A parasitoid overcomes collective defense by silencing host communication
How to prepare an accurate paper press kit? Illustrated guide
Z.-W. Wang, C. Ye, Y. Zhong, J. Zhao, B. Zhang, X. Ye et al. · DOI: 10.64898/2026.10.29.762709 · Summary page
Why cover this story this week?
A parasitoid cuts the alarm line
Aphids can warn their neighbors of danger by releasing an alarm pheromone. A preprint shows that the parasitoid wasp Ephedrus lacertosus can suppress that warning during egg laying. Venom proteomics and RNA interference identified functionally overlapping venom proteins, Apbt1 and Apbt2, that block pheromone release and prevent the escape responses it would normally trigger.
Reducing production of these proteins restored aphid alarm behavior and lowered parasitism success across multiple host species. The result shifts attention from how parasites manipulate individual victims to how they disrupt interactions among hosts. Collective defense depends on communication, and this wasp attacks that dependency directly; whether comparable mechanisms are widespread remains an open question.
Editorial context written by AI from abstracts, not independent scientific validation. The kit and its verified quotes rely on the source paper, not on this letter.
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