Janira Prichula

ORCID: 0000-0002-6767-8890
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About
Contact & Profiles
Research Areas
  • Probiotics and Fermented Foods
  • Milk Quality and Mastitis in Dairy Cows
  • SARS-CoV-2 and COVID-19 Research
  • Antimicrobial Resistance in Staphylococcus
  • Gut microbiota and health
  • Bacteriophages and microbial interactions
  • Aquaculture disease management and microbiota
  • Food Safety and Hygiene
  • Plant Virus Research Studies
  • Genomics and Phylogenetic Studies
  • Amphibian and Reptile Biology
  • Animal Virus Infections Studies
  • Enterobacteriaceae and Cronobacter Research
  • Identification and Quantification in Food
  • Salmonella and Campylobacter epidemiology
  • Primate Behavior and Ecology
  • Bacterial Identification and Susceptibility Testing
  • Phytase and its Applications
  • Food composition and properties
  • SARS-CoV-2 detection and testing
  • Microbial infections and disease research
  • Mycobacterium research and diagnosis
  • Microplastics and Plastic Pollution
  • Microbial Metabolism and Applications
  • Antimicrobial Peptides and Activities

Harvard University
2022-2024

Universidade Federal de Ciências da Saúde de Porto Alegre
2013-2024

Massachusetts Eye and Ear Infirmary
2023-2024

University of Health Sciences
2015-2022

University of Health Sciences Antigua
2015-2022

Microbiologie de l’alimentation au service de la santé
2022

St Petersburg University
2020

Saint Petersburg State Electrotechnical University
2020

Universidade de São Paulo
2020

RMIT University
2020

Enterococci are gut microbes of most land animals. Likely appearing first in the guts arthropods as they moved onto land, diversified over hundreds millions years adapting to evolving hosts and host diets. Over 60 enterococcal species now known. Two species,

10.1073/pnas.2310852121 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2024-02-28

New ecosystems are being actively mined for new bioactive compounds. Because of the large amount unexplored biodiversity, bacteria from marine environments especially promising. Further, host-associated microbes special interest because their low toxicity and compatibility with host health. Here, we identified characterized biosynthetic gene clusters encoding antimicrobial compounds in enterococci recovered fecal samples wild animals remote human-affected ecosystems. Putative genomes 22...

10.3390/md19060328 article EN cc-by Marine Drugs 2021-06-06

In this study, we analyzed 340 whole genomes of SARS-CoV-2, which were sampled between April and November 2020 in 33 cities Rio Grande do Sul, South Brazil. We demonstrated the circulation two novel emergent lineages, VUI-NP13L VUI-NP13L-like, five major lineages that had already been assigned (B.1.1.33, B.1.1.28, P.2, B.1.91, B.1.195). P.2 a massive spread October 2020. Constant consistent genomic surveillance is crucial to identify newly emerging SARS-CoV-2 Brazil guide decision making...

10.1080/22221751.2021.1949948 article EN cc-by Emerging Microbes & Infections 2021-01-01

Genomic surveillance of SARS-CoV-2 is paramount for understanding viral dynamics, contributing to disease control. This study analyzed genomic diversity in Rio Grande do Sul (RS), Brazil, including the first reported case each Regional Health Coordination and cases from three epidemic peaks. Ninety genomes RS were sequenced through comparison with datasets available GISAID phylogenetic inference mutation analysis. Among cases, we found following lineages: B.1 (33.3%), B.1.1.28 (26.7%), B.1.1...

10.1016/j.meegid.2021.105144 article EN cc-by-nc-nd Infection Genetics and Evolution 2021-11-17

Gut microbiota exerts a fundamental role in human health and increased evidence supports the beneficial of probiotic microorganisms maintenance intestinal health. Enterococcus durans LAB18S was previously isolated from soft cheese showed some desirable vitro properties, for that reason its genome sequenced evaluated genes can be relevant activity are involved selenium metabolism. Genome sequencing performed using Illumina MiSeq System. A variety potentially associated with including adhesion...

10.1590/1678-4685-gmb-2021-0201 article EN cc-by Genetics and Molecular Biology 2022-01-01

ABSTRACT Enterococci are commensal gut microbes of most land animals. They diversified over hundreds millions years adapting to evolving hosts and host diets. Of 60 known enterococcal species, Enterococcus faecalis E. faecium uniquely emerged in the antibiotic era among leading causes multidrug resistant hospital-associated infection. The basis for association particular species with a is largely unknown. To begin deciphering traits that drive association, assess pool -adapted genes from...

10.1101/2023.05.18.540996 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2023-05-19

A simple and straightforward methodology using magnetic ionic liquids was proposed for high throughput DNA extraction a multiwell platform followed by real time polymerase chain reaction.

10.1039/d3ay00751k article EN Analytical Methods 2023-01-01

Enterococci are commensals that proliferated as animals crawled ashore hundreds of millions years ago. They also leading causes multidrug-resistant hospital-acquired infections. While most studies driven by clinical interest, comparatively little is known about enterococci in the wild or effect human activity on them. Pharmaceutical pollution and runoff from other activities encroaching widely into natural habitats. To assess their reach remote habitats, we investigated identity, genetic...

10.1128/aem.01662-20 article EN Applied and Environmental Microbiology 2020-07-31

The fidelity of the genomes is defended by mechanism known as Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) systems. Three Type II CRISPR systems (CRISPR1- cas, CRISPR2 and CRISPR3-cas) have been identified in enterococci isolates from clinical environmental samples. aim this study was to observe distribution CRISPR1-cas, CRISPR3-cas non-clinical strains Enterococcus faecalis faecium food fecal samples, including wild marine animals. presence CRISPRs evaluated PCR 120...

10.1590/1519-6984.183375 article EN cc-by Brazilian Journal of Biology 2018-10-03

Gut microbiota are influenced by factors such as diet, habitat, and social contact, which directly affect the host's health. Studies related to gut in non-human primates increasing worldwide. However, little remains known about bacterial composition wild Brazilian monkeys. Therefore, we studied fecal of black capuchin monkey (Sapajus nigritus) (n=10) populations from two different Atlantic Forest biome fragments (five individuals per fragment) south Brazil. The community was identified via...

10.1016/j.crmicr.2021.100048 article EN cc-by-nc-nd Current Research in Microbial Sciences 2021-07-10

Background and Objective: The buffalo milk consumption derivatives have increased significantly in the last year due to healthy food demand.Enterococci play a beneficial role during maturation of some cheese sausages; they been used as probiotics humans animals.On other hand, are indicators fecal contamination frequently associated with foodborne illnesses by biogenic amines.The aim this study was evaluate presence virulence profiles enterococci strains isolated from raw buffaloʼs...

10.3923/jm.2017.248.254 article EN Research Journal of Microbiology 2017-09-15

Melanophryniscus admirabilis (admirable red-belly toad) is a microendemic and critically endangered species found exclusively along 700 m of the Forqueta River, in fragment Atlantic Forest southern Brazil. One greatest concerns regarding conservation this extensive use pesticides areas surrounding their natural habitat. In recent years, adaptation persistence animal human-impacted environments have been associated with microbiota. Therefore, present study aimed to characterize oral bacterial...

10.3390/microorganisms9020220 article EN cc-by Microorganisms 2021-01-22

O leite de búfala é utilizado principalmente para a produção queijo mussarela.A procura por produtos derivados tem aumentado no mercado, consideravelmente,

10.4322/rbcv.2014.056 article PT Revista Brasileira de Ciência Veterinária 2013-01-01

The purpose of this study was to compare the composition and stability bacteria fungi communities during propagation sourdoughs prepared with organic or conventional whole wheat (Triticum aestivum) flours from South Brazil. Sourdoughs were samples collected different fermentation times (0 216 h). Total DNA sourdough extracted 16S rRNA gene Internal Transcribed Spacer region sequenced by MiSeq-Illumina. A total 43 56 OTUs identified defined as core taxa in bacterial fungal communities,...

10.1590/0001-3765202220220091 article EN cc-by Anais da Academia Brasileira de Ciências 2022-01-01

ABSTRACT: Enterococci have been used as sentinel organisms for monitoring antimicrobial resistance in food, humans, and other animals. In this sense, the present study evaluated susceptibility profile presence of genes associated with to erythromycin (msrC ermB) tetracycline [tet(M) and/or tet(L)] enterococci isolated from raw sheep’s milk cheeses (colonial, feta-, pecorino-type) South region Brazil. A total 156 were (n=80) cheese (n=76) samples, identified by MALDI-TOF. Enterococcus...

10.1590/0103-8478cr20220288 article EN cc-by Ciência Rural 2023-01-01

International Conference "Bioinformatics: from Algorithms to Applications" (BiATA) is one of the few international conferences that bring together both programmers and algorithm developers creating tools for a wide spectrum modern bioinformatics studies researchers conducting those experiments interested in finding reliable easy use data analysis.COVID-19 this year forced online.Virtual offer new experience on positive side allowed more participants attend meetings would be too hard or...

10.1186/s12859-020-03838-2 article EN cc-by BMC Bioinformatics 2020-12-01

Listeria monocytogenes is the foodborne pathogen responsible for a bacterial infection called listeriosis. Here, we present whole-genome sequences of two L. serovars, 1/2a and 4b, which are considered most prevalent in food processing plants listeriosis outbreaks, respectively.

10.1128/genomea.01494-15 article EN Genome Announcements 2015-12-18

<title>Abstract</title> New ecosystems are being actively mined for new bioactive compounds. Because of the large amount unexplored biodiversity, bacteria from marine environments especially promising. Further, host-associated microbes special interest because their low toxicity and compatibility with host health. Here we identified characterized biosynthetic gene clusters encoding antimicrobial compounds in enterococcal recovered fecal samples wild animals remote human-affected ecosystems....

10.21203/rs.3.rs-139982/v1 preprint EN cc-by Research Square (Research Square) 2021-01-07
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