Megan Andrews

Works (7)

Updated: July 10th, 2023 21:16

2017 article

Assessing Biomineral Formation by Iron‐oxidizing Bacteria in a Circumneutral Creek

Almaraz, N., Whitaker, A. H., Andrews, M. Y., & Duckworth, O. W. (2017, April 1). Journal of Contemporary Water Research & Education, Vol. 160, pp. 60–71.

By: N. Almaraz n, A. Whitaker n, M. Andrews n & O. Duckworth n 

author keywords: iron (hydr)oxides; water chemistry; neutrophilic; gradient tubes; iron oxidation; groundwater
topics (OpenAlex): Mine drainage and remediation techniques; Iron oxide chemistry and applications; Arsenic contamination and mitigation
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Revisiting Graduate Student Training to Address Agricultural and Environmental Societal Challenges

Agricultural & Environmental Letters, 2(1), 170019.

By: O. Duckworth n , M. Andrews n, M. Cubeta n , A. Grunden n  & P. Ojiambo n 

topics (OpenAlex): Microbial Community Ecology and Physiology; Soil Carbon and Nitrogen Dynamics; Research Data Management Practices
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018

2016 article

A universal assay for the detection of siderophore activity in natural waters

Andrews, M. Y., & Duckworth, O. (2016, November 5). BioMetals, Vol. 29, pp. 1085–1095.

By: M. Andrews n & O. Duckworth n 

Contributors: M. Andrews n & O. Duckworth n 

author keywords: Siderophores; Environmental assay; Metal uptake; Biogeochemistry
MeSH headings : Colorimetry / methods; Hydroxybenzoates / chemistry; Iron / chemistry; Osmolar Concentration; Rivers / chemistry; Sensitivity and Specificity; Siderophores / analysis; Spectrophotometry, Ultraviolet / methods; Water / analysis
topics (OpenAlex): Microbial Fuel Cells and Bioremediation; Heavy metals in environment; Chromium effects and bioremediation
TL;DR: A high sensitivity modification of this universal assay (HS-CAS) suitable for detecting and quantifying siderophore activity in the nM concentration range is presented, allowing for direct quantitation of siderophile reactivity in transparent aqueous samples. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 article

Morphology, structure, and metal binding mechanisms of biogenic manganese oxides in a superfund site treatment system

Duckworth, O. W., Rivera, N. A., Gardner, T. G., Andrews, M. Y., Santelli, C. M., & Polizzotto, M. L. (2016, December 1). Environmental Science Processes & Impacts, Vol. 19, pp. 50–58.

By: O. Duckworth n , N. Rivera n, T. Gardner n , M. Andrews n, C. Santelli * & M. Polizzotto n

Contributors: O. Duckworth n , N. Rivera n, T. Gardner n , M. Andrews n, C. Santelli * & M. Polizzotto n

MeSH headings : Biofilms; Environmental Pollutants / chemistry; Environmental Restoration and Remediation / methods; Fungi / chemistry; Fungi / metabolism; Manganese Compounds / chemistry; Manganese Compounds / metabolism; Metals / chemistry; Microscopy, Electron, Scanning; Oxidation-Reduction; Oxides / chemistry; Oxides / metabolism; X-Ray Absorption Spectroscopy; X-Ray Diffraction
topics (OpenAlex): Geochemistry and Elemental Analysis; Mercury impact and mitigation studies; Extraction and Separation Processes; Radioactive element chemistry and processing
TL;DR: The results indicate that Mn oxides produced by organisms in the system may effectively scavenge metals, thus highlighting the potential utility of these organisms in designed remediation systems. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 article

Layer plate CAS assay for the quantitation of siderophore production and determination of exudation patterns for fungi

Andrews, M. Y., Santelli, C. M., & Duckworth, O. W. (2015, December 19). Journal of Microbiological Methods, Vol. 121, pp. 41–43.

By: M. Andrews n, C. Santelli * & O. Duckworth n 

Contributors: M. Andrews n, C. Santelli * & O. Duckworth n 

author keywords: Siderophores; CAS assay; Quantitative assay; Fungi
MeSH headings : Agar / chemistry; Culture Media; Fungi / growth & development; Fungi / metabolism; Humans; Hydroxybenzoates / chemistry; Indicators and Reagents / chemistry; Microbiological Techniques / methods; Mycology / methods; Siderophores / biosynthesis
topics (OpenAlex): Lichen and fungal ecology; Plant Pathogens and Fungal Diseases; Fungal Biology and Applications
TL;DR: A modified version of the CAS assay is described that is suitable for quantifying siderophore exudation for microorganisms, including fungi. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 article

Ectomycorrhizal fungi and past high CO 2 atmospheres enhance mineral weathering through increased below-ground carbon-energy fluxes

Quirk, J., Andrews, M. Y., Leake, J. R., Banwart, S. A., & Beerling, D. J. (2014, July 1). Biology Letters.

By: J. Quirk *, M. Andrews n, J. Leake *, S. Banwart * & D. Beerling *

author keywords: silicate weathering; mycorrhizal fungi; elevated carbon dioxide; photosynthate flux; (CO2)-C-14 tracer
MeSH headings : Carbon / metabolism; Carbon Dioxide / metabolism; Carbon Radioisotopes / metabolism; Cycadopsida / physiology; Fungi / physiology; Magnoliopsida / physiology; Minerals / chemistry; Mycorrhizae / metabolism; Plant Roots / microbiology; Silicates / chemistry; Soil Microbiology; Symbiosis; Trees / physiology
topics (OpenAlex): Mycorrhizal Fungi and Plant Interactions; Plant Diversity and Evolution; Lichen and fungal ecology
TL;DR: Calcium dissolution rates halved for both AM and EM trees as CO2 fell from 1500 to 450 ppm, but silicate weathering by AM trees at high CO2 approached rates for EM trees at near-current CO2. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2014 article

Siderophore-promoted dissolution of chromium from hydroxide minerals

Duckworth, O. W., Akafia, M. M., Andrews, M. Y., & Bargar, J. R. (2014, January 1). Environmental Science Processes & Impacts, Vol. 16, pp. 1348–1359.

By: O. Duckworth n , M. Akafia n, M. Andrews n & J. Bargar *

Contributors: O. Duckworth n , M. Akafia n, M. Andrews n & J. Bargar *

MeSH headings : Chromium / chemistry; Environmental Pollutants / chemistry; Hydrogen-Ion Concentration; Hydroxides / chemistry; Minerals / chemistry; Models, Chemical; Siderophores / chemistry; Solubility
topics (OpenAlex): Chromium effects and bioremediation; Heavy metals in environment; Radioactive element chemistry and processing
TL;DR: A series of dissolution experiments were conducted to quantify the dissolution rates of Cr(iii)(OH)3 in the presence of hydroxamate, catecholate, and α-hydroxycarboxylate siderophores over a range of environmentally relevant pH values, suggesting a ligand-promoted dissolution mechanism at alkaline pH. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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