共 50 条
Role of a tachykinin-related peptide and its receptor in modulating the olfactory sensitivity in the oriental fruit fly, Bactrocera dorsalis (Hendel)
被引:23
作者:
Gui, Shun-Hua
[1
]
Jiang, Hong-Bo
[1
]
Xu, Li
[1
]
Pei, Yu-Xia
[1
]
Liu, Xiao-Qiang
[1
]
Guy Smagghe
[1
,2
]
Wang, Jin-Jun
[1
]
机构:
[1] Southwest Univ, Coll Plant Protect, Key Lab Entomol & Pest Control Engn, Chongqing 400715, Peoples R China
[2] Univ Ghent, Dept Crop Protect, Ghent, Belgium
关键词:
Oriental fruit fly;
Bactrocera dorsalis;
Neuropeptide;
Tachykinin-related peptide;
G-protein coupled-receptor;
Olfaction;
DROSOPHILA ANTENNAL LOBE;
FUNCTIONAL-CHARACTERIZATION;
INSECT NEUROPEPTIDES;
DIPTERA TEPHRITIDAE;
ODOR;
IDENTIFICATION;
EXPRESSION;
HOMOLOGY;
VOLATILE;
CLONING;
D O I:
10.1016/j.ibmb.2016.12.002
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Insect tachykinin-related peptide (TRP), an ortholog of tachykinin in vertebrates, has been linked with regulation of diverse physiological processes, such as olfactory perception, locomotion, aggression, lipid metabolism and myotropic activity. In this study, we investigated the function of TRP (BdTRP) and its receptor (BdTRPR) in an important agricultural pest, the oriental fruit fly Bactrocera dorsalis. BdTRPR is a typical G-protein coupled-receptor (GPCR), and it could be activated by the putative BdTRP mature peptides with the effective concentrations (EC50) at the nanomolar range when expressed in Chinese hamster ovary cells. Consistent with its role as a neuromodulator, expression of BdTRP was detected in the central nervous system (CNS) of B. dorsalis, specifically in the local interneurons with cell bodies lateral to the antennal lobe. BdTRPR was found in the CNS, midgut and hindgut, but interestingly also in the antennae. To investigate the role of BdTRP and BdTRPR in olfaction behavior, adult flies were subjected to RNA interference, which led to a reduction in the antenna] electrophysiological response and sensitivity to ethyl acetate in the Y-tube assay: Taken together, we demonstrate the impact of TRP/TRPR signaling on the modulation of the olfactory sensitivity in B. dorsalis. The result improve our understanding of olfactory processing in this agriculturally important pest insect. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:71 / 78
页数:8
相关论文
共 50 条