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Photoacclimation strategies in northeastern Atlantic seagrasses: Integrating responses across plant organizational levels

2018-10Journal article Open access
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dc.contributor.authorSchubert, Nadine
dc.contributor.authorFreitas, Cátia
dc.contributor.authorSilva, André
dc.contributor.authorCosta, Monya
dc.contributor.authorBarrote, Isabel
dc.contributor.authorHorta, Paulo A.
dc.contributor.authorRodrigues, Ana Cláudia
dc.contributor.authorSantos, Rui
dc.contributor.authorSilva, João
dc.date.accessioned2018-12-07T14:58:03Z
dc.date.available2018-12-07T14:58:03Z
dc.date.issued2018-10
dc.description.abstractSeagrasses live in highly variable light environments and adjust to these variations by expressing acclimatory responses at different plant organizational levels (meadow, shoot, leaf and chloroplast level). Yet, comparative studies, to identify species' strategies, and integration of the relative importance of photoacclimatory adjustments at different levels are still missing. The variation in photoacclimatory responses at the chloroplast and leaf level were studied along individual leaves of Cymodocea nodosa, Zostera marina and Z. noltei, including measurements of variable chlorophyll fluorescence, photosynthesis, photoprotective capacities, non-photochemical quenching and D1-protein repair, and assessments of variation in leaf anatomy and chloroplast distribution. Our results show that the slower-growing C. nodosa expressed rather limited physiological and biochemical adjustments in response to light availability, while both species of faster-growing Zostera showed high variability along the leaves. In contrast, the inverse pattern was found for leaf anatomical adjustments in response to light availability, which were more pronounced in C. nodosa. This integrative plant organizational level approach shows that seagrasses differ in their photoacclimatory strategies and that these are linked to the species' life history strategies, information that will be critical for predicting the responses of seagrasses to disturbances and to accordingly develop adequate management strategies.
dc.description.sponsorshipFundacao para a Ciencia e Tecnologia (FCT), Portugal [PTDC/MAR-EST/4257/2014]
dc.identifier.doi10.1038/s41598-018-33259-4
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.1/11830
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNature Publishing Group
dc.subjectZostera-Marina L
dc.subjectLeaf Life-Span
dc.subjectThalassia-Testudinum
dc.subjectPosidonia-Oceanica
dc.subjectCymodocea-Nodosa
dc.subjectPhotosynthetic Characteristics
dc.subjectLight-Absorption
dc.subjectIn-Situ
dc.subjectSpectral Quality
dc.subjectGene-Expression
dc.titlePhotoacclimation strategies in northeastern Atlantic seagrasses: Integrating responses across plant organizational levels
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage14825
oaire.citation.titleScientific Reports
oaire.citation.volume8
person.familyNameSchubert
person.familyNameFreitas
person.familyNameCosta
person.familyNameBarrote
person.familyNameSantos
person.familyNameSilva
person.givenNameNadine
person.givenNameCátia
person.givenNameMonya
person.givenNameIsabel
person.givenNameRui
person.givenNameJoão
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person.identifier.ridB-4168-2008
person.identifier.ridJ-7874-2013
person.identifier.scopus-author-id15623791900
person.identifier.scopus-author-id8094380800
person.identifier.scopus-author-id8659654200
person.identifier.scopus-author-id7201375018
person.identifier.scopus-author-id7403023547
rcaap.rightsopenAccess
rcaap.typearticle
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