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001-es BibID:	BIBFORM124137
Első szerző:	Murvai Katalin
Cím:	The bacterial and yeast microbiota in livestock forages in Hungary / Katalin Pappné Murvai, Hanna Viktória Rácz, Enikő Horváth, Bálint Németh, Alexandra Imre, Kadmiel Naliel Oliveira Pereira, Zsuzsa Antunovics, Ferenc Peles , Péter Sipos, Béla Béri, Tünde Pusztahelyi, István Pócsi, Walter P. Pfliegler
Dátum:	2024
ISSN:	1471-2180
Megjegyzések:	Background Along bacteria, yeasts are common in forages and forage fermentations as spoilage microbes or as additives, yet few studies exist with species-level data on these fungi's occurrence in feedstuff. Active dry yeast and other yeast-based products are also common feed additives in animal husbandry. Here, we aimed to characterize both fermented and non-fermented milking cow feedstuff samples from Hungary to assess their microbial diversity in the first such study from Central Europe. Results We applied long-read bacterial metabarcoding to 10 fermented and 25 non-fermented types of samples to assess bacterial communities and their characteristics, surveyed culturable mold and yeast abundance, and identified culturable yeast species. Fermented forages showed the abundance of Aerococcaceae, Bacillaceae, Brucellaceae, Lactobacillaceae, Staphylococcaceae, and Thermoactinomycetaceae, non-fermented ones had Cyanothecaceae, Enterobacteriaceae, Erwiniaceae, Gomontiellaceae, Oxalobacteraceae, Rhodobiaceae, Rickettsiaceae, and Staphylococcaceae. Abundances of bacterial families showed mostly weak correlation with yeast CFU numbers, only Microcoleaceae (positive) and Enterococcaceae and Alcaligenaceae (negative correlation) showed moderate correlation. We identified 14 yeast species, most commonly Diutina rugosa, Pichia fermentans, P. kudriavzevii, and Wickerhahomyces anomalus. We recorded S. cerevisiae isolates only from animal feed mixes with added active dry yeast, while the species was completely absent from fermented forages. The S. cerevisiae isolates showed high genetic uniformity. Conclusion Our results show that both fermented and non-fermented forages harbor diverse bacterial microbiota, with higher alpha diversity in the latter. The bacterial microbiome had an overall weak correlation with yeast abundance, but yeasts were present in the majority of the samples, including four new records for forages as a habitat for yeasts. Yeasts in forages mostly represented common species including opportunistic pathogens, along with a single strain of Saccharomyces used as a feed mix additive.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Saccharomyces Silage Mycobiome Yeast diversity
Megjelenés:	BMC Microbiology. - 24 : 1 (2024), p. 1-11. -
További szerzők:	Rácz Hanna Viktória (1994-) (biológus) Horváth Enikő (1987-) (biológus) Németh Bálint Imre Alexandra (1992-) (biomérnök, biotechnológus) Pereira, Kadmiel Naliel Oliveira Antunovics Zsuzsa (1978-) (molekuláris biológus, genetikus) Peles Ferenc (1979-) (mikrobiológia, élelmiszer-mikrobiológia, minőségügy) Sipos Péter (1975-) (agrármérnök) Béri Béla (1951-) (agrármérnök) Pusztahelyi Tünde (1969-) (biológus, angol-magyar szakfordító) Pócsi István (1961-) (vegyész) Pfliegler Valter Péter (1986-) (molekuláris biológus)
Pályázati támogatás:	FK 138910 Egyéb 2018?1.2.1-NKP-2018-00002 Egyéb BO/00227/20/8 Egyéb ÚNKP-22-5-DE-409 Egyéb ÚNKP22-3-II-DE-187 Egyéb
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