Characterization of the chemical diversity of glycosylated mycosporine-like amino acids in the terrestrial cyanobacterium Nostoc commune

Abstract

Highlights: Glycosylated MAAs have been characterized in two genotypes of Nostoc commune. The A genotype produces β-Ara-porphyra-334 (478 Da) with λ max at 335 nm. The B genotype produces the hybrid MAA (1050 Da) with λ max at 312 nm. 2 AbstractMycosporine-like amino acids (MAAs) are UV-absorbing pigments, and structurally unique glycosylated MAAs are found in the terrestrial cyanobacterium Nostoc commune. In this study, we examined two genotypes of Nostoc commune colonies with different water extract UV-absorption spectra. We found structurally distinct MAAs in each genotype. The water extract from genotype A showed a UV-absorbing spectrum with an absorption maximum at

Characterization of extracellular matrix components from the desiccation-tolerant cyanobacterium <i>Nostoc commune</i>

“…N. commune strain KU006 (genotype B) has been isolated recently (Nazifi et al, 2015). In this study, N. commune strain KU007 (genotype C) and N. commune strain KU008 (genotype D) were isolated from the Kakuma Campus at Kanazawa University and purified by streaking them onto agar plates.…”

“…We have studied the desiccation tolerance in N. commune in physiological and biochemical terms (Matsui et al, 2011(Matsui et al, , 2012Morsy et al, 2008;Nazifi et al, 2013Nazifi et al, , 2015Sakamoto et al, 2009Sakamoto et al, , 2011Tamaru et al, 2005;Yoshida and Sakamoto, 2009;Wada et al, 2013Wada et al, , 2015.…”

Cyanobacterial metabolites as a source of sunscreens and moisturizers: a comparison with current synthetic compounds

“…Different kinds of MAAs have been found in cyanobacterial species in a variety of habitats such as the marine environment (Liu et al, 2004), hypersaline ponds (Kedar et al, 2002), rice fields (Sinha et al, 2003) and deserts (Bowker et al, 2002), and further investigations in diverse habitats might reveal new MAAs. Recently, glycosylated MAAs have been isolated from the terrestrial cyanobacterium Nostoc commune (Matsui et al, 2011;Nazifi et al, 2013Nazifi et al, , 2015. One of these MAAs (absorption maximum 334 nm) was identified as a hexose-bound porphyra-334 derivative with a molecular mass of 508 Da, another (absorption maximum 322 nm) as a two hexose-bound palythinethreonine derivative with a molecular mass of 612 Da.…”

Mild Acid Hydrolysis-related Release of Water-soluble Sunscreen Pigments from the Exopolysaccharide Matrix of Edible Terrestrial Cyanobacteria

“…The latter is a cosmopolitan species and most abundant in temperate regions. Typically MAAs are free intracellular compounds in marine algae, however they are generally oligosaccharide-linked in the exopolysaccharide (EPS) matrix of terrestrial cyanobacteria [11,12,13]. Because of the exposure to intense solar radiation and period desiccation, terrestrial cyanobacteria can be induced to produce rich UV-absorbing MAAs and scytonemin [14,15].…”

“…The extraction of MAAs from cyanobacteria usually employs pure or aqueous methanol or even water [1,5,6,13,16,17]. Samples are ground and destroyed by these extraction means.…”