Weissella and the two Janus faces of the genus

Kim, Eiseul; Yang, Seung-Min; Kim, Hae Yeong

doi:10.1007/s00253-023-12387-6

Cited by 10 publications

(10 citation statements)

References 69 publications

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“…Weissella is widely present in food, and it is an essential component of the human intestinal flora. Kim et al reported that Weissella had a promising application as a probiotic in a variety of fermented foods, contributing to the enhancement of flavor and texture of fermented milks and vegetables ( Kim, Yang & Kim, 2023 ). There were significant changes in the fungal community as well.…”

Section: Resultsmentioning

confidence: 99%

Dynamics of nutrients, sensory quality and microbial communities and their interactions during co-fermentation of pineapple by-products and whey protein

Luo,

Xiao,

Suo

et al. 2024

Food Chemistry: X

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Section: Resultsmentioning

confidence: 99%

Dynamics of nutrients, sensory quality and microbial communities and their interactions during co-fermentation of pineapple by-products and whey protein

Luo,

Xiao,

Suo

et al. 2024

Food Chemistry: X

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“…Members of this genus are alpha-hemolytic, Gram-positive coccobacilli that usually grow in chains. They are vancomycin-resistant and catalase-negative, showing a pyrrolidinyl-β-naphthylamide (PYR) negative reaction with bile-esculin positive [ 4 ]. Analysis by MALDI-TOF is essential for the identification of bacteria from clinical specimens, as they may be missed or misidentified.…”

Section: Discussionmentioning

confidence: 99%

“…It has also been postulated that it shows drug resistance to vancomycin due to its empirical use without proper diagnosis [ 3 ]. It was earlier known as Lactobacillus confuses, which is generally confused with members of the Leuconostoc, Pediococcus, and Lactobacillus genera [ 4 ]. 'Weissella,' the term, was named after the German microbiologist Norbert Weiss [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Weissella confusa Causing Vancomycin-Resistant Septicemia Infection in a Pediatric Patient: A Case Report From a University Teaching Hospital in North India

Azim¹,

Singh²,

Venkatesh³

et al. 2023

Cureus

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Weissella confusa is a Gram-positive coccus usually found in the microbiota of humans and the environment. Different studies quote that it has caused infections in humans under unfavourable conditions. A case report causing septicemia in an 11-year-old male patient diagnosed with acute pancreatitis and having acute respiratory distress syndrome (ARDS) is presented. The patient was successfully treated with ceftazidime and a piperacillin-tazobactam combination after confirmation of bacteria by matrix-assisted laser desorption and ionisation-time of flight (MALDI-TOF-MS) and antimicrobial sensitivity testing (AST) performed as per the latest Clinical and Laboratory Standard Institute (CLSI) guidelines. The patient was discharged asymptomatically after drainage of fluid and was managed conservatively. Correct identification by the automated method is important for this species and also to find its mode of infection. Because of its similarities to other vancomycin-resistant cocci, isolates of this species might be difficult to identify, leading to drug resistance. A literature review in tabulated form is summarised.

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“…1b). Among them, only S. salivarius is a human commensal bacterium, while the others are lactic acid bacteria commonly found in fermented foods 23,24 . Furthermore, we investigated the relationship between the presence of bacteria in human faeces and the body mass index (BMI) of donors (Fig.…”

Section: Isolation Of Eps-producing Human Commensal Bacteria S Saliva...mentioning

confidence: 99%

Sucrose-preferring gut microbes prevent host obesity by producing exopolysaccharides

Kimura,

Shimizu,

Miyamoto

et al. 2024

Preprint

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Commensal bacteria affect host health by producing various metabolites from dietary carbohydrates via bacterial glycometabolism; however, the underlying mechanism of action remains unclear. Here, we identified Streptococcus salivarius as a unique anti-obesity commensal bacterium. We found that S. salivarius may prevent host obesity caused by excess sucrose intake via the exopolysaccharide (EPS)-short-chain fatty acid (SCFA)-carbohydrate metabolic axis. Healthy human donor-derived S. salivarius produced high EPS levels from sucrose but not from other sugars. S. salivarius abundance was significantly decreased in human donors with obesity, and the EPS-SCFA bacterial carbohydrate metabolic process was attenuated. Our findings reveal an important mechanism by which host–commensal interactions in glycometabolism affect energy regulation, suggesting an approach for preventing lifestyle-related diseases via prebiotics and probiotics by targeting bacteria and EPS metabolites.

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Weissella and the two Janus faces of the genus

Cited by 10 publications

References 69 publications

Dynamics of nutrients, sensory quality and microbial communities and their interactions during co-fermentation of pineapple by-products and whey protein

Dynamics of nutrients, sensory quality and microbial communities and their interactions during co-fermentation of pineapple by-products and whey protein

Weissella confusa Causing Vancomycin-Resistant Septicemia Infection in a Pediatric Patient: A Case Report From a University Teaching Hospital in North India

Sucrose-preferring gut microbes prevent host obesity by producing exopolysaccharides

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