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421.
Investigation of bioremediation potential of zymogenous bacteria and fungi for crude oil degradation
Mila Ilić Mališa Antić Vesna Antić Jan Schwarzbauer Miroslav Vrvić Branimir Jovančićević 《Environmental Chemistry Letters》2011,9(1):133-140
Bioremediation potential of bacteria and fungi isolated from sludge samples has been investigated (Danube alluvium, Pančevo,
Serbia). Total isolated microorganisms were divided into three parts. One part was added with actidione antifungicide. The
second part was added with streptomycin antibiotic. The third part was without additives. Paraffinic type of crude oil was
a substrate for assessment of bioremediation potential. The simulated oil biodegradation lasted 30, 60 and 90 days. Parallel
with that, the experiments with blind trial were conducted. Extracts were isolated from the samples with chloroform in a separate
funnel. They were assayed for the group composition (alkanes, aromatics, alcohols and fatty acids) by column chromatography.
Alkane fraction was analysed by gas chromatography—mass spectrometry (GC–MS). The most intense oil degradation was achieved
in the experiments with bacteria, somewhat weaker with consortium of fungi and bacteria, and the weakest bioremediation potential
in these experiments was shown by fungi. 相似文献
422.
Gömöryová E Střelcová K Fleischer P Gömöry D 《Environmental monitoring and assessment》2011,174(1-4):31-45
This study focused on the responses of soil microorganisms to different management regimes on disturbed windthrow areas. Microbial parameters potentially serving as indicators of environmental changes within a long-term monitoring of forest development after large-scale disturbance events were assessed. Basal and substrate-induced respiration, N mineralisation, catalase activity, microbial biomass as well as functional diversity based on Biolog assay were determined in soil samples from three disturbed plots and an undisturbed reference plot in the Tatra National Park (Slovakia) since 2006. A relative congruence of inter-annual trends of microbial activity indicators at all plots results from a common response of microbiota to changes of climate at the landscape level after forest stands were destroyed. While catalase activity and functional diversity proved to be useful indicators of temporal trends, microbial biomass seems to reflect different management regimes at the disturbed plots. 相似文献
423.
Janković S Curčić M Radičević T Stefanović S Lenhardt M Durgo K Antonijević B 《Environmental monitoring and assessment》2011,181(1-4):153-163
This work has been developed to examine the level of non-dioxin-like (ndl) PCBs (28, 52, 101, 138, 153 and 180) in (a) ten different freshwater fish species from the Danube river, (b) two sampling points: up and downstream of the industrial zone of the city of Pancevo (ecological hot spot in Serbia) and (c) two time points i.e., in 2001 and 2006. Obtained results would serve to analyse spatial, temporal and congener profile characteristics of ndl PCBs cumulated in fish tissues due to environmental pollution. Sixty-four samples of the following species were collected: wels (Silirus glanus), pike (Esox lucius), bream (Abramis brama), crucian carp (Carassius carassius), pike pearch (Stizostedion lucioperca), barbel (Barbus barbus), tench (Tinca tinca), sterlet (Acipenser ruthenus L.), common carp (Cyprinus carpio) and bighead carp (Hypophthalmichthys nobilis). Gas chromatography coupled with electron capture detector was used for analysis of ndl PCBs. Total ndl PCBs content in upstream samples ranged from 2.7 to 98.1 ng/g and from 4.9 to 68.3 ng/g in 2001 and 2006, respectively. During the 5 years, ndl PCBs content increased significantly in downstream samples i.e., ndl PCBs varied from 13.7 to 46.1 ng/g and from 14.4 to 107.2 ng/g in 2001 and 2006, respectively. PCBs 138 and 180 were predominant congeners in 2001, while in 2006 the most abundant PCB congeners were 138 and 153. In 2006, the presence of PCB 28 and PCB 52 has indicated a recent contamination event. Data on continual monitoring of PCBs in all relevant environmental compartments together with appropriate biomonitoring data are expected to give comprehensive insight into the fate and behaviour profile of these contaminants. 相似文献
424.
Ludmila Oliveriusová Pavel Němec Zuzana Pavelková František Sedláček 《Die Naturwissenschaften》2014,101(7):557-563
Magnetoreception has been convincingly demonstrated in only a few mammalian species. Among rodents, magnetic compass orientation has been documented in four species of subterranean mole rats and two epigeic (i.e. active above ground) species—the Siberian hamster and the C57BL/6J mouse. The mole rats use the magnetic field azimuth to determine compass heading; their directional preference is spontaneous and unimodal, and their magnetic compass is magnetite-mediated. By contrast, the primary component of orientation response is learned in the hamster and the mouse, but both species also exhibit a weak spontaneous bimodal preference in the natural magnetic field. To determine whether the magnetic compass of wild epigeic rodents features the same functional properties as that of laboratory rodents, we investigated magnetic compass orientation in the bank vole Clethrionomys glareolus (Cricetidae, Rodentia). The voles exhibited a robust spontaneous bimodal directional preference, i.e. built nests and slept preferentially along the north-south axis, and deflected their directional preference according to a shift in the direction of magnetic north, clearly indicating that they were deriving directional information from the magnetic field. Thus, bimodal, axially symmetrical directional choice seems to be a common feature shared by epigeic rodents. However, spontaneous directional preference in the bank vole appeared to be more pronounced than that reported in the hamster and the mouse. These findings suggest that bank voles are well suited for future studies investigating the adaptive significance and mechanisms of magnetic orientation in epigeic rodents. 相似文献
425.
Gábor Árpád Czirják Péter László Pap Csongor István Vágási Mathieu Giraudeau Cosmin Mureşan Pascal Mirleau Philipp Heeb 《Die Naturwissenschaften》2013,100(2):145-151
The preen gland is a holocrine sebaceous gland of the avian integument which produces an oily secretion that is spread on the plumage during preening. It has been suggested that birds may defend themselves against feather-degrading bacteria (FDB) and other potential pathogens using preen gland secretions. However, besides some in vitro studies, the in vivo bacterial inhibitory effects of the preen oil on the abundance of feather-associated bacterial species has not yet been studied in passerines. Here we tested the effect of gland removal on the abundance of FDB and other-cultivable bacterial loads (OCB) of male house sparrows (Passer domesticus). Our results did not support earlier results on in vitro antibacterial activity of preen oil against FDB since the absence of the preen gland did not significantly affect their loads related to the control birds. In contrast, we found that preen gland removal led to higher loads of OCB. This result suggests that the antimicrobial spectrum of the preen oil is broader than previously thought and that, by reducing the overall feather bacterial loads, the preen gland could help birds to protect themselves against a variety of potentially harmful bacteria. 相似文献
426.
Škrbić Biljana D. Živančev Jelena Antić Igor Buljovčić Maja 《Environmental science and pollution research international》2021,28(13):16065-16080
Environmental Science and Pollution Research - The investigation conducted in the Vojvodina Province, as a typical European and one of the biggest agricultural regions in the Balkans, offers the... 相似文献
427.
Agyeman Prince Chapman John Kingsley Kebonye Ndiye Michael Ahado Samuel Kudjo Borůvka Luboš Němeček Karel Vašát Radim 《Environmental geochemistry and health》2022,44(10):3597-3613
Environmental Geochemistry and Health - Identifying a suitable geochemical background level (GBL) and an appropriate normalizer is imperative for ensuring soil quality, health, and security. The... 相似文献
428.
Bulatović Sandra Ilić Mila Šolević Knudsen Tatjana Milić Jelena Pucarević Mira Jovančićević Branimir Vrvić Miroslav M. 《Environmental geochemistry and health》2022,44(10):3451-3472
Environmental Geochemistry and Health - The oil pollutant in the Sava River aquifer in the residential area of Belgrade, Serbia was investigated in order to analyze the extent, origin and spatial... 相似文献
429.
Kobetičová Klára Černý Robert 《Environmental science and pollution research international》2022,29(48):72819-72826
Environmental Science and Pollution Research - Current artificial soils for ecotoxicological studies contain non-renewable materials that must be mined, and their production and processing consume... 相似文献
430.
Branković Snežana Bugarčić Marijana Bugarčić Filip Ž. Ostojić Aleksandar Petronijević Jelena Rosić Gvozden Radojević Ivana Selaković Dragica Simić Zoran Joksimović Nenad 《Environmental science and pollution research international》2022,29(39):58703-58715
Environmental Science and Pollution Research - Water pollution is a constant challenge for humanity. Sustainable economic development and environmental protection through a green economy structure... 相似文献