Publications by authors named "Chun-Li Xiu"
Article Synopsis
- Ectropis grisescens is a harmful tea pest in China, and its larvae can change color to blend in, making them harder to spot.
- Researchers cloned a gene called Egebony, linked to melanin production, and used CRISPR to create mutants without this gene, finding that these mutants had darker pigmentation but struggled to emerge from their protective shells as moths.
- The study highlights how the loss of Egebony affects the structure of the puparium, suggesting a potential target for pest control strategies by manipulating this gene.
The tea leafhopper, , relies on substrate-borne vibrations for sexual communication and is mainly controlled with chemical pesticides, which poses risks to the environment and food safety. Based on previous studies, we conducted a series of behavioral assays by simultaneous observation of vibration signals and movement to investigate the mating and post-copulation behavior of tea leafhoppers. During mating, the activity of was restricted to dawn and dusk and concentrated on the sixth or seventh mature leaf below the tea bud.
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- The study investigates the olfactory genes in male and female moths, specifically looking at their ability to detect type-II sex pheromone components, which play a crucial role in their communication and reproduction.
- Researchers identified 150 candidate olfactory genes, including various types of receptors and proteins, with notable findings that certain receptors were more abundant in males, suggesting a specialized role in pheromone detection.
- In contrast, many other receptors showed higher expression in female antennae, indicating possible functions related to detecting host plant volatiles, highlighting the complexity of olfactory mechanisms in these moths.
Plant-derived volatiles play a significant role in host selection of phytophagous insects, but their role in seasonal host shifts remain unclear. The polyphagous mirid bug Apolygus lucorum displays marked seasonal host alternation. During summer, volatiles from flowering plants play a key role in A.
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- Sex pheromone-based pest management is important for controlling insect pests like the Scopula subpunctaria tea pest in China, which uses Type II sex pheromones.
- Researchers analyzed the sex pheromone gland transcriptome of this pest and identified 85,246 transcripts, including 79 Cytochrome P450 monooxygenases, 29 odorant-binding proteins, and 17 chemosensory proteins that likely play roles in pheromone biosynthesis and transportation.
- Findings suggest specific genes (like SsubCYP341A and SsubOBPs) are highly expressed in the pheromone gland and male antennae, providing crucial information for developing biological control methods by targeting these pheromone pathways.
Article Synopsis
- The study focuses on three pest species of the genus Adelphocoris in China that damage important crops like cotton and alfalfa.
- Researchers identified seven key volatile organic compounds from various host plants that attracted these insects, using specialized gas chromatography techniques.
- Notably, the study found that different Adelphocoris species responded to specific compounds, suggesting these chemicals could be useful for creating targeted attractants for pest management.