Structure of euhalothece-362, a novel red-shifted mycosporine-like amino acid, from a halophilic cyanobacterium (Euhalothecesp.)

Marc Volkmann, Anna A. Gorbushina, Laura Kedar, Aharon Oren*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

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.

Original languageAmerican English
Pages (from-to)50-54
Number of pages5
JournalFEMS Microbiology Letters
Volume258
Issue number1
DOIs
StatePublished - May 2006

Keywords

  • Cyanobacteria
  • Euhalothece
  • Euhalothece-362
  • Mycosporine-like amino acids

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