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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Torres, Priscila B. [1] ; Chow, Fungyi [1] ; Ferreira, Marcelo J. P. [1] ; dos Santos, Deborah Y. A. C. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Biociencias, Dept Bot, Rua Matao 277, BR-05508090 Sao Paulo, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF APPLIED PHYCOLOGY; v. 28, n. 3, p. 2035-2040, JUN 2016.
Citações Web of Science: 7
Resumo

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)

Processo FAPESP: 10/02948-3 - Fisiologia integrativa de macroalgas: estudo exploratório da biodiversidade química
Beneficiário:Fanly Fungyi Chow Ho
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 13/50731-1 - Biodiversidade fisiológica e química de macroalgas ecológica e economicamente importantes
Beneficiário:Fanly Fungyi Chow Ho
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Regular