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Endophytic Enterobacter sp. YG-14 mediated arsenic mobilization through siderophore and its role in enhancing phytostabilization.
J Hazard Mater
March 2024
Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, Hunan, PR China. Electronic address:
Article Synopsis
- Soil arsenic is toxic to plants, but the endophyte Enterobacter sp. YG-14 can help absorb arsenic while promoting plant health and growth.
- Through a mutant strain (ΔentD), the study showed that YG-14 can mobilize iron and arsenic from soil by secreting enterobactin, making them more available to plants.
- The research found that YG-14 enhances arsenic accumulation in host plants and decreases oxidative damage, highlighting its potential for improving phytoremediation efforts.
Isolation and characterization of Escherichia albertii originated from the broiler farms in Mississippi and Alabama.
Vet Microbiol
April 2022
Department of Animal Science, The University of Tennessee, Knoxville, TN, 37996, USA. Electronic address:
Escherichia albertii is an emerging foodborne enteropathogen with increasing outbreaks worldwide, particularly in Japan recently. However, major features of this zoonotic pathogen, such as prevalence, virulence, and antibiotic resistance (AR), still remain under characterized. In a recent pilot study, we reported isolation of E.
View Article and Find Full Text PDFEvaluation of the Immunogenic Response of a Novel Enterobactin Conjugate Vaccine in Chickens for the Production of Enterobactin-Specific Egg Yolk Antibodies.
Front Immunol
September 2021
Department of Animal Science, The University of Tennessee, Knoxville, TN, United States.
Passive immunization with specific egg yolk antibodies (immunoglobulin Y, IgY) is emerging as a promising alternative to antibiotics to control bacterial infections. Recently, we developed a novel conjugate vaccine that could trigger a strong immune response in rabbits directed against enterobactin (Ent), a highly conserved siderophore molecule utilized by different Gram-negative pathogens. However, induction of Ent-specific antibodies appeared to be affected by the choice of animal host and vaccination regimen.
View Article and Find Full Text PDFEnterobactin-specific antibodies inhibit in vitro growth of different gram-negative bacterial pathogens.
Vaccine
November 2020
Department of Animal Science, The University of Tennessee, Knoxville, TN, USA. Electronic address:
Enterobactin (Ent)-mediated high affinity iron acquisition is critically important for Gram-negative bacterial pathogens to survive and infect the host. Recently, we reported an efficient method to prepare novel Ent conjugate vaccines for inducing high level of Ent-specific antibodies, which displayed similar bacteriostatic feature as lipocalins, the host innate immune effectors with potent Ent-binding ability. The Ent-specific antibodies also showed a significant advantage over lipocalins by cross-reacting to various Ent derivatives including salmochelins, the glycosylated Ent that can help enteric pathogens evade the siderophore sequestration by host lipocalins.
View Article and Find Full Text PDFEvaluation of in ovo vaccination of DNA vaccines for Campylobacter control in broiler chickens.
Vaccine
June 2019
Department of Animal Science, The University of Tennessee, 2506 River Drive, Knoxville, TN 37996, USA. Electronic address:
Campylobacter is the leading bacterial cause of human enteritis in developed countries. Chicken is a major natural host of Campylobacter. Thus, on-farm control of Campylobacter load in poultry would reduce the risk of human exposure to this pathogen.
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