BIODIVERSITY OVERVIEW OF SODA PANS IN THE VOJVODINA REGION (SERBIA)

Due to their specific physical and chemical properties of water and soil soda pans of the Vojvodina region represent a unique type of habitats. Salinity is a major structuring factor which strongly affects species richness. Many halotolerant, alkalotolerant and halophilic organisms, together with numerous eurytopic elements inhabit these kinds of ecosystems. In this review we tried to compile the biodiversity information from various literature sources and give the best representation of what can be expected to be found in these shallow, temporary and intermittent aquatic environments. Only a few groups of organisms are fairly well studied, while many others are insufficiently investigated or the knowledge of them is lacking altogether. Best investigated are certain groups of algae and birds. Bacterial communities, as well as many invertebrate groups, are poorly studied or not investigated at all. Characteristic elements of flora and fauna, together with growing anthropogenic pressures make soda pans prime targets for protection

Growth parameters of vimba bream (Vimba vimba) in the Danube River near Belgrade (Serbia).

Age, growth, and length-weight relationship of the vimba bream (Vimba vimba) were analysed on a sample of 43 individuals from a commercial catch, caught between March and May 2017 in the Danube River near Belgrade. Total body length of the sampled fish ranged from 26.3 to 34.5 cm, and body weight from 223 to 554 g. Age of the sampled fish, determined from scales, ranged from 5+ to 8+, with the largest percentage of individuals in the age class 6+. The regression coefficient of the length-weight relationship was b = 3.28, which indicates a positive allometry. The parameters of the von Bertalanffy function were L∞ = 543.82, K = 0.09, and t0 = -2.41. The estimated phi-prime growth performance index (') was 4.44. The Fulton’s condition factor ranged from 1.04 to 1.42, with the mean value of 1.23. The length-at-age was back-calculated with the method of Monastyrsky, and the greatest relative growth increment was observed during the first two years of life

The phenolic constituents and antimicrobial activity of Xanthium spinosum (Asteraceae) extracts

Xanthium spinosum is a cosmopolitan annual herb used in traditional medicine worldwide. Although known from ethnobotanical studies, the species is scarcely investigated from the aspects of phytochemistry and biological activity. Therefore, the phenolic composition and biological activity of X. spinosum were examined. Plant specialised metabolites (phenolics) extracted from the roots, leaves and fruits with dichloromethane:methanol (1:1) were analysed by liquid chromatography mass spectrometry (LC-MS). In total 10 phenolic compounds were identified and quantified. Six compounds were common to all the extracts. Chlorogenic acid was the most abundant constituent in all the extracts (4.262 mg/g in the fruit extract, 0.820 mg/g in the leaf extract, and 0.540 mg/g in the root extract). The biological activity (antimicrobial and antibiofilm) of the extracts was tested against 12 microfungi and 12 bacterial strains by the microdilution method. All the extracts exhibited moderate antimicrobial and antibiofilm activity and inhibited the growth of most of the examined microorganisms. The obtained results indicate the potential role of the tested extracts in pharmacy and medicine

Ispitivanje otpornosti sorata kruške prema Erwinia amylovora metodom inokulacije nesazrelih plodova

Susceptibility of different pear cultivars to Erwinia amaylovora by artificial inoculated immature pear fruits are shown in this article. According obtained results significant differences among cultivars are confirmed and they could be divided in four groups. Most susceptibly cultivars were Santa Marija. Second group includes Williams, Morettini, Carmen, Hardenpont. As most resistant shown to be Magness, Turandot and two local varietyies Karamanka, as well as another unknown local cultivar. This results are compatible with literature data, but also confirmed observations about susceptibility of various pear cultivars to E. amylovora under natural infections. Artificial inoculation immature pear fruit could be considered as relativelu relible method for estimation of pear fruit trees resistance to this bacteria.U radu je prikazana reakcija plodova različitih sorata kruške prema Erwinia amylovora metodom inokulacije nesazrelih plodova. Utvrđeno je da postoje značajne razlike u osetljivosti raznih sorata kruške prema patogenu i one se mogu podeliti u četiri grupe prema korišćenoj skali. Najosetljivijom se pokazala sorta Santa Marija. Nešto manju osetljivost ispoljile su sorte Vilijamova, Moretini, Karmen i Hardenpont; najotpornijim su se pokazale Magnes, Turandot, Junska Lepotica, Karamanka i nepoznata autohtona sorta. Prema dosadašnjim saznanjima ovi rezultati su u saglasnosti sa podacima iz literature i zapažanjima o otpornosti sorti kruške prema E. amylovora, primenom metode inokulacije plodova. Istraživanja su pokazala da se ovakav metod utvrđivanja otpornosti kruške prema E. amylovora sa relativnom pouzdanošću može koristiti u ove svrhe

Diversity of diatom communities in the Velika Rusanda soda pan

Species richness and diversity of diatoms inhabiting different niches (water column, sediment surface and submerged plants) as well ionic composition of water (Na+, K+, Mg2+, Ca2+, Cl-, SO42-, CO32-, HCO3-) were studied in the Velika Rusanda soda pan during two years (late spring 2017 and 2018). These analyses are part of the preliminary study of diatom communities in soda pans in Serbia. The analysis of ionic composition confirmed previous finding that water of Velika Rusanda belongs to Na–HCO3–SO4–Cl chemical type. In 2017, a total of 15 taxa were identified, 5 in plankton and 14 in epiphytic community. In plankton the most abundant were Craticula halophila (36.25%) and Anomoeoneis sphaerophora (27.25%), while among epiphytic dominates Surirella brebissonii var. kuetzingii (46.25%). In 2018, a total of 22 taxa were identified, 3 in plankton, 19 in epiphytic community, and 14 on artificial substrate (brick). In plankton we recorded only a few individuals. The most dominant taxon in epiphytic community was Nitzschia supralitorea (95%), which also prevailed on brick (66.98%). The only genus recorded in 2017 was Rhopalodia, while genera presented only in 2018 were: Cocconeis, Halamphora, Hantzschia, Humidophila and Planothidium. Of the total number of identified taxa three were newly recorded for Serbian diatom flora: Hantzschia weyprechtii Grunow, Navicymbulla pusilla (Grunow) Krammer and Nitzschia thermaloides Hustedt. The most of identified taxa are characteristic for marine or brackish waters, as well as different types of freshwaters with elevated to highly elevated electrolyte content. The results of this preliminary study will help better understanding of diatom communities in soda pans and their assessment for conservation and restoration measures in these ecosystems.7th Balkan Botanical Congress, Book of abstracts, Novi Sad, Serbia, 10-14 September 201

Reconstructed Malacothermometer July Paleotemperatures from the Last Nine Glacials over the South-Eastern Carpathian Basin (Serbia)

In this study, the compiled malacological record of the two most important loess–palaeosol sequences (LPS) in Serbia was used to reconstruct the Malacothermometer July Paleotemperature (MTJP) of the last nine glacials. The sieved loess samples yielded shells of 11 terrestrial gastropod species that were used to estimate the MTJP. Veliki Surduk (covering the last three glacial cycles) and Stari Slankamen (covering the last fourth to ninth glacial cycle) LPSs previously lacked the malacological investigations. After the sieving, a total of 66,871 shells were found, from which 48,459 shells were used for the estimation of the MTJP. Through the studied period, the reconstructed MTJP was ranging from 14.4 °C to 21.5 °C. The lowest temperature was recorded during the formation of the loess unit L5, equivalent to the Marine Isotope Stage (MIS) 12. The second-coldest summers were occurring during the MIS 16 glacial. Although the warmest glacial was L8 (MIS 20) according to MTJP, these July temperatures might be overestimated due to only two samples from the poorly preserved L8 unit. The malacological material derived from the loess units at Veliki Surduk and Stari Slankamen LPSs showed great potential for July temperature reconstruction, as the comparison with other regional records showed similar climate changes. Further work is necessary to validate the age scale of the oldest samples, and a higher resolution sampling could lead to more detailed July temperature fluctuations, as was shown for the youngest glacial in this study. Likewise, estimating the July temperature using different proxies (e.g., pollen) from the same LPSs could be used to confirm the observed climate trends

Supplementary data for the article: Ljaljević Grbić, M.; Unković, N.; Dimkić, I.; Janaćković, P.; Gavrilović, M.; Stanojević, O.; Stupar, M.; Vujisić, L.; Jelikić, A.; Stanković, S.; et al. Frankincense and Myrrh Essential Oils and Burn Incense Fume against Micro-Inhabitants of Sacral Ambients. Wisdom of the Ancients? Journal of Ethnopharmacology 2018, 219, 1–14. https://doi.org/10.1016/j.jep.2018.03.003

Supplementary material for: [https://doi.org/10.1016/j.jep.2018.03.003]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2158