Publications by authors named "Chang-Wu Peng"
The two-spotted spider mite (Tetranychus urticae) is one of the most well-known pesticide-resistant agricultural pests, with resistance often attributed to changes such as target-site mutations and detoxification activation. Recent studies show that pesticide resistance can also be influenced by symbionts, but their involvement in this process in spider mites remains uncertain. Here, we found that infection with Wolbachia, a well-known bacterial reproductive manipulator, significantly increased mite survival after exposure to the insecticides abamectin, cyflumetofen, and pyridaben.
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- Wolbachia, an endosymbiont, is known to alter host reproduction and influence plant-herbivore interactions, but the role of saliva proteins in these effects is not well understood.
- Research on spider mites revealed that Wolbachia infection leads to fewer egg deposits but a higher rate of those eggs hatching, alongside gene expression changes in salivary proteins.
- The study found that specific salivary proteins (SHOT1s) are linked to Wolbachia density, suggesting they play a key role in how Wolbachia affects the performance of herbivores on plants.
Ras opposite (Rop) is known to play an essential role in regulating vesicle trafficking, including synaptic transmission and general secretion. The fundamental roles of Rop have been confirmed by the observation that null mutations in many organisms generate lethal phenotypes during embryogenesis. However, the effects of Rop during the postembryonic stages, especially in non-model organisms, remain largely unknown.
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- The study focused on the bacterial and fungal communities in two types of rice planthoppers, Laodelphax striatellus and Sogatella furcifera, to understand their diversity and abundance.
- The research found significant differences in bacterial communities based on species, sex, and tissue types, with specific genera like Wolbachia and Cardinium being prominent.
- Fungal communities were more uniform across sexes but showed enrichment in the gut, and no significant relationship was found between bacterial and fungal communities.