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Research Publications (Food Safety)

The Food Safety Publications tracks research that is published across national and international peer-reviewed journals. Recent articles are available ahead of print and searchable by Journal, Article Title, and Category. The research publications are tracked across six categories: Bacterial Pathogens, Chemical Contaminants, Natural Toxins, Parasites, Produce Safety, and Viruses. Articles produced by USDA Grant Funding Agencies and FDA Grant Funding Agencies are also tracked.

Displaying 1 - 17 of 17

  1. Hairy root transformation system as a tool for CRISPR/Cas9-directed genome editing in oilseed rape (Brassica napus)

    • Thu, 08/04/2022 - 04:00
    • Frontiers in Plant Science
    • Our study examined the mutation efficiency of the CRISPR/Cas9 method for tryptophan aminotransferase BnaTAA1 genes involved in the auxin biosynthesis pathway. We made nine CRISPR/Cas9 constructs with various promoters driving the expression of a Cas9 from Staphylococcus aureus (SaCas9) or a plant-codon-optimized Streptococcus pyogenes Cas9 (pcoCas9).

      • Bacterial pathogens
      • Staphylococcus aureus
  2. Phycochemical and Biological Activities From Different Extracts of Padina antillarum (Kützing) Piccone

    • Fri, 07/22/2022 - 04:00
    • Frontiers in Plant Science
    • Seaweeds are non-vascular, photosynthetic that inhabit the coastal regions commonly within rocky intertidal or submerged reef-like habitats and have been one of the richest and most promising sources of bioactive primary and secondary metabolites with antimicrobial properties. They selectively absorb elements like Na, K, Ca, Mg, I, and Br from the seawater and accumulate them in their thalli.

      • Bacterial pathogens
      • Staphylococcus aureus
  3. Scrutinizes the Sustainable Role of Halophilic Microbial Strains on Oxygen-Evolving Complex, Specific Energy Fluxes, Energy Flow and Nitrogen Assimilation of Sunflower Cultivars in a Suboptimal Environment

    • Mon, 07/18/2022 - 04:00
    • Frontiers in Plant Science
    • Environmental extremes such as hypersaline conditions are significant threats to agricultural productivity. The sustainable use of halophilic microbial strains was evaluated in plant in a salt stress environment. Oxygen-evolving complex (OEC), energy compartmentalization, harvesting efficiencies (LHE), specific energy fluxes (SEF), and nitrogen assimilation of oilseed crops (Sunflower cultivars) in a suboptimal environment was examined.

      • Bacterial pathogens
      • Bacillus cereus
  4. Physiological and Proteomic Analysis Responsive Mechanisms for Salt Stress in Oat

    • Wed, 06/15/2022 - 04:00
    • Frontiers in Plant Science
    • Oat is considered as a moderately salt-tolerant crop that can be used to improve saline and alkaline soils. Previous studies have focused on short-term salt stress exposure, and the molecular mechanisms of salt tolerance in oat have not yet been elucidated. In this study, the salt-tolerant oat cultivar Vao-9 and the salt-sensitive oat cultivar Bai5 were treated with 6 days of 0 and 150 mmol L−1 salt stress (nNaCl:nNa2SO4 = 1:1).

      • Bacterial pathogens
      • Salmonella
  5. Rhizospheric Bacillus-Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant Ageratina adenophora

    • Tue, 06/14/2022 - 04:00
    • Frontiers in Plant Science
    • The rhizospheric microbial community affects the population establishment of invasive plants in introduced areas, among which Bacillus has numerous functions in promoting plant growth. This study isolated and enriched the Bacillus community in the rhizospheric soil of the invasive plant Ageratina adenophora and the native accompanying plant Rabdosia amethystoides. The effects of these rhizospheric Bacillus communities on the growth and competition of A. adenophora and R.

      • Bacterial pathogens
      • Bacillus cereus
  6. Bacillus cereus Enhanced Medicinal Ingredient Biosynthesis in Glycyrrhiza uralensis Fisch. Under Different Conditions Based on the Transcriptome and Polymerase Chain Reaction Analysis

    • Thu, 06/02/2022 - 04:00
    • Frontiers in Plant Science
    • The aim of this study was to evaluate the effect of Bacillus cereus (B. cereus) on the seedling growth and accumulation of medicinal ingredients of Glycyrrhiza uralensis Fisch. (G. uralensis) under control and salt stress conditions. Our results revealed the different effects of B. cereus on the seedling growth and accumulation of medicinal ingredients particularly in different conditions based on the transcriptome and polymerase chain reaction (PCR) analysis. Under the control condition, B.

      • Bacterial pathogens
      • Bacillus cereus
  7. Application of Cerium Dioxide Nanoparticles and Chromium-Resistant Bacteria Reduced Chromium Toxicity in Sunflower Plants

    • Wed, 05/04/2022 - 05:00
    • Frontiers in Plant Science
    • The continuous increase in the heavy metals concentration in the soil due to anthropogenic activities has become a global issue. The chromium, especially hexavalent chromium, is highly toxic for living organisms due to high mobility, solubility, and carcinogenic properties.

      • Bacterial pathogens
      • Staphylococcus aureus
  8. Differential Protein Expression Analysis of Two Sugarcane Varieties in Response to Diazotrophic Plant Growth-Promoting Endophyte Enterobacter roggenkampii ED5

    • Tue, 11/23/2021 - 16:00
    • Frontiers in Plant Science
    • Plant endophytic bacteria have many vital roles in plant growth promotion (PGP), such as nitrogen (N) fixation and resistance to biotic and abiotic stresses. In this study, the seedlings of sugarcane varieties B8 (requires a low concentration of nitrogen for growth) and GT11 (requires a high concentration of nitrogen for growth) were inoculated with endophytic diazotroph Enterobacter roggenkampii ED5, which exhibits multiple PGP traits, isolated from sugarcane roots.

      • Bacterial pathogens
  9. Impact of Plant Growth-Promoting Rhizobacteria Inoculation and Grafting on Tolerance of Tomato to Combined Water and Nutrient Stress Assessed via Metabolomics Analysis

    • Fri, 06/04/2021 - 16:00
    • Frontiers in Plant Science
    • In the current study, inoculation with plant growth-promoting rhizobacteria (PGPR) and grafting were tested as possible cultural practices that may enhance resilience of tomato to stress induced by combined water and nutrient shortage. The roots of tomato grown on perlite were either inoculated or not with PGPR, applying four different treatments. These were PGPR-T1, a mix of two Enterobacter sp. strains (C1.2 and C1.5); PGPR-T2, Paenibacillus sp.

      • Bacterial pathogens
  10. A VHH-Fc Fusion Targeted to the Chloroplast Thylakoid Lumen Assembles and Neutralizes Enterohemorrhagic E. coli O157:H7

    • Fri, 05/28/2021 - 16:00
    • Frontiers in Plant Science
    • Chimeric fusion proteins comprising a single domain antibody (VHH) fused to a crystallizable fragment (Fc) of an immunoglobulin are modular glycoproteins that are becoming increasingly in demand because of their value as diagnostics, research reagents and passive immunization therapeutics.

      • Escherichia coli O157:H7
      • Bacterial pathogens
  11. A Rationally Designed Bovine IgA Fc Scaffold Enhances in planta Accumulation of a VHH-Fc Fusion Without Compromising Binding to Enterohemorrhagic E. coli

    • Wed, 04/14/2021 - 16:00
    • Frontiers in Plant Science
    • We previously isolated a single domain antibody (VHH) that binds Enterohemorrhagic Escherichia coli (EHEC) with the end-goal being the enteromucosal passive immunization of cattle herds. To improve the yield of a chimeric fusion of the VHH with an IgA Fc, we employed two rational design strategies, supercharging and introducing de novo disulfide bonds, on the bovine IgA Fc component of the chimera.

      • Bacterial pathogens
      • Enterohemorrhagic Escherichia coli
  12. Bioprospecting of Beneficial Bacteria Traits Associated With Tomato Root in Greenhouse Environment Reveals That Sampling Sites Impact More Than the Root Compartment

    • Tue, 04/13/2021 - 16:00
    • Frontiers in Plant Science
    • Tomato is subject to several diseases that affect both field- and greenhouse-grown crops. To select cost-effective potential biocontrol agents, we used laboratory throughput screening to identify bacterial strains with versatile characteristics suitable for multipurpose uses.

      • Bacterial pathogens
      • Seasonal Produce
      • Produce Safety
  13. Bio-Organic Fertilizer: A Green Technology to Reduce Synthetic N and P Fertilizer for Rice Production

    • Tue, 03/23/2021 - 16:00
    • Frontiers in Plant Science
    • Decomposed organic materials, in combination with plant growth-promoting bacteria (PGPB), are environmentally friendly and reduce synthetic fertilizer use in rice production. A bio-organic fertilizer (BoF) was prepared using kitchen waste (79%), chita-dhan (unfilled rice grain) biochar (15%), rock phosphate (5%), and a consortium of 10 PGPB (1%) to supplement 30% nitrogen and to replace triple superphosphate (TSP) fertilizer in rice production with an improvement of soil health.

      • Bacillus cereus
      • Bacterial pathogens
  14. Identification and Control of Latent Bacteria in in vitro Cultures of Sweetpotato [Ipomoea batatas (L.) Lam]

    • Fri, 07/03/2020 - 16:00
    • Frontiers in Plant Science
    • Bacterial microorganisms which are latent in in vitro cultures can limit the efficiency of in vitro methods for the conservation of genetic resources. In this study we screened 2,373 accessions from the in vitro sweetpotato germplasm collection of the International Potato Center in Lima, Peru for bacteria associated with plantlets in tissue culture through a combination of morphological methods and partial 16S rDNA sequencing.

      • Staphylococcus aureus
      • Bacterial pathogens
      • Bacillus cereus
  15. Redomesticating Almond to Meet Emerging Food Safety Needs

    • Fri, 06/12/2020 - 16:00
    • Frontiers in Plant Science
    • Almond is a desirable and high-quality food source where the presence of nut allergens and a vulnerability to aflatoxin and Salmonella contamination represent threats to consumer safety. In 2019, over 1 billion kg. of almonds, representing over 80% of the world total, were produced in California from a relatively few varieties with a very narrow genetic base.

      • Salmonella
      • Aflatoxins
      • Bacterial pathogens
      • Natural toxins
  16. Breeding Crops for Enhanced Food Safety

    • Thu, 04/16/2020 - 03:27
    • Frontiers in Plant Science
    • An increasing global population demands a continuous supply of nutritious and safe food. Edible products can be contaminated with biological (e.g., bacteria, virus, protozoa), chemical (e.g., heavy metals, mycotoxins), and physical hazards during production, storage, transport, processing, and/or meal preparation.

      • Bacterial pathogens
      • Salmonella
  17. Human Pathogen Colonization of Lettuce Dependent Upon Plant Genotype and Defense Response Activation

    • Thu, 01/30/2020 - 03:25
    • Frontiers in Plant Science
    • Fresh produce contaminated with human pathogens may result in foodborne disease outbreaks that cause a significant number of illnesses, hospitalizations, and death episodes affecting both public health and the agribusiness every year. The ability of these pathogens to survive throughout the food production chain is remarkable. Using a genetic approach, we observed that leaf colonization by Salmonella enterica serovar Typhimurium 14028s (S.

      • Bacterial pathogens