Role of novel bacterial Raoultella sp. strain X13 in plant growth promotion and cadmium bioremediation in soil

Applied Microbiology and Biotechnology
Shaozu XuWenli Chen

Abstract

Heavy metal pollution in agricultural soils has become a widespread serious problem with the rapid industrialization and urbanization in the past two decades. Cadmium (Cd2+) is of the most concern in soils due to its high toxicity. It is necessary to develop remediation strategies to remove or neutralize its toxic effects in Cd-contaminated soil. Microbial bioremediation is a promising technology to treat heavy metal-contaminated soils. In this study, Cd-resistant bacterium, isolated from heavy metal-polluted soil in Southern China, was characterized as Raoultella sp. strain X13 on the basis of its biochemical profile and 16S rRNA. We investigated the characterization of Cd2+ distribution in different cellular compartments after Cd2+ uptake. Cd2+ uptake by strain X13 was mainly by ion exchange and chelation binding tightly to the cell wall. In addition, X13 plant growth-promoting characteristics suggested that X13 could solubilize phosphate and produce indole acetic acid. Pot experiments for the remediation of Cd-contaminated soil in situ by X13 inoculation demonstrated that X13 application to Cd-contaminated soils significantly promoted pak choi growth and improved production. We also found that X13 substantially reduced the C...Continue Reading

References

Jan 1, 1987·Analytical Biochemistry·B Schwyn, J B Neilands
Mar 28, 2002·Environmental Pollution·Y X ChenS C Wu
May 26, 2009·Journal of Hazardous Materials·Wei-yu ShiSheng Du
Feb 13, 2010·Journal of Hazardous Materials·Ying LiBaoyu Gao
Apr 26, 2011·Journal of Hazardous Materials·Linchuan FangQiaoyun Huang
Mar 8, 2013·Colloids and Surfaces. B, Biointerfaces·Fei HuangHui Zhang
Jul 31, 2013·Journal of Environmental Management·Mani RajkumarHelena Freitas
Sep 24, 2013·The Science of the Total Environment·G FelletL Marchiol
Jul 18, 2015·International Journal of Molecular Sciences·Lu XiaWenli Chen
Aug 8, 2015·PloS One·Xiuying ZhangXiaoying Ouyang

❮ Previous
Next ❯

Citations

Mar 17, 2020·Environmental Science and Pollution Research International·Shuming LiuJun Fang
Jul 22, 2019·Environment International·Chenchen QuQiaoyun Huang
Apr 30, 2021·International Journal of Phytoremediation·Wasu Pathom-AreeSirasit Srinuanpan
Oct 30, 2021·Letters in Applied Microbiology·D Bravo, O Braissant
Jan 14, 2022·Environmental Geochemistry and Health·Gisela Adelina Rolón-CárdenasAlejandro Hernández-Morales

❮ Previous
Next ❯

Methods Mentioned

BETA
PCR
atomic adsorption spectroscopy
X-ray

Software Mentioned

BLAST
SPSS

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.