Journal of Environmental Science and Engineering(B) 2016年第11期5卷 513-522页

作者： Onur Tosun Mustafa Yaman Giresun University Alucra Turan Bulutcu Vocational School Giresun 28700 Turkey Karadeniz Technical University Department of Biology Trabzon 61080 Turkey

20 localities were randomly selected in Eastern Black Sea Region of Turkey and samples were collected from around the beehives from April to September. Total of 4,640 dead adult worker bees were examined during the study. Total infection rate in worker bees was 21.23%. nosema ceranae was identified in all localities with molecular techniques. Temperature and humidity values were measured from around the beehives during field studies. The infection rate ofN. ceranae increased proportionally with increasing temperature and humidity factors. Humidity was more effective than temperature on the infection rate ofN. ceranae. The seasonal activity ofN. ceranae was studied. The highest infection rates were observed in June and July. N. ceranae infection rate was higher in localities that were in low-altitude than in localities that were in high-altitude.

关键词： Temperature humidity geographical distribution nosema ceranae Apis mellifera Turkey.

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Stingless Bee Propolis Effects on Experimental Infection of Apis florea with nosema ceranae

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Journal of Agricultural Science and Technology(A) 2011年第6期1卷 818-825页

作者： G. Suwannapong S. Maksong M. E. Benbow Department of Biology Faculty of Science Burapha University Chon Buri 20131 Thailand Biological Science Program Faculty of Science Burapha University Chon Buri 20131 Thailand Department of Biology University of Dayton College Park Ohio 45469-2320 USA

Propolis collected by stingless bees from various types of plants has been used as an antimicrobial agent in several previous studies. We assessed the effect of propolis produced by a stingless bee, Trigona apicalis, on Apis florea experimentally infected with nosema ceranae, a parasite of honeybees. For parasite inoculation each nosema free-bee was fed 2μL of 50% （w/v） sucrose solution containing N. ceranae spores at 40,000 spores/bee and 0 as a negative control （CO）. Treated bees were provided with 0%, 10%, 20% and 50% propolis （w/v） in water, defined as 0P, 10P, 20P and 50P, respectively. We assessed the effects of propolis 14 days post inoculation. All propolis-treated bees had significantly higher survival than untreated bees. However, survival of nosema-inoculated bees was lower than that of control bees. Bees treated with the highest propolis concentration （50P） had the highest survival ratio. No control bees became infected over the course of the study. However, N. ceranae infection rates of bees treated with 0P, 10P, 20P and 50P were 75 ± 1.4%, 72 ± 5.6%, 69± 4.2% and 47± 1.4%, respectively. In addition, propolis-treated bees had hypopharyngeal gland protein content that was significantly higher than 0P and CO bees. Overall, propolis treatment significantly reduced N. ceranae infection rate and bee mortality and was associated with increased hypopharyngeal gland protein concentration.

关键词： Apisflorea hypopharyngeal glands nosema ceranae ventricular cells.

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First identification of long non-coding RNAs in fungal parasite nosema ceranae

First identification of long non-coding RNAs in fungal paras...

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21世纪第三届全国蜂业科技与海峡两岸蜂产业发展大会暨首届北京密云蜂产业发展高峰论坛

作者： Rui Guo Dafu Chen Cuiling Xiong Chunsheng Hou Yanzhen Zheng Zhongmin Fu Qin Liang Qingyun Diao Lu Zhang Hongquan Wang Zhixian Hou Dhiraj Kumar College of Bee Science Fujian Agriculture and Forestry University Institute of Apicultural Research Chinese Academy of Agricultural Sciences School of Biology and Basic Medical Science Soochow University

nosema ceranae is a unicellular fungal parasite of honey bees and causes huge losses for *** present,no study on *** long non-coding RNAs(lncRNAs) was ***,we sequenced purified spores of *** using strand-specific library construction and high-throughput RNA sequencing *** total,eighty three novel IncRNAs were predicted from *** spore samples,including lncRNAs,long intergenic non-coding RNAs(lincRNAs) and sense ***,these lncRNAs share similar characteristics with those identified in mammals and plants,such as shorter length and fewer exon number and transcript isoforms than protein coding ***,the expression of 12 lncRNAs was confirmed with RT-PCR,confirming their true *** our knowledge,this is the first evidence of lncRNAs produced by a microsporidia species,offering novel insights into basic biology such as regulation of gene expression of this widespread taxonomic group.

关键词： RNA-seq long non-coding RNA nosema ceranae honey bee

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