UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae

Detalhes bibliográficos
Autor(a) principal: Bautista-Saraiva, Anna Isabel N.
Data de Publicação: 2018
Outros Autores: Bonomi-Barufi, Jose, Figueroa, Felix L., Necchi, Orlando [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s40626-018-0113-6
http://hdl.handle.net/11449/164599
Resumo: Freshwater algae inhabiting shallow waters are most effectively affected by UV radiation. The aim of this study was to analyze the photosynthetic performance (parameters derived of chlorophyll fluorescence), chlorophyll a concentrations and the content of UV-absorbing compounds (mycosporine-like aminoacids-MAAs) in three tropical lotic macroalgae, Cladophora glomerata (Chlorophyta), Spirogyra sp. (Streptophyta) and Sirodotia delicatula (Rhodophyta) in response to UV radiation exposure under laboratory conditions. Experiments were performed under three treatments: (1) PAR (400-700 nm), P; (2) PAR + UVA (320-700 nm), PA; (3) PAR + UVA + UVB (280-700 nm), PAB. Cladophora glomerata and Spirogyra sp., typical sun-adapted lotic macroalgae, had distinct responses to UV radiation exposure. A more pronounced decrease of F (v)/F (m) and increase of NPQ under UVA than UVAB was observed, whereas chlorophyll a content was lower under UVAB in C. glomerata. Spirogyra sp. had a decrease of photosynthetic yields (Delta F/F (m)' and F (v)/F (m)) under PAR, indicating that UVAB radiation may have a positive effect on the photosynthetic apparatus. Surprisingly, S. delicatula, a shade-adapted alga, exhibited less sensitivity to UV exposure. These results suggest that the presence of MAAs (shinorine and palythine) in S. delicatula is a significant shield of protection against UV radiation.
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spelling UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgaeChlorophyll fluorescenceGreen algaePhotosynthesisRed algaeRadiationUV-absorbing substancesFreshwater algae inhabiting shallow waters are most effectively affected by UV radiation. The aim of this study was to analyze the photosynthetic performance (parameters derived of chlorophyll fluorescence), chlorophyll a concentrations and the content of UV-absorbing compounds (mycosporine-like aminoacids-MAAs) in three tropical lotic macroalgae, Cladophora glomerata (Chlorophyta), Spirogyra sp. (Streptophyta) and Sirodotia delicatula (Rhodophyta) in response to UV radiation exposure under laboratory conditions. Experiments were performed under three treatments: (1) PAR (400-700 nm), P; (2) PAR + UVA (320-700 nm), PA; (3) PAR + UVA + UVB (280-700 nm), PAB. Cladophora glomerata and Spirogyra sp., typical sun-adapted lotic macroalgae, had distinct responses to UV radiation exposure. A more pronounced decrease of F (v)/F (m) and increase of NPQ under UVA than UVAB was observed, whereas chlorophyll a content was lower under UVAB in C. glomerata. Spirogyra sp. had a decrease of photosynthetic yields (Delta F/F (m)' and F (v)/F (m)) under PAR, indicating that UVAB radiation may have a positive effect on the photosynthetic apparatus. Surprisingly, S. delicatula, a shade-adapted alga, exhibited less sensitivity to UV exposure. These results suggest that the presence of MAAs (shinorine and palythine) in S. delicatula is a significant shield of protection against UV radiation.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fed Inst Educ Sci & Technol Sao Paulo IFSP, Campus Votuporanga, BR-15503110 Votuporanga, SP, BrazilUniv Fed Santa Catarina, Dept Bot, Campus Trindade S-N, BR-88040900 Florianopolis, SC, BrazilMalaga Univ, Fac Sci, Dept Ecol, Campus Teatinos, E-29071 Malaga, SpainSao Paulo State Univ, Dept Bot & Zool, Rua Cristovao Colombo 2265, BR-15054000 S Jose Rio Preto, SP, BrazilSao Paulo State Univ, Dept Bot & Zool, Rua Cristovao Colombo 2265, BR-15054000 S Jose Rio Preto, SP, BrazilBrazilian Soc Plant PhysiologyFed Inst Educ Sci & Technol Sao Paulo IFSPUniversidade Federal de Santa Catarina (UFSC)Malaga UnivUniversidade Estadual Paulista (Unesp)Bautista-Saraiva, Anna Isabel N.Bonomi-Barufi, JoseFigueroa, Felix L.Necchi, Orlando [UNESP]2018-11-26T17:55:15Z2018-11-26T17:55:15Z2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article181-192application/pdfhttp://dx.doi.org/10.1007/s40626-018-0113-6Theoretical And Experimental Plant Physiology. Campinas: Brazilian Soc Plant Physiology, v. 30, n. 3, p. 181-192, 2018.2197-0025http://hdl.handle.net/11449/16459910.1007/s40626-018-0113-6WOS:000443472500003WOS000443472500003.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTheoretical And Experimental Plant Physiology0,493info:eu-repo/semantics/openAccess2023-10-22T06:09:58Zoai:repositorio.unesp.br:11449/164599Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:38:30.283338Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
title UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
spellingShingle UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
Bautista-Saraiva, Anna Isabel N.
Chlorophyll fluorescence
Green algae
Photosynthesis
Red algae
Radiation
UV-absorbing substances
title_short UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
title_full UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
title_fullStr UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
title_full_unstemmed UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
title_sort UV-radiation effects on photosynthesis, photosynthetic pigments and UV-absorbing substances in three species of tropical lotic macroalgae
author Bautista-Saraiva, Anna Isabel N.
author_facet Bautista-Saraiva, Anna Isabel N.
Bonomi-Barufi, Jose
Figueroa, Felix L.
Necchi, Orlando [UNESP]
author_role author
author2 Bonomi-Barufi, Jose
Figueroa, Felix L.
Necchi, Orlando [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Fed Inst Educ Sci & Technol Sao Paulo IFSP
Universidade Federal de Santa Catarina (UFSC)
Malaga Univ
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Bautista-Saraiva, Anna Isabel N.
Bonomi-Barufi, Jose
Figueroa, Felix L.
Necchi, Orlando [UNESP]
dc.subject.por.fl_str_mv Chlorophyll fluorescence
Green algae
Photosynthesis
Red algae
Radiation
UV-absorbing substances
topic Chlorophyll fluorescence
Green algae
Photosynthesis
Red algae
Radiation
UV-absorbing substances
description Freshwater algae inhabiting shallow waters are most effectively affected by UV radiation. The aim of this study was to analyze the photosynthetic performance (parameters derived of chlorophyll fluorescence), chlorophyll a concentrations and the content of UV-absorbing compounds (mycosporine-like aminoacids-MAAs) in three tropical lotic macroalgae, Cladophora glomerata (Chlorophyta), Spirogyra sp. (Streptophyta) and Sirodotia delicatula (Rhodophyta) in response to UV radiation exposure under laboratory conditions. Experiments were performed under three treatments: (1) PAR (400-700 nm), P; (2) PAR + UVA (320-700 nm), PA; (3) PAR + UVA + UVB (280-700 nm), PAB. Cladophora glomerata and Spirogyra sp., typical sun-adapted lotic macroalgae, had distinct responses to UV radiation exposure. A more pronounced decrease of F (v)/F (m) and increase of NPQ under UVA than UVAB was observed, whereas chlorophyll a content was lower under UVAB in C. glomerata. Spirogyra sp. had a decrease of photosynthetic yields (Delta F/F (m)' and F (v)/F (m)) under PAR, indicating that UVAB radiation may have a positive effect on the photosynthetic apparatus. Surprisingly, S. delicatula, a shade-adapted alga, exhibited less sensitivity to UV exposure. These results suggest that the presence of MAAs (shinorine and palythine) in S. delicatula is a significant shield of protection against UV radiation.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-26T17:55:15Z
2018-11-26T17:55:15Z
2018-09-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s40626-018-0113-6
Theoretical And Experimental Plant Physiology. Campinas: Brazilian Soc Plant Physiology, v. 30, n. 3, p. 181-192, 2018.
2197-0025
http://hdl.handle.net/11449/164599
10.1007/s40626-018-0113-6
WOS:000443472500003
WOS000443472500003.pdf
url http://dx.doi.org/10.1007/s40626-018-0113-6
http://hdl.handle.net/11449/164599
identifier_str_mv Theoretical And Experimental Plant Physiology. Campinas: Brazilian Soc Plant Physiology, v. 30, n. 3, p. 181-192, 2018.
2197-0025
10.1007/s40626-018-0113-6
WOS:000443472500003
WOS000443472500003.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Theoretical And Experimental Plant Physiology
0,493
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 181-192
application/pdf
dc.publisher.none.fl_str_mv Brazilian Soc Plant Physiology
publisher.none.fl_str_mv Brazilian Soc Plant Physiology
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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