We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Response of Sarcodia suiae to Long-term Exposure of Arsenic (Arsenate): Growth, Morphology, and Arsenic Alterations.
- Authors
Libatique, Mary Joy Halog; Lee, Meng-Chou; Yeh, Han-Yang; Jhang, Fu-Jie
- Abstract
Long-term (20 days: 5 days interval) responses of Sarcodia suiae to high-tested As(V) concentration (125 and 250 μg L−1) under optimized condition significantly inhibited growth rate (GR) and caused noticeable depigmentation in algal morphology. Interestingly, S. suiae appears to have positive growth-promoting effects to 62.5 μg L−1 concentration exposure suggesting that S. suiae may have developed a coping strategy (i.e., adaptation, detoxification, and possibility on the analogous nature of arsenate and phosphate) resulting to tolerance noted by the obtained higher GR. Moreover, uptake of As(V), as confirmed by reduced concentrations, caused intracellular arsenic speciation in S. suiae, resulting in As(III) becoming the relatively dominant arsenic species and producing small amounts of methylated species (DMA > MMA) and arsenoribosides ((AsB); (AsC)), and results implied that long-term data lead to higher As accumulation with elevated concentration of major As species. The high levels of As(III) accumulated by S. suiae indicate a high tolerance of the alga to the more toxic iAs (As(III)) suggesting S. suiae may warrant its use as an As(III) phytoremediator. Similarly, the As(V) biotransformation of S. suiae in the present study was intracellular arsenate bioreduction and subsequent intracellular biomethylation in either short-term or long-term duration which can be regarded as a survival strategy over toxicity. The long-term data provide an improved understanding of the shortcomings of short-term studies and better interpretation of macroalgal cumulative behavior and As patterns.
- Subjects
GREECE; ARSENATES; ARSENIC poisoning; ARSENIC; PSYCHOLOGICAL adaptation; MORPHOLOGY; TOXIC algae; CHEMICAL speciation
- Publication
Water, Air & Soil Pollution, 2020, Vol 231, Issue 5, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-020-04603-0