Long chain fatty acid coenzyme A ligase (FACL) regulates triazophos-induced stimulation of reproduction in the small brown planthopper (SBPH), Laodelphax striatellus (Fallen)

Zhang, Xian; Ding, Jun; Xu, Bing; Ge, Lin-Quan; Yang, Guo-Qing; Wu, Jin-Cai

doi:10.1016/j.pestbp.2018.04.002

Cited by 4 publications

(3 citation statements)

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“…In addition, exposure to triazophos increased the titers of circulating juvenile hormone, the contents of unfractionated lipids and soluble sugar that supported reproduction of planthoppers . Thus, triazophos was generally considered to be a classic resurgence‐inducing insecticide …”

Section: Discussionmentioning

confidence: 99%

“…19 Thus, triazophos was generally considered to be a classic resurgence-inducing insecticide. 25,27 Considering the important role of Vg in transovarial transmission of RSV, 35 we injected dsVg to further investigate the role of Vg. The results indicate that LsVg mRNA expression in the ovaries is significantly reduced by 84.1% and LsVgR is significantly decreased by 47.3%.…”

Section: Wileyonlinelibrarycom/journal/psmentioning

confidence: 99%

“…24,25 These metabolites provide the energy that induces BPH reproduction and resurgence. Meanwhile, triazophos up-regulated the expressions of fecundity-related genes in planthoppers, including acyl-coenzyme A oxidase, 26 pyruvate kinase, 24 fatty acid coenzyme A ligase, 27 hexokinase-1-like 25 and vitellogenin (Vg). 23,25,[28][29][30] In addition, triazophos led to enhanced thermotolerance and prolonged longevity of BPH.…”

Section: Introductionmentioning

confidence: 99%

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Triazophos‐induced vertical transmission of rice stripe virus is associated with host vitellogenin in the small brown planthopper Laodelphax striatellus

Zhang

et al. 2020

Pest Management Science

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BACKGROUND Rice stripe virus (RSV) is one of the most serious rice diseases in East Asia. The small brown planthopper (SBPH), Laodelphax striatellus, is an economically important rice pest. SBPH transmits RSV horizontally and vertically, resulting in serious rice economic losses. Exposure to sublethal doses of insecticides can induce many physiological and cellular changes in insects. However, the mechanism underlying triazophos‐induced RSV vertical transmission remains unclear. Here, we investigated the role of vitellogenin (Vg) in triazophos‐induced RSV vertical transmission. RESULTS RSV vertical transmission rates were significantly induced by sublethal exposure to triazophos. The transcript abundance of viral RNA3 segment (RNA3) and capsid protein (CP) in the ovaries of SBPH were also significantly increased. Triazophos induced the expression level of Vg in L. striatellus (LsVg) and increased the contents of ovarian protein and fat body protein. Knockdown of Vg significantly reduced the expression levels of LsVg and Vg receptor (LsVgR), and decreased RSV accumulations in the ovaries. Double‐stranded Vg (dsVg)‐mediated down‐regulation could be rescued by exposure to triazophos. Vertical transmission rate of the dsVg‐injected group was significantly decreased compared with the dsGFP‐injected group, and triazophos significantly rescued the RSV vertical transmission rate of the dsVg‐injected group. CONCLUSION Our results indicate that triazophos‐induced RSV vertical transmission is associated with Vg. This work will help us to further elucidate sublethal doses of insecticides‐mediated effects and develop new strategies for pest control. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 99%