Mycosporine-Like Amino Acids (MAAs) in Time-Series of Lichen Specimens from Natural History Collections.

ABSTRACT: Mycosporine-like amino acids (MAAs) were quantified in fresh and preserved material of the chlorolichen Dermatocarponluridum var. luridum (Verrucariaceae/Ascomycota). The analyzed samples represented a time-series of over 150 years. An HPLC coupled with a diode array detector (HPLC-DAD) in hydrophilic interaction liquid chromatography (HILIC) mode method was developed and validated for the quantitative determination of MAAs. We found evidence for substance specific differences in the quality of preservation of two MAAs (mycosporine glutamicol, mycosporine glutaminol) in Natural History Collections. We found no change in average mycosporine glutamicol concentrations over time. Mycosporine glutaminol concentrations instead decreased rapidly with no trace of this substance detectable in colle

SUBMITTER: Chollet-Krugler M 

PROVIDER: S-EPMC6471344 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature