The influence of environmental features in the content of mycosporine-like amino acids in red marine algae along the Brazilian coast

© 2018 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 54(2018), 3 vom: 05. Juni, Seite 380-390
1. Verfasser: Briani, Bruno (VerfasserIn)
Weitere Verfasser: Sissini, Marina N, Lucena, Leidson A, Batista, Manuela B, Costa, Iara O, Nunes, José M C, Schmitz, Caroline, Ramlov, Fernanda, Maraschin, Marcelo, Korbee, Nathalie, Rörig, Leonardo, Horta, Paulo A, Figueroa, Félix L, Barufi, José B
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Brazil MAAs ecological response red seaweeds ultraviolet radiation Amino Acids
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520 |a Mycosporine-like amino acids (MAA) are ultraviolet screen substances synthesized by marine algae. The physiological function of these substances is related to cellular protection against UV radiation and as a protective mechanism against oxidative stress. These substances can be found mainly in the ocean, among red seaweeds. Its concentration in organisms has been related to ultraviolet radiation and availability of inorganic nitrogen in the environment. We start our study of MAA content in different species to understand if environmental conditions influence the concentration of MAAs in red seaweeds. The Brazilian coast presents abiotic factors that interact to create different physical-chemical features in the environment. We collected 441 samples from 39 species of red seaweed easily found in the intertidal zone, in low tide, during the summer of 2015. The sampling encompassed a latitudinal gradient (3° S to 28°5' S) at 23 points along the coast. We quantified and identified the content of MAAs in species through the method of high performance liquid chromatography. We detected for the first time the occurrence of MAAs in certain species of red algae that have not been reported to contain MAAs before. We confirmed that some environmental factors influenced the content of MAAs. Enhanced MAA contents, for example, were found in environments with a basic pH, a high ultraviolet index, and high concentrations of phosphate and nitrate. Salinity, dissolved oxygen and variations of sea surface temperature also influenced, in a secondary way, MAA content in algae in their natural environments 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Brazil 
650 4 |a MAAs 
650 4 |a ecological response 
650 4 |a red seaweeds 
650 4 |a ultraviolet radiation 
650 7 |a Amino Acids  |2 NLM 
700 1 |a Sissini, Marina N  |e verfasserin  |4 aut 
700 1 |a Lucena, Leidson A  |e verfasserin  |4 aut 
700 1 |a Batista, Manuela B  |e verfasserin  |4 aut 
700 1 |a Costa, Iara O  |e verfasserin  |4 aut 
700 1 |a Nunes, José M C  |e verfasserin  |4 aut 
700 1 |a Schmitz, Caroline  |e verfasserin  |4 aut 
700 1 |a Ramlov, Fernanda  |e verfasserin  |4 aut 
700 1 |a Maraschin, Marcelo  |e verfasserin  |4 aut 
700 1 |a Korbee, Nathalie  |e verfasserin  |4 aut 
700 1 |a Rörig, Leonardo  |e verfasserin  |4 aut 
700 1 |a Horta, Paulo A  |e verfasserin  |4 aut 
700 1 |a Figueroa, Félix L  |e verfasserin  |4 aut 
700 1 |a Barufi, José B  |e verfasserin  |4 aut 
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