Publicação
Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index
| Resumo: | Beyond their undeniable role, nowadays we also must look to seagrass beds as endangered environmentswith urgent monitoring and conservation needs. In the present study Z. noltii photochemical performanceof under different stages of development/recovery was assessed and its results applied in the develop-ment of a photochemical stress index (PSI) to classify and efficiently assess the physiological conditionof seagrass beds. In order to investigate deeper into this metabolic network the JIP-test was applied,allowing to identify the reasons underlying the first signs of stress. Less developed beds low connectiv-ity between PS II antennae leading inevitably to an impairment of the energetic transport. Associatedto this also the quinone pool showed severe depletion both in number and function. Alongside the K-step presence in the Kautsky curve points to severe damage at donor side of the PS II, where the OxygenEvolving Complexes (OECs) are located. All these negative impacts increase the quantum yield of the non-photochemical reactions in stressed/less developed seagrass beds. In sum, more developed beds showproportionally higher light use efficiencies promoted by a higher number of oxidized reaction centrescoupled with an enhanced capacity in using the generated electron potential and relatively lower energydissipations. Coupling all the photochemical into an Integrated Biomarker Response (IBR) approach, aphotochemical stress index (PSI) was produced. The PSI showed that more developed sites present lowerphotochemical stress values with inverse significant correlation with biomass coverage, reinforcing theapplicability of this non-invasive index as a reflex of the seagrass bed development stage. |
|---|---|
| Autores principais: | Duarte, Bernardo |
| Outros Autores: | Pedro, Sílvia; Marques, J. C.; Adão, Helena; Caçador, Isabel |
| Assunto: | Seagrasses Photochemistry Recovery IBR |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866809106278383616 |
|---|---|
| author | Duarte, Bernardo |
| author2 | Pedro, Sílvia Marques, J. C. Adão, Helena Caçador, Isabel |
| author2_role | author author author author |
| author_facet | Duarte, Bernardo Pedro, Sílvia Marques, J. C. Adão, Helena Caçador, Isabel |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Duarte, Bernardo\",\"Person.identifier.orcid\":\"0000-0003-1914-7435\"},{\"Person.name\":\"Pedro, Sílvia\"},{\"Person.name\":\"Marques, J. C.\",\"Person.identifier.orcid\":\"0000-0001-8865-8189\"},{\"Person.name\":\"Adão, Helena\"},{\"Person.name\":\"Caçador, Isabel\",\"Person.identifier.orcid\":\"0000-0002-4475-6091\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Duarte, Bernardo Pedro, Sílvia Marques, J. C. Adão, Helena Caçador, Isabel |
| datacite.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-06-25T09:43:06Z |
| datacite.date.embargoed.fl_str_mv | 2019-06-25T09:43:06Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Seagrasses Photochemistry Recovery IBR |
| datacite.titles.title.fl_str_mv | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Duarte, Bernardo Pedro, Sílvia Marques, J. C. Adão, Helena Caçador, Isabel |
| dc.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-06-25T09:43:06Z |
| dc.date.embargoed.fl_str_mv | 2019-06-25T09:43:06Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10451/38783 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Seagrasses Photochemistry Recovery IBR |
| dc.title.fl_str_mv | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Beyond their undeniable role, nowadays we also must look to seagrass beds as endangered environmentswith urgent monitoring and conservation needs. In the present study Z. noltii photochemical performanceof under different stages of development/recovery was assessed and its results applied in the develop-ment of a photochemical stress index (PSI) to classify and efficiently assess the physiological conditionof seagrass beds. In order to investigate deeper into this metabolic network the JIP-test was applied,allowing to identify the reasons underlying the first signs of stress. Less developed beds low connectiv-ity between PS II antennae leading inevitably to an impairment of the energetic transport. Associatedto this also the quinone pool showed severe depletion both in number and function. Alongside the K-step presence in the Kautsky curve points to severe damage at donor side of the PS II, where the OxygenEvolving Complexes (OECs) are located. All these negative impacts increase the quantum yield of the non-photochemical reactions in stressed/less developed seagrass beds. In sum, more developed beds showproportionally higher light use efficiencies promoted by a higher number of oxidized reaction centrescoupled with an enhanced capacity in using the generated electron potential and relatively lower energydissipations. Coupling all the photochemical into an Integrated Biomarker Response (IBR) approach, aphotochemical stress index (PSI) was produced. The PSI showed that more developed sites present lowerphotochemical stress values with inverse significant correlation with biomass coverage, reinforcing theapplicability of this non-invasive index as a reflex of the seagrass bed development stage. |
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| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/a938f371-2f9a-450d-8a2c-4f0fd1bc994b/download |
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| identifier.url.fl_str_mv | http://hdl.handle.net/10451/38783 |
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| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
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| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10451/38783 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Duarte, Bernardo Duarte, Bernardo https://www.ciencia-id.pt/731E-093F-D4C8 731E-093F-D4C8 http://orcid.org/0000-0003-1914-7435 0000-0003-1914-7435 Pedro, Sílvia Marques, J. C. Marques, J. C. https://www.ciencia-id.pt/9F11-7A1E-BEEC 9F11-7A1E-BEEC http://orcid.org/0000-0001-8865-8189 0000-0001-8865-8189 Adão, Helena Caçador, Isabel Caçador, Isabel https://www.ciencia-id.pt/631C-9FFE-CA81 631C-9FFE-CA81 http://orcid.org/0000-0002-4475-6091 0000-0002-4475-6091 |
| publishDate | 2017 |
| reponame_str | Repositório da Universidade de Lisboa |
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| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engpt_PTBeyond their undeniable role, nowadays we also must look to seagrass beds as endangered environmentswith urgent monitoring and conservation needs. In the present study Z. noltii photochemical performanceof under different stages of development/recovery was assessed and its results applied in the develop-ment of a photochemical stress index (PSI) to classify and efficiently assess the physiological conditionof seagrass beds. In order to investigate deeper into this metabolic network the JIP-test was applied,allowing to identify the reasons underlying the first signs of stress. Less developed beds low connectiv-ity between PS II antennae leading inevitably to an impairment of the energetic transport. Associatedto this also the quinone pool showed severe depletion both in number and function. Alongside the K-step presence in the Kautsky curve points to severe damage at donor side of the PS II, where the OxygenEvolving Complexes (OECs) are located. All these negative impacts increase the quantum yield of the non-photochemical reactions in stressed/less developed seagrass beds. In sum, more developed beds showproportionally higher light use efficiencies promoted by a higher number of oxidized reaction centrescoupled with an enhanced capacity in using the generated electron potential and relatively lower energydissipations. Coupling all the photochemical into an Integrated Biomarker Response (IBR) approach, aphotochemical stress index (PSI) was produced. The PSI showed that more developed sites present lowerphotochemical stress values with inverse significant correlation with biomass coverage, reinforcing theapplicability of this non-invasive index as a reflex of the seagrass bed development stage.application/pdfpt_PTZostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress indexPersonalDuarte, BernardoDSpacehttp://dspace.org/items/a72f0f40-c224-49ad-ba21-ebb5f9aab09cDSpacehttp://dspace.org/items/a72f0f40-c224-49ad-ba21-ebb5f9aab09cDuarteBernardoCiência IDhttps://www.ciencia-id.pt731E-093F-D4C8ORCIDhttp://orcid.org0000-0003-1914-7435Researcher IDhttps://www.researcherid.comH-2001-2011Scopus Author IDhttps://www.scopus.com20734149900Pedro, SílviaPersonalMarques, J. C.DSpacehttp://dspace.org/items/97130a55-0383-4d1b-8d73-4a5ca889e529DSpacehttp://dspace.org/items/97130a55-0383-4d1b-8d73-4a5ca889e529MARQUESJOÃO CARLOSCiência IDhttps://www.ciencia-id.pt9F11-7A1E-BEECORCIDhttp://orcid.org0000-0001-8865-8189Researcher IDhttps://www.researcherid.comL-9478-2014Scopus Author IDhttps://www.scopus.com7203032961Scopus Author IDhttps://www.scopus.com55211851600Adão, HelenaPersonalCaçador, IsabelDSpacehttp://dspace.org/items/02ecb390-88b9-4e2f-8690-eba66c3b5311DSpacehttp://dspace.org/items/02ecb390-88b9-4e2f-8690-eba66c3b5311CaçadorIsabelCiência IDhttps://www.ciencia-id.pt631C-9FFE-CA81ORCIDhttp://orcid.org0000-0002-4475-6091Researcher IDhttps://www.researcherid.comC-2618-2012Scopus Author IDhttps://www.scopus.com6602533871Scopus Author IDhttps://www.scopus.com55126637700HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf1470-160XDOIIsPartOf10.1016/j.ecolind.2017.01.0232019-06-25T09:43:06Z20172017-01-01T00:00:00ZHandlehttp://hdl.handle.net/10451/38783http://purl.org/coar/access_right/c_16ecrestricted accessSeagrassesPhotochemistryRecoveryIBR2924275 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/a938f371-2f9a-450d-8a2c-4f0fd1bc994b/downloadEcological Indicators76219229 |
| spellingShingle | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index Duarte, Bernardo Seagrasses Photochemistry Recovery IBR |
| status | SINGLETON |
| subject.fl_str_mv | Seagrasses Photochemistry Recovery IBR |
| title | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| title_full | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| title_fullStr | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| title_full_unstemmed | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| title_short | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| title_sort | Zostera noltii development probing using chlorophyll a transient analysis (JIP-test) under field conditions: Integrating physiological insights into a photochemical stress index |
| topic | Seagrasses Photochemistry Recovery IBR |
| topic_facet | Seagrasses Photochemistry Recovery IBR |
| url | http://hdl.handle.net/10451/38783 |
| visible | 1 |