Perforative eye injuries in two patients were complicated by fulminant endophthalmitis. In both patients the cornea was free of micro-organisms. Vitrectomy of the posterior pars plana was performed and the contents of the vitreous body were examined mycologically and bacteriologically. Fusarium moniliforme var. subglutinans and Pseudomonas species were isolated from both patients. Fungal and bacterial organisms penetrated the vitreous body via metal foreign bodies.
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Front Microbiol
January 2025
Toxicology and Mycotoxin Research Unit, United States National Poultry Research Center, Agricultural Research Service, United States Department of Agriculture, Athens, GA, United States.
-a mycotoxigenic fungus and food safety threat-coinhabits maize kernels with . This protective endophyte produces secondary metabolites of interest, pyrrocidines A and B, which inhibit the growth of and specifically block fumonisin biosynthesis. Previous transcriptomic analyses found (FVEG_00314), a gene adjacent to the fumonisin biosynthetic gene cluster, to be induced over 4,000-fold in response to pyrrocidine challenge.
View Article and Find Full Text PDFFront Cell Infect Microbiol
January 2025
United States National Poultry Research Center, United States Department of Agriculture Toxicology and Mycotoxin Research Unit, Athens, GA, United States.
The mycotoxigenic fungi, and , commonly co-colonize maize in the field, yet their direct interactions at the chemical communication level have not been well characterized. Here, we examined if and how the two most infamous mycotoxins produced by these species, aflatoxin and fumonisin, respectively, govern interspecies growth and mycotoxin production. We showed that fumonisin producing strains of suppressed the growth of while non-producers did not.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071000, China; Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Ministry of Education of China-Hebei Province Joint Innovation Center for Efficient Green Vegetable Industry, College of Horticulture, Hebei Agricultural University, Baoding 071000, China; Division of Plant Sciences, Research School of Biology, Australian National University, Canberra, ACT 2601, Australia. Electronic address:
Fusarium oxysporum f. sp. lycopersici (Fol), the causal agent of tomato wilt disease, is a soil-borne, vascular-colonizing fungal pathogen that severely impacts tomato production in most growing regions worldwide.
View Article and Find Full Text PDFBioorg Chem
February 2025
School of Biotechnology and Key Laboratory of Industrial Biotechnology of Education, School of Biotechnology, Jiangnan University, Wuxi 214122 China. Electronic address:
Achieving enzyme catalysis at high substrate concentrations is a substantial challenge in industrial biocatalysis, and the role of glycosylation in post-translational modifications that modulate enzyme substrate inhibition remains poorly understood. This study provides insights into the role of N-glycosylation in substrate inhibition by comparing the catalytic properties of d-lactonohydrolase (d-Lac) derived from Fusarium moniliforme expressed in prokaryotic and eukaryotic hosts. Experimental evidence indicates that recombinant d-Lac expressed in Pichia pastoris (PpLac-WT) exhibits higher hydrolysis rates at a substrate concentration of 400 g/L, with reduced substrate inhibition and enhanced stability compared to the recombinant d-Lac expressed in Escherichia coli (EcLac-WT).
View Article and Find Full Text PDFPathogens
December 2024
Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy.
is an important plant pathogen in maize and other cereals that is seldom detected as the cause of human fusariosis. Here, we provide the analysis of the available diversity of sequenced worldwide and report the first two genome assemblies and annotations (including mitochondrial DNA) of from clinical settings. 05-0160 (IUM05-0160) and 09-1037 (IUM09-1037) strains were obtained from the bone marrow and blood of two immunocompromised patients, respectively.
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