{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,7]],"date-time":"2026-02-07T16:29:40Z","timestamp":1770481780007,"version":"3.49.0"},"reference-count":75,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2009,9,30]],"date-time":"2009-09-30T00:00:00Z","timestamp":1254268800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Two arsenic-accumulating Pteris ferns (Pteris cretica mayii and Pteris multifida), along with a non-accumulating control fern (Nephrolepis exaltata) were grown in greenhouse conditions in clean sand spiked with 0, 20, 50, 100 and 200 ppm sodium arsenate. Spectral data were collected for each of five replicates prior to harvest at 4-week intervals. Fern samples were analyzed for total metals content and Partial Least Squares and Stepwise Linear Regression techniques were used to develop models from the spectral data. Results showed that Pteris cretica mayii and Pteris multifida are confirmed hyperaccumulators of inorganic arsenic and that reasonably accurate predictive models of arsenic concentration can be developed from the first derivative of spectral reflectance of the hyperaccumulating Pteris ferns. Both the arsenic uptake and spectral results indicate that there is some species-specific variability but the results compare favorably with previously published data and additional research is recommended.<\/jats:p>","DOI":"10.3390\/rs1040644","type":"journal-article","created":{"date-parts":[[2009,9,30]],"date-time":"2009-09-30T13:09:17Z","timestamp":1254316157000},"page":"644-675","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Spectroscopic Analysis of Arsenic Uptake in Pteris Ferns"],"prefix":"10.3390","volume":"1","author":[{"given":"Terrence","family":"Slonecker","sequence":"first","affiliation":[{"name":"U.S. Geological Survey, Eastern Geographic Science Center, 12201 Sunrise Valley Drive, MS 521, Reston, VA 20192, USA"}]},{"given":"Barry","family":"Haack","sequence":"additional","affiliation":[{"name":"George Mason University, Department of Geography and Geoinformation Science, Fairfax, VA 22030, USA"}]},{"given":"Susan","family":"Price","sequence":"additional","affiliation":[{"name":"U.S. Geological Survey, Eastern Geographic Science Center, 12201 Sunrise Valley Drive, MS 521, Reston, VA 20192, USA"}]}],"member":"1968","published-online":{"date-parts":[[2009,9,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"579","DOI":"10.1038\/35054664","article-title":"A fern that hyperaccumulates arsenic","volume":"409","author":"Ma","year":"2001","journal-title":"Nature"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1046\/j.1469-8137.2002.00493.x","article-title":"Arsenic hyperaccumulation by different fern species","volume":"156","author":"Zhao","year":"2002","journal-title":"New Phytol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1016\/j.scitotenv.2005.11.002","article-title":"Three new arsenic hyperaccumulating ferns","volume":"364","author":"Srivastava","year":"2006","journal-title":"Sci. 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