Co-assembly of two nicotinic acetylcholine receptor subunits in Pardosa pseudoannulata, an important predatory enemy spider of insect pests

Song Feng; Liu Zewen

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Co-assembly of two nicotinic acetylcholine receptor subunits in Pardosa pseudoannulata, an important predatory enemy spider of insect pests

Song Feng 1,Liu Zewen 2 * #

1.Key Laboratory of Monitoring and Management of Plant Diseases and Insects, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, NanJing 210095

2.Key Laboratory of Monitoring and Management of Plant Diseases and Insects, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing, China.

*Correspondence author

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Funding: 等学校全国优秀博士学位论文作者专项资金（No.2007B60）, 高等学校博士学科点专项科研基金资助课题（No.200803070033）

Opened online:16 February 2012

Accepted by: none

Citation: Song Feng,Liu Zewen.Co-assembly of two nicotinic acetylcholine receptor subunits in Pardosa pseudoannulata, an important predatory enemy spider of insect pests[OL]. [16 February 2012] http://en.paper.edu.cn/en_releasepaper/content/4463549

Neonicotinoids, such as imidacloprid, are selective agonists of insect nicotinic acetylcholine receptors (nAChRs) and display selective toxicity against insects versus insect's natural enemy spiders, such as Pardosa pseudoannulata. As the important neurotransmitter receptor and target of insecticides, insect nAChRs are extensively studied. In contrast, little is known on spider nAChRs with agricultural importance. Here we describe the cloning of two nAChR α subunits (Ppα1 and Ppα2) and the co-assembly of Ppα1 and Ppα2 subunits with vertebrate β2 subunit into 'triplet' nAChRs (Ppα1/Ppα2/rβ2) in Xenopus oocyte. This is the first finding of the expression of two spider nAChRs α subunits in one nicotinic receptor.

Keywords:Agricultural insect and pest management; Pardosa pseudoannulata; nicotinic acetylcholine receptors; subunit composition; functional expression

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