Open AccessMycosporine‐2‐glycine is the major mycosporine‐like amino acid in a unicellular cyanobacterium ( Euhalothece sp.) isolated from a gypsum crust in a hypersaline saltern pond
Author(s) -
Kedar Laura,
Kashman Yoel,
Oren Aharon
Publication year - 2002
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2002.tb11087.x
Subject(s) - cyanobacteria , glycine , gypsum , mass spectrometry , amino acid , crust , chemistry , botany , environmental chemistry , biology , biochemistry , geology , chromatography , bacteria , geochemistry , paleontology , genetics
Mycosporine‐like amino acids (MAAs) were extracted from a unicellular cyanobacterium ( Euhalothece sp.) isolated from a gypsum crust on the bottom of a hypersaline saltern pond in Eilat, Israel. When grown at high light intensities, this isolate contained high concentrations of two MAAs, one showing maximum optical density at 331 nm and one at 362 nm. The compound absorbing at 331 nm was purified by preparative high performance liquid chromatography, and its structure was elucidated by one‐dimensional ( 1 H and 13 C) and two‐dimensional nuclear magnetic resonance, mass spectrometry and amino acid analysis, and identified as mycosporine‐2‐glycine. This is the first report of mycosporine‐2‐glycine in cyanobacteria.