13,428 results match your criteria: "Serratia"

Survey and genomic characterization of Serratia marcescens on endophytism, biofilm, and phosphorus solubilization in rice plants.

Environ Sci Pollut Res Int

December 2024

Agricultural Microbiology Laboratory, Brazilian Agricultural Research Corporation Rice and Beans (Embrapa Arroz E Feijão), Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal: 179, Santo Antônio de Goiás, Goiás, CEP: 75375-000, Brazil.

Serratia marcescens, isolated from the rhizosphere of rice crops, has the potential to improve the acquisition of scarce minerals and provide plant growth. Rice seeds microbiolized with S. marcescens and non-microbiolized seeds were sown in a culture medium enriched with non-labile phosphorus, and the roots were analyzed in WinRhizo.

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Rhizosphere bacteria from the Bolivian highlands improve drought tolerance in quinoa (Chenopodium quinoa Willd.).

J Appl Microbiol

December 2024

Instituto de Investigaciones Fármaco Bioquímicas "Dr. Luis Enrique Terrazas Siles", Facultad de Ciencias Farmacéuticas y Bioquímicas, Universidad Mayor de San Andrés, Box 222-43320, 2224 La Paz, Bolivia.

Aims: Drought is one of the most destructive abiotic factors for agricultural production, causing considerable yield losses. Quinoa (Chenopodium quinoa Willd.) is cultivated worldwide in different environmental conditions due to its nutritional characteristics and ability to grow in harsh environments.

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Combined therapeutic option for NDM-producing Serratia Marcescens - an in vitro study from clinical samples.

Braz J Infect Dis

January 2025

Pontifícia Universidade Católica do Paraná, Faculdade de Medicina, Laboratório de Doenças Infecciosas Emergentes, Curitiba, PR Brazil. Electronic address:

Background: Treating NDM-producing bacteria poses a significant challenge, especially for those bacteria inherently resistant to polymyxin, such as Serratia marcescens, necessitating combined therapies.

Objective: To assess in vitro the synergistic effect of different antimicrobial combinations against NDM-producing S. marcescens.

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Previous investigations have explored the involvement of wolves in parasitic and viral diseases, but data on the zoonotic bacteria are limited. The aim of this study was to assess the occurrence of bacterial zoonotic agents in 16 wolf () fecal samples collected in a protected area in Central Italy. spp.

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Impact of the Stress Response on Quaternary Ammonium Compound Disinfectant Susceptibility in Species.

Microorganisms

November 2024

Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein 9301, South Africa.

The well-known problem of antibiotic resistance foreshadows a similar threat posed by microbial resistance to biocides such as disinfectants and antiseptics. These products are vital for infection control, yet their overuse during the COVID-19 pandemic has accelerated the development of resistant microorganisms. This study investigates the molecular mechanisms underlying disinfectant resistance in sp.

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Article Synopsis
  • The study explores the rising issue of bloodstream infections (BSIs) in Rwanda, focusing on the types of bacteria involved and their susceptibility to antibiotics from 2020 to 2022.
  • A total of 1,532 blood culture tests were analyzed, revealing that Gram-negative and Gram-positive bacteria accounted for 48.2% and 51.8% of cases, respectively, with notable species being Staphylococcus aureus and Klebsiella.
  • The findings highlight the effectiveness of various antibiotics, including Amikacin and Meropenem, in treating these infections, and suggest a need for improved strategies in managing antimicrobial resistance (AMR) in Rwanda.
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Dynamic microbial community and metabolic profiling in refrigerated beef: Insights from diverse packaging strategies.

Food Res Int

December 2024

China Meat Research Center, Beijing Academy of Food Sciences, Beijing the Key Laboratory of Meat Processing Technology, Beijing 100068, China. Electronic address:

Extending the shelf life of fresh beef is essential for meat industry. This study explored the microbial community succession, metabolic profile changes, and their interactions during refrigerated storage of beef under different packaging methods. The results showed that compared with air packaging (AP), vacuum packaging (CV) and vacuum skin packaging (VS) maintained higher microbial diversity over longer periods.

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Unlabelled: Bacteria respond to changes in their external environment, such as temperature, by changing the transcription of their genes. We know little about how these regulatory patterns evolve. We used RNA-seq to study the transcriptional response to a shift from 37°C to 15°C in wild-type , , , , , and , as well as ∆ strains of and .

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Article Synopsis
  • * The study involved extracting and characterizing prodigiosin through various scientific methods, demonstrating its effectiveness against multiple bacterial strains and its mild wound healing effects without harming normal skin cells.
  • * Molecular docking simulations further validated prodigiosin's interactions with key proteins, explaining its therapeutic benefits and suggesting its promise as a treatment option in various health-related fields.
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[Analysis of risk factors for onset of acquired Serratia marcescens infection in neonatal intensive care unit].

Zhonghua Wei Zhong Bing Ji Jiu Yi Xue

October 2024

Department of Neonatal Intensive Care Unit, Women and Children's Hospital of Ningbo University, Ningbo 315012, Zhejiang, China. Corresponding author: Li Yanhong, Email:

Objective: To analyze the clinical characteristics of critically ill neonates in the neonatal intensive care unit (NICU) who acquired Serratia marcescens infection for onset or colonization, and to explore the risk factors contributing to the onset of Serratia marcescens infection.

Methods: A retrospective case-control study was conducted by collecting clinical data from NICU neonates at the Women and Children's Hospital of Ningbo University between January 2017 and December 2023. Forty-four neonates with clinical signs and/or symptoms consistent with Serratia marcescens infection, and with Serratia marcescens isolated from specimens, would be enrolled as the infection onset group, while 45 neonates who tested positive for Serratia marcescens in rectal and/or pharyngeal cultures during the same period, but had no clinical signs or infection symptoms, were enrolled as the colonization control group.

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Article Synopsis
  • The study focuses on understanding the complex patterns of -glycosylation in mucin domain proteins, which are important in diseases like cancer.
  • Researchers are developing new methods to analyze these glycoproteins due to the difficulties presented by their diverse glycosylation structures.
  • They combine the use of a targeted protease and ultraviolet photodissociation mass spectrometry to identify and map glycoforms of proteins like TIM-1, MUC-1, and MUC-16, further revealing glycosylation trends in these proteins.
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Whole-genome sequences of fermentative and spoilage-associated lactic acid bacteria, and a isolated from commercial cucumber fermentations.

Microbiol Resour Announc

December 2024

USDA-Agricultural Research Service, Genomics and Bioinformatics Research Unit, Stoneville, Mississippi, USA.

Article Synopsis
  • The text discusses the whole-genome sequences of 16 bacteria found in commercial cucumber fermentations.
  • This includes nine beneficial lactic acid bacteria involved in fermentation and two that are associated with spoilage.
  • The genome assemblies show that half of them are well-organized with fewer than 10 segments (contigs), while the rest consist of fewer than 30 segments.
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Cultivable bacteria contribute to the removal of diclofenac and naproxen mix in a constructed wetland with Typha latifolia.

Environ Geochem Health

November 2024

Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava No.6, Zona Universitaria, C.P. 78210, San Luis Potosí, México.

Constructed wetlands are used to remove diclofenac and naproxen from wastewater. However, the role of plants and their root-associated bacteria in removing these pharmaceuticals is still unknown. In this work, bacteria were isolated from the roots of Typha latifolia cultivated in a constructed wetland to treat a diclofenac and naproxen mix.

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Protein engineering enables Serratia marcescens nuclease A to hydrolyze nucleic acids under high-salt conditions.

Int J Biol Macromol

December 2024

Synthetic Biology Department, WuXi Biologics, 1951 Huifeng West Road, Fengxian District, Shanghai 201400, China. Electronic address:

Article Synopsis
  • Serratia marcescens Nuclease A (SmNucA) is commonly used in biopharmaceutical manufacturing to remove nucleotide impurities, but its effectiveness drops significantly in high-salt environments (up to 500 mM).
  • Researchers developed a variant called HighSalt NucA, which has four Lys mutations to enhance its ability to bind nucleic acids under these salty conditions, also revealing a new catalytic mechanism.
  • Additional experiments showed that other mutations (involving Arg and various hydrophobic or polar residues) also contribute to salt tolerance, allowing HighSalt NucA to maintain its activity and broaden its application potential in nucleic acid removal processes.
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Construction of Chitinase Complexes Using Self-Assembly Systems for Efficient Hydrolysis of Chitin.

ACS Synth Biol

December 2024

Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China-Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China.

Chitin biomass is the second most abundant natural polysaccharide after cellulose on the earth, yet its recalcitrance to degrade and utilize severely limits its application. However, many microorganisms, such as , can secrete a range of free chitinases to degrade chitin, though their activity is typically insufficient to meet industrial demands. In this study, we employed self-assembly systems, named SpyTag/SpyCatcher and SnoopTag/SnoopCatcher, to modularize the molecular design of CHB, ChiB, ChiC, and CBP21 derived from ATCC14756, and we successfully constructed a variety of chitinase complexes.

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Rapid detection of enterobacteria in wastewater treated by microalgal consortia using loop-mediated isothermal amplification (LAMP).

PeerJ

November 2024

Centro de Bioinnovación Antofagasta (CBIA)/Facultad de Ciencias del mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile.

In the present study, nine Enterobacteriaceae species present in wastewater were isolated and identified, and loop-mediated isothermal amplification (LAMP) was developed for the detection of Enterobacteriaceae by designing primers based on the mcr-1, KPC, OXA-23, and VIM genes, which are recognized markers of antimicrobial resistance (AMR) transmission during microalgal bioremediation treatment. The developed assays successfully detected four strains positive for mcr-1 gene-asociated resistance (, , , and ), three strains for KPC gene-associated resistance ( sp., 15499, and ), seven strains for OXA-23 gene-associated resistance (, , , 15922, 51446, , and ), and three strains for resistance to the VIM gene-associated resistance (, sp.

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Article Synopsis
  • Pathogenic bacteria can be a significant issue in farmed shrimp, influenced by environmental factors and handling practices.
  • A study of retail farmed shrimp in Bangladesh found no common pathogenic bacteria but did detect other bacteria, raising concerns about food safety.
  • It emphasizes the need for stricter laws and policies to improve food safety standards in the shrimp industry.
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Article Synopsis
  • Cardiac implantable electronic devices (CIEDs), such as pacemakers, can be life-saving but are not without risks, particularly the threat of infections which occur in 1% to 15% of cases.
  • A case involving a 50-year-old female with a 20-year-old pacemaker revealed a Serratia marcescens infection that led to late-onset endocarditis, requiring open-heart surgery despite antibiotic treatment.
  • The case emphasizes the rarity and complexity of CIED infections, stressing the need for early diagnosis and interdisciplinary management to improve patient outcomes.
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Article Synopsis
  • * In a multicenter study involving 6,740 patients, a 16.5% incidence of SSIs was observed, with the majority being superficial, and many cases detected after hospital discharge; key risk factors included the type of surgical approach and operation duration.
  • * The main pathogens identified were Escherichia coli and Staphylococcus aureus, with significant rates of antibiotic resistance noted, indicating a need for improved preventive measures to reduce complications post-surgery.
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Insect Lipid Metabolism in the Presence of Symbiotic and Pathogenic Viruses and Bacteria.

Adv Exp Med Biol

November 2024

Evolution and Ecophysiology Group, Department of Functional and Evolutionary Entomology, University of Liège - Gembloux Agro-Bio Tech, Gembloux, Belgium.

Insects, like most animals, have intimate interactions with microorganisms that can influence the insect host's lipid metabolism. In this chapter, we describe what is known so far about the role prokaryotic microorganisms play in insect lipid metabolism. We start exploring microbe-insect lipid interactions focusing on endosymbionts, and more specifically the gut microbiota that has been predominantly studied in Drosophila melanogaster.

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Article Synopsis
  • * This research created the Mosquito-Associated Isolate Collection (MosAIC) with 392 bacterial isolates and their genomic data to provide more detailed information than previous studies, which mainly relied on basic genetic markers.
  • * The study also analyzed specific bacterial genera and discovered gene clusters linked to mosquito host interactions, paving the way for future research on how these bacteria affect mosquito behavior and disease transmission.
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The rhizosphere of plants are natural hosts for beneficial microorganisms such as plant growth-promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AMF). The objective of this work was to determine the effect of a consortium of AMF and three strains of PGPR on growth, gas exchange and phosphorus content in poblano pepper plants. An experiment was established in a completely randomized design with factorial arrangement, with two factors: AMF [ and sp.

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Introduction: Osteomyelitis as a condition in adolescents is difficult to diagnose as it is. In patients with sickle cell disease, the diagnosis is even more difficult due to the occurrence of Vaso occlusive crisis which being the most common acute clinical manifestation of sickle cell disease in bone may mimic osteomyelitis. No single clinical presentation, laboratory result, or imaging finding can definitively distinguish these diagnoses.

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Background: COVID-19 patient hospitalization, particularly in intensive care units, exposes them to bacterial and fungi co-infections, which can have very serious consequences, including increased mortality. In addition, antibiotic resistance among pathogens is a hidden threat behind COVID-19.

Methods: In the period from 2020 September to 2021 August, bacterial isolates from COVID-19 patients admitted to the ICU of Sina Hospital in Hamadan, Iran, were collected and identified based on standard biochemical tests.

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