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  3. Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California

Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California

Dates

Publication Date
Time Period
2020

Citation

Blum, J.S., Glabonjat, R.A., Miller, L.G., Webb, S.M., Stolz, J.F., Francesconi, K.A., Oremland, R.S., and Baesman, S.M., 2020, Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California: U.S. Geological Survey data release, https://doi.org/10.5066/P90VW2FP.

Summary

Mono Lake is a hypersaline soda lake rich in dissolved inorganic arsenic with its primary production currently dominated by Picocystis str. ML. We set out to determine if this picoplankter could metabolize inorganic arsenic, and in doing so form unusual arsenolipids (e.g., methylated arsinoyl ribosides) as reported in other saline ecosystems and by halophilic algae. We cultivated Picocystis str. ML on an inorganic seawater-based medium with either low (37 µM) or high (1,000 µM) phosphate in the presence of arsenite (~0.4 mM), arsenate (~0.8 mM), or without arsenic additions.

Contacts

Point of Contact :
Jodi S Blum
Originator :
Jodi S Blum, Ronald A Glabonjat, Laurence G Miller, Samuel M Webb, John F Stolz, Kevin A Francesconi, Ronald S Oremland, Shaun M Baesman
Metadata Contact :
Shaun M Baesman
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Office of the Associate Director for Ecosystems
USGS Mission Area :
Water Resources

Attached Files

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Picocystis Metadata.xml
Original FGDC Metadata
View 		54.92 KB application/fgdc+xml
Arsenic species.csv 6.26 KB text/csv
Figure 3 Picocystis growth.csv 1.87 KB text/csv
Figure S2 Picocystis growth.csv 1.17 KB text/csv
Arsenolipids and growth of Picocystis .xlsx 42.91 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Purpose

These data were collected to understand the biological uptake of inorganic arsenic from Mono Lake into different biological fractions in both the water column and sediment. An in-depth study of Picocystis strain ML under different phosphate and inorganic arsenic levels resulted in arsenic ending up primarily into the lipid or water soluble fraction depending on experimental conditions.

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P90VW2FP

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