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1.

001-es BibID:BIBFORM114058
035-os BibID:(cikkazonosító)2972 (WoS)001061389200001 (Scopus)85169130408
Első szerző:Aszalósné Balogh Rebeka (biológus)
Cím:Cryptogamic Biomass in Pannonic Acidic Sand Steppes Subject to Changing Land-Use / Aszalósné Balogh, Rebeka; Farkas, Edit; Tüdősné Budai, Júlia; Lőkös, László; Matus, Gábor
Dátum:2023
ISSN:2223-7747
Megjegyzések:Cryptogams, often neglected in vegetation dynamics studies, compose a large part of biomass and contribute to the biodiversity of sandy grasslands. Since the work of Verseghy (1970s), their productivity has not been analyzed in Hungary. We studied the lichen and bryophyte dynamics (hereinafter called cryptogams) at two Eastern Hungarian dry sandy grassland sites. The sites of Corynephorus canescens and of Festuca vaginata dominance, respectively, belonging to the community Festuco vaginatae?Corynephoretum have been monitored. We aimed at (1) quantifying the diversity and biomass of the cryptogamic communities; (2) exploring the cryptogamic response to management changes; and (3) studying the effect of experimental management (fencing) on the cryptogamic assemblages. The sites have been compared in 2013 and 2018, respectively. Forty microplots per site per management have been analyzed in both years. Samples of lichens and bryophytes were hand-sorted, dried and then measured. Fencing has led to increased biomass of cryptogams within a few years. Lichens in general benefited comparatively more from exclosure than bryophytes. The increase in lichen biomass (especially that of Cladonia rangiformis) is clearly due to the over 10-year absence of grazing. The only lichen favored by moderate grazing is the legally protected C. magyarica. Short spells of low-intensity grazing can promote the species richness of cryptogams in the community.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plants-Basel. - 12 : 16 (2023), p. 1-25. -
További szerzők:Farkas Edit Budai Júlia (1986-) (okleveles környezetkutató) Lőkös László Matus Gábor (1968-) (botanikus)
Pályázati támogatás:EFOP-3.6.1-16-2016-00022
EFOP
ÚNKP-19-3-I-DE-392
Egyéb
NKFIHK_17/124341
Egyéb
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2.

001-es BibID:BIBFORM098772
035-os BibID:(cikkazonosító)1550 (Wos)000690127000001 (Scopus)85111325523
Első szerző:Bácsi István (biológus)
Cím:Horseradish Essential Oil as a Promising Anti-Algal Product for Prevention of Phytoplankton Proliferation and Biofouling / Bácsi István, Gonda Sándor, Nemes-Kókai Zsuzsanna, B-Béres Viktória, Vasas Gábor
Dátum:2021
ISSN:2223-7747
Megjegyzések:Increased proliferation of algae is a current problem in natural and artificial water bodies. Controlling nutrients is the most sustainable treatment of increased algal proliferation, however in certain cases, it is not sufficiently available, or it does not provide results fast enough. Chemicals derived from natural sources, which could be effective in low concentrations and are biodegradable, may have an advantage over conventional chemical treatments. The main aim of the present study was to investigate the anti-cyanobacterial and anti-algal properties of allyl-isothiocyanate-containing essential oil produced from horseradish roots with a complex approach of the topic: on laboratory strains of cyanobacteria and eukaryotic algae, on microcosms containing natural phytoplankton assemblages, and on semi-natural biofilms. The results show that acute treatment can significantly reduce the viability of all the tested cyanobacteria and eukaryotic algae. Results of microcosm experiments with natural phytoplankton assemblages show that horseradish essential oil from 7.1 ? 10?6% (v/v) is applicable to push back phytoplankton proliferation even in natural assemblages. The individual number in the biofilm was dropped down to one-fifth of the original individual number, so 7.1 ? 10?6% (v/v) and higher concentration of the essential oil can be considered as a successful treatment against biofouling.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
horseradish essential oil
cyanobacteria
eukaryotic algae
phytoplankton
biofilm
Megjelenés:Plants-Basel. - 10 : 8 (2021), p. 1-16. -
További szerzők:Gonda Sándor (1984-) (gyógyszerész) Kókai Zsuzsanna (1989-) (hidrobiológus) B-Béres Viktória (1981-) (biológus) Vasas Gábor (1975-) (biológus-vegyész)
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3.

001-es BibID:BIBFORM118127
035-os BibID:(cikkazonosító)13020215
Első szerző:Irfan, Muhammad
Cím:Comparative Phytotoxicity of Metallic Elements on Duckweed Lemna gibba L. Using Growth- and Chlorophyll Fluorescence Induction-Based Endpoints / Muhammad Irfan, Ilona Mészáros, Sándor Szabó, Viktor Oláh
Dátum:2024
ISSN:2223-7747
Megjegyzések:In this study, we exposed a commonly used duckweed species-Lemna gibba L.to twelve environmentally relevant metals and metalloids under laboratory conditions. The phytotoxic effects were evaluated in a multi-well-plate-based experimental setup by means of the chlorophyll fluorescence imaging method. This technique allowed the simultaneous measuring of the growth and photosynthetic parameters in the same samples. The inhibition of relative growth rates (based on frond number and area) and photochemical efficiency (Fv/Fo and Y(II)) were both calculated from the obtained chlorophyll fluorescence images. In the applied test system, growth-inhibition-based phytotoxicity endpoints proved to be more sensitive than chlorophyll-fluorescence-based ones. Frond area growth inhibition was the most responsive parameter with a median EC50 of 1.75 mg L?1, while Fv/Fo, the more responsive chlorophyll-fluorescence-based endpoint, resulted in a 5.34 mg L?1 median EC50 for the tested metals. Ag (EC50 0.005?1.27 mg L?1), Hg (EC50 0.24?4.87 mg L?1) and Cu (EC50 0.37?1.86 mg L?1) were the most toxic elements among the tested ones, while As(V) (EC50 47.15?132.18 mg L?1), Cr(III) (EC50 6.22?19.92 mg L?1), Se(VI) (EC50 1.73?10.39 mg L?1) and Zn (EC50 3.88?350.56 mg L?1) were the least toxic ones. The results highlighted that multi-well-plate-based duckweed phytotoxicity assays may reduce space, time and sample volume requirements compared to the standard duckweed growth inhibition tests. These benefits, however, come with lowered test sensitivity. Our multi-well-plate-based test setup resulted in considerably higher median EC50 (3.21 mg L?1) for frond-number-based growth inhibition than the 0.683 mg L?1 median EC50 derived from corresponding data from the literature with standardized Lemna-tests. Under strong acute phytotoxicity, frond parts with impaired photochemical functionality may become undetectable by chlorophyll fluorometers. Consequently, the plant parts that are still detectable display a virtually higher average photosynthetic performance, leading to an underestimation of phytotoxicity. Nevertheless, multi-well-plate-based duckweed phytotoxicity assays, combined with chlorophyll fluorescence imaging, offer definite advantages in the rapid screening of large sample series or multiple species/clones. As chlorophyll fluorescence images provide information both on the photochemical performance of the test plants and their morphology, a joint analysis of the two endpoint groups is recommended in multi-well-plate-based duckweed phytotoxicity assays to maximize the information gained from the tests.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
békalencse
fitotoxicitás
ökotoxikológia
növekedésgátlás
klorofill fluoreszcencia indukció
nehézfém
Megjelenés:Plants-Basel. - 13 : 2 (2024), p.1-16. -
További szerzők:Mészáros Ilona (1952-) (biológus) Szabó Sándor (biológus) Oláh Viktor (1980-) (biológus)
Pályázati támogatás:FK 134296
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM096582
035-os BibID:(cikkazonosító)2045 (Wos)000712114300001 (Scopus)85115853954
Első szerző:Mikóné Hamvas Márta (biológus)
Cím:Microcystin-LR, a Cyanobacterial Toxin, Induces DNA Strand Breaks Correlated with Changes in Specific Nuclease and Protease Activities in White Mustard (Sinapis alba) Seedlings / M-Hamvas Márta, Vasas Gábor, Beyer Dániel, Nagylaki Eszter, Máthé Csaba
Dátum:2021
ISSN:2223-7747
Megjegyzések:There is increasing evidence for the induction of programmed cell death (PCD) in vascular plants by the cyanobacterial toxin microcystin?LR (MC?LR). Our aim was to detect the occurrence of PCD?related DNA strand breaks and their possible connections to specific nuclease and protease activities. DNA breaks were studied by the deoxynucleotidyl transferase mediated dUTP nick end labeling (TUNEL) method in the photoperiodically grown dicot model of white mustard (Sinapis alba). In?gel nuclease and protease activity assays showed changes in the activities of specific isoenzymes during treatments with MC?LR. Strand breaks occurred both in the developing root epidermis and cortex. Several isoenzyme activities were related to these breaks, for example: an increase in the activity of neutral 80?75 kDa, acidic high MW (100?120 kDa) and, most importantly, an increase in the activity of neutral 26?20 kDa nucleases, all of them having single? stranded DNA cleaving (SSP nuclease) activities. Increases in the activities of alkaline proteases in the 61?41 kDa range were also detected and proved to be in relation with MC?LR?induced PCD. This is one of the first pieces of evidence on the correlation of PCD?related DNA strand breaks with specific hydrolase activities in a model dicot treated with a cyanobacterial toxin known to have environmental importance.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
microcystin-LR
Sinapis alba
programmed cell death
TUNEL
SSP nuclease
protease
in-gel activity assay
Megjelenés:Plants-Basel. - 10 (2021), p. 1-12. -
További szerzők:Vasas Gábor (1975-) (biológus-vegyész) Beyer Dániel (1982-) (molekuláris biológus) Nagylaki Eszter Máthé Csaba (1966-) (biológus)
Pályázati támogatás:119647
OTKA
120638
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM099276
035-os BibID:(Wos)000744695100001 (Scopus)85121107196 (Cikkazonosító)2779
Első szerző:Molnár V. Attila (biológus, botanikus)
Cím:Orchids of Azerbaijani Cemeteries / Molnár V. Attila, Löki Viktor, Verbeeck Marc; Süveges Kristóf
Dátum:2021
ISSN:2223-7747
Megjegyzések:In order to explore their orchid flora, we performed surveys of 96 Azerbaijani burial places in 2018 and 2019. Altogether, 28 orchid taxa were found in 37 visited cemeteries. In the orchid diversity a remarkable pattern was observed: geographic latitude was significantly and positively related to the number of taxa and number of individuals. The most widespread and abundant orchids in Azerbaijani graveyards were Anacamptis pyramidalis and A. papilionacea (found in 23 and 8 cemeteries, respectively). Azerbaijani cemeteries can be important refuges for rare and threatened orchids, e.g., Himantoglossum formosum (three cemeteries), Ophrys sphegodes subsp. mammosa (eight), Orchis adenocheila (two), O. punctulata (three), O. stevenii (one) and Steveniella satyrioides (one). Epipactis turcica, detected in a single locality, was previously unknown to the flora of Azerbaijan. Additionally, we documented orchid tuber (salep) collection in two cemeteries.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plants-Basel. - 10 (2021), p. 1-10. -
További szerzők:Löki Viktor (1989-) (biológus) Verbeeck, Marc Süveges Kristóf (1994-)
Pályázati támogatás:K132573
OTKA
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6.

001-es BibID:BIBFORM114851
035-os BibID:(cikkazonosító)3307 (WoS)001080851500001 (Scopus)85172880050
Első szerző:Oláh Viktor (biológus)
Cím:Duckweed: Research Meets Applications / Viktor Oláh, Klaus-Juergen Appenroth, K. Sowjanya Sree
Dátum:2023
ISSN:2223-7747
Tárgyszavak:Természettudományok Biológiai tudományok szerkesztői levél
folyóiratcikk
Megjelenés:Plants-Basel. - 12 : 18 (2023), p. 1-8. -
További szerzők:Appenroth, Klaus-Juergen Sree, K. Sowjanya
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7.

001-es BibID:BIBFORM113447
035-os BibID:(cikkazonosító)2134 (Scopus)85161571565 (WoS)001005124600001
Első szerző:Oláh Viktor (biológus)
Cím:Sixth International Conference on Duckweed Research and Applications Presents Lemnaceae as a Model Plant System in the Genomics and Postgenomics Era / Viktor Oláh, Klaus-Juergen Appenroth, Eric Lam, K. Sowjanya Sree
Dátum:2023
ISSN:2223-7747
Megjegyzések:The 6th International Conference on Duckweed Research and Applications (6th ICDRA) was organized at the Institute of Plant Genetics and Crop Plant Research (IPK) located in Gatersleben, Germany, from 29 May to 1 June 2022. The growing community of duckweed research and application specialists was noted with participants from 21 different countries including an increased share of newly integrated young researchers. The four-day conference focused on diverse aspects of basic and applied research together with practical applications of these tiny aquatic plants that could have an enormous potential for biomass production.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plants-Basel. - 12 : 11 (2023), p. 1-12. -
További szerzők:Appenroth, Klaus-Juergen Lam, Eric Sree, K. Sowjanya
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8.

001-es BibID:BIBFORM107750
035-os BibID:(cikkazonosító)180 (WOS)000909169600001 (Scopus)85145834280
Első szerző:Oláh Viktor (biológus)
Cím:Species- and Metal-Specific Responses of the Ionome of Three Duckweed Species under Chromate and Nickel Treatments / Viktor Oláh, Muhammad Irfan, Zsuzsanna Barnáné Szabó, Zsófi Sajtos, Ágota Zsófia Ragyák, Boglárka Döncző, Marcel A. K. Jansen, Sándor Szabó, Ilona Mészáros
Dátum:2023
ISSN:2223-7747
Megjegyzések:In this study, growth and ionomic responses of three duckweed species were analyzed, namely Lemna minor, Landoltia punctata, and Spirodela polyrhiza, were exposed for short-term periods to hexavalent chromium or nickel under laboratory conditions. It was found that different duckweed species had distinct ionomic patterns that can change considerably due to metal treatments. The results also show that, because of the stress-induced increase in leaf mass-to-area ratio, the studied species showed different order of metal uptake efficiency if plant area was used as unit of reference instead of the traditional dry weight-based approach. Furthermore, this study revealed that mu XRF is applicable in mapping elemental distributions in duckweed fronds. By using this method, we found that within-frond and within-colony compartmentation of metallic ions were strongly metal- and in part species-specific. Analysis of duckweed ionomics is a valuable approach in exploring factors that affect bioaccumulation of trace pollutants by these plants. Apart from remediating industrial effluents, this aspect will gain relevance in food and feed safety when duckweed biomass is produced for nutritional purposes.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plants-Basel. - 12 : 1 (2023), p. 1-16. -
További szerzők:Irfan, Muhammad Barnáné Szabó Zsuzsanna (2000-) Sajtos Zsófi (1994-) (kémikus) Ragyák Ágota Döncző Boglárka (1987-) (biológiatanár-földrajztanár) Jansen, Marcel A. K. Szabó Sándor Mészáros Ilona (1952-) (biológus)
Pályázati támogatás:FK 134296
OTKA
2.3.3-15-2016-00029
GINOP
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9.

001-es BibID:BIBFORM107745
035-os BibID:(cikkazonosító)2763 (WOS)000738686000001 (Scopus)85121026642
Első szerző:Oláh Viktor (biológus)
Cím:Chlorophyll Fluorescence Imaging-Based Duckweed Phenotyping to Assess Acute Phytotoxic Effects / Viktor Oláh, Anna Hepp, Muhammad Irfan, Ilona Mészáros
Dátum:2021
ISSN:2223-7747
Megjegyzések:Duckweeds (Lemnaceae species) are extensively used models in ecotoxicology, and chlorophyll fluorescence imaging offers a sensitive and high throughput platform for phytotoxicity assays with these tiny plants. However, the vast number of potentially applicable chlorophyll fluorescence-based test endpoints makes comparison and generalization of results hard among different studies. The present study aimed to jointly measure and compare the sensitivity of various chlorophyll fluorescence parameters in Spirodela polyrhiza (giant duckweed) plants exposed to nickel, chromate (hexavalent chromium) and sodium chloride for 72 h, respectively. The photochemistry of Photosystem II in both dark- and light-adapted states of plants was assessed via in vivo chlorophyll fluorescence imaging method. Our results indicated that the studied parameters responded with very divergent sensitivity, highlighting the importance of parallelly assessing several chlorophyll fluorescence parameters. Generally, the light-adapted parameters were more sensitive than the dark-adapted ones. Thus, the former ones might be the preferred endpoints in phytotoxicity assays. Fv/Fm, i.e., the most extensively reported parameter literature-wise, proved to be the least sensitive endpoint; therefore, future studies might also consider reporting Fv/Fo, as its more responsive analogue. The tested toxicants induced different trends in the basic chlorophyll fluorescence parameters and, at least partly, in relative proportions of different quenching processes, suggesting that a basic distinction of water pollutants with different modes of action might be achievable by this method. We found definite hormetic patterns in responses to several endpoints. Hormesis occurred in the concentration ranges where the applied toxicants resulted in strong growth inhibition in longer-term exposures of the same duckweed clone in previous studies. These findings indicate that changes in the photochemical efficiency of plants do not necessarily go hand in hand with growth responses, and care should be taken when one exclusively interprets chlorophyll fluorescence-based endpoints as general proxies for phytotoxic effects.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
békalencse
klorofill fluoreszcencia indukció
ökotoxikológia
nehézfém
Megjelenés:Plants-Basel. - 10 : 12 (2021), p. 1-19. -
További szerzők:Hepp Anna (1991-) (biotechnológus) Irfan, Muhammad Mészáros Ilona (1952-) (biológus)
Pályázati támogatás:FK 134296
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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10.

001-es BibID:BIBFORM113736
035-os BibID:(cikkazonosító)2741 (WoS)001036584300001 (Scopus)85166213548
Első szerző:Szűcs Zsolt (gyógyszerész)
Cím:Antifungal Activity of Glucosinolate-Derived Nitriles and Their Synergistic Activity with Glucosinolate-Derived Isothiocyanates Distinguishes Various Taxa of Brassicaceae Endophytes and Soil Fungi / Zsolt Szűcs, Tamás Plaszkó, Eszter Bódor, Hajnalka Csoma, Lajos Ács-Szabó, Attila Kiss-Szikszai, Gábor Vasas, Sándor Gonda
Dátum:2023
ISSN:2223-7747
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
endophyte fungi
soil fungi
nitrile
isothiocyanate
ITC
synergy
antifungal activit
Megjelenés:Plants-Basel. - 12 : 14 (2023), p. 1-13. -
További szerzők:Plaszkó Tamás (1994-) (Biológus Msc) Bódor Eszter (1996-) Csoma Hajnalka (1979-) (biológus, szőlész-borász) Ács-Szabó Lajos (1985-) (biológus) Kiss-Szikszai Attila (1975-) (vegyész) Vasas Gábor (1975-) (biológus-vegyész) Gonda Sándor (1984-) (gyógyszerész)
Pályázati támogatás:OTKA-FK128021
OTKA
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