ArticleMycopathologia2016
Characterization of Prototheca zopfii Genotypes Isolated from Cases of Bovine Mastitis and Cow Barns in China.
Article in Mycopathologia, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed.
- Allelopathic compound 2-methoxy-1,4-naphthoquinone is broadly effective against pathogenicAntimicrobial agents and chemotherapy · 2025Article
- Molecular and Phenotypic Characterization ofAnimals : an open access journal from MDPI · 2025Article
- Investigation ofVeterinary sciences · 2024Article
- Genotypic and phenotypic diversity of Prototheca spp. recovered from bovine mastitis in terms of antimicrobial resistance and biofilm formation ability.BMC veterinary research · 2022Article
- Occurrence ofApplied and environmental microbiology · 2022Article
- Review
- Tryptophan, Kynurenine and Kynurenic Acid Concentrations in Milk and Serum of Dairy Cows withAnimals : an open access journal from MDPI · 2021Article
- Prototheca spp. induce an inflammatory response via mtROS-mediated activation of NF-κB and NLRP3 inflammasome pathways in bovine mammary epithelial cell cultures.Veterinary research · 2021Article
- MALDI-TOF MS identification ofJournal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2021Article
- A survey of Prototheca bovis infection in dairy farms of the Hubei province, China.The Journal of veterinary medical science · 2021Article
- Murine and Human Cathelicidins Contribute Differently to Hallmarks of Mastitis Induced by PathogenicFrontiers in cellular and infection microbiology · 2020Article
- Prevalence of Prototheca spp. on dairy farms in Poland - a cross-country study.Microbial biotechnology · 2019Article
- Article
- Prototheca zopfii isolated from bovine mastitis induced oxidative stress and apoptosis in bovine mammary epithelial cells.Oncotarget · 2017Article
- Article
- An Investigation of the Innate Immune Response in Bovine Mammary Epithelial Cells Challenged by Prototheca zopfii.Mycopathologia · 2016Article
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Authors and funding
10 authors.
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Abstract
Protothecal mastitis, caused mostly by Prototheca zopfii (P. zopfii), is increasing in dairy herds and is being reported globally. The present study was aimed at studying the epidemiology of mastitis and at molecular characterization of P. zopfii isolates from dairy herds and their surroundings in three provinces of China using microbiological, biochemical and molecular methods, and antibiotic susceptibility tests. Samples from milk (n = 620) of mastitic cows and their barns sources (n = 410) including feces, feed, bedding materials and drinking water were analyzed. Among other pathogens recovered from mastitic milk, 84 (13.5%) of the isolates were identified as P. zopfii. All of the P. zopfii isolates recovered from milk were recognized as genotype 2, whereas 58 (73.4%) and 21 (26.6%) isolates from environmental sources were found to be P. zopfii genotypes 1 and 2, respectively. The isolates were susceptible to some antibiotics and antifungal agents, including amikacin (78.1%), streptomycin (58.5%), gentamicin (17.8%), amphotericin B (68.6%) and nystatin (64.4%). Additionally, the two genotypes displayed versatile patterns of susceptibility to different antimicrobials agents. Phylogeny of the genotypes on the basis of 18S SSU rDNA and 28S SSU rDNA was also investigated. The isolates of the two genotypes separated into different clades, and no interrelationship was observed among these as shown by phylogenetic analysis. The genotype 1 isolates from cow barn sources were non-pathogenic and may not present any risk of mastitis. We conclude that P. zopfii genotype 2 might play an important role in bovine mastitis in China.
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