Arsenolipids are not uniformly distributed within two brown macroalgal species Saccharina latissima and Alaria esculenta.

ABSTRACT: Brown macroalgae Saccharina latissima (30-40 individuals) and Alaria esculenta (15-20 individuals) were collected from natural populations in winter in Iceland. The algal thalli were sectioned into different parts (e.g. holdfast, stipe, old frond, young frond and sori-containing frond sections) that differed in age and biological function. The work elucidated that arsenic (As) was not uniformly distributed within the two brown macroalgal species, with lower levels of total As were found in the stipe/midrib compared to other thallus parts. The arsenosugars mirrored the total arsenic in the seaweed mainly due to AsSugSO₃ being the most abundant As species. However, arsenic speciation using parallel HPLC-ICP-MS/ESI-MS elucidated that the arsenic-containing lipids (AsL) had a differ

SUBMITTER: Petursdottir AH 

PROVIDER: S-EPMC6611760 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature