Release of Volatile Aldehydes by the Brown Algal Kelp <i>Laminaria digitata</i> in Response to Both Biotic and Abiotic Stress

Goulitquer, Sophie; Ritter, Andrés; Thomas, François; Ferec, C.; Salaün, Jean‐Pierre; Potin, Philippe

doi:10.1002/cbic.200900004

Cited by 34 publications

(50 citation statements)

References 48 publications

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“…lactuca resulted in signifi cant decrease in n -3 and n -6 PUFAs with a concomitant increase in SFAs (Kumar et al , 2011). Recently, the release of polyunsaturated aldehyde (PUA) class oxylipins such as (2E,4E)-octa-2,4,7-trienal and (2E,4E,7Z)-deca-2,4,7-trienal as signal molecules related to defence mechanisms in response to various biotic and abiotic stress conditions has also been addressed (Goulitquer et al , 2009). …”

Section: Ultra Violet Radiation and Anthropogenic Activitiesmentioning

confidence: 99%

Algal lipids, fatty acids and sterols

Kumari

Kumar

Reddy

et al. 2013

Functional Ingredients From Algae for Foods and Nutraceuticals

117

102

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Section: Ultra Violet Radiation and Anthropogenic Activitiesmentioning

confidence: 99%

Algal lipids, fatty acids and sterols

Kumari

Kumar

Reddy

et al. 2013

Functional Ingredients From Algae for Foods and Nutraceuticals

117

102

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“…Systemy would operate either externally (detection in the water column of an eliciting signal generated in a stressed region of the thallus by a naïve region of the same individual, followed by a defense response), or internally via translocation. It could involve halogenated compounds (VHOC) or oxygenated species (aldehydes) which are produced as defense compounds in plantlets of L. digitata which are metabolically challenged [79,80] and thus are possible pheromone-like candidates, along with known elicitors (alginate hydrolysates) of this particular kelp.…”

Section: The Role Of Iodine In Brown Algaementioning

confidence: 99%

The Halogenated Metabolism of Brown Algae (Phaeophyta), Its Biological Importance and Its Environmental Significance

et al. 2010

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Brown algae represent a major component of littoral and sublittoral zones in temperate and subtropical ecosystems. An essential adaptive feature of this independent eukaryotic lineage is the ability to couple oxidative reactions resulting from exposure to sunlight and air with the halogenations of various substrates, thereby addressing various biotic and abiotic stresses i.e., defense against predators, tissue repair, holdfast adhesion, and protection against reactive species generated by oxidative processes. Whereas marine organisms mainly make use of bromine to increase the biological activity of secondary metabolites, some orders of brown algae such as Laminariales have also developed a striking capability to accumulate and to use iodine in physiological adaptations to stress. We review selected aspects of the halogenated metabolism of macrophytic brown algae in the light of the most recent results, which point toward novel functions for iodide accumulation in kelps and the importance of bromination in cell wall modifications and adhesion properties of brown algal propagules. The importance of halogen speciation processes ranges from microbiology to biogeochemistry, through enzymology, cellular biology and ecotoxicology.

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“…build-up of defense metabolites) or interplant conspecific elicitation [42]. Signal internalization (via COX-LOX enzymatic activation) and upregulation of defense-related genes may play a role in maintaining tissue-bound antibacterial defenses [14]. The rich repertoire of antibacterial or of biofilm-modulating responses of L. digitata has prompted us to investigate it as a model for the environment-friendly control of surface colonization by marine bacteria.…”

Section: Introductionmentioning

confidence: 99%