CCL

Összesen 3 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM105492
Első szerző:Ács-Szabó Lajos (biológus)
Cím:New Strain of Cyphellophora olivacea Exhibits Striking Tolerance to Sodium Bicarbonate / Lajos Acs-Szabo, Laszlo Attila Papp, Hajnalka Csoma, Ida Miklos, Matthias Sipiczki
Dátum:2022
ISSN:1424-2818
Megjegyzések:The cyanobacterium strain Synechococcus cedrorum SAG 88.79 stock culture has fungal contamination stated by the Sammlung von Algenkulturen der Universität Göttingen itself. In this recent work, this particular fungal strain was isolated, identified, and morphologically characterised. The fungal strain AGSC12 belongs to the species Cyphellophora olivacea, with respect to the sequence similarity, phylogeny, and morphology of the strain. Colony morphology and growth capability were examined on SMA, EMMA, PDA, MEA, YEA, and YPA plates. Growth of the colonies was the most successful on YPA plates, followed by PDA and MEA containing plates. Surprisingly, the AGSC12 strain showed extreme tolerance to NaHCO3 , albeit it, is is considered a general fungistatic compound. Moreover, positive association between the AGSC12 and SAG 88.79 strains was revealed, as the SAG 88.79 strain always attained higher cell density in co-cultures with the fungus than in mono-cultures. Besides, a taxonomic note on the SAG 88.79 strain itself was also stated.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Cyphellophora
Cyanobacterium
Synechococcus
fungal phylogeny
sodium bicarbonate
microbial interaction
Megjelenés:Diversity. - 14 : 12 (2022), p. 1023-. -
További szerzők:Papp László Attila (1986-) (genetikus) Csoma Hajnalka (1979-) (biológus, szőlész-borász) Miklós Ida (1962-) (biológus) Sipiczki Mátyás (1948-) (biológus)
Pályázati támogatás:K-124417
OTKA
GINOP-2.2.1-15-2016-00029
GINOP
EFOP-3.6.1-16-2016-00022
EFOP
20428-3/2018
FIKP
2019-1.1.1-PIACI-KFI-2019-00228
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM110207
035-os BibID:(cikkazonosító)852
Első szerző:Csoma Hajnalka (biológus, szőlész-borász)
Cím:Characterization of Zygosaccharomyces lentus Yeast in Hungarian Botrytized Wines / Hajnalka Csoma, Lajos Acs-Szabo, László Attila Papp, Zoltán Kállai, Ida Miklós, Matthias Sipiczki
Dátum:2023
ISSN:2076-2607
Megjegyzések:Tokaj botrytized sweet wines are traditionally aged for several years in wood barrels or bottles. As they have significant residual sugar content, they are exposed to microbial contamination during ageing. Osmotolerant wine-spoilage yeasts are most commonly found in the Tokaj winegrowing region in the species Starmerella spp. and Zygosaccharomyces spp. For the first time, Z. lentus yeasts were isolated from post-fermented botrytized wines. Our physiological studies confirmed that these yeast strains are osmotolerant, with high sulphur tolerance and 8% v/v alcohol tolerance, and that they grow well at cellar temperature in acidic conditions. Low β-glucosidase and sulphite reductase activities were observed, whereas protease, cellulase, and α-arabinofuranosidase extracellular enzyme activities were not detected. Molecular biology analyses carried out by RFLP analysis of mtDNA revealed no remarkable differences between strains, while microsatellite-primed-PCR fingerprinting of the (GTG)5 microsatellite and examination of chromosomal pattern revealed considerable diversity. The fermentative vigour of the tested Z. lentus strains was found to be significantly lower compared to the control Saccharomyces cerevisiae (Lalvin EC1118). It can be concluded that Z. lentus is a potential spoilage yeast in oenology which may be responsible for the initiation of secondary fermentation of wines during ageing.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Zygosaccharomyces
spoilage yeast
botrytized wine
post-fermentation
Megjelenés:Microorganisms. - 11 : 4 (2023), p. 1-17. -
További szerzők:Ács-Szabó Lajos (1985-) (biológus) Papp László Attila (1986-) (genetikus) Kállai Zoltán (1986-) (borászati kutató) Miklós Ida (1962-) (biológus) Sipiczki Mátyás (1948-) (biológus)
Pályázati támogatás:K-124417
NKFIH
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM078528
035-os BibID:(cikkazonosító)foy021
Első szerző:Csoma Hajnalka (biológus, szőlész-borász)
Cím:Application of different markers and data-analysis tools to the examination of biodiversity can lead to different results : a case study with Starmerella bacillaris (synonym Candida zemplinina) strains / Hajnalka Csoma, Lajos Ács-Szabó, László Attila Papp, Matthias Sipiczki
Dátum:2018
ISSN:1567-1364
Megjegyzések:Starmerella bacillaris (Candida zemplinina) is a genetically heterogeneous species. In this work, the diversity of 41 strains of various origins is examined and compared by the analysis of the length polymorphism of nuclear microsatellites and the RFLP of mitochondrial genomes. The band patterns are analysed with UPGMA, neighbor joining, neighbor net, minimum spanning tree and non-metric MDS algorithms. The results and their comparison to previous analyses demonstrate that different markers and different clustering methods can result in very different groupings of the same strains. The observed differences between the topologies of the dendrograms also indicate that the positions of the strains do not necessarily reflect their real genetic relationships and origins. The possibilities that the differences might be partially due to different sensitivity of the markers to environmental factors (selection pressure) and partially to the different grouping criteria of the algorithms are also discussed.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Candida zemplinina
mtDNA
microsatellite markers
strain biodiversity
RFLP-mtDNA
Megjelenés:FEMS Yeast Research. - 18 : 5 (2018), p. 1-12. -
További szerzők:Ács-Szabó Lajos (1985-) (biológus) Papp László Attila (1986-) (genetikus) Sipiczki Mátyás (1948-) (biológus)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1