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National Agricultural Library
U.S. Department of Agriculture
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  3. Research Publications (Food Safety)

Research Publications (Food Safety)

This page tracks research articles published in national and international peer-reviewed journals. Recent articles are available ahead of print and searchable by Journal, Article Title, and Category. 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 (requires login) and FDA Grant Funding Agencies (requires login) are also tracked in Scopus.

Displaying 1 - 4 of 4

  1. Rap-protein paralogs of Bacillus thuringiensis: a multifunctional and redundant regulatory repertoire for the control of collective functions.

    • Journal of Bacteriology

    • Quorum Sensing (QS) are mechanisms of synthesis and detection of signaling molecules to regulate gene expression and coordinate behaviors in bacterial populations. In Bacillus subtilis (Bs), multiple paralog Rap-Phr QS systems (receptor-signaling peptide) are highly redundant and multifunctional, interconnecting the regulation of differentiation processes such as sporulation and competence. However, their functions in the B. cereus group are largely unknown.

      • Bacillus cereus

  2. Identification of the Lyso-Form N-acyl Intramolecular Transferase in Low-GC Firmicutes

    • Journal of Bacteriology

    • Bacterial lipoproteins are embedded in the cell membrane of both Gram-positive and Gram-negative bacteria where they serve numerous functions central to cell envelope physiology. Lipoproteins are tethered to the membrane by an N-acyl-S-(mono/di)-acyl-glyceryl-cysteine anchor that is variably acylated depending on genera.

      • Bacterial pathogens
      • Bacillus cereus

  3. The C-Terminal Zwitterionic Sequence of CotB1 Is Essential for Biosilicification of the Bacillus cereus Spore Coat

    • Journal of Bacteriology

    • Silica is deposited in and around the spore coat layer of Bacillus cereus, and enhances the spore's acid resistance. Several peptides and proteins, including diatom silaffin and silacidin peptides, are involved in eukaryotic silica biomineralization (biosilicification). Homologous sequence search revealed a silacidin-like sequence in the C-terminal region of CotB1, a spore coat protein of B. cereus.

      • Bacillus cereus

  4. Slow leakage of Ca-dipicolinic acid from individual Bacillus spores during initiation of spore germination

    • Journal of Bacteriology

    • When exposed to nutrient or non-nutrient germinants, individual Bacillus spores can return to life through germination followed by outgrowth. Laser tweezers Raman spectroscopy, and either differential interference contrast or phase contrast microscopy were used to analyze the slow dipicolinic acid (DPA) leakage (normally ~20% of spore DPA) from individual spores that takes place prior to the lag time, Tlag, when spores begin rapid release of remaining DPA.

      • Bacillus cereus