abstract
The monosaccharide patterns of the microalgae species Nannochloropsis gaditana, Rhodomonas marina and Isochrysis sp. were assessed, to verify if nutrients availability had an impact on these parameters. Isochrysis sp. and Rhodomonas marina monosaccharides content decreased 13-94% as the nutrients availability increased. The relative abundance of monosaccharides depicted that, at low nutrients availabilities, Rhodomonas marina and Isochrysis sp. had preference for glucans synthesis, accounting for up to 75% of the monosaccharides detected. Linking the monosaccharides trends with the phylogeny and glycolipid data, it was possible to establish which monosaccharides had a structural and/or storage role in the microalgae studied. Thermal analysis revealed that the microalgae submitted to low nutrient input treatments presented a reduced assimilation of the inorganic compounds. Nutrient concentrations affected microalgae monosaccharide patterns, highlighting their taxonomic differences.
keywords
CELL-WALL; CHLORELLA; STARCH; POLYSACCHARIDES; ACCUMULATION; BIOSYNTHESIS; AVAILABILITY; MARICULTURE; BIOACTIVITY; PRODUCTS
subject category
Biotechnology & Applied Microbiology
authors
Fernandes, T; Fernandes, I; Andrade, CAP; Ferreira, A; Cordeiro, N
our authors
Artur Jorge Faria Ferreira
Professor Coordinatoracknowledgements
This study was partially supported by the Oceanic Observatory of Madeira (M1420-01-0145-FEDER-000001-Observatorio Oceanico da Madeira-OOM).