News Features
“Decoding Rice Roots” – work by Frank Linam published in UDaily https://www.udel.edu/udaily/2024/april/frank-linam-plant-and-soil-science-research-student-success/
“Keeping arsenic out of rice” by Carolyn Beans. PNAS Front Matter. https://doi.org/10.1073/pnas.2113071118
“Some food contamination starts in the soil” by Kaine Korzekwa. https://www.soils.org/news/science-news/some-food-contamination-starts-soil/
“An eco-friendly approach to reducing arsenic in rice” https://www.nsf.gov/news/news_summ.jsp?cntn_id=138942
Publications by Seyfferth and the Seyfferth lab
†Publication where Seyfferth is corresponding author; Seyfferth as last author on these papers indicates her role as senior author where her lab members are lead authors.
‡Undergraduate student *Graduate Student; **Postdoc; Names in bold represent members of the Seyfferth lab
Hu, R.*, Limmer, M.A.**, Seyfferth A.L. How manganese affects rice cadmium uptake and translocation in vegetative and mature plants. Plant and Soil, 2024, In Press. https://doi.org/10.1007/s11104-024-06669-9
Fettrow, S.*, Wozniak, A., Michael, H.A., Seyfferth A.L. Factors controlling spatiotemporal variability of soil carbon accumulation and stock estimates in a tidal salt marsh. EGU Biogeosciences, 2024, In Press. https://doi.org/10.5194/bg-21-2367-2024
Linam, F*. Limmer, M.A.**, Seyfferth A.L. Contrasting roles of rice root iron plaque in retention and plant uptake of silicon, phosphorus, arsenic, and selenium in diverse paddy soils. Plant and Soil, 2024, In Press https://doi.org/10.1007/s11104-024-06553-6
Capooci, M. Seyfferth A.L. Tobias, C. Wozniak, A.S., Hedgpeth, A., Bowen, M., Biddle, J.F., McFarlane, K.J., Vargas, R. High methane concentrations in tidal salt marshes: Where does the methane go?. Global Change Biology, 2023, 30:e17050 https://doi.org/10.1111/gcb.17050
Chan, C.S., Dykes, G.E*, Hoover, R.L., Limmer, M.A.**, Seyfferth A.L. Gallionellaceae in rice root plaque: metabolic roles in iron oxidation, nutrient cycling and plant interactions. Applied and Environmental Microbiology, 2023, 89:e00570-23 https://doi.org/10.1128/aem.00570-23
Limmer, M.A.**, Linam, F.*, Seyfferth A.L. The effect of rice residue management on rice paddy Si, Fe, As, and methane biogeochemistry. Science of the Total Environment, 2023, 903, 166496 https://doi.org/10.1016/j.scitotenv.2023.166496
Fettrow, S.*, Jeppi, V.*, Wozniak, A., Vargas, R., Michael, H.A., Seyfferth A.L. Physiochemical controls on the horizontal exchange of blue carbon across the salt marsh-tidal channel interface. Journal of Geophysical Research-Biogeosciences, 2023, 128, e2023JG007404. https://doi.org/10.1029/2023JG007404
Linam, F.*, Limmer, M.A.**, Ebling,, A.M., Seyfferth, A.L. Soil amendment of rice husk and husk biochar stores soil carbon while water management controls dissolved organic matter chemistry in well-weathered soil. Journal of Environmental Management, 2023, 339, 117936. https://doi.org/10.1016/j.jenvman.2023.117936
Limmer, M.A.**, Linam, F*. Evans, A.*, Seyfferth, A.L. Unraveling the mechanisms of Fe oxidation and Mn reduction on Mn IRIS films. Environmental Science and Technology, 2023, 57, 6530-6539. https://doi.org/10.1021/acs.est.3c00161
Limmer, M.A.**, Webb, S. Seyfferth, A.L. Evaluation of quantitative synchrotron radiation µX-ray fluorescence (SR-µXRF) in rice grain. Journal of Synchrotron Radiation, 2023, 30, 407-416. https://doi.org/10.1107/S1600577523000747
Fettrow, S.* Vargas, R., Seyfferth AL. Experimentally simulated sea level rise destabilizes carbon-mineral associations in temperate tidal marsh soil. Biogeochemistry, 2023, 163, 103-120. https://doi.org/10.1007/s10533-023-01024-z
Hu R*, Cooper J, Daroub S, Kerl CF, Planer-Friedrich B, Seyfferth AL. Low levels of arsenic and cadmium in rice grown in southern Florida histosols – Impacts of water management and soil thickness. Science of the Total Environment, 2023, 869, 161712. https://doi.org/10.1016/j.scitotenv.2023.161712
Vázquez-Lule, A*., Seyfferth, A.L., Limmer, M.A.** Mey, P., Guevara, M., Vargas R. Hyperspectral reflectance for measuring vegetation nutrients and canopy photosynthesis in a salt marsh. JGR Biogeosciences, 2022, 127, e2022JG007088 https://doi.org/10.1029/2022JG007088
Limmer, M.A.**, Seyfferth, A.L. (equal contribution) Altering the localization and toxicity of arsenic in rice grain, Scientific Reports, 2022, 12, 5210. https://doi.org/10.1038/s41598-022-09236-3
Limmer, M.A.**, Thomas, J.‡, Seyfferth, A.L. The effect of silicon on the kinetics of rice root iron plaque formation, Plant and Soil, 2022, 477, 171-181. https://doi.org/10.1007/s11104-022-05414-4
Linam, F.*, Limmer, M.**, Tappero, R., Seyfferth, A.L. Rice husk and charred husk amendments increase porewater and plant Si but water management determines grain As and Cd concentration. Plant and Soil, 2022, 477, 135-152. https://doi.org/10.1007/s11104-022-05350-3
Hu. R.*, Seyfferth, A.L. Rice Cd Levels in Cambodia Ranged 3 Orders of Magnitude due to Season and Soil Cd Levels ACS Omega, 2021, 6, 19876-19882. https://doi.org/10.1021/acsomega.1c02741
Runkle, B.R.K., Seyfferth, A.L., Reid, M.C., Limmer, M.A.**, Moreno-Garcia, B., Reavis, C.W., Peña, J., Reba, M.L., Adviento-Borbe, A.A., Pinson, S.R.M., Isbell, C. Socio-technical changes for sustainable rice production: rice husk amendment, conservation irrigation, and system changes. Frontiers in Agronomy, 2021, 3, 741557. https://doi.org/10.3389/fagro.2021.741557
Dykes, G.E.*, Limmer, M.A.**, Seyfferth, A.L. Silicon-rich soil amendments impact microbial community composition and the composition of arsM bearing microbes. Plant and Soil, 2021, 468, 147-164. https://doi.org/10.1007/s11104-021-05103-8
Limmer, M.A.**, Evans, A.E*, Seyfferth, A.L. The IRIS Imager: A freeware program for quantification of paint removal on IRIS films. Soil Science Society of America Journal, 2021, 85, 2210-2219. https://doi.org/10.1002/saj2.20308
Dykes, G.E.*, Chan, C., Seyfferth, A.L. 16S rRNA gene amplicon sequencing data from flooded rice paddy mesocosms treated with different silicon-rich soil amendments. Microbial Resource Announcements, 2021, 10, e0017821. https://doi.org/10.1128/MRA.00178-21
Evans, A.E*, Limmer, M.A.** Seyfferth, A.L. Indicator of redox in soil (IRIS) films as a water management tool for rice farmers. Journal of Environmental Management, 2021, 294, 112920. https://doi.org/10.1016/j.jenvman.2021.112920
Hu, R.*, Teasley, W.A.,* Seyfferth, A.L. Paired soil and rice As and Cd from Northeastern USA rice farms. Agricultural and Environmental Letters, 2021, 6, e20040. https://doi.org/10.1002/ael2.20040
Seyfferth, A.L., Limmer, M.A.**, Tappero, R. A method to preserve wetland roots and rhizospheres for elemental imaging. Journal of Visualized Experiments, 2021, 168, e62227. https://doi.org/10.3791/62227
Limmer, M.**, Evans, A. E.*, Seyfferth, A.L. A new method to capture the spatial and temporal heterogeneity of aquatic plant iron root plaque in situ. Environmental Science and Technology, 2021, 55, 912-918. https://doi.org/10.1021/acs.est.0c02949
Linam, F.*, McCoach, K.‡, Limmer, M.**, Seyfferth, A.L. Contrasting effects of rice husk pyrolysis temperature on silicon dissolution and retention of cadmium (Cd) and dimethylarsinic acid (DMA). Science of the Total Environment, 2021, 765, 144428. https://doi.org/10.1016/j.scitotenv.2020.144428
Farhat, Y.A., Kim, S-H., Seyfferth, A.L., Zhang, L., Neumann, R.B. Altered arsenic availability, uptake, and allocation in rice under elevated temperature. Science of the Total Environment, 2021, 763, 143049. https://doi.org/10.1016/j.scitotenv.2020.143049
Griffith, A.‡, Wise, P.‡, Gill, R., Paukett, M.‡, Donofrio, N. Seyfferth, A.L. Combined effects of arsenic and Magnaporthe oryzae on rice and alleviation by silicon. Science of the Total Environment, 2021, 750, 142209 https://doi.org/10.1016/j.scitotenv.2020.142209
Limmer, M.A.**, Seyfferth, A.L. Carryover effects of silicon-rich amendments in rice paddies. Soil Science Society of America Journal, 2021, 85, 314-327. https://doi.org/10.1002/saj2.20146
Brooker, R.M., Seyfferth, A.L., Hunter, A.‡, Sneed, J.M., Dixson, D.L., Hay, M.E. Human proximity suppresses fish recruitment by altering mangrove-associated odour cues. Scientific Reports, 2020, 10, 21091. https://doi.org/10.1038/s41598-020-77722-7
Ligaba-Osena, A., Guo, W., Chul Choi, S., Limmer, M.A.**, Seyfferth, A.L. Hankoua B, B. Silicon enhances biomass and grain yield in an ancient crop tef [Eragrostis tef (Zucc.) Trotter]. Frontiers in Plant Science, 2020, 11, 608503. https://doi.org/10.3389/fpls.2020.608503
Trifunovic, B., Vazquez-Lule, A., Capooci, M., Seyfferth, A.L., Moffat, C., Vargas, R. Carbon dioxide and methane emissions from a temperate salt marsh tidal creek. JGR-Biogeosciences, 2020, 125, e2019jg005558. https://doi.org/10.1029/2019JG005558
Dykes, G.E.*, Chari, N.‡, Seyfferth, A.L. Si-induced DMA desorption is not the driver for enhanced DMA availability after Si addition to flooded soils. Science of the Total Environment, 2020, 739, 139906 https://doi.org/10.1016/j.scitotenv.2020.139906Get
Seyfferth, A.L., Bothfeld, F.*, Vargas, R., Stuckey, J. W., Wang, J., Kearns, K.‡, Michael., H.A., Guimond, J.*, Yu, X., Sparks, D. L. Spatial and temporal heterogeneity of geochemical controls on carbon cycling in a tidal salt marsh. Geochimica et Cosmochimica Acta, 2020, 282, 1-18. https://doi.org/10.1016/j.gca.2020.05.013
Wu, W.*, Limmer, M.A.**, Seyfferth, A.L. Quantitative assessment of plant-available silicon extraction methods in rice paddy soil under different management. Soil Science Society of America Journal, 2020, 84, 618-626. https://doi.org/10.1002/saj2.20013
Guimond, J.A.*, Yu, X., Seyfferth, A.L., Michael., H.A. Using hydrological-biogeochemical linkages to elucidate carbon dynamics in coastal marshes subject to relative sea-level rise. Water Resources Research, 2020, 56(2). https://doi.org/10.1029/2019WR026302
Limmer, M.A.**, Seyfferth, A.L. The role of small molecules in restricting rice accumulation of dimethylarsinic acid. Plant and Soil, 2020, 447, 599-609. https://doi.org/10.1007/s11104-019-04414-1
Guimond, J.A.*, Seyfferth, A.L., Moffett, K.B., Michael, H. A physical-biogeochemical mechanism for negative feedback between marsh crabs and carbon storage. Environmental Research Letters, 2020, 15, 034024. https://doi.org/10.1088/1748-9326/ab60e2
Seyfferth, A.L., Limmer, M.A.**, Wu, W*. Si and water management drives changes in Fe and Mn pools that affect As cycling and uptake in rice. Soil Systems, 2019, 3(3), 58. https://doi.org/10.3390/soilsystems3030058
Capooci, M.*, Barba, J., Seyfferth, A.L., Vargas, R. Experimental influence of storm-surge salinity on soil greenhouse gas emissions from a tidal salt marsh. Science of the Total Environment, 2019, 686, 1164-1172. https://doi.org/10.1016/j.scitotenv.2019.06.032
Seyfferth, A.L., Amaral, D.C.*, Limmer, M.A.**, Guilherme, L. R. Combined impacts of Si-rich rice residues and flooding extent on grain As and Cd in rice. Environment International, 2019, 128, 301-309. https://doi.org/10.1016/j.envint.2019.04.060
Limmer, M.A.**, Wise, P.‡, Dykes, G.E.*, Seyfferth, A.L. Silicon decreases dimethylarsinic acid concentration in rice grain and mitigates straighthead disorder. Environmental Science and Technology, 2018, 52, 4890-4816. https://doi.org/10.1021/acs.est.8b00300
Warner, D. L., Vargas, R., Seyfferth, A.L., Inamdar, S. Transitional slopes act as hotspots of both soil CO2 emission and CH4 uptake in a temperate forest landscape. Biogeochemistry, 2018, 138, 121-135. https://doi.org/10.1007/s10533-018-0435-0
Northrup, K.*, Capooci, M., Seyfferth, A.L. Effects of extreme events on arsenic cycling in salt marshes. JGR Biogeosciences, 2018, 123, 1086-1100. https://doi.org/10.1002/2017JG004259
Seyfferth, A.L., Limmer, M.A.**, Dykes, G.* On the use of silicon as an agronomic mitigation strategy to decrease arsenic uptake by rice. Advances in Agronomy, 2018, 149, 49-91. https://doi.org/10.1016/bs.agron.2018.01.002
Limmer, M.A.**, Mann, J.N. ‡, Amaral, D.*, Vargas, R., Seyfferth, A.L. Silicon-rich amendments in rice paddies: Effects on arsenic uptake and biogeochemistry. Science of the Total Environment, 2018, 624, 1360-1368. https://doi.org/10.1016/j.scitotenv.2017.12.207
Seyfferth, A.L., Ross, J., Webb, S.M. Evidence for the root-uptake of arsenite at lateral root junctions and root apices in rice (Oryza sativa L.). Soil Systems, 2017, 1, 3.
Teasley, W.A.*, Limmer, M.A.**, Seyfferth, A.L. How rice (Oryza sativa L.) responds to elevated As under different Si-rich amendments. Environmental Science and Technology, 2017, 51, 10335-10343. https://doi.org/10.3390/soils1010003
Neumann, R.B., Seyfferth, A.L., Teshera-Levye, J., Ellingson, J. Soil warming increases arsenic availability in the rice rhizosphere. Agricultural and Environmental Letters 2017, 2, 170006. https://doi.org/10.2134/ael2017.02.0006
Petrakis, S. *, Seyfferth, A.L., Kan, J., Inamdar, S., Vargas, R. Influence of experimental extreme water pulses on greenhouse gas emissions from soils. Biogeochemistry, 2017, 133, 147-164. https://doi.org/10.1007/s10533-017-0320-2
Gutekunst, M.‡, Vargas, R., Seyfferth, A.L. Impacts of soil incorporation of pre-incubated silica-rich rice residue on soil biogeochemistry and greenhouse gas fluxes under flooding and drying. Science of the Total Environment, 2017, 593, 134-143. https://doi.org/10.1016/j.scitotenv.2017.03.097
Amaral, D.*, Lopes, G., Guilherme, L. R., Seyfferth, A.L. A new approach to sampling intact Fe plaque reveals Si-induced changes in Fe mineral composition and shoot As in rice. Environmental Science and Technology 2017, 51, 38-45. https://doi.org/10.1021/acs.est.6b03558
Seyfferth, A.L., McClatchy, C.‡, Paukett, M.‡ Arsenic, lead, and cadmium in U.S. mushrooms and substrate in relation to dietary exposure. Environmental Science and Technology 2016, 50, 9661-9670. https://doi.org/10.1021/acs.est.6b02133
Seyfferth, A.L., Morris, A.H., Gill, R., Kearns, K.A.‡, Mann, J.N.‡, Paukett, M.‡,Leskanic, C.‡ Soil incorporation of silica-rich rice husk decreases inorganic arsenic in rice grain. Journal of Agricultural and Food Chemistry 2016, 64, 3760 – 3766. https://doi.org/10.1021/acs.jafc.6b01201
Penido, E.S.‡, Bennet, A., Hanson, T.E., Seyfferth, A.L. Biogeochemical impacts of high-silicon rice residue incorporation into flooded soil: Implications for rice nutrition and cycling of arsenic. Plant and Soil 2016, 399, 75 – 87. https://www.jstor.org/stable/43872538
Seyfferth, A.L., Abiotic effects of dissolved oxyanions on iron plaque quantity and mineral composition in a simulated rhizosphere. Plant and Soil 2015, 397, 43 – 61. https://doi.org/10.1007/s11104-015-2597-z
Lakshmanan, V., Shantaraj, D., Li, G.**, Seyfferth, A.L., Sherrier, D.J., and Bais, H.P. A natural rice rhizospheric bacterium abates arsenic accumulation in rice (Oryza sativa L.). Planta 2015, 242, 1037 – 1050. https://doi.org/10.1007/s00425-015-2340-2
Seyfferth, A.L., McCurdy, S.‡, Schaefer, M.V., Fendorf, S. Arsenic concentrations in paddy soil and rice and health implications for major rice growing regions of Cambodia. Environmental Science and Technology 2014, 48, 4699 – 4706. https://doi.org/10.1021/es405016t
Seyfferth, A.L., Kocar, B.D., Lee, J.A., Fendorf, S. Seasonal dynamics of dissolved silicon in a California rice cropping system after straw incorporation. Geochimica et Cosmochimica Acta 2013, 123, 120 – 133. https://doi.org/10.1016/j.gca.2013.09.015
Seyfferth, A.L., Fendorf, S. Silicate mineral impacts on the uptake and storage of arsenic and plant nutrients in rice (Oryza sativa L.). Environmental Science and Technology 2012, 46, 13176-13183. https://doi.org/10.1021/es3025337
Seyfferth, A.L., Webb, S.M., Andrews, J.C., Fendorf, S. Defining the distribution of arsenic species and plant nutrients in rice (Oryza sativa L.) from the root to the grain. Geochimica et Cosmochimica Acta 2011, 75, 6655 – 6671. https://doi.org/10.1016/j.gca.2011.06.029
Zhuang, Y., Ahn, S., Seyfferth, A.L., Masue-Slowey, Y., Fendorf, S., Luthy, R.G. Dehalogenation of polybrominated diphenyl ethers and polychlorinated biphenyl by bimetallic, impregnated, and nanoscale zerovalent iron. Environmental Science and Technology 2011, 45, 4896 – 4903. https://doi.org/10.1021/es104312h
Kim, E., Seyfferth, A.L., Fendorf, S. Luthy, R.G. Immobilization of Hg(II) in water by polysulfide-rubber (PSR) polymer-coated activated carbon. Water Research 2011, 45, 453 – 460. https://doi.org/10.1016/j.watres.2010.08.045
Seyfferth, A.L., Webb, S.M., Andrews, J.C., Fendorf, S. Arsenic localization, speciation, and co-occurrence with iron on rice (Oryza sativa L.) roots with variable Fe coatings. Environmental Science and Technology 2010, 44, 8108 – 8113. https://doi.org/10.1021/es101139z
Seyfferth, A.L., Sturchio, N.C., Parker, D.R. Is perchlorate metabolized or re-translocated in lettuce leaves? A stable-isotope approach. Environmental Science and Technology 2008, 42, 9437 – 9442. https://doi.org/10.1021/es802006e
Seyfferth, A.L., Henderson, M.K.‡, Parker, D.R. Effects of common soil anions and pH on the uptake and accumulation of perchlorate in lettuce. Plant Soil 2008, 302, 139 – 148. https://doi.org/10.1007/s11104-007-9461-8
Parker, D. R. , Seyfferth, A.L., Reese, B. K. Perchlorate in groundwater: A synoptic survey of “pristine” sites in the coterminous United States. Environmental Science and Technology 2008, 42:1465-1471. https://doi.org/10.1021/es7021957
Seyfferth, A.L. and Parker, D.R. Uptake and fate of perchlorate in higher plants. Advances in Agronomy 2008, 99, 101 – 123. https://doi.org/10.1016/S0065-2113(08)00402-1
Seyfferth, A.L. and Parker, D.R. Effects of genotype and transpiration rate on the uptake and accumulation of perchlorate (ClO4–) in lettuce. Environmental Science and Technology 2007, 41, 3361 – 3367. https://doi.org/10.1021/es062337s
Seyfferth, A.L. and Parker, D.R. Determination of low levels of perchlorate in lettuce and spinach using ion chromatography-electrospray ionization-mass spectrometry (IC-ESI-MS). Journal of Agricultural and Food Chemistry 2006, 54, 2012 – 2017. https://doi.org/10.1021/jf052897v