Publications by authors named "Bao-yun Xu"
Purpose: To investigate the pathological changes of the synovium in mice with post-traumatic osteoarthritis (PTOA) treated with 4-octyl itaconate (4-OI) and evaluate the therapeutic effects of 4-OI.
Methods: In the phenotypic validation experiment, the mice were randomly divided into 3 groups: wild-type (WT) group, sham group, and destabilization of the medial meniscus (DMM) group. Through MRI, micro-CT, and histological analysis, it was determined that DMM surgery induced a mouse PTOA model with significant signs of synovitis.
The western flower thrips, Frankliniella occidentalis (Pergande), and the sweetpotato whitefly, Bemisia tabaci (Gennadius), are both invasive insect pests and are present in most of the same agricultural crops without a clear dominance of either species. Here, intra- and interspecific competition in B. tabaci and F.
View Article and Find Full Text PDFThe sweet potato whitefly, Bemisia tabaci (Gennadius) (Hemiptera:Aleyrodidae), is an invasive and damaging pest of field crops worldwide. The neonicotinoid insecticide imidacloprid has been widely used to control this pest. We assessed the species composition (B vs.
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- The study examined how the density of symbiotic bacteria affects the whitefly Bemisia tabaci, focusing on the influence of host plants and insecticide resistance.
- The relative amounts of four symbionts—Portiera, Hamiltonella, Rickettsia, and Cardinium—were measured in whiteflies adapted to different host plants (cucumber, cabbage, and cotton) and in resistant versus susceptible populations to the insecticide thiamethoxam.
- Results showed that host plant type and insecticide resistance significantly changed the levels of symbionts, with differences observed in the populations depending on their plant host and resistance status.
Article Synopsis
- Thiamethoxam, a widely used insecticide for controlling sweetpotato whiteflies, is facing resistance due to excessive use, leading to research on the molecular mechanisms of this resistance.
- Researchers employed suppression subtractive hybridization (SSH) to compare gene profiles between resistant and susceptible whitefly strains, identifying a total of 124 differentially expressed genes categorized by various functions.
- Validation through quantitative real-time PCR (qRT-PCR) found that while there were consistent results, only about 50% of the genes displayed significant expression differences, with one notable gene, a NAD-dependent methanol dehydrogenase, being highly over-expressed in resistant strains, particularly during the egg stage and in adult females' abdomens
Background: Bemisia tabaci (Gennadius) is a phloem-feeding insect poised to become one of the major insect pests in open field and greenhouse production systems throughout the world. The high level of resistance to insecticides is a main factor that hinders continued use of insecticides for suppression of B. tabaci.
View Article and Find Full Text PDFThe sublethal effects of the insecticide spinosad were assessed against Plutella xylostella (L.) (Lepidoptera: Plutellidae) by using a demographic approach. The resulting data were analyzed based on the age-stage and two-sex life table model.
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