Chemical cues and molecular mechanisms suspected in abiotic stress communication

Li, Jiao ORCID: https://orcid.org/0000-0002-5716-5514, Feugere, Lauric ORCID: https://orcid.org/0000-0002-4984-9350, Hardege, Joerg ORCID: https://orcid.org/0000-0002-7815-3969, Vámos, Sofia ORCID: https://orcid.org/0009-0001-9354-9603 et Wollenberg Valero, Katharina C. ORCID: https://orcid.org/0000-0001-8858-1804 (2026). Chemical cues and molecular mechanisms suspected in abiotic stress communication. Journal of Experimental Biology, 229 (supp 1). (jeb251804).

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Résumé

For nearly a century, scientists have tried to resolve the sensory physiology of chemical communication caused by predation stress. Only recently have we evidenced that abiotic stressors from a changing world, such as heat and ocean acidification, also trigger chemical communication between aquatic organisms – which we dubbed abiotic stress communication. Generally, the behavioural and physiological response to stress-induced cues are well understood, whereas the molecular mechanisms – cue identities, pathways of release, and perception – of this stress communication remain unresolved. Here, we propose a framework to organize the existing evidence for candidate mechanisms involved in abiotic stress-induced chemical communication, focusing on heat and acidification as two major abiotic stressors with environmental relevance. Drawing on transcriptomic, metabolomic and behavioural evidence, we propose that stressor-specific communication likely involves multiple cues and parallel routes rather than a single mechanism, such as membrane-related processes. We call for integrative work that links -omics with chemical profiling and ecological function assays to uncover the mechanisms of abiotic stress communication.

Type de document :	Article
Validation par les pairs :	Oui
Mots-clés :	Transcriptomique ; Métabolomique ; Biologie sensorielle ; Communication chimique / Transcriptomics ; Metabolomics ; Sensory biology ; Chemical communication .
Départements et unités départementales :	Département de biologie, chimie et géographie
Date de dépôt :	28 oct. 2026 18:19
Dernière modification :	28 oct. 2026 18:19
URI :	https://semaphore.uqar.ca/id/eprint/3700