{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T19:36:00Z","timestamp":1767987360797,"version":"3.49.0"},"reference-count":24,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,9,14]],"date-time":"2021-09-14T00:00:00Z","timestamp":1631577600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["POCI-01-0145-FEDER-029818"],"award-info":[{"award-number":["POCI-01-0145-FEDER-029818"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UID\/Multi\/04423\/2019"],"award-info":[{"award-number":["UID\/Multi\/04423\/2019"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/05748\/2020"],"award-info":[{"award-number":["UIDB\/05748\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDP\/05748\/2020"],"award-info":[{"award-number":["UIDP\/05748\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFHR\/BD\/143268\/2019"],"award-info":[{"award-number":["SFHR\/BD\/143268\/2019"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/115643\/2016"],"award-info":[{"award-number":["SFRH\/BD\/115643\/2016"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/07826\/2020"],"award-info":[{"award-number":["SFRH\/BD\/07826\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/114935\/2016"],"award-info":[{"award-number":["SFRH\/BD\/114935\/2016"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>During high tide, macroalgae are submersed, facing adequate environmental conditions, however, at low tide, these species can be exposed to high UV radiation and desiccation, leading to an overproduction of reactive oxygen species, causing oxidative stress. Since intertidal organisms present differential sensitivity to abiotic fluctuations, this study aimed to evaluate the physiological responses [photosynthetic pigments, hydrogen peroxide (H2O2), lipid peroxidation (LP), and thiols and proline] of three macroalgae, from different intertidal levels, towards tidal regimes. Samples of Pelvetia canaliculata, Ascophyllum nodosum, and Fucus serratus were collected from beaches located on the southern limit of distribution in periods of potential stress (Summer and Spring), under low and high tide. The photosynthetic pigments of P. canaliculata and F. serratus were generally higher during low tide, and the oxidative damage evidenced by H2O2 and LP increased in the Summer, while A. nodosum showed greater oxidative damage in the Spring. While thiol content did not change, proline levels were species- and tidal-specific among sampling dates. P. canaliculata presented higher resilience to unfavorable conditions, while F. serratus was the most sensitive species. The physiological responses analyzed were species-specific, pointing to the high susceptibility of low intertidal organisms to expected extreme climatic events.<\/jats:p>","DOI":"10.3390\/plants10091892","type":"journal-article","created":{"date-parts":[[2021,9,14]],"date-time":"2021-09-14T21:47:21Z","timestamp":1631656041000},"page":"1892","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Fucoid Macroalgae Have Distinct Physiological Mechanisms to Face Emersion and Submersion Periods in Their Southern Limit of Distribution"],"prefix":"10.3390","volume":"10","author":[{"given":"Maria","family":"Martins","sequence":"first","affiliation":[{"name":"GreenUPorto\u2014Sustainable Agrifood Production Research Centre and INOV4AGRO, Biology Department, Faculty of Sciences University of Porto (FCUP), Rua do Campo Alegre, 4149-007 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3330-2024","authenticated-orcid":false,"given":"Cristiano","family":"Soares","sequence":"additional","affiliation":[{"name":"Biology Department, Faculty of Sciences University of Porto (FCUP), Rua do Campo Alegre, 4149-007 Porto, Portugal"}]},{"given":"In\u00eas","family":"Figueiredo","sequence":"additional","affiliation":[{"name":"Biology Department, Faculty of Sciences University of Porto (FCUP), Rua do Campo Alegre, 4149-007 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4450-3596","authenticated-orcid":false,"given":"Bruno","family":"Sousa","sequence":"additional","affiliation":[{"name":"GreenUPorto\u2014Sustainable Agrifood Production Research Centre and INOV4AGRO, Biology Department, Faculty of Sciences University of Porto (FCUP), Rua do Campo Alegre, 4149-007 Porto, Portugal"}]},{"given":"Ana Catarina","family":"Torres","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Novo Edif\u00edcio do Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9231-0553","authenticated-orcid":false,"given":"Isabel","family":"Sousa-Pinto","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Novo Edif\u00edcio do Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal"}]},{"given":"Puri","family":"Veiga","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Novo Edif\u00edcio do Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1106-6035","authenticated-orcid":false,"given":"Marcos","family":"Rubal","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Novo Edif\u00edcio do Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7756-5243","authenticated-orcid":false,"given":"Fernanda","family":"Fidalgo","sequence":"additional","affiliation":[{"name":"GreenUPorto\u2014Sustainable Agrifood Production Research Centre and INOV4AGRO, Biology Department, Faculty of Sciences University of Porto (FCUP), Rua do Campo Alegre, 4149-007 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/B978-0-12-408062-1.00004-4","article-title":"Chapter Four-Salinity and Desiccation Induced Oxidative Stress Acclimation in Seaweeds","volume":"Volume 71","author":"Bourgougnon","year":"2014","journal-title":"Advances in Botanical Research"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1111\/j.0022-3646.1996.00197.x","article-title":"Stress Tolerance in Intertidal Seaweeds","volume":"32","author":"Davison","year":"1996","journal-title":"J. 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