Pest Management Science (2013) 69, 1315-1325

Xue-Meng Gao, Fu-Xian Jia, Guang-Mao Shen, Hua-Qin Jiang, Wei Dou and Jin-Jun Wang (2013)
Involvement of superoxide dismutase in oxidative stress in the oriental fruit fly, Bactrocera dorsalis: molecular cloning and expression profiles
Pest Management Science 69 (12), 1315-1325
Abstract:
Background
Bactrocera dorsalis, one of the most economically important fruit fly pests in East Asia, is well adapted to various environmental conditions. Pesticides, pathogens and other stresses can cause oxidative damage in most organisms. The superoxide dismutase (SOD) family contains some of the most important enzymes in the antioxidant protection system of the fruit fly and other organisms.
Results
Four full-length cDNA sequences encoding one MnSOD (BdSOD2-1) and three Cu-ZnSODs (BdSOD1-1, BdSOD1-2 and BdSOD1-3) were cloned. The expression profiles of these four genes under different stresses showed them to be involved in response to detrimental conditions including heavy metals, pesticides, extreme temperatures and lipopolysaccharide (LPS) stresses. More specifically, the expression levels of these genes were found to be depressed in the presence of copper, zinc and manganese. The expression of all four SOD genes increased upon exposure to lead, cadmium, low temperature (0 °C) and LPS stresses. Only BdSOD1-3 transcription increased significantly at high temperature (40 °C) exposure. The expressions levels of BdSOD1-2 and BdSOD1-3 increased significantly in the presence of β-cypermethrin and malathion, but only the expression of BdSOD2-1 increased in the presence of avermectin treatment.
Conclusion
These different expression profiles suggest that the four BdSODs play different roles and respond to different oxidative stresses in B. dorsalis. Some BdSODs undergo specific reaction in the response to specific oxidative stresses.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jin-Jun Wang

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bactrocera dorsalis