Galactomyces candidus diversity in the complex mycobiota of cow-milk bryndza cheese comprising antagonistic and sensitive strains

Sipiczki, Matthias; Hrabovszki, Valéria

doi:10.1016/j.ijfoodmicro.2023.110088

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…The tests were carried out on YEA and EMMA (Edinburgh Minimal Medium, 42 ) plates and the indicator organisms were Debaryomyces aff. hanseni Vm7 43 , Zygosaccharomyces aff. siamensis 11-2106 and Botrytis cinerea 3318 12 .…”

Section: Methodsmentioning

confidence: 99%

High intragenomic, intergenomic, and phenotypic diversity in pulcherrimin-producing Metschnikowia yeasts indicates a special mode of genome evolution

Sipiczki,

Czentye,

Kállai

2024

Sci Rep

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In molecular systematics, the delimitation of yeast species is based on the notion that the barcode differences are smaller within species than between them. The most widely used barcodes are segments of the chromosomal repeats coding for ribosomal RNAs that are homogenised in yeasts. The analysis of these segments of the type strains of ten species recently merged in Metschnikowia pulcherrima and 37 new isolates demonstrated that this is not the case in this species. The intragenomic diversity significantly exceeded the threshold gaps used to differentiate related yeast species. Large segments of the D1/D2 domains were not diverse within the genomes and could therefore be used to determine the taxonomic affiliation of the isolates. The genome structures of the isolates were compared by RAPD and the RFLP of the mitochondrial DNA. Both patterns were highly heterogeneous. The sequence analysis of the PUL4 gene (a member of the PUL gene cluster involved in pulcherrimin production) revealed very high intragenomic differences, suggesting that the genomes may be chimerised. Three phenotypic traits related to the antimicrobial antagonism characteristic of the species were also highly diverse and prone to reversible segregation resembling epigenetic processes (silencing and reactivation of regulators) rather than mutations and back-mutations. These features make M. pulcherrima unique among yeasts and indicate that it evolves in a non-standard way.

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Section: Methodsmentioning

confidence: 99%

High intragenomic, intergenomic, and phenotypic diversity in pulcherrimin-producing Metschnikowia yeasts indicates a special mode of genome evolution

Sipiczki,

Czentye,

Kállai

2024

Sci Rep

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“…Interspersed between these yeast clades are plenty of lineages that have retained hyphal growth [e.g. Blastobotrys, Candida, Eremothecium, Yarrowia, Dipodascaceae, Alloascoidea , and Saccharomycopsis (Philippsen et al 2005 , Nagahama et al 2008 , Stajich et al 2009 , Kurtzman and Robnett 2013 , Sipiczki and Hrabovszki 2023 )]. The polyphyletic pattern of yeasts across Saccharomycotina , which also manifests elsewhere in fungi (Nagy et al 2014 , Naranjo‐Ortiz and Gabaldón 2019 ), is a testament to the likely benefit of the yeast lifestyle across niches (Ivarsson et al 2020 ), and to the evolutionary accessibilility of its mechanisms.…”

Section: Morphology Vegetative Growth and Sexmentioning

confidence: 99%

Natural trait variation across Saccharomycotina species

Wang,

Steenwyk,

Brem

2024

FEMS Yeast Research

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Among molecular biologists, the group of fungi called Saccharomycotina is famous for its yeasts. These yeasts in turn are famous for what they have in common—genetic, biochemical, and cell-biological characters that serve as models for plants and animals. But behind the apparent homogeneity of Saccharomycotina species lie a wealth of differences. In this review, we discuss traits that vary across the Saccharomycotina subphylum. We describe cases of bright pigmentation; a zoo of cell shapes; metabolic specialties; and species with unique rules of gene regulation. We discuss the genetics of this diversity and why it matters, including insights into basic evolutionary principles with relevance across Eukarya.

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Identification of antagonistic yeasts as potential biocontrol agents: Diverse criteria and strategies

Sipiczki

2023

International Journal of Food Microbiology

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Galactomyces candidus diversity in the complex mycobiota of cow-milk bryndza cheese comprising antagonistic and sensitive strains

Cited by 5 publications

References 40 publications

High intragenomic, intergenomic, and phenotypic diversity in pulcherrimin-producing Metschnikowia yeasts indicates a special mode of genome evolution

High intragenomic, intergenomic, and phenotypic diversity in pulcherrimin-producing Metschnikowia yeasts indicates a special mode of genome evolution

Natural trait variation across Saccharomycotina species

Identification of antagonistic yeasts as potential biocontrol agents: Diverse criteria and strategies

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