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Increased vulnerability of Zostera noltii to stress caused by low light and elevated ammonium levels under phosphate deficiency

2008Journal article Open Access
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dc.contributor.authorBrun, Fernando G.
dc.contributor.authorOlive, Irene
dc.contributor.authorMalta, Erik-jan
dc.contributor.authorVergara, Juan J.
dc.contributor.authorHernandez, Ignacio
dc.contributor.authorLucas Perez-Llorens, J.
dc.date.accessioned2018-12-07T14:58:36Z
dc.date.available2018-12-07T14:58:36Z
dc.date.issued2008
dc.description.abstractThe effects of light and ammonium levels on net production, fluorescence parameters and non-structural carbohydrates of the seagrass Zostera noltii under different phosphate conditions were studied. A fully factorial design was used with light (low/high levels), ammonium supply and phosphate preculture conditions of the plants as the experimental variables. Both ammonium supply and low light caused negative and synergistic effects on net production, while ammonium toxicity was more severe at high light levels; in this case, it was independent of the non-structural carbohydrate (sucrose and starch) content. Preculturing of plant with added phosphate alleviated the ammonium toxicity, and also attenuated the negative production balance of plants grown at low light levels. The results indicated that phosphate preculture ameliorated the plant's short-term response against the assayed stressors (low light, high ammonium) significantly. An overall consumption of non-structural carbohydrates in response to environmental stressors was recorded throughout the experiment, indicating the importance of carbon and phosphorus reserves to cope with adverse conditions. ln addition, phosphate deficiency increased the vulnerability of plants, which could have negative ecological consequences for seagrass species thriving under phosphate deficiency conditions, or in developing seagrass transplantation programs.
dc.description.sponsorshipMarie Curie fellowship [MEIF-CT-2005-515071]; European Reintegration Grant [MERG-CT-2007-205675]; Ministerio de Educacion y Ciencia; Spanish Project [CTM2005-00395/MAR]
dc.identifier.doi10.3354/meps07512
dc.identifier.issn0171-8630
dc.identifier.urihttp://hdl.handle.net/10400.1/12114
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInter-Research
dc.subjectSeagrass posidonia oceanica
dc.subjectColumn nitrate enrichment
dc.subjectCymodocea nodosa
dc.subjectNutrient content
dc.subjectGrowth
dc.subjectNitrogen
dc.subjectMarina
dc.subjectCarbon
dc.subjectPlants
dc.subjectPhotosynthesis
dc.titleIncreased vulnerability of Zostera noltii to stress caused by low light and elevated ammonium levels under phosphate deficiency
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage75
oaire.citation.startPage67
oaire.citation.titleMarine Ecology Progress Series
oaire.citation.volume365
person.familyNameMalta
person.givenNameErik-jan
person.identifier.orcid0000-0002-3934-3807
person.identifier.ridF-2485-2014
person.identifier.scopus-author-id7003607705
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication92920db9-fc6b-48cc-962e-4e5ee8441cd7
relation.isAuthorOfPublication.latestForDiscovery92920db9-fc6b-48cc-962e-4e5ee8441cd7

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