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1.

001-es BibID:BIBFORM116227
035-os BibID:(cikkazonosító)15058 (Scopus)85170693997
Első szerző:Abdel-Rahman, Ahmed M.
Cím:The geochemistry, origin, and hydrothermal alteration mapping associated with the gold-bearing quartz veins at Hamash district, South Eastern Desert, Egypt / Ahmed M. Abdel-Rahman, Hatem M. El-Desoky, Ali Shebl, Hamada El-Awny, Yahia Z. Amer, Árpád Csámer
Dátum:2023
ISSN:2045-2322
Megjegyzések:Integrating diverse techniques and datasets, significantly enhances the accurate identification of various mineral deposits. This work aims to determine different types of mineral deposits in the Hamash district (Southern Eastern Desert, Egypt) by combining structural features (derived from ALOS PALSAR DEM), alteration zones (detected using ASTER and Sentinel-2), and ore mineralogy. Multispectral imaging, such as ASTER and Sentinel-2 satellite data, provides a cost-effective and efficient tool for lithological and hydrothermal alteration mapping utilizing selective band ratios (SBR), directed principal component analysis (DPCA), feature-oriented false-color composites (FFCC), and constrained energy minimization (CEM). The deductions drawn from the analysis of ASTER and Sentinel 2 satellite data are solidly corroborated through meticulous investigations of pre-existing lithological maps in the study area, on-site validation via fieldwork, and robust laboratory analysis, attesting to reliable results. Validation of remote sensing results was performed through field observations, petrographic investigations, X-ray diffraction technique (XRD), and SEM?EDX analyses. Based on ore mineralogy derived from XRD and SEM results the quartz-vein-associated ore minerals in the Hamash district include chalcopyrite, pyrite, hematite, goethite, bornite, covellite, and gold. According to the present paragenesis, the mineralization in the study area is classified into three types: sulfide mineralized zone, transitional zone, and supergene zone. Using an ore microscope, our studies identified that the alteration zones include gold-bearing sulfide minerals as well as the minerals goethite and malachite. In gold-bearing quartz samples, the concentrations of Cu, As, Ag, and Sb are positively correlated with Au at the degree of shear deformation. According to data gathered from the fire assay results, Au content varied from 0.027 to 57.20 ppm, along with Cu (10?6484 ppm), Ag (0.5?20.5 ppm), As (5?2046 ppm), Zn (3?1095 ppm), Pb (2?1383 ppm), and Sb (5?23). Our results confirmed that the Hamash region is one of the most important gold-bearing sites, with gold concentrations ranging from 0.027 up to 57.20 ppm. Furthermore, the current contribution highlighted four stages in the paragenetic sequence of the recorded ores, including magmatic, metamorphic, hydrothermal, and supergene by origin, indicating a considered similarity with the known Egyptian gold sites regarding host rocks, mineralization style, alteration assemblage, and several ore mineral conditions.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 13 : 1 (2023), p. 1-27. -
További szerzők:El-Desoky, Hatem M. Shebl, Aly (1992-) (geológus) El-Awny, Hamada Amer, Yahia Z. Csámer Árpád (1976-) (geológus)
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2.

001-es BibID:BIBFORM099123
035-os BibID:(cikkazonosító)15749 (WOS)000493439600047 (Scopus)85074278783
Első szerző:Ács Éva
Cím:Trait-based community assembly of epiphytic diatoms in saline astatic ponds: a test of the stress-dominance hypothesis / Ács Éva, Földi Angéla, Vad Csaba Ferenc, Trábert Zsuzsa, Kiss Keve Tihamér, Duleba Mónika, Borics Gábor, Grigorszky István, Botta-Dukát Zoltán
Dátum:2019
ISSN:2045-2322
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 9 : 1 (2019), p. 1-11. -
További szerzők:Földi Angéla Vad Csaba F. Trábert Zsuzsa Kiss Keve Tihamér Duleba Mónika Borics Gábor (biológus) Grigorszky István (1967-) (biológus-ökológus) Botta-Dukát Zoltán
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3.

001-es BibID:BIBFORM076280
035-os BibID:(cikkazonosító)14629 (WOS)000446034000030 (Scopus)85054179467
Első szerző:Ács-Szabó Lajos (biológus)
Cím:Assembly of Schizosaccharomyces cryophilus chromosomes and their comparative genomic analyses revealed principles of genome evolution of the haploid fission yeasts / Ács-Szabó Lajos, Papp László Attila, Antunovics Zsuzsa, Sipiczki Matthias, Miklós Ida
Dátum:2018
ISSN:2045-2322
Megjegyzések:The fission yeast clade, which has a distinct life history from other yeasts, can provide important clues about evolutionary changes. To reveal these changes the large S. cryophilus supercontigs were assembled into chromosomes using synteny relationships and the conserved pericentromeric, subtelomeric genes. Togetherness of the supercontigs was confirmed by PCR. Investigation of the gene order revealed localisation of the rDNA arrays, more than 300 new conserved orthologues and proved that S. cryophilus supercontigs were mosaics of collinear blocks. PFGE analysis showed that size of the S. cryophilus chromosomes differ from the S. pombe chromosomes. Comparative genomic analyses of the newly assembled chromosomes confirmed that the closest relative of S. cryophilus was S. octosporus not just in sequence similarity but also in a structural way, and revealed that preservation of the conserved regions did not arise from the lower number of chromosomal rearrangements. Translocations were more typical in the closely related species, while the number of inversions increased with the phylogenetic distances. Our data suggested that sites of the chromosomal rearrangements were not random and often associated with repetitive sequences, structural- and nucleotide evolution might correlate. Chromosomal rearrangements of the fission yeasts compared to other lineages were also discussed.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 8 : 1 (2018), p. 1-12. -
További szerzők:Papp László Attila (1986-) (genetikus) Antunovics Zsuzsa (1978-) (molekuláris biológus, genetikus) Sipiczki Mátyás (1948-) (biológus) Miklós Ida (1962-) (biológus)
Pályázati támogatás:EFOP-3.6.1-16-2016-00022
EFOP
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4.

001-es BibID:BIBFORM087417
035-os BibID:(Cikkazonosító)6022 (WOS)000549142200022 (Scopus)85083071536
Első szerző:Ág Norbert (okleveles biomérnök)
Cím:Complex intron generation in the yeast genus Lipomyces / Norbert Ág, Napsugár Kavalecz, Fruzsina Pénzes, Levente Karaffa, Claudio Scazzocchio, Michel Flipphi, Erzsébet Fekete
Dátum:2020
ISSN:2045-2322
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 10 (2020), p. 1-10. -
További szerzők:Kavalecz Napsugár (1992-) (biomérnök) Pénzes Fruzsina (1995-) (okleveles biomérnök) Karaffa Levente (1971-) (biotechnológus, egyetemi tanár) Scazzocchio, Claudio Flipphi, Michel (1964-) Fekete Erzsébet (1975-) (biotechnológus, egyetemi tanár)
Pályázati támogatás:GINOP-2.3.2-15-2016-00008
GINOP
EFOP-3.6.1-16-2016-00022
EFOP
BO/00093/18/8
Egyéb
ÚNKP-19-3
Egyéb
ÚNKP-19-4
Egyéb
KH129602
Egyéb
NN128867
Egyéb
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5.

001-es BibID:BIBFORM114232
035-os BibID:(cikkazonosító)14080 (WoS)001057740800036 (Scopus)85168947420
Első szerző:Al-Ajaleen Musab Salameh Ali
Cím:Total and differential ionization cross sections in collision between nitrogen atom and singly charged sodium ion / M.Al?Ajaleen, K.Tőkési
Dátum:2023
ISSN:2045-2322
Megjegyzések:We present a theoretical study of the ionization of nitrogen atom by a singly charged sodium ion using the classical trajectory Monte Carlo method. Although we sufer from a lack of cross section data of this collision system, the knowledge of the basic cross sections is essential in fusion science, because this reaction has potential applications in the diagnostic of magnetically confned fusion plasmas. In our investigations, the Na+ -N collision system is reduced to a three-body problem. The interaction between the collision partners is described by the Garvey-type model potential. The results of our study provide insight into the dynamics of singly charged sodium-nitrogen interactions. The total cross sections are presented in the impact energy range between 10 keV and 10 MeV and compared them with the available experimental data. The single and double diferential cross sections are presented at 30, 40, 50 and 60 keV energies related to the energies of the plasma diagnostic used in the nuclear fusion.
Tárgyszavak:Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 13 : 1 (2023), p. 1-9. -
További szerzők:Tőkési Károly (1962-) (fizikus)
Pályázati támogatás:101052200-EUROfusion
Egyéb
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6.

001-es BibID:BIBFORM108232
035-os BibID:(cikkazonosító)1112 (WoS)000985396000014 (Scopus)85146613535
Első szerző:Antunovics Zsuzsa (molekuláris biológus, genetikus)
Cím:Synthetic two-species allodiploid and three-species allotetraploid Saccharomyces hybrids with euploid (complete) parental subgenomes / Zsuzsa Antunovics, Adrienn Szabo, Lina Heistinger, Diethard Mattanovich, Matthias Sipiczki
Dátum:2023
ISSN:2045-2322
Megjegyzések:Combination of the genomes of Saccharomyces species has great potential for the construction of new industrial strains as well as for the study of the process of speciation. However, these species are reproductively isolated by a double sterility barrier. The first barrier is mainly due to the failure of the chromosomes to pair in allodiploid meiosis. The second barrier ensures that the hybrid remains sterile even after genome duplication, an event that can restore fertility in plant interspecies hybrids. The latter is attributable to the autodiploidisation of the allotetraploid meiosis that results in sterile allodiploid spores (return to the first barrier). Occasionally, mating-competent alloaneuploid spores arise by malsegregation of MAT-carrying chromosomes. These can mate with cells of a third species resulting in aneuploid zygotes having at least one incomplete subgenome. Here we report on the construction of euploid three-species hybrids by making use of "rare mating" between a sterile S. kudriavzevii x S. uvarum allodiploid hybrid and a diploid S. cerevisiae strain. The hybrids have allotetraploid 2nScnSk nSu genomes consisting of complete sets of parental chromosomes. This is the first report on the production of euploid three-species Saccharomyces hybrids by natural mating, without genetic manipulation. The hybrids provide possibilities for studying the interactions of three allospecific genomes and their orthologous genes present in the same cell.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 13 : 1 (2023), p. 1-13. -
További szerzők:Szabó Adrienn (1992-) (biológus) Heistinger, Lina Mattanovich, Diethard Sipiczki Mátyás (1948-) (biológus)
Pályázati támogatás:2020-1.1.2.-PIACI-KFI-2020-00130
Egyéb
K-124417
NKFIH
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7.

001-es BibID:BIBFORM115412
035-os BibID:(cikkazonosító)17598 (WoS)001087127100036 (Scopus)85174279040
Első szerző:Ata Behnam (Geográfus PhD hallgató)
Cím:Driving factors of energy related CO2 emissions at a regional level in the residential sector of Iran / Behnam Ata, Parisa Pakrooh, János Pénzes
Dátum:2023
ISSN:2045-2322
Megjegyzések:Iran has increased its CO2 emissions significantly during the past few decades. The household sector in Iran contributes one of the largest sectors of CO2 emissions. Despite this significant contribution, the existing policies have predominantly concentrated on large-scale initiatives while overlooking the regional role in shaping and implementing these plans. Therefore, this study investigates the relationship between CO2 emissions and the efficient factors in three major groups including energy, climate, and household socio-economic factors. This study aims to address regional carbon emissions and develop CO2 reduction policies tailored to each region's specific circumstances. It focuses on planning strategies at the regional level to effectively tackle CO2 emissions. Household panel data of 28 provinces of Iran are employed by using both static and dynamic panel models for the years 2001 to 2019. Static estimation includes Fixed Effect (FE), Random Effect (RE) and pooled Partial least squares (PLS), Dynamic estimation includes difference Generalized Method of Moments (GMM) and system Generalized Method of Moments (GMM). The empirical result of the static method showed positive dependence of household CO2 emissions on Heating Degree Days (HDD), Cooling Degree Days (CDD), precipitation level, oil consumption, gas consumption, household income, size of household, and also building stocks. In more detail, educational rate, dummy variable (removal of energy subsidy), and oil price reveal the greatest negative impact on the emissions with elasticities of - 0.428, - 0.31, and - 0.15; It represents 1% increase causes - 0.428, - 0.31, - 0.15, decrease CO2 emissions, respectively. however, household size, gas consumption, and oil consumption show the most significant positive effects on CO2 emissions with 1 percent increase causes CO(2)emissions increases by 0.1, 0.044, and 0.026, respectively. Regarding the impact of climate factors, a 1% increase in Heating Degree Days, Cooling Degree Days, and precipitation level causes CO2 emissions increase by 0.024%, 0.004%, and 0.011% respectively, due to an increase in fossil energy demand. Results of the dynamic method of the system Generalized Method of Moments are similar to the static estimation results, except for that household size and urbanization are not significant. Also, removing the energy subsidy for fossil fuels due to substantial subsidy in fossil fuels in Iran or implementing a re-pricing energy policy can be a beneficial way to control carbon emissions from households within the provinces of the country. However, it is important to consider that this shift could potentially transfer subsidies to investments in the private sector for renewable energies.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 13 : 1 (2023), p. 1-23. -
További szerzők:Pakrooh, Parisa Pénzes János (1980-) (geográfus)
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8.

001-es BibID:BIBFORM067697
035-os BibID:(cikkazonosító)31871 (WOS)000381749900001 (Scopus)84984616687
Első szerző:Badankó Péter (fizikus)
Cím:Molecular vibrational trapping revisited : a case study with D2+ / Péter Badankó, Gábor J. Halász, Ágnes Vibók
Dátum:2016
ISSN:2045-2322
Megjegyzések:The present theoretical study is concerned with the vibrational trapping or bond hardening, which is a well-known phenomenon predicted by a dressed state representation of small molecules like and in an intense laser field. This phenomenon is associated with a condition where the energy of the light induced, vibrational level coincides with one of the vibrational levels on the field-free potential curve, which at the same time maximizes the wave function overlap between these two levels. One-dimensional numerical simulations were performed to investigate this phenomenon in a more quantitative way than has been done previously by calculating the photodissociation probability of for a wide range of photon energy. The obtained results undoubtedly show that the nodal structure of the field-free vibrational wave functions plays a decisive role in the vibrational trapping, in addition to the current understanding of this phenomenon.
Tárgyszavak:Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 6 (2016), p. 1-10. -
További szerzők:Halász Gábor J. (1961-) (fizikus) Vibók Ágnes (1962-) (fizikus)
Pályázati támogatás:TÁMOP-4.2.2.B-15/1/KONV-2015-0001
TÁMOP
OTKA-103251
OTKA
GOP-1.1.1-12/B-2012-000
Egyéb
GINOP-2.3.6-15-2015-00001
GINOP
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Intézményi repozitóriumban (DEA) tárolt változat
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9.

001-es BibID:BIBFORM071657
035-os BibID:(Cikkazonosító)157 (WOS)000419659600038 (Scopus)85040525540
Első szerző:Batta Gyula (biológus)
Cím:Alterations in the properties of the cell membrane due to glycosphingolipid accumulation in a model of Gaucher disease / Gyula Batta, Lilla Soltész, Tamás Kovács, Tamás Bozó, Zoltán Mészár, Miklós Kellermayer, János Szöllősi, Peter Nagy
Dátum:2018
ISSN:2045-2322
Megjegyzések:Gaucher disease is a lysosomal storage disease characterized by the malfunction of glucocerebrosidaseresulting in the accumulation of glucosylceramide and other sphingolipids in certain cells. Althoughthe disease symptoms are usually attributed to the storage of undigested substrate in lysosomes,here we show that glycosphingolipids accumulating in the plasma membrane cause profound changesin the properties of the membrane. The fluidity of the sphingolipid-enriched membrane decreasedaccompanied by the enlargement of raft-like ordered membrane domains. The mobility of non-raftproteins and lipids was severely restricted, while raft-resident components were only mildly affected.The rate of endocytosis of transferrin receptor, a non-raft protein, was significantly retarded in Gauchercells, while the endocytosis of the raft-associated GM1 ganglioside was unaffected. Interferon-?-induced STAT1 phosphorylation was also significantly inhibited in Gaucher cells. Atomic forcemicroscopy revealed that sphingolipid accumulation was associated with a more compliant membranecapable of producing an increased number of nanotubes. The results imply that glycosphingolipidaccumulation in the plasma membrane has significant effects on membrane properties, which may beimportant in the pathogenesis of Gaucher disease.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 8 : 1 (2018), p. 157. -
További szerzők:Soltész Lilla (1994-) (orvos) Kovács Tamás (1985-) (általános orvos) Bozó Tamás Mészár Zoltán Mihály (1977-) (agrármérnök) Kellermayer Miklós Szöllősi János (1953-) (biofizikus) Nagy Péter (1971-) (biofizikus)
Pályázati támogatás:K120302
OTKA
K109480
OTKA
K124966
OTKA
GINOP-2.3.2-15-2016-00020
GINOP
GINOP-2.3.2-15-2016-00044
GINOP
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

10.

001-es BibID:BIBFORM115320
035-os BibID:(cikkazonosító)17379 (WoS)001086926800046 (Scopus)85174148655
Első szerző:Bede-Fazekas Ákos
Cím:Empirical delineation of the forest-steppe zone is supported by macroclimate / Ákos Bede-Fazekas, Péter Török, László Erdős
Dátum:2023
ISSN:2045-2322
Megjegyzések:Eurasian forest-steppes form a 9000-km-long transitional zone between temperate forests and steppes, featuring a complex mosaic of herbaceous and woody habitats. Due to its heterogeneity regarding climate, topography and vegetation, the forest-steppe zone has been divided into several regions. However, a continental-scale empirical delineation of the zone and its regions was missing until recently. Finally, a map has been proposed by Erdos et al. based on floristic composition, physiognomy, relief, and climate. By conducting predictive distribution modeling and hierarchical clustering, here we compared this expert delineation with the solely macroclimate-based predictions and clusters. By assessing the discrepancies, we located the areas where refinement of the delineation or the inclusion of non-macroclimatic predictors should be considered. Also, we identified the most important variables for predicting the existence of the Eurasian forest-steppe zone and its regions. The predicted probability of forest-steppe occurrence showed a very high agreement with the expert delineation. The previous delineation of the West Siberia region was confirmed by our results, while that of the Inner Asia region was the one least confirmed by the macroclimate-based model predictions. The appropriate delineation of the Southeast Europe region from the East Europe region should be refined by further research, and splitting the Far East region into a southern and northern subregion should also be considered. The main macroclimatic predictors of the potential distribution of the zone and its regions were potential evapotranspiration (zone and regions), annual mean temperature (regions), precipitation of driest quarter (regions) and precipitation of warmest quarter (zone), but the importance of climatic variables for prediction showed great variability among the fitted predictive distribution models.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 13 : 1 (2023), p. 1-13. -
További szerzők:Török Péter (1979-) (biológus-ökológus) Erdős László
Pályázati támogatás:KKP 144068
NKFIH
K 137573
OTKA
FK 134384
NKFIH
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Intézményi repozitóriumban (DEA) tárolt változat
Borító:

11.

001-es BibID:BIBFORM103846
035-os BibID:(WOS)000860095400052 (Scopus)85139251192
Első szerző:Bereczki Ilona (vegyész, antibiotikumkémikus)
Cím:Semisynthetic teicoplanin derivatives with dual antimicrobial activity against SARS-CoV-2 and multiresistant bacteria / Ilona Bereczki, Vladimir Vimberg, Eszter Lőrincz, Henrietta Papp, Lajos Nagy, Sándor Kéki, Gyula Batta, Ana Mitrović, Janko Kos, Áron Zsigmond, István Hajdú, Zsolt Lőrincz, Dávid Bajusz, László Petri, Jan Hodek, Ferenc Jakab, György M. Keserű, Jan Weber, Lieve Naesens, Pál Herczegh, Anikó Borbás
Dátum:2022
ISSN:2045-2322
Megjegyzések:Patients infected with SARS-CoV-2 risk co-infection with Gram-positive bacteria, which severely affects their prognosis. Antimicrobial drugs with dual antiviral and antibacterial activity would be very useful in this setting. Although glycopeptide antibiotics are well-known as strong antibacterial drugs, some of them are also active against RNA viruses like SARS-CoV-2. It has been shown that the antiviral and antibacterial efficacy can be enhanced by synthetic modifications. We here report the synthesis and biological evaluation of seven derivatives of teicoplanin bearing hydrophobic or superbasic side chain. All but one teicoplanin derivatives were effective in inhibiting SARS-CoV-2 replication in VeroE6 cells. One lipophilic and three perfluoroalkyl conjugates showed activity against SARS-CoV-2 in human Calu-3 cells and against HCoV-229E, an endemic human coronavirus, in HEL cells. Pseudovirus entry and enzyme inhibition assays established that the teicoplanin derivatives efficiently prevent the cathepsin-mediated endosomal entry of SARS-CoV-2, with some compounds inhibiting also the TMPRSS2-mediated surface entry route. The teicoplanin derivatives showed good to excellent activity against Gram-positive bacteria resistant to all approved glycopeptide antibiotics, due to their ability to dually bind to the bacterial membrane and cell-wall. To conclude, we identified three perfluoralkyl and one monoguanidine analog of teicoplanin as dual inhibitors of Gram-positive bacteria and SARS-CoV-2.
Tárgyszavak:Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
teicoplanin
SARS-CoV-2
Megjelenés:Scientific Reports. - 12 : 1 (2022), p. 12-17. -
További szerzők:Vimberg, Vladimir (1981-) (molekuláris biológus) Lőrincz Eszter Boglárka (1993-) (vegyész) Papp Henrietta (1983-) (vegyész) Nagy Lajos (1979-) (vegyész) Kéki Sándor (1964-) (polimer kémikus) Batta Gyula (1953-) (molekula-szerkezet kutató) Mitrović, Ana (1984-) (Biológus) Kos, Janko (1980-) (Biológus) Zsigmond Áron (1986-) (Biológus) Hajdu István (1981-) (vegyész) Lőrincz Zsolt (1979-) (Biológus) Bajusz Dávid (1984-) (Biológus) Petri László (1981-) (biológus) Hodek, Jan (1967-) (biológus, kémikus) Jakab Ferenc (1977-) (biológus) Keserű György Miklós (1976-) (Biológus) Weber, Jan (1979-) (biológus, mikrobiológus) Neasens, Lieve (1977-) (biokémia, sejtbiológia, molekuláris biológia) Herczegh Pál (1947-) (vegyész, antibiotikumkémikus) Borbás Anikó (1965-) (vegyész)
Pályázati támogatás:K132870
OTKA
GINOP-2.3.4-15-2020-00008
GINOP
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Intézményi repozitóriumban (DEA) tárolt változat
Borító:

12.

001-es BibID:BIBFORM104153
035-os BibID:(cikkazonosító)19599 (WOS)000594824100026 (Scopus)85095813638
Első szerző:Borics Gábor (biológus)
Cím:Trait convergence and trait divergence in lake phytoplankton reflect community assembly rules / Gábor Borics, Viktória B-Béres, István Bácsi, Balázs A. Lukács, E. T-Krasznai, Zoltán Botta-Dukát, Gábor Várbíró
Dátum:2020
ISSN:2045-2322
Megjegyzések:Environmental filtering and limiting similarity are those locally acting processes that influence community structure. These mechanisms acting on the traits of species result in trait convergence or divergence within the communities. The role of these processes might change along environmental gradients, and it has been conceptualised in the stress-dominance hypothesis, which predicts that the relative importance of environmental filtering increases and competition decreases with increasing environmental stress. Analysing trait convergence and divergence in lake phytoplankton assemblages, we studied how the concepts of 'limiting similarity' versus 'environmental filtering' can be applied to these microscopic aquatic communities, and how they support or contradict the stress-dominance hypothesis. Using a null model approach, we investigated the divergence and convergence of phytoplankton traits along environmental gradients represented by canonical axes of an RDA. We used Rao's quadratic entropy as a measure of functional diversity and calculated effect size (ES) values for each sample. Negative ES values refer to trait convergence, i.e., to the higher probability of the environmental filtering in community assembly, while positive values indicate trait divergence, stressing the importance of limiting similarity (niche partitioning), that is, the competition between the phytoplankters. Our results revealed that limiting similarity and environmental filtering may operate simultaneously in phytoplankton communities, but these assembly mechanisms influenced the distribution of phytoplankton traits differently, and the effects show considerable changes along with the studied scales. Studying the changes of ES values along with the various scales, our results partly supported the stress-dominance hypothesis, which predicts that the relative importance of environmental filtering increases and competition decreases with increasing environmental stress.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 10 : 1 (2020), p. 1-11. -
További szerzők:B-Béres Viktória (1981-) (biológus) Bácsi István (1977-) (biológus) Lukács Balázs András (1979-) (ökológus) Krasznai Enikő (biológus) Botta-Dukát Zoltán Várbíró Gábor (biológus)
Pályázati támogatás:NKFIH-K-132150
Egyéb
NKFIH-FK-127939
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