Aldehyde perception induces specific molecular responses in Laminaria digitata and affects algal consumption by a specialist grazer

dc.contributor.authorXing, Qikun
dc.contributor.authorCabioch, Lea
dc.contributor.authorDesrut, Antoine
dc.contributor.authorLe Corguille, Gildas
dc.contributor.authorRousvoal, Sylvie
dc.contributor.authorDartevelle, Laurence
dc.contributor.authorRolland, Elodie
dc.contributor.authorGuitton, Yann
dc.contributor.authorPotin, Philippe
dc.contributor.authorMarkov, Gabriel V.
dc.contributor.authorFaugeron, Sylvain
dc.contributor.authorLeblanc, Catherine
dc.date.accessioned2025-01-20T20:06:03Z
dc.date.available2025-01-20T20:06:03Z
dc.date.issued2023
dc.description.abstractIn the marine environment, distance signaling based on water-borne cues occurs during interactions between macroalgae and herbivores. In the brown alga Laminaria digitata from North-Atlantic Brittany, oligoalginates elicitation or grazing was shown to induce chemical and transcriptomic regulations, as well as emission of a wide range of volatile aldehydes, but their biological roles as potential defense or warning signals in response to herbivores remain unknown. In this context, bioassays using the limpet Patella pellucida and L. digitata were carried out for determining the effects of algal transient incubation with 4-hydroxyhexenal (4-HHE), 4-hydroxynonenal (4-HNE) and dodecadienal on algal consumption by grazers. Simultaneously, we have developed metabolomic and transcriptomic approaches to study algal molecular responses after treatments of L. digitata with these chemical compounds. The results indicated that, unlike the treatment of the plantlets with 4-HNE or dodecadienal, treatment with 4-HHE decreases algal consumption by herbivores at 100 ng.ml(-1). Moreover, we showed that algal metabolome was significantly modified according to the type of aldehydes, and more specifically the metabolite pathways linked to fatty acid degradation. RNAseq analysis further showed that 4-HHE at 100 ng.ml(-1) can activate the regulation of genes related to oxylipin signaling pathways and specific responses, compared to oligoalginates elicitation. As kelp beds constitute complex ecosystems consisting of habitat and food source for marine herbivores, the algal perception of specific aldehydes leading to targeted molecular regulations could have an important biological role on kelps/grazers interactions.
dc.fuente.origenWOS
dc.identifier.doi10.1111/tpj.16450
dc.identifier.eissn1365-313X
dc.identifier.issn0960-7412
dc.identifier.urihttps://doi.org/10.1111/tpj.16450
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91726
dc.identifier.wosidWOS:001060488900001
dc.issue.numero6
dc.language.isoen
dc.pagina.final1632
dc.pagina.inicio1617
dc.revistaPlant journal
dc.rightsacceso restringido
dc.subjectBrown algae
dc.subjectbiotic interactions
dc.subjectdefense and signaling responses
dc.subjecttranscriptomics
dc.subjectmetabolomics
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.titleAldehyde perception induces specific molecular responses in Laminaria digitata and affects algal consumption by a specialist grazer
dc.typeartículo
dc.volumen116
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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