Next Article in Journal
Acknowledgement to Reviewers of Agronomy in 2015
Next Article in Special Issue
Temporal Dynamics in Rhizosphere Bacterial Communities of Three Perennial Grassland Species
Previous Article in Journal
Novel QTL for Stripe Rust Resistance on Chromosomes 4A and 6B in Soft White Winter Wheat Cultivars
Previous Article in Special Issue
Polyethylene Glycol (PEG)-Treated Hydroponic Culture Reduces Length and Diameter of Root Hairs of Wheat Varieties
Review

Extracellular Trapping of Soil Contaminants by Root Border Cells: New Insights into Plant Defense

1
Department of Soil, Water and Environmental Sciences, University of Arizona, Tucson, AZ 85721, USA
2
Water Resources Research Center, 350 N. Campbell Avenue, Tucson, AZ 85719, USA
3
Universidad de Sonora, Unidad Regional Norte Caborca, Mexico
4
Southern Arizona Buffelgrass Coordination Center, University of Arizona, Tucson, AZ, 85721, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Leslie A. Weston and Xiaocheng Zhu
Agronomy 2016, 6(1), 5; https://doi.org/10.3390/agronomy6010005
Received: 6 November 2015 / Revised: 23 December 2015 / Accepted: 5 January 2016 / Published: 12 January 2016
(This article belongs to the Special Issue Interactions between Plant Rhizosphere and Soil Organisms)
Soil and water pollution by metals and other toxic chemicals is difficult to measure and control, and, as such, presents an ongoing global threat to sustainable agriculture and human health. Efforts to remove contaminants by plant-mediated pathways, or “phytoremediation”, though widely studied, have failed to yield consistent, predictable removal of biological and chemical contaminants. Emerging research has revealed that one major limitation to using plants to clean up the environment is that plants are programmed to protect themselves: Like white blood cells in animals, border cells released from plant root tips carry out an extracellular trapping process to neutralize threats and prevent injury to the host. Variability in border cell trapping has been found to be correlated with variation in sensitivity of roots to aluminum, and removal of border cell results in increased Al uptake into the root tip. Studies now have implicated border cells in responses of diverse plant roots to a range of heavy metals, including arsenic, copper, cadmium, lead, mercury, iron, and zinc. A better understanding of border cell extracellular traps and their role in preventing toxin uptake may facilitate efforts to use plants as a nondestructive approach to neutralize environmental threats. View Full-Text
Keywords: root border cells; extracellular DNA; neutrophil extracellular traps; rhizofiltration; heavy metals root border cells; extracellular DNA; neutrophil extracellular traps; rhizofiltration; heavy metals
Show Figures

Figure 1

MDPI and ACS Style

Hawes, M.C.; McLain, J.; Ramirez-Andreotta, M.; Curlango-Rivera, G.; Flores-Lara, Y.; Brigham, L.A. Extracellular Trapping of Soil Contaminants by Root Border Cells: New Insights into Plant Defense. Agronomy 2016, 6, 5. https://doi.org/10.3390/agronomy6010005

AMA Style

Hawes MC, McLain J, Ramirez-Andreotta M, Curlango-Rivera G, Flores-Lara Y, Brigham LA. Extracellular Trapping of Soil Contaminants by Root Border Cells: New Insights into Plant Defense. Agronomy. 2016; 6(1):5. https://doi.org/10.3390/agronomy6010005

Chicago/Turabian Style

Hawes, Martha C., Jean McLain, Monica Ramirez-Andreotta, Gilberto Curlango-Rivera, Yolanda Flores-Lara, and Lindy A. Brigham 2016. "Extracellular Trapping of Soil Contaminants by Root Border Cells: New Insights into Plant Defense" Agronomy 6, no. 1: 5. https://doi.org/10.3390/agronomy6010005

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop