Abstract：
:Insect hemocytes play an important role in insects' defense against environmental stressors as they are entirely dependent on their innate immune system for pathogen defense. In recent years a dramatic decline of pollinators has been reported in many countries. The drivers of this declines appear to be associated with pathogen infections like viruses, bacteria or fungi in combination with pesticide exposure. The aim of this study was thus to investigate the impact of imidacloprid, a neonicotinoid insecticide, on the cellular immune response of two pollinators (Apis mellifera and Bombus terrestris) during simultaneous immune activation with LPS (lipopolysaccharide) of Escherichia coli. For this purpose the phagocytosis capacity as well as the production of H2O2 and NO of larval hemocytes, exposed to five different imidacloprid concentrations in vitro, was measured. All used pesticide concentrations showed a weakening effect on phagocytosis with but also without LPS activation. Imidacloprid decreased H2O2 and increased NO production in honeybees. Immune activation by LPS clearly reinforced the effect of imidacloprid on the immune response of hemocytes in all three immune parameters tested. Bumblebee hemocytes appeared more sensitive to imidacloprid during phagocytosis assays while imidacloprid showed a greater impact on honeybee hemocytes during H2O2 and NO production.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Walderdorff L,Laval-Gilly P,Bonnefoy A,Falla-Angel Jdoi
10.1016/j.jinsphys.2018.05.002subject
Has Abstractpub_date
2018-07-01 00:00:00pages
17-24eissn
0022-1910issn
1879-1611pii
S0022-1910(17)30456-0journal_volume
108pub_type
杂志文章abstract：:In comparison to other similarly sized mantis species examined in previous studies, Euchomenella macrops has a significantly smaller head, shorter foreleg tibia, but longer prothorax which have been interpreted as specializations for the capture of smaller, slower prey. We tested this conjecture by assessing the rates...
journal_title：Journal of insect physiology
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journal_title：Journal of insect physiology
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journal_title：Journal of insect physiology
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doi：10.1016/j.jinsphys.2014.03.003
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.07.007
更新日期：2010-12-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.02.001
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.10.004
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(97)00020-6
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.03.007
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2006.10.009
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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journal_title：Journal of insect physiology
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journal_title：Journal of insect physiology
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2014-11-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.03.006
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2020-01-01 00:00:00
abstract：:Communication in ants is based to a great extent on chemical compounds. Recognition of intruders is primarily based on cuticular hydrocarbon (CHC) profile matching but is prone to being cheated. Eucharitid wasps are specific parasitoids of the brood of ants; the immature stages are either well integrated within the co...
journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2015-04-01 00:00:00
abstract：:Many species of mites and ticks are of agricultural and medical importance. Much can be learned from the study of transcriptomes of acarines which can generate DNA-sequence information of potential target genes for the control of acarine pests. High throughput transcriptome sequencing can also yield sequences of genes...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.09.006
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