Article
Food Science & Technology
Lorenz Timo Ryser, Emmanuelle Arias-Roth, Helene Berthoud, Celine Delbes-Paus, Christophe Chassard, Remy Bruggmann, Stefan Irmler
Summary: This study investigated the influence of Morganella morganii isolated from cheese on the formation of biogenic amines. It was found that M. morganii could survive in the outer layers of the cheese but no longer inside. Cheeses with cadaverine-forming strains exhibited a decreasing gradient of cadaverine concentration from the outside to the inside, while putrescine was present in cheeses with putrescine-forming strains. All cheeses containing M. morganii also contained histamine with concentrations below 50 mg/kg.
INTERNATIONAL DAIRY JOURNAL
(2022)
Article
Microbiology
Kevin B. Laupland, David L. Paterson, Felicity Edwards, Adam G. Stewart, Patrick N. A. Harris
Summary: The incidence of Morganella morganii bloodstream infections is increasing in Queensland, Australia, with elderly male subjects and individuals with comorbidities at the highest risk. Although antibiotic resistance is not a major contributor to the current burden, ongoing surveillance is necessary.
MICROBIOLOGY SPECTRUM
(2022)
Article
Veterinary Sciences
Hooman Rahmati Holasoo, Iradj Ashrafi Tamai, Wolfram Manuel Bruck, Babak Pakbin, Alireza Nasiri, Amirparsa Azizi
Summary: The study identified the threat posed by Morganella morganii-infected medicinal leeches to human and animal health, highlighting the importance of monitoring and treating this bacteria.
VETERINARY SCIENCES
(2022)
Article
Microbiology
Xi Guo, Jing Wang, Pan Wu, Shujie Li, Lu Feng, Bin Liu, Lei Wang
Summary: A molecular serotyping scheme for Morganella morganii was developed based on genetic variation, along with a traditional serotyping scheme that was shown to be consistent. Additionally, a microsphere-based suspension array with high specificity was introduced. This work provides an important tool for the detection and epidemiological surveillance of M. morganii, with potential wide applicability.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Microbiology
Lorenz Timo Ryser, Emmanuelle Arias-Roth, Vincent Perreten, Stefan Irmler, Remy Bruggmann
Summary: The bacterium Morganella morganii can produce toxic biogenic amines in fish products, and this study aimed to characterize the phenotype and genotype of cheese isolates in relation to amine formation. The cheese isolates are classified as subspecies sibonii due to their trehalose fermentation ability. Comparative genomics revealed a potential distinction between subspecies morganii and sibonii, with antimicrobial resistance genes being identified in the chromosome of all cheese strains.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Fisheries
Dongdong Wei, Shuangyan Xiao, Wenyu Liao, Qing Yu, Shuyu Han, Jingu Shi, Jinzhao He, Pengfei Li
Summary: This study reports a large death of cultured bullfrog caused by natural infection of Morganella morganii. The study also investigates the drug resistance, pathogenesis, and phylogenetic relationships of the isolated strain from environmental and clinical samples. The bacterium was identified as M. morganii through 16S rRNA sequencing. Experimentally infected bullfrog exhibited similar clinical manifestations, indicating the virulence of the strain. The LD50 was determined to be 2.4 x 104 CFU/mL. This is the first description of M. morganii natural infection and its pathogenesis in bullfrog, posing potential risks to animal and human health.
Article
Food Science & Technology
Honghong Yu, Yazhuo Li, Shiling Lu, Qingling Wang, Juan Dong
Summary: This study demonstrated that thyme microcapsules inhibited the growth of Morganella morganii and significantly reduced histamine accumulation by targeting specific genes. Thyme microcapsules showed higher inhibitory potential compared to thyme essential oil, suggesting their potential application in the production of traditional Chinese smoked horsemeat sausages.
Article
Food Science & Technology
Zhenxiao Sun, Yi Zhang, Xinping Lin, Sufang Zhang, Yingxi Chen, Chaofan Ji
Summary: This study analyzed the inhibition pattern and mechanism of Lpb. plantarum on M. morganii, as well as the mechanisms behind changes in different biogenic amines. The results showed that Lpb. plantarum could significantly inhibit the biogenic amines of M. morganii in a weak acid environment, primarily through metabolism. This is important for inhibiting the accumulation of harmful metabolites in fermented foods.
Article
Engineering, Environmental
D. Ramya, A. Joseph Thatheyus, S. Jemima Balaselvi Juliana, N. Jennifer Michellin Kiruba, Deborah Gnana A. Selvam
Summary: This study investigates the mechanism and physical characterization of zinc (II) sequestration by the Morganella morganii ACZO5 strain. It is found that this strain can produce biofilms and adsorb zinc (II) through physical adsorption. Additionally, a novel chemisorption mechanism is proposed for further study.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Biology
Wei-Hsuan Huang, Chin-Chuan Kao, Yan-Chiao Mao, Chih-Sheng Lai, Kuo-Lung Lai, Chung-Hsu Lai, Chien-Hao Tseng, Yao-Ting Huang, Po-Yu Liu
Summary: Naja atra bites can result in severe soft tissue injury and are prone to infections. This study reports the first coinfection with Shewanella algae and Morganella morganii from a Naja atra bite wound, with resistome analysis using whole genome sequencing.
Article
Environmental Sciences
Umberto Romani-Cremaschi, Simona Zoppi, Virginia Mattioda, Tania Audino, Letizia Marsili, Katia Varello, Barbara Iulini, Cristina Marra, Roberto Zoccola, Roberta Battistini, Alessandro Dondo, Fulvio Garibaldi, Enrica Berio, Alessandra Pautasso, Massimiliano Rosso, Davide Ascheri, Cristina Casalone, Carla Grattarola, Federica Giorda
Summary: This report describes a case of septicemia by Morganella morganii in a juvenile male Cuvier's beaked whale with concurrent renal crassicaudiasis. The animal stranded along the Ligurian coastline and underwent a systematic post-mortem examination to determine the cause of death. This is the first description of M. morganii septicemia with CNS involvement in a wild cetacean.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Infectious Diseases
Ifra Ferheen, Roberto Spurio, Laura Mancini, Stefania Marcheggiani
Summary: This study focuses on a multidrug-resistant bacterial strain isolated from plastic substrates of a volcanic lake in central Italy, confirming the role of plastic in fostering and spreading antibiotic-resistant genes. It is the first study characterizing extended-spectrum beta-lactamase-producing Morganella morganii isolated from the biofilm of plastic substrates, highlighting the potential toxicity of plastic in harboring and dispersing virulent, multidrug-resistant, opportunistic human pathogens.
JOURNAL OF GLOBAL ANTIMICROBIAL RESISTANCE
(2023)
Article
Medical Laboratory Technology
Huixuan Shi, Xianrui Chen, Yonghua Yao, Jinping Xu
Summary: The increase in rare opportunistic microbial infections caused by Morganella morganii in pediatric urinary tract infections (UTIs) is concerning. This study analyzed the risk factors, antimicrobial susceptibility, and clinical characteristics of M. morganii infection. Nephrotic syndrome was the most common comorbidity, and some patients were immunosuppressed. The majority of patients showed good response to third-generation cephalosporins antibiotic therapy.
JOURNAL OF CLINICAL LABORATORY ANALYSIS
(2022)
Article
Ophthalmology
Kushal Umeshbhai Agrawal, Kashmira Limaye Joshi, Maikel Gad
Summary: This case report presents a rare case of acute post-operative Morganella morganii endophthalmitis in a 60-year-old Indian female. The patient was successfully treated with intravitreal imipenem and achieved the best visual outcome reported to date for this condition.
OCULAR IMMUNOLOGY AND INFLAMMATION
(2023)
Article
Ophthalmology
Michael Kvopka, Wengonn Chan, Duleepa Baranage, David Sia
Summary: This article describes the first reported case of endophthalmitis caused by Morganella morganii and Enterococcus faecalis following intravitreal injection. Despite repeated intravitreal antibiotic treatments, the patient's visual acuity did not improve, but early vitrectomy resulted in visual improvement without disease recurrence.
