Zbornik Matice Srpske za Prirodne Nauke最新文献_第7页

The accumulation of K+, Ca2+, Na+ and P in Sinapis nigra L. grown in the presence of NaCl and silicon NaCl和硅胁迫下黑紫菜K+、Ca2+、Na+和P的积累

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1937077d

M. Daničić, M. Putnik-Delić, D. Lazić, S. Djuric

{"title":"The accumulation of K+, Ca2+, Na+ and P in Sinapis nigra L. grown in the presence of NaCl and silicon","authors":"M. Daničić, M. Putnik-Delić, D. Lazić, S. Djuric","doi":"10.2298/zmspn1937077d","DOIUrl":"https://doi.org/10.2298/zmspn1937077d","url":null,"abstract":"Saline stress is recognized as one of the most important abiotic stresses for plants in some regions of the world. Recent studies showed that silicon (Si) can play an important role in plant resistance to environmental conditions, such as excessive salinity. In the present experiment, Sinapis nigra L. was exposed to two levels of salinity (50 and 100 mM NaCl). To study the effect of Si addition on the concentrations of K+, Ca2+, Na+, and P, in the vegetative parts of plants, 5 mM of Si in the form of fertilizer (Siliplant) was added to the nutrient solutions. The experiment was conducted in semi-controlled conditions. The results showed that both salinity levels significantly increased the concentration of Na+ in leaves, stems, and roots, whereas the concentration of Ca2+ and K+ were decreased (up to 55% and 90% in the presence of 100 mM NaCl). The addition of Siliplant to the saline nutrient solution (50 mM NaCl) was efficient in decreasing Na+ accumulation in leaves and stem, while in roots more alleviating effect of Si addition was pronounced in the presence of 100 mM NaCl (Na+ concentration decreased by 50%). The presence of Si in 50 mM NaCl containing nutrient solution enhanced the accumulation of K+ in leaves and stems, while Ca2+ concentration was decreased, or the addition of Si to a nutrient solution had a negligible effect. Based on the results of the present study, the application of Si in the form of fertilizer was found more efficient in the presence of lower salt concentration (50 mM NaCl). Therefore, higher doses of the fertilizer should be considered and tested in case of higher NaCl concentrations in the substrate.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68372099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Characteristics of agricultural organic matter degrading bacterial isolates from different types of soil 不同类型土壤中农业有机质降解菌分离物的特性

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1936069n

D. B. Najvirt, S. Djuric, I. T. Hajnal-Jafari, R. Stamenov

引用次数: 0

Urinary tract infections and their importance 尿路感染及其重要性

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1936173s

G. Smieško, M. Mikov, Vera Gusman, M. Djanic

引用次数: 0

Mercury content and distribution in household dust and soil in the town of Sid 锡德镇家庭灰尘和土壤中的汞含量和分布

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1937033n

A. Nedić, M. Pucarević, Jordana Ninkov, N. Stojić, D. Milić

{"title":"Mercury content and distribution in household dust and soil in the town of Sid","authors":"A. Nedić, M. Pucarević, Jordana Ninkov, N. Stojić, D. Milić","doi":"10.2298/zmspn1937033n","DOIUrl":"https://doi.org/10.2298/zmspn1937033n","url":null,"abstract":"Mercury (Hg) and potentially toxic elements (PTEs) are components of household dust and are a risk for human health. The aim of this study was to determine the concentrations of Hg and PTEs in household dust in individual housing facilities in the town of Sid, Serbia and their correlation to the content of the elements found in the surrounding garden soil. Total of 64 samples of household dust were collected from 16 locations of individual housing facilities on 4 occasions. Samples of surrounding yard and garden soil were simultaneously collected. None of the 64 analysed soil samples exceeded the threshold limit (TL) prescribed by law for non-agricultural soil, which is 0.3 mg kg-1 DM. Content of Hg in household dust was much higher than in the surrounding soil and ranged from 0.005 to 1.566 mg kg-1 DM. The resulting values of PTEs (As, B, Co, Cr, Cu, Ni, Pb, and Zn) in household dust had a significantly higher range than in the soil. Contents of Hg, B, Cu, and Zn were much higher in household dust than in the soil. According to the results of correlations of the analysed elements in household dust and surrounding soil, and according to the analysed locations, direct effect of Hg and PTEs contents on the content of the same elements in household dust was not confirmed.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68371918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Influence of salinity on the growth and development of pansies (Viola x wittrockiana Gams.) 盐度对三色堇(Viola x wittrockiana Gams.)生长发育的影响

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1937057p

G. M. Pusic, M. Mladenovic, D. J. Cukanovic, D. Lakicevic, M. Pavlović

{"title":"Influence of salinity on the growth and development of pansies (Viola x wittrockiana Gams.)","authors":"G. M. Pusic, M. Mladenovic, D. J. Cukanovic, D. Lakicevic, M. Pavlović","doi":"10.2298/zmspn1937057p","DOIUrl":"https://doi.org/10.2298/zmspn1937057p","url":null,"abstract":"The purpose of this paper is to determinate the influence of salinity on the growth and development of pansies (Viola x wittrockiana Gams.). The objective of the present study was to examine the cultivation area selection and use of pansies related to the autumn and winter flowering aspects. A total of 40 pansy seedlings were included in the study and allocated to four groups of ten each. The experiment conducted four involved treatments: control (K), treatment with 3g/l NaCl (T1), treatment with 5g/l NaCl (T2), and treatment with 7 g/l NaCl (T3). Concentrated water was used for watering the seedlings observed during growth. Over the course of the eight-week experiment, the following quantitative and qualitative properties of the pansy seedlings were measured: height, number of leaves, number of flowers, diameter of flowers, length of leaves, width of leaves, as well as the vitality and decorativeness of the pansy seedlings. The results obtained show that pansies can tolerate increased amounts of salt (5 g/l and 7 g/l NaCl) with adverse effects on the growth, development, vitality and decorativeness of the plant.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68371836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Charophytes of Gornje Podunavlje ponds: Revitalization process aspect 果仁池绿藻:再生过程方面

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1936123t

Ivana Trbojević, D. Predojević, J. Šinžar-Sekulić, N. Nikolić, Ivana Jovanović, G. Subakov-Simić

{"title":"Charophytes of Gornje Podunavlje ponds: Revitalization process aspect","authors":"Ivana Trbojević, D. Predojević, J. Šinžar-Sekulić, N. Nikolić, Ivana Jovanović, G. Subakov-Simić","doi":"10.2298/zmspn1936123t","DOIUrl":"https://doi.org/10.2298/zmspn1936123t","url":null,"abstract":"Unique marshland area in the Danube floodplain - Special Nature Re?serve Gornje Podunavlje is considered to be one of the last aquatic flora and fauna refuges in the region. The revitalization projects in SNP Gornje Podunavlje started in 2011. They were conducted in order to protect biodiversity and to provide the natural ecosystem. The aim of this study was to investigate and compare the present diversity and distribution of the charophytes in five ponds of SNR Gornje Podunavlje, depending on phases of the revitalization process within the ponds. The researched area includes the following ponds: Semenjaca, Sarkanj, Siroki rit, Sakajtas and Ribolov. The Siroki rit pond was under the process of revitalization during the field surveys, Semenjaca and Sarkanj have already been revitalized, and Ribolov and Sakajtas were not exposed to the revitalization processes at all. The field surveys were conducted monthly, from May to September 2016. Water quality parameters were measured in situ and in laboratory. Ponds differed considerably when it comes to water chemistry; Semenjaca and Sarkanj were associated with highest nutrient concentrations, while Siroki rit was characterized by highest conductivity and water hardness. The highest diversity was found in Siroki rit pond, which was still in process of revitalization when the field survey was conducted. Charophytes were not detected within previously revitalized ponds (Semenjaca and Sarkanj). Eight species of charophytes were detected: Chara contraria, Chara globularis, Chara tenuispina, Chara vulgaris, Nitella confervacea, Nitella gracilis, Nitella syncarpa and Tolypella prolifera.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68371204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The influence of nitrogen and growth phase on the toxicity of the cyanobacterial strain Microcystis PCC 7806 氮和生长阶段对微囊藻pcc7806毒性的影响

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1936089d

Petar Davidović, Dajana J. Blagojević, O. Babić, J. Simeunović

{"title":"The influence of nitrogen and growth phase on the toxicity of the cyanobacterial strain Microcystis PCC 7806","authors":"Petar Davidović, Dajana J. Blagojević, O. Babić, J. Simeunović","doi":"10.2298/zmspn1936089d","DOIUrl":"https://doi.org/10.2298/zmspn1936089d","url":null,"abstract":"The worldwide occurrence of toxic cyanobacterial blooms and their numerous harmful effects have instigated extensive research into the environmental conditions promoting such events. Among the environmental factors which have been suggested to influence the increase in cyanobacterial proliferation, nutrient levels have been identified as one of the most prominent, affecting the growth and toxic metabolite production of cyano?bacteria in freshwater ecosystems. In the present study, toxicity of the cyanobacterial strain Microcystis PCC 7806 was evaluated after growth in media with three different nitrogen concentrations. The toxicity of intracellular extracts was analyzed during different growth phases (after 7, 21, and 35 days of cultivation) by observing mortality rates in the Artemia salina bioassay after 24h and 48h of exposure. The results have not shown significantly higher mortality levels between the test organisms exposed to extracts obtained from the cultures grown in the presence of higher nitrogen content (1.5 g/l and 0.8 g/l) and those grown in a nitrogen-free medium. A dose dependent effect, however, can be observed in most cases, with the most substantial changes observed in the high-dose groups. Also, the toxic effects and larval mortality increased during the exposure, suggesting the time-dependent toxicity. Extracts obtained after longer periods of cultivation (21 and 35 days) had stronger effects on the test organisms, which indicates that the toxicity of the tested cyanobacterial strain depends on the specific growth phase.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68371400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Antioxidant potential of ragweeds: Ambrosia artemisiifolia, A. trifida and Iva xanthifolia 豚草的抗氧化潜力:豚草、三叶草和苍耳草

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1936155k

Biljana Kiprovski, D. Malencic, J. Luković, P. Boža

{"title":"Antioxidant potential of ragweeds: Ambrosia artemisiifolia, A. trifida and Iva xanthifolia","authors":"Biljana Kiprovski, D. Malencic, J. Luković, P. Boža","doi":"10.2298/zmspn1936155k","DOIUrl":"https://doi.org/10.2298/zmspn1936155k","url":null,"abstract":"The purpose of this study was to analyze antioxidant systems among three invasive ragweed species, Ambrosia artemisiifolia L., A. trifida L. and Iva xanthifolia Nutt. Antioxidant capacity could be a possible marker of adaptation to variable environmen?tal conditions, since change in amount of antioxidants represents one of the first responses to various environmental stimuli. Among investigated ragweeds, I. xanthifolia leaves had more pronounced guaiacol peroxidase activity (87.5 and 62.5%) and reduced glutathione content (2.3 and 28.8%) than A. artemisiifolia and A. trifida, respectively. However, super?oxide dismutase activity was invariable in all investigated plants (234.1-247.5 U g-1 fresh weight). The highest content of total phenolics, tannins, flavonoids and proanthocyanidins were detected in A. trifida leaves (up to 3.7 - fold the amount of the others). According to antioxidant activity tests, investigated ragweed species could be presented in a scale: A. trifida > I. xanthifolia > A. artemisiifolia. Accumulation of non-enzymatic antioxidants and lower content of reduced glutathione point to different oxidative stress avoidance strategies of A. trifida when compared to A. artemisiifolia and I. xanthifolia within the same environ?mental conditions.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68371441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Campylobacter in food production chain in Vojvodina province (Serbia) 塞尔维亚伏伊伏丁那省食品生产链中的弯曲杆菌

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1936023p

J. Petrović, I. Stojanov, Vera Gusman, J. Lekić, Mirjana Štrbac, R. Ratajac, S. Medić

{"title":"Campylobacter in food production chain in Vojvodina province (Serbia)","authors":"J. Petrović, I. Stojanov, Vera Gusman, J. Lekić, Mirjana Štrbac, R. Ratajac, S. Medić","doi":"10.2298/zmspn1936023p","DOIUrl":"https://doi.org/10.2298/zmspn1936023p","url":null,"abstract":"Enteritis campylobacterialis has an increasing trend in Serbia. Human illness usually appears as sporadic case, most commonly in children with obvious seasonality. In registered outbreaks, incriminated food was most frequently poultry meat. Campylobacter is one of the most important food borne pathogens, commonly underreported, mostly because isolation of this bacteria requires specific equipment. Since 1 January 2019, monitoring of Campylobacter in poultry carcasses is mandatory when it comes to poultry production fa?cilities in Serbia. The aim of this paper was to analyze data from Autonomous Province of Vojvodina about the prevalence of Campylobacter spp. in poultry meat and risk for human illness. Our results indicate high prevalence of Campylobacter spp. in whole food chain: poultry farms, slaughterhouses, retail and, correspondingly, high risk for consumers in Vojvodina. Measures for risk reduction of disease incidence include better bio security measures on the farm level as a main source of pathogen but also introduction of Campylo?bacter diagnostic equipment in all human diagnostic and food control laboratories.","PeriodicalId":30148,"journal":{"name":"Zbornik Matice Srpske za Prirodne Nauke","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68370931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of low NaCl concentrations on the water relations of rapeseed 低NaCl浓度对油菜籽水分关系的影响

Zbornik Matice Srpske za Prirodne Nauke Pub Date : 2019-01-01 DOI: 10.2298/zmspn1937067p

M. Putnik-Delić, M. Daničić, Tanja Vujanov, R. Kastori

引用次数: 1