Algal-fungal mutualism: cell recognition and maintenance of the symbiotic status of lichens

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dc.contributor.authorDíaz, E. M.
dc.contributor.authorSánchez Elordi, Elena
dc.contributor.authorSantiago, Rocío
dc.contributor.authorVicente Córdoba, Carlos
dc.contributor.authorLegaz González, María Estrella
dc.date.accessioned2023-06-17T22:24:21Z
dc.date.available2023-06-17T22:24:21Z
dc.date.issued2016-08-22
dc.description.abstractLichens are specific symbiotic associations between photosynthetic algae or cyanobacteria and heterotrophic fungi forming a double entity in which both components coexist. Specificity required for the lichen establishment can be defined in this context as the preferential, but not exclusive, association of a biont with another, since the algal factor susceptible to be recognized is an inducible protein. Recognition of compatible algal cells is performed by specific lectins produced and secreted by the potential mycobiont. Some lectins from phycolichens and cyanolichens are glycosylated arginases which bind to an algal cell wall receptor, identified as a a-1, 4-polygalactosylated urease. However, other ligands exist which bind other lectins specific for mannose or glucose. This implies that, after recognition of a potential, compatible partner, other fungal lectins could determine the final success of the association. Since the fungus can parasitize non - recognized partners during the development of the association, the success after the first contact needs of a set of algal cells, the number of which was sufficient to prevent that the death of a certain number of them makes fail the symbiosis. Fungal lectins act as chemo tactic factors in such a way that algae and cyanobacteria move towards the hyphae, to acquire that critical size of the colony, by means of successive contractions and relaxation of the actomyosin cytoskeleton in absence of any motile appendages.
dc.description.departmentDepto. de Genética, Fisiología y Microbiología
dc.description.facultyFac. de Ciencias Biológicas
dc.description.refereedTRUE
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/46901
dc.identifier.issn2378-931X
dc.identifier.officialurlhttp://www.jscimedcentral.com/VeterinaryMedicine/veterinarymedicine-3-1052.pdf
dc.identifier.urihttps://hdl.handle.net/20.500.14352/18468
dc.issue.number3
dc.journal.titleJournal of Veterinary Medicine and Research
dc.language.isoeng
dc.publisherJSciMed Central
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu582.29
dc.subject.keywordActin
dc.subject.keywordAlga
dc.subject.keywordChemotactism
dc.subject.keywordCytoskeleton
dc.subject.keywordFungus
dc.subject.keywordLectin
dc.subject.keywordLichens
dc.subject.keywordRecognition
dc.subject.keywordSpecificity
dc.subject.ucmBotánica (Biología)
dc.subject.ucmFisiología vegetal (Biología)
dc.subject.unesco2417.03 Botánica General
dc.subject.unesco2417.19 Fisiología Vegetal
dc.titleAlgal-fungal mutualism: cell recognition and maintenance of the symbiotic status of lichens
dc.typejournal article
dc.volume.number3
dspace.entity.typePublication
relation.isAuthorOfPublication994235e8-ff76-40bb-a747-b99e53e50c5a
relation.isAuthorOfPublication58c3cef9-7fee-4e9c-83f6-8126202101e9
relation.isAuthorOfPublication.latestForDiscovery994235e8-ff76-40bb-a747-b99e53e50c5a
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