Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Listeria monocytogenes loss of cultivability on carrot is associated with the formation of mesosome-like structures

Journal Article · · International Journal of Food Microbiology
 [1];  [2];  [2];  [2];  [3];  [2];  [2]
  1. USDA-ARS Beltsville Agricultural Research Center, Beltsville, MD (United States); Cornell University, Ithaca, NY (United States)
  2. USDA-ARS Beltsville Agricultural Research Center, Beltsville, MD (United States)
  3. University of Maryland, College Park, MD (United States); University of Georgia, Athens, GA (United States)

Raw carrot is known to have antimicrobial activity against Listeria monocytogenes, but the mechanism of action has not been fully elucidated. In this study, we examined carrot antilisterial activity against several strains of Listeria species (including L. grayi, L. innocua, L. seeligeri, and L. welshimeri) and L. monocytogenes. A representative strain of L. monocytogenes was subsequently used for further characterizing carrot antilisterial activity. Exposure to fresh-cut carrot for 15 min resulted in a similar loss of cultivability, ranging from 2.5 to 4.7 log units, across all Listeria strains evaluated. L. monocytogenes recovered from the fresh-cut surface of different raw carrots was 1.6 to 4.1 log lower than levels obtained from paired boiled carrot samples with abolished antilisterial activity. L. monocytogenes levels recovered from fresh-cut carrot were 2.8 to 3.1 log lower when enumerated by culture-dependent methods than by the culture-independent method of PMAxx-qPCR, a qPCR assay that is performed using DNA pre-treated to selectively sequester DNA from cells with injured membranes. These results suggested that L. monocytogenes loss of cultivability on fresh-cut carrot was not associated with a loss of L. monocytogenes cell membrane integrity and putative cell viability. Transmission electron microscopy imaging revealed that L. monocytogenes rapidly formed mesosome-like structures upon exposure to carrot fresh-cut surface but not upon exposure to boiled carrot surface, suggesting there may be an association between the formation of these mesosome-like structures and a loss of cultivability in L. monocytogenes. As a result, further research is necessary to conclude the causality of this association.

Research Organization:
Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0014664
OSTI ID:
2425559
Journal Information:
International Journal of Food Microbiology, Journal Name: International Journal of Food Microbiology Journal Issue: C Vol. 390; ISSN 0168-1605
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Transmission electron microscopic observations of membrane effects of antibiotic cecropin B on Escherichia coli journal October 2003
Quality of carrots as affected by pre‐ and postharvest factors and processing journal June 2013
Isolation and antimicrobial activity of the phytoalexin 6-methoxymellein from cultured carrot cells journal January 1983
The global burden of listeriosis: a systematic review and meta-analysis journal November 2014
Selective antibacterial activity of a novel lactotransferrin-derived antimicrobial peptide LF-1 against Streptococcus mutans journal July 2022
Riccardin C derivatives cause cell leakage in Staphylococcus aureus journal October 2015
A review of microbial injury and recovery methods in food journal September 2008
Peroxyacetic acid and chlorine dioxide unlike chlorine induce viable but non-culturable (VBNC) stage of Listeria monocytogenes and Escherichia coli O157:H7 in wash water journal December 2021
Growth capacity of Listeria monocytogenes in ingredients of ready-to-eat salads journal February 2016
Ralstonia insidiosa induces cell aggregation of Listeria monocytogenes journal September 2016
Susceptibility of foodborne pathogens to sanitizers in produce rinse water and potential induction of viable but non-culturable state journal June 2020
Effects of temperature abuse on the growth and survival of Listeria monocytogenes on a wide variety of whole and fresh-cut fruits and vegetables during storage journal July 2022
Survival and growth behaviour of Listeria monocytogenes in ready-to-eat vegetable salads journal August 2022
Survival and distribution of Escherichia coli on diverse fresh-cut baby leafy greens under preharvest through postharvest conditions journal December 2011
Growth potential of Salmonella spp. and Listeria monocytogenes in nine types of ready-to-eat vegetables stored at variable temperature conditions during shelf-life journal June 2012
Growth potential of Listeria monocytogenes in twelve different types of RTE salads: Impact of food matrix, storage temperature and storage time journal May 2019
Dynamics of Listeria monocytogenes and the microbiome on fresh-cut cantaloupe and romaine lettuce during storage at refrigerated and abusive temperatures journal March 2022
A new class of synthetic retinoid antibiotics effective against bacterial persisters journal March 2018
Multistate Outbreak of Listeriosis Associated with Cantaloupe journal September 2013
Hospital-Acquired Listeriosis Outbreak Caused by Contaminated Diced Celery—Texas, 2010 journal September 2012
Induction, detection, formation, and resuscitation of viable but non‐culturable state microorganisms journal December 2019
Practical in‐storage interventions to control foodborne pathogens on fresh produce journal June 2021
Water Activity of Fresh Foods journal March 1982
The lethal effect of carrot onListeriaspecies journal June 1991
An investigation of the antibacterial effect of carrot on Listeria monocytogenes journal July 1992
Antimicrobial activity of shredded carrot extracts on food‐borne bacteria and yeast journal February 1994
Activity and mechanism of the action of zeylasterone against Bacillus subtilis journal May 2008
Induction of 6‐Methoxymellein and Resistance to Storage Pathogens in Carrot Slices by UV‐C journal January 1993
Inhibition of Foodborne Pathogens by Native Microflora Recovered from Fresh Peeled Baby Carrot and Propagated in Cultures journal April 2007
Inhibitory effects of raw carrots on Listeria monocytogenes journal June 1990
Mesosomes: membranous bacterial organelles journal December 1975
Viable-but-Nonculturable Listeria monocytogenes and Salmonella enterica Serovar Thompson Induced by Chlorine Stress Remain Infectious journal April 2018
Fitting Linear Mixed-Effects Models Using lme4 journal January 2015
Simplified Agar Plate Method for Quantifying Viable Bacteria journal October 1997
Multistate Outbreak of Listeriosis Associated with Packaged Leafy Green Salads, United States and Canada, 2015–2016 journal August 2019
Advances and Challenges in Viability Detection of Foodborne Pathogens journal November 2016
Anti-listeria Activities of Linalool and Its Mechanism Revealed by Comparative Transcriptome Analysis journal December 2019
Silver Nanoparticles Combined With Naphthoquinones as an Effective Synergistic Strategy Against Staphylococcus aureus journal July 2018
Antimicrobial Activity and Mode of Action of Celastrol, a Nortriterpen Quinone Isolated from Natural Sources journal March 2021
Changes in the Ultrastructure of Staphylococcus aureus Treated with Cationic Peptides and Chlorhexidine journal December 2020
Detection and Potential Virulence of Viable but Non-Culturable (VBNC) Listeria monocytogenes: A Review journal January 2021
Leuconostoc mesenteroides Strains Isolated from Carrots Show Probiotic Features journal November 2021
Mesosomes, Unique Membranous Structures in Bacteria journal February 2014
Changes in Populations of Listeria monocytogenes Inoculated on Packaged Fresh-Cut Vegetables journal February 1998
ComBase Models Are Valid for Predicting Fate of Listeria monocytogenes on 10 Whole Intact Raw Fruits and Vegetables journal April 2021
Wet versus Dry Inoculation Methods Have a Significant Effect of Listeria monocytogenes Growth on Many Types of Whole Intact Fresh Produce journal October 2021

Figures / Tables (7)