| Title: | High-voltage electrostatic field-induced oxidative stress: Characterization of the physiological effects in Sitobion avenae (Hemiptera: Aphididae) across multiple generations |
| Author(s): | Luo K; Luo C; Li G; Yao X; Gao R; Hu Z; Zhang G; Zhao H; |
| Address: | "State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, China. INRA (French National Institute for Agricultural Research), University Nice Sophia Antipolis, Sophia Antipolis, France" |
| ISSN/ISBN: | 1521-186X (Electronic) 0197-8462 (Linking) |
| Abstract: | "In recent decades, man-made electric fields have greatly increased the intensity of electrostatic fields that are pervasively present in the environment. To better understand the physiological alterations exhibited by herbivorous insects in response to changing electric environments, we determined the activities of anti-oxidative enzymes and the metabolic rate of Sitobion avenae Fabricius (Hemiptera: Aphididae) over multiple generations in response to direct and host-seed exposure to a high-voltage electrostatic field (HVEF) of varying strength for different durations. Under controlled greenhouse conditions, 20-min direct exposure of S. avenae and wheat seeds to a 2- or 4-kV/cm HVEF resulted in significantly increased superoxide dismutase (SOD) activity in the sixth, 11th, 16th, and 21st generations relative to the control activities, whereas significantly decreased SOD activity was detected in the second generation. In addition, the activities of catalase (CAT) and peroxidase (POD) in S. avenae showed significant decreases over multiple generations. We also examined the suppressive effects of the duration of 4-kV/cm treatment on aphid physiology. The results showed that exposure to the 4-kV/cm HVEF for 20 min exerted adverse effects on CAT and POD activities and significantly decreased the metabolic rates of S. avenae, as demonstrated through evaluations of CO(2) production rate, and these parameters were not significantly affected by higher HVEF durations. Overall, these findings increase our understanding of plant-pest interactions under novel HVEF environments and provide information that can improve integrated management strategies for S. avenae. Bioelectromagnetics. 40:52-61, 2019. (c) 2018 Wiley Periodicals, Inc" |
| Keywords: | Animals Antioxidants/metabolism Aphids/enzymology/metabolism/*physiology *Oxidative Stress Pest Control Respiration *Static Electricity High-voltage electrostatic field (HVEF) Sitobion avenae anti-oxidative enzymes metabolic rate plant-pest interactions; |
| Notes: | "MedlineLuo, Kun Luo, Chen Li, Guangyu Yao, Xinjian Gao, Rui Hu, Zuqing Zhang, Gaisheng Zhao, Huiyan eng 39970112/Natural Science Foundation of China/ 30470268/Natural Science Foundation of China/ 2011AA10A106/National High Tech Research and Development Program of China/ 2009AA101102/National High Tech Research and Development Program of China/ 2015BAD27B01/National Support Program of China/ 2007ZDKG-020/Key Scientific and Technological Innovation Special Projects of Shaanxi '13115'/ Top Talents Plan Projects of Northwest A&F University/ 2018/11/23 Bioelectromagnetics. 2019 Jan; 40(1):52-61. doi: 10.1002/bem.22157. Epub 2018 Nov 22" |
