Genomics and Eco-Physiology of Food-Related Microorganisms

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Foodomics".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 2304

Special Issue Editors


E-Mail Website
Guest Editor
Eastern Regional Research Center, USDA, ARS, Wyndmoor, PA, USA
Interests: genomics; foodborne pathogen detection; molecular biology; biotechnology; food microbiology and safety; Listeria monocytogenes; Escherichia coli

E-Mail Website
Guest Editor
Eastern Regional Research Center, USDA, ARS, Wyndmoor, PA, USA
Interests: genomics; foodborne pathogen detection; molecular biology; biotechnology; food microbiology and safety; Escherichia coli

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit original articles or reviews to a Special Issue of Foods titled “Genomics and Eco-Physiology of Food-Related Microorganisms”.

The aim of this Special Issue of Foods is to use state-of-the-art genomics technologies such as whole-genome sequencing and RNA sequencing to study foodborne bacterial pathogens under different food processing or intervention conditions. In recent years, next-generation sequencing has opened unprecedented opportunities. In food safety, whole-genome sequencing and metagenomics have been successfully applied to trace back sources of contamination, investigate reservoirs of foodborne pathogens, assess the likelihood and magnitude of food safety hazards to cause illness, study the effects of intervention strategies on the microbiome, and predict the likelihood of pathogen/gene transfer.

Original and review papers related to bacterial stress responses are also welcome for inclusion in this Special Issue of Foods.

Dr. Yanhong Liu
Dr. Pina M. Fratamico
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Foods is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • genomics
  • whole-genome sequencing
  • transcriptomics
  • stress responses
  • foodborne pathogens
  • bacterial physiology

Published Papers (1 paper)

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Research

15 pages, 2909 KiB  
Article
Stress Response Mechanisms of Salmonella Enteritidis to Sodium Hypochlorite at the Proteomic Level
by Danhong Li, Shoukui He, Rui Dong, Yan Cui and Xianming Shi
Foods 2022, 11(18), 2912; https://doi.org/10.3390/foods11182912 - 19 Sep 2022
Cited by 2 | Viewed by 1954
Abstract
Salmonella Enteritidis (S. Enteritidis) can adapt to sublethal sodium hypochlorite conditions, which subsequently triggers stress resistance mechanisms in this pathogen. Hence, the current work aimed to reveal the underlying stress adaptation mechanisms in S. Enteritidis by phenotypic, proteomic, and physiological analyses. It [...] Read more.
Salmonella Enteritidis (S. Enteritidis) can adapt to sublethal sodium hypochlorite conditions, which subsequently triggers stress resistance mechanisms in this pathogen. Hence, the current work aimed to reveal the underlying stress adaptation mechanisms in S. Enteritidis by phenotypic, proteomic, and physiological analyses. It was found that 130 ppm sodium hypochlorite resulted in a moderate inhibitory effect on bacterial growth and an increased accumulation of intracellular reactive oxygen species. In response to this sublethal treatment, a total of 492 proteins in S. Enteritidis showed significant differential abundance (p < 0.05; fold change >2.0 or <0.5), including 225 more abundant proteins and 267 less abundant proteins, as revealed by the tandem-mass-tags-based quantitative proteomics technology. Functional characterization further revealed that proteins related to flagellar assembly, two-component system, and phosphotransferase system were in less abundance, while those associated with ABC transporters were generally in more abundance. Specifically, the repression of flagellar-assembly-related proteins led to diminished swimming motility, which served as a potential energy conservation strategy. Moreover, altered abundance of lipid-metabolism-related proteins resulted in reduced cell membrane fluidity, which provided a survival advantage to S. Enteritidis. Taken together, these results indicate that S. Enteritidis employs multiple adaptation pathways to cope with sodium hypochlorite stress. Full article
(This article belongs to the Special Issue Genomics and Eco-Physiology of Food-Related Microorganisms)
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