Abstract
Animals have developed scent-triggered avoidance for threat evasion and survival. Here, we found that aphids exhibit a unique heat-guided herbivore-avoidance mechanism. We identified the TRP channel ApisTRPA1 in Acyrthosiphon pisum as a key receptor for sensing rapid temperature increases. Two isoforms of ApisTRPA1, ApisTRPA1-A and ApisTRPA1-B, are both expressed in neurons located in the primary rhinaria, which are essential for acute heat detection. Among them, ApisTRPA1-B exhibits a stronger response to temperature gradients. These findings shed light on aphid physiological adaptations to thermal cues and may inform the development of eco-friendly aphid management strategies.
| Original language | English |
|---|---|
| Pages (from-to) | 3088-3101 |
| Number of pages | 14 |
| Journal | Science China Life Sciences |
| Volume | 68 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2025 |
Bibliographical note
Publisher Copyright:© Science China Press 2025.
Keywords
- Acyrthosiphon pisum
- heat avoidance
- pre-encounter escape behavior
- thermal sense
- thermosensitive neuron
- transient receptor potential A1
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