alexa <p>Role of <em>Rhizobacteria</em> in Reduction of Arsenic Uptake by Plants: A Review</p> | OMICS International
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
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Review Article

Role of Rhizobacteria in Reduction of Arsenic Uptake by Plants: A Review

Suresh Jaiswal*
Departrment of Medical Lab Science, School of Health and Allied Sciences, Pokhara University, Lekhnath-12, Kaski, Nepal
Corresponding Author : Dr. Suresh Jaiswal
Lecturer, Department of Medical Lab Science
School of Health and Allied Sciences, Pokhara University
Lekhnath-12, Kaski, Nepal
Tel: 00977 9843019151
E-mail: [email protected]
Received May 30, 2011; Accepted September 08, 2011; Published September 24, 2011
Citation: Jaiswal S (2011) Role of Rhizobacteria in Reduction of Arsenic Uptake by Plants: A Review. J Bioremed Biodegrad 2:126. doi: 10.4172/2155-6199.1000126
Copyright: © 2011 Jaiswal S. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Heavy metal pollution of soil is a significant environmental problem and has its negative impact on human health and agriculture. Arsenic (As) distribution and toxicology in the environment is the serious issue worldwide. Rice is the major staple food for people in West Bengal and Bangladesh, is the biggest sufferers of arsenic contamination, and so protecting crops is of major importance and serious issues at these places. Bioremediation is the application of living organisms or products, or the application of biological principles, to ameliorate adverse environmental condition. Rhizosphere, as an important interface of soil and plant, plays a significant role in phytoremediation of contaminated soil by heavy metals, in which, microbial populations are known to affect heavy metal mobility and availability to the plant through release of chelating agents, acidification, phosphate solubilization and redox changes, and therefore, have potential to enhance phytoremediation processes. Phytoremediation strategies with appropriate heavy metal-adapted Rhizobacteria have received more and more attention. Microbes may influence our needs directly or indirectly. Directly by their detoxification potentials and may be the source of bioremediation and genetic engineering. Their exploitation in arsenic remediation would be simplest phenomenon to protect crops from arsenic, as it blocks the entry of heavy metals. This article deals with the identification, characterization and bioremediation advances in effect and significance of As-resistant Rhizobacteria in phytoremediation of heavy metal contaminated soils to prevent the transport arsenic metal from root to shoot to prevent the uptake by plants. There is also a need to improve our understanding of the mechanisms involved in the transfer and mobilization of heavy metals by Rhizobacteria and to conduct research on the selection of microbial isolates from rhizosphere of plants growing on heavy metal contaminated soils for specific restoration programmes.

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