Publications by authors named "Yu-Pei Mu"

Most coexisting insect species exhibit stunted growth compared to individual species on plants. This phenomenon reflects an interspecific antagonism drawing extensive attention, while the underlying mechanisms remain largely uncharacterized. Mirids (Apolygus lucorum) and cotton bollworms (Helicoverpa armigera) are two common cotton pests.

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Background: The fall armyworm (FAW, Spodoptera frugiperda (J.E. Smith)) is a polyphagous agricultural pest with rapidly evolving adaptations to host plants.

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Caterpillar oral secretion (OS) contains active molecules that modulate plant defense signaling. We isolated an effector-like protein (Highly Accumulated Secretory Protein 1, HAS1) from cotton bollworm (Helicoverpa armigera) that is the most highly accumulated secretory protein of the nondigestive components in OS and belongs to venom R-like protein. Elimination of HAS1 by plant-mediated RNA interference reduced the suppression of OS on the defense response in plants.

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The green mirid bug () and the cotton bollworm () are both preferred to live on cotton but cause different symptoms, suggesting specialized responses of cotton to the two insects. In this study, we investigated differential molecular mechanisms underlying cotton plant defenses against and transcriptomic analyses. At the transcription level, jasmonate (JA) signaling was dominated in defense against whereas salicylic acid (SA) signaling was more significant in defense against .

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Synopsis of recent research by authors named "Yu-Pei Mu"

  • - Yu-Pei Mu's recent research focuses on the interactions between cotton plants and various insect pests, particularly examining plant defense mechanisms against the cotton bollworm (Helicoverpa armigera) and the green mirid bug (Apolygus lucorum).
  • - Key findings include the identification of specific proteins secreted by pests, such as a TOPLESS targeting protein from mirids and a highly accumulated secretory protein from cotton bollworms, which modulate plant defenses by manipulating plant signaling pathways.
  • - The research also highlights the role of differential transcription and alternative splicing in cotton's specialized defense responses, revealing that jasmonate signaling is significant against the bollworm, while salicylic acid signaling is more critical for defenses against the mirid bug.

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