@article{MTMT:34764951,
	title = {Comparative transcriptome study highlights the versatility of nitrogen metabolism in Chlamydomonas},
	url = {https://m2.mtmt.hu/api/publication/34764951},
	author = {Rani, Vaishali and Shetty, Prateek and Maróti, Gergely},
	doi = {10.1016/j.algal.2024.103458},
	journal-iso = {ALGAL RES},
	journal = {ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS},
	volume = {79},
	unique-id = {34764951},
	issn = {2211-9264},
	abstract = {Nitrogen is an essential macronutrient and nitrate is one of the main forms of this macronutrient available for plants and microbes. Nitrate is not only the substrate for the nitrate assimilation pathway, but also a crucial signal for the regulation of numerous metabolic, developmental, and cellular differentiation processes. In the present study, two species of the Chlamydomonas genus, Chlamydomonas reinhardtii cc124 and Chlamydomonas sp. MACC-216 were used to investigate the versatility of nitrate metabolism in green microalgae. Quantification of nitrate removal efficiency showed that Chlamydomonas sp. MACC-216 strongly outperforms C. reinhardtii cc124. Transcriptional changes occurring under nitrate-replete and nitrate-deplete conditions were specifically investigated in the selected species of Chlamydomonas. Whole transcriptome analysis revealed that the genes playing a role in nitrate assimilation did not show differential expression in C. reinhardtii cc124 under changing nitrate conditions (only 45 genes exhibited differential regulation), while in Chlamydomonas sp. MACC-216 a large set of genes (3143) showed altered expression. Furthermore, genes responsible for urea metabolism, like DUR3A gene corresponding to urea transport, were found to be upregulated in Chlamydomonas sp. MACC-216 under nitrate-deplete condition, while the same gene showed elevated expression level in C. reinhardtii cc124 under nitrate-replete condition. The present study indicated the diverseness of nitrate metabolism among species within the Chlamydomonas genus.},
	keywords = {Chlamydomonas; transcriptome analysis; urea metabolism; Nitrate-deplete; Nitrate-replete},
	year = {2024},
	eissn = {2211-9264},
	pages = {1-13},
	orcid-numbers = {Maróti, Gergely/0000-0002-3705-0461}
}

@article{MTMT:34753315,
	title = {Two chironomid-inferred mean July air temperature reconstructions in the South Carpathian Mountains over the last 2000 years},
	url = {https://m2.mtmt.hu/api/publication/34753315},
	author = {Szabó, Zoltán and Buczkó, Krisztina and Korponai, János and Luoto, T and Begy, RCs and Haliuc, A and Veres, D and Hamerlik, L and Csorba, R and Zsigmond, AR and Darabos, Gabriella and Méhes, Nikoletta and Kövér, Csilla and Magyari, Enikő Katalin},
	doi = {10.1177/09596836241236353},
	journal-iso = {HOLOCENE},
	journal = {HOLOCENE},
	volume = {In press},
	unique-id = {34753315},
	issn = {0959-6836},
	abstract = {We present chironomid-based reconstructions of mean July air temperature changes over the last 2000 years from Lake Latoriței (1530 m a.s.l.) in the Southern Carpathians. A multi-proxy analysis was performed along a 58 cm long sediment core and two training sets were used for quantitative July air temperature reconstructions: the Eastern-European (EE, 212 lakes) and the Finnish-Polish-Carpathian (FPC, 273 lakes). The transfer functions had a coefficient of determination (r2) 0.88 and 0.91 with a root mean squared error of prediction (RMSEP) 0.88°C and 1.02°C. Despite possible biases resulting from methodological problems and the ecological complexity of the chironomid response to both climatic and environmental changes, the agreement of the temperature reconstruction of Lake Latoriței with other alpine records suggests that the transfer function successfully reconstructed past summer temperatures between 750 and 1830 CE. Biases in the temperature reconstruction in the period before 750 and after 1830 CE were likely caused by increased abundance of rheophilic and semi-terrestrial chironomid species related to increased inflow activity before 750 CE and local land use changes after 1830 CE, which was also indicated by increasing deforestation and increasing lake productivity in the pollen and diatom records. Our results suggest that the region experienced a warm period between 750 and 1360 CE, and a cold period between 1360 and 1600 CE followed by fluctuating summer temperatures until 1830 CE. These events were associated with the so-called ‘Mediaeval Warm Period’ (MWP) and the ‘Little Ice Age’ (LIA), respectively. The inference models reconstructed a decrease in July air temperatures by 0.7°C–1.1°C during the LIA relative to the warmer MWP. We also demonstrated that the FPC training set gives better results, supporting that local/continental training sets are efficient to detect weak amplitude summer temperature changes in the Late-Holocene.},
	keywords = {Chironomids; late-Holocene; Finnish-Polish-Carpathian training set; mean July air temperature reconstruction; multi-proxy palaeoecology; RWP-LALIA-MWP-LIA},
	year = {2024},
	eissn = {1477-0911},
	orcid-numbers = {Korponai, János/0000-0003-0211-192X; Darabos, Gabriella/0000-0001-8070-5630; Magyari, Enikő Katalin/0000-0002-2844-8937}
}

@article{MTMT:34730183,
	title = {Apis mellifera filamentous virus from a honey bee gut microbiome survey in Hungary},
	url = {https://m2.mtmt.hu/api/publication/34730183},
	author = {Papp, Márton and Tóth, Adrienn Gréta and Békési, László and Farkas, Róbert László and Makrai, László and Maróti, Gergely and Solymosi, Norbert},
	doi = {10.1038/s41598-024-56320-x},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {14},
	unique-id = {34730183},
	issn = {2045-2322},
	abstract = {In Hungary, as part of a nationwide, climatically balanced survey for a next-generation sequencing-based study of the honey bee (Apis mellifera) gut microbiome, repeated sampling was carried out during the honey production season (March and May 2019). Among other findings, the presence of Apis mellifera filamentous virus (AmFV) was detected in all samples, some at very high levels. AmFV-derived reads were more abundant in the March samples than in the May samples. In March, a higher abundance of AmFV-originated reads was identified in samples collected from warmer areas compared to those collected from cooler areas. A lower proportion of AmFV-derived reads were identified in samples collected in March from the wetter areas than those collected from the drier areas. AmFV-read abundance in samples collected in May showed no significant differences between groups based on either environmental temperature or precipitation. The AmFV abundance correlated negatively with Bartonella apihabitans, Bartonella choladocola, and positively with Frischella perrara, Gilliamella apicola, Gilliamella sp. ESL0443, Lactobacillus apis, Lactobacillus kullabergensis, Lactobacillus sp. IBH004. De novo metagenome assembly of four samples resulted in almost the complete AmFV genome. According to phylogenetic analysis based on DNA polymerase, the Hungarian strains are closest to the strain CH-05 isolated in Switzerland.},
	year = {2024},
	eissn = {2045-2322},
	pages = {1-8},
	orcid-numbers = {Papp, Márton/0000-0003-4975-253X; Maróti, Gergely/0000-0002-3705-0461; Solymosi, Norbert/0000-0003-1783-2041}
}

@article{MTMT:34717582,
	title = {Diatom metacommunity structuring in a large lake: geomorphic, water chemistry and dispersal effects on diatom guilds in Lake Ladoga (north-western Russia)},
	url = {https://m2.mtmt.hu/api/publication/34717582},
	author = {Rusanov, Alexander G. and Kurashov, Evgeny A. and Rasulova, Anna M. and Bíró, Tibor and Vadkerti, Edit and Ács, Éva},
	doi = {10.1007/s00027-024-01055-0},
	journal-iso = {AQUAT SCI},
	journal = {AQUATIC SCIENCES},
	volume = {86},
	unique-id = {34717582},
	issn = {1015-1621},
	abstract = {The relative importance of environmental filtering and dispersal in structuring metacommunities of littoral periphytic diatoms was assessed within a large lake (Lake Ladoga, north-western Russia). We hypothesized that different diatom functional guilds (high-profile, low-profile, motile and planktic) would respond differently to environmental and spatial variables, depending on their mode of attachment and dispersal ability. Guilds showed distinct distributional patterns along a gradient of wave-induced disturbance: low-profile diatoms dominated in exposed shorelines (high disturbance), whereas high-profile and motile diatoms were more abundant in coastal wetlands (low disturbance). Redundancy analysis with variation partitioning of the entire diatom community revealed that environmental variables (littoral geomorphology and water chemistry) outperformed spatial variables, indicating a predominant role of species sorting. When the diatom community was deconstructed into functional groups, benthic guilds (i.e., low-profile, high-profile and motile) showed higher dependence on environmental factors, whereas the planktic guild was primarily predicted by spatial factors. Thus, benthic taxa with lower dispersal abilities were less impacted by mass effects than planktic taxa. Among benthic guilds, motile diatoms were less sensitive to water chemistry compared to low-profile and high-profile diatoms, suggesting that a group-specific habitat preference may interfere with diatom responses to water quality changes. Hence, the response of diatom guilds to water quality parameters was related to their resistance to wave action. Overall, we concluded that the higher importance of environmental filtering than dispersal-related processes in shaping the diatom metacommunity resulted from a combination of a strong environmental gradient in geomorphology/water chemistry and the intermediate spatial scale of our study.},
	keywords = {DISPERSAL; EUTROPHICATION; Diatom guilds; Lake Ladoga; littoral geomorphology; mass efects},
	year = {2024},
	eissn = {1420-9055},
	orcid-numbers = {Rusanov, Alexander G./0000-0003-1597-0731; Kurashov, Evgeny A./0000-0002-4486-2804; Rasulova, Anna M./0000-0003-4400-2000; Bíró, Tibor/0000-0002-5553-9850; Vadkerti, Edit/0000-0001-9513-5546; Ács, Éva/0000-0003-1774-157X}
}

@article{MTMT:34510709,
	title = {Investigation of the last two centuries sedimentation dynamics in high-altitude lakes of Southern Carpathians, Romania},
	url = {https://m2.mtmt.hu/api/publication/34510709},
	author = {Begy, Róbert-Csaba and Savin, Codrin-F. and Korponai, János and Magyari, Enikő Katalin and Kovács, Tibor},
	doi = {10.1038/s41598-024-51812-2},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {14},
	unique-id = {34510709},
	issn = {2045-2322},
	abstract = {This study investigates the last two centuries sedimentation dynamics in four high-altitude lakes located in Southern Carpathians, Romania. Furthermore, a novel approach is proposed for identifying the anthropic or natural underlying causes, by comparison of the acceleration of the change in sedimentation rate with a baseline growth rate trend provided by an isolated peat bog. The high-resolution chronologies were developed using the 210 Pb dating technique and the CRS model. 137 Cs alternative time-marker validated the age-depth models and reassured the quality of the results. The results indicated several short-interval high sedimentation events within the lake cores, yielding up to five times the average rate for the investigated period. The cause of the high sedimentation episodes was generally attributed to anthropic activities (primarily road construction) and extreme natural events. A first-order derivative equation was employed to plot the acceleration in the sedimentation rate of the lakes with the peat bog baseline. The discrepancies between the acceleration trends highlighted significant deviations from the natural variation tendencies and provided preliminary data regarding the underlying causes of the intense sedimentation periods.},
	year = {2024},
	eissn = {2045-2322},
	orcid-numbers = {Korponai, János/0000-0003-0211-192X; Magyari, Enikő Katalin/0000-0002-2844-8937; Kovács, Tibor/0000-0003-2606-0397}
}

@article{MTMT:34500851,
	title = {Functional properties of planktic microalgae determine their habitat selection},
	url = {https://m2.mtmt.hu/api/publication/34500851},
	author = {Görgényi, Judit and Török-Krasznai, Enikő and Lukács, Áron and Kókai, Zsuzsanna and Bácsiné Béres, Viktória and Várbíró, Gábor and Ács, Éva and Kiss, Keve Tihamér and Tóthmérész, Béla and Borics, Gábor},
	doi = {10.1007/s10750-023-05421-1},
	journal-iso = {HYDROBIOLOGIA},
	journal = {HYDROBIOLOGIA},
	volume = {851},
	unique-id = {34500851},
	issn = {0018-8158},
	abstract = {In this study, we aim to investigate how the functional properties of microalgae help to delineate the major groups of aquatic habitats. Using functional trait-based and Reynolds’ functional group-based approaches similarities of the microalgal flora of all aquatic habitats occurring in Hungary were compared. The habitats covered the whole size spectrum of standing waters (10-2–108m2) and water currents (watershed: 102–1011m2), , limnological and chemical properties. Both functional trait-based and functional group-based habitat classifications overrode the hydromorphology-based typology, however, functional group-based clusters showed closer resemblance to limnological-hydromorphological types than clusters created by trait-based approaches both for qualitative and quantitative data. Most of the aquatic habitats that have similar limnological characteristics showed resemblance in the functional properties of their microflora. Rivers and river-related habitats were the most diverse functionally. These were followed by standing waters with extended macrophyte coverage. The small, unique habitats displayed the lowest functional richness. The occurrence of several functional groups in some extreme habitats implies two alternative explanations: first, the habitat template of the groups is wider than defined in the original description; second, detailed information on the autecology of species assigned to a functional group necessitates the creation of new groups specific for the unique habitats.},
	keywords = {PHYTOPLANKTON; habitat selection; TRAIT COMPOSITION},
	year = {2024},
	eissn = {1573-5117},
	pages = {801-821},
	orcid-numbers = {Kókai, Zsuzsanna/0000-0003-0315-9343; Várbíró, Gábor/0000-0001-5907-3472; Ács, Éva/0000-0003-1774-157X}
}

@article{MTMT:34498476,
	title = {Comparison of plant biostimulating properties of Chlorella sorokiniana biomass produced in batch and semi-continuous systems supplemented with pig manure or acetate},
	url = {https://m2.mtmt.hu/api/publication/34498476},
	author = {Stirk, Wendy A. and Bálint, Péter and Široká, Jitka and Novák, Ondřej and Rétfalvi, Tamás and Berzsenyi, Zoltán and Notterpek T., Jácint and Varga, Zoltán and Maróti, Gergely and van Staden, Johannes and Strnad, Miroslav and Ördög, Vince},
	doi = {10.1016/j.jbiotec.2024.01.002},
	journal-iso = {J BIOTECHNOL},
	journal = {JOURNAL OF BIOTECHNOLOGY},
	volume = {381},
	unique-id = {34498476},
	issn = {0168-1656},
	abstract = {Microalgae-derived biostimulants provide an eco-friendly biotechnology for improving crop productivity. The strategy of circular economy includes reducing biomass production costs of new and robust microalgae strains grown in nutrient-rich wastewater and mixotrophic culture where media is enriched with organic carbon. In this study, Chlorella sorokiniana was grown in 100 l bioreactors under sub-optimal conditions in a greenhouse. A combination of batch and semi-continuous cultivation was used to investigate the growth, plant hormone and biostimulating effect of biomass grown in diluted pig manure and in nutrient medium supplemented with Naacetate. C. sorokiniana tolerated the low light (sum of PAR 0.99 ± 0.18 mol/photons/(m2 /day)) and temperature (3.7–23.7◦ C) conditions to maintain a positive growth rate and daily biomass productivity (up to 149 mg/l/ day and 69 mg/l/day dry matter production in pig manure and Na-acetate supplemented cultures respectively). The protein and lipid content was significantly higher in the biomass generated in batch culture and dilute pig manure (1.4x higher protein and 2x higher lipid) compared to the Na-acetate enriched culture. Auxins indole-3- acetic acid (IAA) and 2-oxindole-3-acetic acid (oxIAA) and salicylic acid (SA) were present in the biomass with significantly higher auxin content in the biomass generated using pig manure (> 350 pmol/g DW IAA and > 84 pmol/g DW oxIAA) compared to cultures enriched with Na-acetate and batch cultures (< 200 pmol/g DW IAA and < 27 pmol/g DW oxIAA). No abscisic acid and jasmonates were detected. All samples had plant biostimulating activity measured in the mungbean rooting bioassay with the Na-acetate supplemented biomass eliciting higher rooting activity (equivalent to 1–2 mg/l IBA) compared to the pig manure (equivalent to 0.5–1 mg/l IBA) and batch culture (equivalent to water control) generated biomass. Thus C. sorokiniana MACC728 is a robust new strain for biotechnology, tolerating low light and temperature conditions. The strain can adapt to alternative nutrient (pig manure) and carbon (acetate) sources with the generated biomass having a high auxin concentration and plant biostimulating activity detected with the mungbean rooting bioassay.},
	keywords = {Low temperature; salicylic acid; auxin; *Proteins; Low light; Rooting activity},
	year = {2024},
	eissn = {1873-4863},
	pages = {27-35},
	orcid-numbers = {Notterpek T., Jácint/0000-0002-7097-1799; Maróti, Gergely/0000-0002-3705-0461}
}

@article{MTMT:34163944,
	title = {Phytoplankton biomass and functional composition in the Danube River and selected tributaries: a case study Joint Danube Survey 4},
	url = {https://m2.mtmt.hu/api/publication/34163944},
	author = {Stanković, Igor and Hanžek, Nikola and Mischke, Ute and Krisa, Harald and Velická, Zuzana and Török-Krasznai, Enikő and Kiss, Keve Tihamér and Belkinova, Detelina and Bălan, Marinela and Amăriucăi, Vlad and Diaconu, Ionela and Borics, Gábor},
	doi = {10.1007/s10750-023-05359-4},
	journal-iso = {HYDROBIOLOGIA},
	journal = {HYDROBIOLOGIA},
	volume = {851},
	unique-id = {34163944},
	issn = {0018-8158},
	abstract = {In 2019, phytoplankton and environmental parameters were analysed monthly during the growing season from April to September at 26 sampling sites in the Danube and 10 additional sampling sites in the main tributaries as part of the Joint Danube Survey 4, organised by the ICPDR. Our results showed that both phytoplankton biomass and composition follow the River Continuum Concept on free-flowing sections, but also responds to hydromorphological changes where the largest dam Iron Gate represents the largest interruption of the river and the phytoplankton continuum. Besides longitudinal interruption, water residence time was the most important factor for phytoplankton composition, while nutrients were less relevant. The low phytoplankton biomass and its composition in the Danube support the oligotrophication trend, but this one-year study could not confirm it with certainty. Phytoplankton is the most important autotrophic component in the Upper and Middle Danube, where environmental conditions do not support the optimal growth of other river flora. The predominant FGs coda were A, C and D as a typical potamoplankton component, while the codon TB occurs throughout the Danube but is more prominent in the Upper reach and other river sections with higher discharge events.},
	keywords = {Hydromorphology; oligotrophication; potamoplankton; river continuum concept; Reynold’s functional groups},
	year = {2024},
	eissn = {1573-5117},
	pages = {973-998},
	orcid-numbers = {Stanković, Igor/0000-0001-7341-144X; Hanžek, Nikola/0009-0004-4904-8424; Belkinova, Detelina/0000-0003-0738-4871}
}

@article{MTMT:34740395,
	title = {The first sign of Surirella tientsinensis (Surirellaceae, Bacillariophyceae) spreading in the Carpathian region},
	url = {https://m2.mtmt.hu/api/publication/34740395},
	author = {Buczkó, Krisztina and Ács, Éva and B-Béres, Viktória and Kovács, Tibor and Stenger-Kovács, Csilla},
	doi = {10.17110/StudBot.2023.54.2.105},
	journal-iso = {STUD BOT HUNG},
	journal = {STUDIA BOTANICA HUNGARICA},
	volume = {54},
	unique-id = {34740395},
	issn = {0301-7001},
	abstract = {A characteristic, panduriform, large (ca 80 μm in length) diatom was sporadically detected in the Hungarian rivers in 2021 and 2022. Surirella tientsinensis Skvortzov emend. Liu was regarded as an Asian endemic species practically from its description until the second decade of the 21st century. Here we present the first Hungarian occurrence of the taxon from 2021, which is the second record for Europe, aft er the previously published Ukrainian data. In 2022 Surirella tientsinensis was detected from two other Hungarian river sampling localities. Due to the unmistakable outlook of the species, probably it is a new member of the Hungarian diatom flora, and its parallel occurrences in some localities within a short time, is noteworthy.},
	keywords = {PHYTOPLANKTON; Diatoms; TISZA; Danube; biogeography; Maros; Mures},
	year = {2023},
	pages = {105-112},
	orcid-numbers = {Ács, Éva/0000-0003-1774-157X; Stenger-Kovács, Csilla/0000-0001-6175-4904}
}

@article{MTMT:34539899,
	title = {Ecological aspects in the use of soil enzymes as indicators of anthropogenic soil pollution},
	url = {https://m2.mtmt.hu/api/publication/34539899},
	author = {Totubaeva, Nurzat and Batykova, Ainura and Karches, Tamás and Osmonaliev, Akylbek and Sultanalieva, Victoria},
	doi = {10.48077/scihor12.2023.88},
	journal-iso = {NAUKOVI HORYZONTY / SCIENTIFIC HORIZONS},
	journal = {NAUKOVI HORYZONTY / SCIENTIFIC HORIZONS},
	volume = {26},
	unique-id = {34539899},
	issn = {2663-2144},
	abstract = {In the contemporary era, with rapid industrial growth and urbanisation, analysing the impact of human activities on soil enzyme activity becomes crucial. The purpose of this study is to assess the influence of anthropogenic pollution on enzyme activity in soil. Research on enzyme activity levels in the soil in the city of KaraBalta, Chuy Region, Kyrgyz Republic, was conducted using biochemical analyses and specific enzymatic tests. The results revealed significant diversity in catalase activity in different soil samples. Some samples exhibited high activity, while others showed low activity. These differences may be associated with oxidative stress and the ability of soil microorganisms to decompose hydrogen peroxide. Urease analysis indicated the highest activity in soil samples after 2 hours, particularly near the protective barrier of the tailings pond, suggesting intensive chemical reactions, especially near pollution sources. Research has also revealed the diversity of protease activity in soil ecosystems, where samples with high activity may more effectively break down proteins compared to samples with low activity. To achieve ecological stability of soil resources, it is necessary to develop a management strategy, including monitoring and restoring priority areas considering local characteristics, supporting biodiversity, applying sustainable agricultural methods, and combating soil erosion. Important steps also include forming a community emphasising the importance of soil resources, funding research, and collaborating with local authorities, scientists, and the business community. The results of the study can be used in developing strategies to prevent the negative consequences of soil pollution, contributing to improved ecological resilience, especially for environmental protection agencies.},
	keywords = {Catalase; UREASE; ecosystem; ecological stability; sustainable development; *protease; каталаза; уреаза; протеаза; екосистема; екологічна стійкість; сталий розвиток},
	year = {2023},
	eissn = {2709-8877},
	pages = {88-98},
	orcid-numbers = {Karches, Tamás/0000-0003-2347-3559}
}