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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Mycosporine-like amino acids from Gracilariopsis tenuifrons (Gracilariales, Rhodophyta) and its variation under high light

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Torres, Priscila B. [1] ; Chow, Fungyi [1] ; Ferreira, Marcelo J. P. [1] ; dos Santos, Deborah Y. A. C. [1]
Total Authors: 4
[1] Univ Sao Paulo, Inst Biociencias, Dept Bot, Rua Matao 277, BR-05508090 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF APPLIED PHYCOLOGY; v. 28, n. 3, p. 2035-2040, JUN 2016.
Web of Science Citations: 7

Mycosporine-like amino acids (MAAs) have been identified as photoprotective agents for photosynthetic organisms, mainly against ultraviolet radiation. However, the role of these compounds associated with high intensity of photosynthetically active radiation (PAR) is not completely understood. In the present study, the MAA profile of laboratory-cultivated Gracilariopsis tenuifrons was investigated at three PAR levels. Ethanolic extract afforded a mixture of five components. Four of them were identified as asterina-330, palythinol, palythene, and usujirene. This is the first report of usujirene for Gracilariaceae. Despite the fact that the PAR increase did not alter the qualitative composition of MAAs, a clear correlation between palythinol amount and irradiance during the 7-day experiment was detected. This increase of palythinol correlated to high PAR supports the hypothesis of photoprotection related to these compounds. (AU)

FAPESP's process: 13/50731-1 - Physiological and chemical biodiversity of macroalgae ecologically and economically important
Grantee:Fanly Fungyi Chow Ho
Support type: BIOTA-FAPESP Program - Regular Research Grants
FAPESP's process: 10/02948-3 - Integrative physiology in macroalgae: exploratory study of chemical biodiversity
Grantee:Fanly Fungyi Chow Ho
Support type: Regular Research Grants