Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2015 Feb 25:6:81.
doi: 10.3389/fpls.2015.00081. eCollection 2015.

PGPRs and nitrogen-fixing legumes: a perfect team for efficient Cd phytoremediation?

María T Gómez-Sagasti  1 , Daniel Marino  2
Affiliations
Review

PGPRs and nitrogen-fixing legumes: a perfect team for efficient Cd phytoremediation?

María T Gómez-Sagasti et al. Front Plant Sci. .

Abstract

Cadmium (Cd) is a toxic, biologically non-essential and highly mobile metal that has become an increasingly important environmental hazard to both wildlife and humans. In contrast to conventional remediation technologies, phytoremediation based on legume-rhizobia symbiosis has emerged as an inexpensive decontamination alternative which also revitalize contaminated soils due to the role of legumes in nitrogen cycling. In recent years, there is a growing interest in understanding symbiotic legume-rhizobia relationship and its interactions with Cd. The aim of the present review is to provide a comprehensive picture of the main effects of Cd in N2-fixing leguminous plants and the benefits of exploiting this symbiosis together with plant growth promoting rhizobacteria to boost an efficient reclamation of Cd-contaminated soils.

Keywords: PGPRs; cadmium; legume; nitrogen fixation; phytoremediation; symbiosis.

PubMed Disclaimer

Figures

FIGURE 1
FIGURE 1
Summary of the main processes that (A) influence metal bio/phytoremediation efficiency during PGPRs-plant interaction and (B) are benefited from the interaction between PGPRs and N2-fixing legumes.
See this image and copyright information in PMC

References

    1. Agency for Toxic Substances and Disease Registry (ATSDR). (2013). Toxicological Profile for Cadmium. Atlanta: U.S. Department of Health and Human Services, Public Health Service.
    1. Ahemad M., Kibret M. (2014). Mechanisms and applications of plant growth promoting rhizobacteria: current perspective. J. King. Saud. Univ. Sci. 26 1–20 10.1016/j.jksus.2013.05.001 - DOI
    1. Ahmad E., Zaidi A., Khan M. S., Oves M. (2012a). “Heavy metal toxicity to symbiotic nitrogen-fixing microorganism and host legumes,” in Toxicity of Heavy Metals to Legumes and Bioremediation, eds Zaidi A., Wani P. A., Khan M. S. (Vienna: Springer; ), 29–44 10.1007/978-3-7091-0730-0_2 - DOI
    1. Ahmad M., Zahir Z. A., Asghar H. N., Arshad M. (2012b). The combined application of rhizobial strains and plant growth promoting rhizobacteria improves growth and productivity of mung bean (Vigna radiata L.) under salt-stressed conditions. Ann. Microbiol. 62 1321–1330 10.1007/s13213-011-0380-9 - DOI
    1. Balestrasse K. B., Gallego S. M., Tomaro M. L. (2004). Cadmium-induced senescence in nodules of soybean (Glycine max L.) plants. Plant Soil 262 373–381 10.1023/B:PLSO.0000037056.11877.7b - DOI

LinkOut - more resources