A5082104132- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Microbial bioremediation and biosurfactants
- Chromium effects and bioremediation
- Legume Nitrogen Fixing Symbiosis
- Methane Hydrates and Related Phenomena
- Graphite, nuclear technology, radiation studies
- Protist diversity and phylogeny
- Wastewater Treatment and Nitrogen Removal
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquatic Invertebrate Ecology and Behavior
- Nuclear reactor physics and engineering
- Agriculture, Plant Science, Crop Management
- Insect symbiosis and bacterial influences
- Geology and Paleoclimatology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Anaerobic Digestion and Biogas Production
- Plant and animal studies
- Genetic diversity and population structure
- Marine and coastal ecosystems
- Plant nutrient uptake and metabolism
- Plant Pathogens and Resistance
- Ancient and Medieval Archaeology Studies
- Bacteriophages and microbial interactions
- Forensic and Genetic Research
Sapientia Hungarian University of Transylvania
2014-2025
Universitatea Națională de Știință și Tehnologie Politehnica București
2012-2020
University of Bucharest
2020
Abstract Remote mountain lakes experience accelerating ecological change worldwide due to the ongoing warming. In this study, we analyze two alpine lakes, Lake Ana (1940 m) and Peleaga (2122 m), from Retezat National Park in Romania. The sediment cores cover ~ 400 years, our aim is reconstruct critical transitions, rate of ecosystem its driving factors. extent human disturbance weak at these today. Therefore, assumed principal role summer warming potential reorganizations. For verifying...
The results of 16S rRNA, gyrB and catA gene sequence comparisons reasserted DNA–DNA hybridization unambiguously proved that Rhodococcus jialingiae Wang et al. 2010 qingshengii Xu 2007 represent a single species. On the basis priority R. must be considered later synonym .
Here we present 115 whole mitogenomes and 92 Y-chromosomal Short Tandem Repeat (STR) Single Nucleotide Polymorphism (SNP) profiles from a Hungarian ethnic group, the Székelys (in Romanian: Secuii, in German: Sekler), living southeast Transylvania (Romania). The can be traced back to 12th century region, numerous scientific theories exist as their origin. We carefully selected sample providers that had local ancestors inhabiting small villages area of Odorheiu Secuiesc/Székelyudvarhely...
A Gram-stain-positive, strictly aerobic, mesophilic bacterium, designated H004T, was isolated from a water sample of the hypersaline and heliothermal Lake Ursu, Sovata, Romania. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain H004T formed distinct phyletic lineage within genus Rhodococcus. It shared highest sequence similarity with Rhodococcus yunnanensis YIM 70056T (98.80 %), followed by fascians LMG 3623T (98.73 cercidiphylli 65003T cerastii C5T (98.58 %)...
We tested whether chemical content of individual Tansy plants influences aboveground arthropod and belowground soil microbial community composition. use defence composition as focus for our analysis, given that changes in are a dominant mechanism expected to modify nutrient cycling. Detailed assessment food webs were made on tansy chemotypes. Next generation DNA analyses used assess bacterial community. defended by Camphor Borneol had higher total diversity than control (soils under...
Winter conditions in aquatic habitats of the temperate zone markedly differ from those present warmer seasons, nevertheless, relatively scarce information is available on planktonic microbial composition, as sites are not easily accessible and it was supposed traditionally that activity low during this cold period. Since microorganisms could have great impact ecosystem even winter, we explored various Eastern Carpathians regarding abundance taxonomic composition microorganisms. Although many...
In this study, different maize fields cultivated under management systems were sampled to test corn leaf aphid, Rhopalosiphum maidis, populations in terms of total and endosymbiotic bacterial diversity. Corn aphid natural collected from traditionally managed grown high agricultural landscape diversity as well conventionally treated high-input monoculture with fertilizers use, hence low Total community assessment by DNA sequencing was performed using the Illumina MiSeq platform. total, 365...
In this study a combination of both molecular and biochemical methods have been used to characterize the bacterial microbiota in water sediment saline lake Transylvania. The physicochemical characterization samples from different depths indicated stratification that affects distribution resident microorganisms, confirmed also by significant differences terms functional diversity microbial communities layers. superficial community shows good oxidative capability, degrading wide range organic...
A new betaproteobacterium, CGII-59m2T, was isolated from an activated sludge bioreactor which treated landfill leachate. The 16S rRNA gene sequence analysis revealed that strain CGII-59m2T belonged to the family Alcaligenaceae and shared highest pairwise similarity values with Parapusillimonas granuli LMG 24012T (97.7 %), various species of genus Bordetella (97.3-97.0 %) Candidimonas nitroreducens 24812T (97.0 %). Cells were rod-shaped, non-motile, oxidase- catalase-positive. predominant...
Beside sodium chloride, inland saline aquatic systems often contain other anions than chloride such as hydrogen carbonate and sulfate. Our understanding of the biological effects salt composition diversity is limited; therefore, aim this study was to examine effect different on growth halophilic bacteria. Accordingly, concentration preference 172 strains isolated from soda lakes that differed in ionic tested using media containing either carbonate, or sulfate anion values ranging 0 0.40...
A new betaproteobacterium, CGI-09T, was isolated from an activated sludge bioreactor which treated landfill leachate. Based on 16S rRNA gene sequence analysis, the strain shared highest pairwise similarity values with members of order Burkholderiales: Derxia gummosa IAM 13946T (family Alcaligenaceae), 93.7 % and Lautropia mirabilis DSM 11362T Burkholderiaceae), 93.6 %. Cells CGI-09T were rod-shaped non-motile. The oxidase catalase positive capable reducing nitrate to nitrite. predominant...
A new aerobic alphaproteobacterium, strain SA-279T, was isolated from a water sample of crater lake. The 16S rRNA gene sequence analysis revealed that SA-279T formed distinct lineage within the family Ancalomicrobiaceae and shared highest pairwise similarity values with Pinisolibacterravus E9T (96.4 %) Ancalomicrobiumadetum NBRC 102456T (94.2 %). Cells were rod-shaped, motile, oxidase catalase positive, capable forming rosettes. Its predominant fatty acids C18 : 1ω7c (69.0 C16 (22.7 %),...
The objective of this study was to establish and mathematically describe the phenol degrading properties a new Acinetobacter towneri CFII-87 strain, isolated from bioreactor treating landfill leachate. For purpose, biokinetic parameters biodegradation at various initial concentrations A. strain have been experimentally measured, four different mathematical inhibition models (Haldane, Yano, Aiba Edwards models) used simulate substrate-inhibited degradation process. results batch experiments...
A novel bacterium, CAI-18bT, was isolated from a bioreactor that treated landfill leachate using an oligotrophic growth medium. Phylogenetic analysis based on the 16S rRNA gene sequence revealed strain CAI-18bT is member of genus Rufibacter, showing 97.1 % pairwise similarity to Rufibacter roseus H359T, 96.4 tibetensis 1351T, glacialis MDT1-10-3T and 96.0 immobilis MCC P1T. Strain rod-shaped, motile, oxidase- catalase-positive. The predominant fatty acids were iso-C15 : 0 (24.1 %) iso-C17 1...
The effect of populin extract from black poplar (Populus nigra) on seven different late blight strains was tested under laboratory and field conditions. growth rate hyphae found to be significantly lower in vitro after 3 4 v/v% applications. Stain M16 resistant treatment lab conditions, however. Both 5% 10% concentration reduced the strain’s severity potato leaves conditions proved even more effective than conventionally used fungicides Infinito 687 Sc Valis M. Higher infection intensity at...