Publications by authors named "Lijin An"

Plant-growth-promoting bacteria (PGPB) and biochar have attracted increasing attention for remediating the combined pollution of arsenic (As) and cadmium (Cd) and promoting selenium (Se) biofortification. However, their differing effects on the bioavailability of As, Cd, and Se and their absorption by rice are still poorly understood. In this study, PGP Agrobacterium sp.

View Article and Find Full Text PDF
Article Synopsis
  • Core loss spectroscopies offer detailed insights into redox processes in Li-ion battery cathodes, necessitating precise interpretation of their spectral features, particularly the oxygen K-edge spectra of lithium transition-metal oxides (LiMO).
  • Using density-functional theory (DFT), three exchange-correlation functionals were applied to simulate the spectra, with rSCAN showing a better alignment with experimental data compared to PBE and PBE +, especially for energies near the main edge.
  • The study demonstrates that DFT can effectively link experimental spectroscopic signatures to theoretical models, revealing the impact of structural distortions, chemical composition, and magnetism on the differentiation of materials with similar structures and magnetic states.
View Article and Find Full Text PDF
Article Synopsis
  • * Research indicates that bulk redox occurs in LiNiO through Ni-O rehybridization without involving trapped molecular oxygen, which is linked to surface degradation.
  • * Degradation is characterized by oxygen removal upon discharge and persistent nickel reduction, suggesting the need for effective surface stabilization to improve LiNiO performance.
View Article and Find Full Text PDF

Dye contamination in printing and dyeing wastewater has long been a major concern due to its serious impact on both the environment and human health. In the quest for bioremediation of these hazardous dyes, biological resources such as biodegradation bacteria and enzymes have been investigated in severely polluted environments. In this context, the triphenylmethane transporter gene (tmt) was identified in six distinct clones from a metagenomic library of the printing and dyeing wastewater treatment system.

View Article and Find Full Text PDF

Toxic arsenic (As) and trace element selenium (Se) are transformed by microorganisms but their complex interactions in soil-plant systems have not been fully understood. An As- and Se- oxidizing bacterium, Agrobacterium sp. T3F4, was applied to a native seleniferous As-polluted soil to investigate As/Se uptake by the vegetable Brassica rapa L.

View Article and Find Full Text PDF

The microbial metabolism of toxic antimony (Sb) and the bioremediation of Sb-contaminated environments have attracted significant attention recently. This study identified an Sb(III) metallochaperone AntC in the Sb(III) efflux operon antRCA of Comamonas testosteroni JL40. The deletion of AntC significantly increased the intracellular Sb content in strain JL40 and concomitantly diminished resistance to Sb(III).

View Article and Find Full Text PDF

Antimony (Sb) is toxic to ecosystems and potentially to public health via its accumulation in the food chain. Bioavailability and toxicity of Sb have been reduced using various methods for the remediation of Sb-contaminated soil in most studies. However, Sb-contaminated soil remediation by microbial agents has been rarely evaluated.

View Article and Find Full Text PDF

A Gram-negative, aerobic bacterial strain, designated LX-88, was isolated from seleniferous soil in Enshi, Hubei Province, PR China. Strain LX-88oxidized elemental selenium to selenite, and produced carotenoids but not bacteriochlorophyll. The isolate grew optimally at 28 °C, pH 8.

View Article and Find Full Text PDF

Selenium (Se) is an essential trace element for life. Se reduction has attracted much attention in the microbial Se cycle, but there is less evidence for Se oxidation. In particular, it is unknown whether microorganisms oxidise organic Se(-II).

View Article and Find Full Text PDF

The ant operon of the antimony-mining bacterium Comamonas testosterone JL40 confers resistance to Sb(III). The operon is transcriptionally regulated by the product of the first gene in the operon, antR. AntR is a member of ArsR/SmtB family of metal/metalloid-responsive repressors resistance.

View Article and Find Full Text PDF

Antimony, like arsenic, is a toxic metalloid widely distributed in the environment. Microbial detoxification of antimony has recently been identified. Here we describe a novel bacterial P-type antimonite (Sb(III))-translocating ATPase from the antimony-mining bacterium Comamonas testosterone JL40 that confers resistance to Sb(III).

View Article and Find Full Text PDF

A Gram-stain-negative, rod-shaped bacterium, strain H23, was isolated from farmland soil sampled in Enshi City, Hubei Province, PR China. The isolate grew optimally at 28-32 °C, pH 8.0 and with 0.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session834r2uc6u8anu92lt7oniaffvpccocaf): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once