Journal
FEMS MICROBIOLOGY LETTERS
Volume 258, Issue 1, Pages 50-54Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1574-6968.2006.00203.x
Keywords
cyanobacteria; Euhalothece; mycosporine-like amino acids; euhalothece-362
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The unicellular cyanobacterium Euhalothece sp. strain LK-1, isolated from a gypsum crust on the bottom of a hypersaline saltern pond in Eilat, Israel, contains high concentrations of two mycosporine-like amino acids with maximum absorbance at 331 and 362 nm when grown at high light intensities. The 331 nm-absorbing compound has previously been identified as mycosporine-2-glycine. Here, we confirm this identification and document the elucidation of the structure of the 362 nm absorbing compound ('euhalothece-362'), using liquid chromatography/mass spectrometry combined with other techniques, as a novel compound, 2-(E)-3-(E)-2,3-dihydroxyprop-1-enylimino-mycosporine-alanine.
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