Salmonella biofilm development: Structure and significance

Ćwiek, Katarzyna; Bugla-Płoskońska, Gabriela; Wieliczko, Alina

doi:10.5604/01.3001.0013.7866

Cited by 12 publications

(4 citation statements)

References 20 publications

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“…Salmonella enterica as well as other species from the Enterobacteriaceae family are capable of adhering and forming biofilm on different kinds of materials during their life cycle [ 55 ]. Biofilms might be crucial to the survival of Salmonella in adverse environmental conditions, such as the poultry farm environment [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial Resistance and Biofilm Formation Capacity of Salmonella enterica Serovar Enteritidis Strains Isolated from Poultry and Humans in Poland

et al. 2020

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Salmonella enterica ser. Enteritidis (S. enterica ser. Enteritidis) is the most frequently detected serovar in human salmonellosis, and its ability to produce a biofilm and the risk of transmission from animals and food of animal origin to humans are significant. The main aim of the present work was to compare S. enterica ser. Enteritidis strains isolated from poultry and human feces in terms of resistance profiles, prevalence of selected resistance genes, and their potential for biofilm formation, by assessing their biofilm growth intensity, the prevalence and expression of selected genes associated with this phenomenon, and the correlation between increased antimicrobial resistance and biofilm formation ability of the two tested groups of S. enterica ser. Enteritidis. This study showed a difference in antimicrobial resistance (minimal inhibitory concentration value) between S. enterica ser. Enteritidis groups; however, the majority of multidrug-resistant (MDR) strains were isolated from poultry (environmental samples from chicken broilers, turkey broilers, and laying hens). Differences in the prevalence of resistance genes were observed; the most common gene among poultry strains was floR, and that among strains from humans was blaTEM. S. enterica ser. Enteritidis strains isolated from poultry under the tested incubation conditions exhibited better biofilm growth than strains isolated from humans. A higher level of gene expression associated with the production of cellulose was only detected in the S48 strain isolated from poultry. On the other hand, increased expression of genes associated with quorum sensing was observed in two strains isolated from poultry farms and one strain isolated from human feces.

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Section: Discussionmentioning

confidence: 99%

Antimicrobial Resistance and Biofilm Formation Capacity of Salmonella enterica Serovar Enteritidis Strains Isolated from Poultry and Humans in Poland

et al. 2020

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“…The RDAR morphotype is characterized by the expression of the extracellular matrix components amyloid curli fimbriae and the exopolysaccharide cellulose (RÖMLING et al, 2003;ĆWIEK et al, 2019). Curli fimbriae are considered to be expressed in response to nutrient limitation under conditions CHEN, 2007;SIMM et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

The biofilm-forming ability of Salmonella enterica subsp. enterica isolated from swine-feed mills

Laviniki,

Simoni,

Carloto

et al. 2024

Cienc. Rural

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Animal feed has been considered an important vehicle for introducing Salmonella enterica subsp. enterica in pig farms. Salmonella survival and persistence in feed mill environments have been associated with biofilm-forming ability. This study evaluated 54 Salmonella isolates from swine-feed mills for: i. phenotypic expression of curli fimbriae and cellulose; ii. pellicle formation at the air-liquid interface; iii. adhesion on polystyrene microtiter plates; and iv. the presence of the main genes associated with biofilm formation. Regarding phenotypic cell morphology assays, all Salmonella isolates presented morphotype RDAR at 28 °C and SAW at 37 °C. Rigid pellicle formation at the air-liquid interface was observed in 51.85% (28/54), while fragile pellicle was seen in 18.52% (10/54), and 29.62% (16/54) were not able to produce pellicle. Biofilm quantification on polystyrene microtiter plates showed that 98.15% (53/54) of Salmonella isolates were able to form biofilms at 28 °C, while 83.33% (45/54) of the isolates were classified as non-adherent at 37 °C. The genes csgD, fimA, adrA, and bapA were found in all isolates evaluated. These results indicated that Salmonella serovars from swine-feed mills have the biofilm-forming ability.

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“…Salmonella spp. express proteinaceous extracellular fibres known as curli, which are involved in surface and cell-cell contacts, and in promoting community behaviour and host colonisation [ 67 ]. Besides curli, different fimbrial adhesins have been identified with biofilm formation implications that are serotype-dependent [ 40 ].…”

Section: Examples Of the Most Relevant Biofilms In The Food Industmentioning

confidence: 99%

Microbial Biofilms in the Food Industry—A Comprehensive Review

Carrascosa

Raheem

Ramos

et al. 2021

IJERPH

252

109

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Biofilms, present as microorganisms and surviving on surfaces, can increase food cross-contamination, leading to changes in the food industry’s cleaning and disinfection dynamics. Biofilm is an association of microorganisms that is irreversibly linked with a surface, contained in an extracellular polymeric substance matrix, which poses a formidable challenge for food industries. To avoid biofilms from forming, and to eliminate them from reversible attachment and irreversible stages, where attached microorganisms improve surface adhesion, a strong disinfectant is required to eliminate bacterial attachments. This review paper tackles biofilm problems from all perspectives, including biofilm-forming pathogens in the food industry, disinfectant resistance of biofilm, and identification methods. As biofilms are largely responsible for food spoilage and outbreaks, they are also considered responsible for damage to food processing equipment. Hence the need to gain good knowledge about all of the factors favouring their development or growth, such as the attachment surface, food matrix components, environmental conditions, the bacterial cells involved, and electrostatic charging of surfaces. Overall, this review study shows the real threat of biofilms in the food industry due to the resistance of disinfectants and the mechanisms developed for their survival, including the intercellular signalling system, the cyclic nucleotide second messenger, and biofilm-associated proteins.

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Salmonella biofilm development: Structure and significance

Cited by 12 publications

References 20 publications

Antimicrobial Resistance and Biofilm Formation Capacity of Salmonella enterica Serovar Enteritidis Strains Isolated from Poultry and Humans in Poland

Antimicrobial Resistance and Biofilm Formation Capacity of Salmonella enterica Serovar Enteritidis Strains Isolated from Poultry and Humans in Poland

The biofilm-forming ability of Salmonella enterica subsp. enterica isolated from swine-feed mills

Microbial Biofilms in the Food Industry—A Comprehensive Review

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