BIOREpository (Faculty of Biology, University of Belgrade)
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Leukogram dve vrste slepih miševa: Miniopterus schreibersii i Myotis capaccinii
No full textZbornik kratkih sadržaja, str. 56-57M3
Otkrivanje skrivenih parazita: Prevalenca i diverzitet helminata kod slepih miševa pomoću neinvazivnih metoda
No full textZbornik kratkih sadržaja, str. 58-59M3
Beneficial bacteria-based bioformulations as potential biocontrol and biocleaning solutions for stone heritage conservation
No full textIndigenous bacterial community of the deteriorated Rožanec Mithraeum monument (Slovenia) was analyzed as a basis for development of a synergistic bacterial consortium with potential to be re-introduced for biocontrol and biocleaning treatment of infested limestone monument. Core community constituents, based on the 16S rRNA gene sequences metabarcoding analysis, were representatives of Proteobacteria, Actinobacteriota, and Cyanobacteria phyla. Bacteria of Bacillus and Paenibacillus genera dominated in the culturable bacterial community. The most extensive enzymatic potential, as a foundation of biocleaning process, was observed for Bacillus mycoides MIT8.7 and Paenibacillus amylolyticus/taichungensis/tylopili/tundrae MIT8.18. In general, representatives of Bacillus genus demonstrated excellent amylase and protease potential, with small lipase, cellulase, mannanase, and xylanase activity. The highest PGI% values, against 7 autochthonous biodeteriogenic fungi, were measured for Bacillus velezensis MIT7.8 and Pseudomonas chlororaphis subsp. aurantiaca MIT4.11 highlighting them as the most promising bacterial antagonist for the consortium. Compared to commercial biocides 0.3% Preventol RI80, 100% Keim, and 100% BFA, recommended for application in stone conservation, Streptomyces anulatus 1–3 TSA and Streptomyces sp. 11-11MM full cultures also proved efficient and lacked any corrosive effect as reflected in unaltered surface roughness parameters Rq and Ra, over the 3 months application period on laboratory models made of limestone obtained in the proximity of the Rožanec Mithraeum relief. Characterized bacterial candidates possess potential to be used for development of a bacterial consortium that can be utilized in situ as a natural, environment friendly, and safe alternative effective in the conservation of stone heritage via joint activity making an important step towards desired widespread exclusion of biocide application.M214.02004
From mites to migration: linking Spinturnix psi morphometrics to the conservation of its host, the common bent-winged bat (Miniopterus schreibersii)
No full textGeometric morphometrics has contributed significantly to understanding ecological and evolutionary patterns by analyzing shape variation in biological structures, including species identification, population differentiation, and phenotypic plasticity of different organisms. In the context of bat ectoparasites, particularly wing mites, geometric morphometrics could present a novel approach for tracking the migratory patterns of bat hosts over time. To evaluate the morphological variation of Spinturnix psi (Kolenati, 1856) mites sampled from its typical host, Miniopterus schreibersii (Kuhl, 1817), in the three caves in eastern Serbia (Bogovinska, Sokolovica, and Sesalačka caves), we applied geometric morphometrics methods. We selected the sternal shield as the character to be analyzed and positioned 10 landmarks to describe its shape in females and 20 landmarks in males respectively. The analysis revealed statistically significant shape differences in the males, where a clear differentiation of specimens from Bogovinska cave compared to specimens from the other two localities was found, while in the females no differences were observed. Nevertheless, pairwise comparisons showed a weak but significant signal indicating differences between females from Bogovinska and Sesalačka caves. These subtle morphological variation in mites could help clarify the links between different host roosting sites, and a better understanding of the migration patterns of bats.M211.71895
Distribution and Diversity of Orchids in Ultramafic Areas of the Central Balkans
No full textstr. 71-71M3
Footprints of Worldwide Adaptation in Structured Populations of Drosophila melanogaster Through the Expanded DEST 2.0 Genomic Resource
No full textLarge-scale genomic resources can place genetic variation into an ecologically informed context. To advance our understanding of the population genetics of the fruit fly Drosophila melanogaster, we present an expanded release of the community-generated population genomics resource Drosophila Evolution over Space and Time (DEST 2.0; https://dest.bio/). This release includes 530 high-quality pooled libraries from flies collected across six continents over more than a decade (2009 to 2021), most at multiple time points per year; 211 of these libraries are sequenced and shared here for the first time. We used this enhanced resource to elucidate several aspects of the species' demographic history and identify novel signs of adaptation across spatial and temporal dimensions. For example, we showed that the spatial genetic structure of populations is stable over time, but that drift due to seasonal contractions of population size causes populations to diverge over time. We identified signals of adaptation that vary between continents in genomic regions associated with xenobiotic resistance, consistent with independent adaptation to common pesticides. Moreover, by analyzing samples collected during spring and fall across Europe, we provide new evidence for seasonal adaptation related to loci associated with pathogen response. Furthermore, we have also released an updated version of the DEST genome browser. This is a useful tool for studying spatiotemporal patterns of genetic variation in this classic model system.M21a11.042
Biomarker-Based Assessment of Four Native Fish Species in the Danube River Under Untreated Wastewater Exposure
No full textThis study assessed the impact of untreated wastewater discharge in the Danube River on four native fish species: barbel (Barbus barbus), vimba bream (Vimba vimba), perch (Perca fluviatilis), and white bream (Blicca bjoerkna). Biomarkers of exposure and effect were evaluated, including metal and metalloid bioaccumulation in gills, liver, and gonads, DNA damage (comet assay), chromosomal abnormalities (micronucleus assay), liver enzyme activities (ALT, AST), and erythrocyte maturation. White bream showed the highest genotoxic damage (TI% = 22.57), particularly in liver tissue, indicating high sensitivity to pollution. Perch had elevated DNA damage in blood (TI% = 22.69) and strong biomarker responses, likely due to its predatory behavior. Barbel displayed notable DNA damage in gills (TI% = 30.67) and liver (TI% = 20.35), aligning with sediment exposure due to its benthic habits. Vimba bream had the lowest responses, possibly reflecting reduced exposure or resilience. Element accumulation varied across tissues and species, with perch showing the highest overall levels. Hepatic enzyme activities (highest values: ALT = 105.69 in barbel; AST = 91.25 in white bream) and changes in erythrocyte profiles supported evidence of physiological stress. Integrated Biomarker Response (IBR) analysis identified white bream as the most sensitive species, followed by perch and barbel. These results emphasize the value of multi-species biomonitoring and the importance of species-specific traits in freshwater ecotoxicology.M212.444510
