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Relative amount of symbionts in insect hosts changes with host-plant adaptation and insecticide resistance.
MedLine Citation:
PMID:  23339787     Owner:  NLM     Status:  In-Data-Review    
The impact of symbionts on their hosts depends on their infection density. In the current study, we investigated the effects of host plant and insecticide resistance on the relative amount of symbionts Portiera, Hamiltonella, Rickettsia, and Cardinium in the whitefly Bemisia tabaci (Gennadius) B biotype. The relative amount of symbionts in three host plant-adapted subpopulations (cucumber, Cucumis sativus L.; cabbage, Brassica oleracea L.; and cotton, Gossypium herbaceum L.) with the same genetic background and insecticide (thiamethoxam)-resistant and -susceptible subpopulations with the same genetic background were measured by quantitative polymerase chain reaction. The results showed that the cucumber population harbored more Portiera than the cabbage and cotton populations, the cabbage population harbored more Hamiltonella than the cucumber population, Hamiltonella amount did not statistically differ between the cotton and cucumber or the cotton and cabbage populations, and the cabbage population harbored more Rickettsia and Cardinium than the cucumber and cotton populations. In addition, the thiamethoxam-susceptible population harbored more Portiera and Hamiltonella than the thiamethoxam-resistant population, whereas the thiamethoxam-resistant population harbored more Rickettsia than the thiamethoxam-susceptible population. These results indicated that relative amounts of symbionts were affected significantly by host plant-adaption and insecticide resistance, and the response to host plant and insecticide differed among the symbionts.
Hui Peng Pan; Dong Chu; Bai Ming Liu; Wen Xie; Shao Li Wang; Qing Jun Wu; Bao Yun Xu; You Jun Zhang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental entomology     Volume:  42     ISSN:  1938-2936     ISO Abbreviation:  Environ. Entomol.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502320     Medline TA:  Environ Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  74-8     Citation Subset:  IM    
Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China.
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