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In this article, we present a method to delete genes in filamentous fungi that allows recycling of the selection marker and is efficient in a nonhomologous end-joining (NHEJ)-proficient strain. We exemplify the approach by deletion of the gene encoding the transcriptional regulator XlnR in the fungus Aspergillus niger. To show the efficiency and advantages of the method, we deleted 8 other genes and constructed a double mutant in this species. Moreover, we showed that the same principle also functions in a different genus of filamentous fungus (Talaromyces versatilis, basionym Penicillium funiculosum). This technique will increase the versatility of the toolboxes for genome manipulation of model and industrially relevant fungi.
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http://dx.doi.org/10.1128/AEM.00625-14 | DOI Listing |
Plant Dis
September 2025
Institute of Plant Protection, University of Belgrade-Faculty of Agriculture, Department of Phytopathology, Nemanjina 6, Belgrade , Serbia, 11080.
The pathogenic soilborne and postharvest fungus , as newly reported pathogen in Serbia, caused significant disease symptoms on carrot roots and seedlings in inoculation assays. In October 2023, machine-washed and cold-stored carrot roots showed symptoms of black rot of patches and abundant sporulation. The influence of the postharvest treatment of machine washing was confirmed by additional sampling at the production site.
View Article and Find Full Text PDFPlant Dis
September 2025
Michigan State University, Department of Plant, Soil and Microbial Sciences, 105 CIPS, East Lansing, Michigan, United States, 48824;
Caliciopsis pinea is the ascomycete plant pathogen that causes caliciopsis canker disease on North American Pinus strobus (eastern white pine). Infections result in downgrading of lumber due to canker formation and overall loss of vigor in P. strobus, which is a critical cover species throughout its native range.
View Article and Find Full Text PDFBMC Plant Biol
September 2025
Department of Botany and Microbiology, Faculty of Science, South Valley University, Qena, 83523, Egypt.
Background: Apples are important for human nutrition because these provide vital nutrients, including vitamins and minerals, that are needed for a balanced diet. A suitable environment for the growth and survival of various microorganisms is also provided by multiple nutrients, such as carbohydrates, minerals, vitamins, and amino acids. Penicillium spp.
View Article and Find Full Text PDFCurr Top Microbiol Immunol
September 2025
School of Life Sciences, University of Nottingham, Nottingham, UK.
Fungi are essential for a wide variety of food products and processes. They have a major role in the production of many fermented foodstuffs, may be eaten directly as fruit bodies and mycelium, and are used to produce food additives. They contribute to food production worldwide, even in cultures which do not typically consume mushrooms, because yeasts and edible moulds are utilised in a great variety of fermentation processes.
View Article and Find Full Text PDFCommun Biol
September 2025
Department of General and Applied Biology, São Paulo State University (UNESP), Institute of Bioscience, Rio Claro, SP, Brazil.
Symbiotic relationships shape the evolution of organisms. Fungi in the genus Escovopsis share an evolutionary history with the fungus-growing "attine" ant system and are only found in association with these social insects. Despite this close relationship, there are key aspects of Escovopsis evolution that remain poorly understood.
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