Acta Biologica Slovenica最新文献_第10页

Distribution of epilithic diatoms in the Savinja River flowing through an urban landscap 流经城市景观的萨维加河中鳞硅藻的分布

Acta Biologica Slovenica Pub Date : 2016-12-01 DOI: 10.14720/abs.59.2.15870

Igor Železnik, Doroteja Čatorič, Mihael J. Toman

{"title":"Distribution of epilithic diatoms in the Savinja River flowing through an urban landscap","authors":"Igor Železnik, Doroteja Čatorič, Mihael J. Toman","doi":"10.14720/abs.59.2.15870","DOIUrl":"https://doi.org/10.14720/abs.59.2.15870","url":null,"abstract":"The catchment area in urban and agricultural landscapes is greatly influenced by human activities that reflect also in physical and chemical characteristics of water as well as in species diversity in water bodies. The diversity and the species composition of epilithic diatom communities in the Savinja River, as well as basic environmental parameters were analysed. Sampling sites were selected in reaches subjected to different influences from the catchment area and with different physical and chemical characteristics. Samples were collected at the site where the Savinja River enters the urban area of the town Celje, at the end of urban landscape and downstream of the Celje waste water treatment plant outflow. The most common and dominant diatom species in the periphyton community was Achnanthes biasolettiana. Other common diatom taxa that were found in all samples and at least in one sample exceeded relative abundance of 10% were Nitzschia fonticola, Amphora pediculus and Nitzschia dissipata. The results of the redundancy analyses (RDA) revealed that the variance of the epilithic diatom community was explained by O2 saturation(35%) and saprobic index (33% of TVE). Diatom species richness was positively correlated with O2 saturation. Shannon-Wienerdiversity index was positively correlated with saprobic index values based on all algae and trophic index calculated on the base of diatoms indicating a relatively low organic matter and nutrient input into the river system. The results showed that no significant changes in epilithic diatom species composition and no negative impacts on diversity of epilithic diatom community in the Savinja River were detected on its flow through the urban landscape. Moreover, changes between the seasons were more evident than changes between sampling sites, confirming the importance of sampling date for monitoring.","PeriodicalId":121848,"journal":{"name":"Acta Biologica Slovenica","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133527302","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

Fluorescent markers in microscopy: photophysical characteristics and applications in cell biology 显微荧光标记物:光物理特性及其在细胞生物学中的应用

Acta Biologica Slovenica Pub Date : 2016-12-01 DOI: 10.14720/abs.59.2.15855

Urban Bogataj, J. Štrus, N. Žnidaršič, M. Kreft

引用次数: 0

16. mednarodni simpozij mikrobne ekologije - ISME 16

Acta Biologica Slovenica Pub Date : 2016-12-01 DOI: 10.14720/abs.59.2.15875

Janez Mulec

引用次数: 0

Germination rate of stinkwort (Dittrichia graveolens) and false yellowhead (D. viscosa) in relation to salinity 臭麦草和假黄头草发芽率与盐度的关系

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15694

M. Grašič, S. Anžlovar, S. Strgulc Krajšek

引用次数: 6

The effects of leaf extracts of crack willow (Salix fragilis) on the growth of Japanese knotweed (Fallopia japonica) 裂柳叶提取物对日本结缕草生长的影响

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15695

J. Dolenc Koce

{"title":"The effects of leaf extracts of crack willow (Salix fragilis) on the growth of Japanese knotweed (Fallopia japonica)","authors":"J. Dolenc Koce","doi":"10.14720/abs.59.1.15695","DOIUrl":"https://doi.org/10.14720/abs.59.1.15695","url":null,"abstract":"Japanese knotweed (Fallopia japonica) is one of the most invasive of species in Europe, and can substantially reduce local native biodiversity. In the present study, the allelopathic potential of crack willow (Salix fragilis) on growth of Japanese knotweed was investigated.Aqueous extracts of 0.1% and 1% (w/v) were prepared from liophilised willow leaves and used for watering of young knotweed plants. Their growth was monitored for 196 days. Shoot height and leaf number were not affected but the mass of leaves and especially roots was reduced (up to 32%). At the end of experiment, biochemical characteristics related to physiological state (photochemical efficiency of PSII, protein content, enzyme activity of guaiacol peroxidase, lipid peroxidation) were measured. Mostly, they were at control levels, but the activity of guaiacol peroxidase and lipid peroxidation in roots increased. The extracts of crack willow showed moderate inhibitory effect on roots of treated knotweeds while the growth of shoots was unaffected. Given the root reduction described here, further studies with willow extracts and field studies with crack willow and Japanese knotweed plants would be reasonable.","PeriodicalId":121848,"journal":{"name":"Acta Biologica Slovenica","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129964335","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

Control of alpine dock (Rumex alpinus) by non-chemical methods 用非化学方法防治高山斑鸠病

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15696

U. Šilc, M. Gregori

引用次数: 4

Gold nanoparticles do not induce adverse effects on terrestrial isopods Porcellio scaber after 14-day exposure 金纳米颗粒在接触14天后不会对陆生等足动物产生不良影响

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15697

Pavlína Škarkováa, Tea Romih, M. Kos, Sara Novak, Veno Kononenko, A. Jemec, M. Vávrová, D. Drobne

{"title":"Gold nanoparticles do not induce adverse effects on terrestrial isopods Porcellio scaber after 14-day exposure","authors":"Pavlína Škarkováa, Tea Romih, M. Kos, Sara Novak, Veno Kononenko, A. Jemec, M. Vávrová, D. Drobne","doi":"10.14720/abs.59.1.15697","DOIUrl":"https://doi.org/10.14720/abs.59.1.15697","url":null,"abstract":"Despite the anticipated environmental release of anthropogenic gold nanoparticles (AuNPs), there is currently not enough data on their potential impact on terrestrial environment. In the current study, we investigated the effects of considerably low concentrations of AuNPs on terrestrial isopods (Porcellio scaber) after 14 days of exposure. The effects on mortality, weight change, feeding rate, avoidance/preference feeding behavior, and cell membrane destabilization of digestive gland cells were followed. In parallel, the accumulation of Au in the digestive glands was measured. Our results show that none of the tested parameters was affected in isopods under given exposure doses (10 and 60 µg Au/g dry leaf) and exposure duration. No Au was assimilated in the digestive glands. Also, the same doses of the reference chemical, AuCl3, showed no effect. We conclude that these concentrations of AuNPs are safe for terrestrial isopods. We encourage reporting the results showing no adverse effects of nanoparticles to balance the prevailing publication of their adverse effects. This will help to build a realistic public perception of the environmental risk of nanomaterials.","PeriodicalId":121848,"journal":{"name":"Acta Biologica Slovenica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130625921","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

Effect of short exposure to electro-oxidation treatment on Planktothrix rubescens 短时间暴露于电氧化处理对冬绵浮游蓟马的影响

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15702

Maša Čater, T. Rozina, Maja Zupančič Justin

引用次数: 0

No chronic effects on biochemical biomarkers, feeding and survival of carnolian honeybees (Apis mellifera carnica) after exposure to nanosized carbon black and titanium dioxide 纳米炭黑和二氧化钛对甘油三酯蜜蜂(Apis mellifera carnica)的生化生物标志物、摄食和存活无慢性影响

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15698

A. Jemec, T. Milivojević, D. Drobne, K. Sepčič, G. Glavan

{"title":"No chronic effects on biochemical biomarkers, feeding and survival of carnolian honeybees (Apis mellifera carnica) after exposure to nanosized carbon black and titanium dioxide","authors":"A. Jemec, T. Milivojević, D. Drobne, K. Sepčič, G. Glavan","doi":"10.14720/abs.59.1.15698","DOIUrl":"https://doi.org/10.14720/abs.59.1.15698","url":null,"abstract":"Honeybees (Apis mellifera) are important pollinators threatened by environmental pollution, plan protection products and other potential contaminants. Due to an extensive predicted use of engineered nanomaterials (NMs) in agriculture the impact on honeybees should be investigated. We studied the 10-days chronic dietary effect of carbon black (CB) and titanium dioxide (TiO2) NMs on the antioxidant activities, cholinergic function, feeding behaviour and survival of honeybees. Exposure of honeybees Apis mellifera carnica to TiO2 and CB NMs (1 mg ml-1) did not affect the feeding and survival. No alteration of catalase, acetylcholinesterase and glutathione S-transferase enzymatic activity was noticed in the brain of honeybees, indicating that TiO2 and CB NMs at the tested exposure dose had no adverse effects on honeybees. Currently predicted environmental concentrations for TiO2 and CB NMs are significantly lower than the concentration tested in the current study. Based on our findings we conclude that the potential use of TiO2 and CB NMs in agriculture is currently safe for honeybees at the tested concentration level and presents potential advantages compared to other NMs with known toxic potential.","PeriodicalId":121848,"journal":{"name":"Acta Biologica Slovenica","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126389195","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: 5

Nekatere anatomske značilnosti skeleta sive čaplje, Ardea cinerea

Acta Biologica Slovenica Pub Date : 2016-07-01 DOI: 10.14720/abs.59.1.15699

Z. Golob, Srdan Bavdek, Tina Zajc, Franc Janžekovič, Tina Klenovšek

{"title":"Nekatere anatomske značilnosti skeleta sive čaplje, Ardea cinerea","authors":"Z. Golob, Srdan Bavdek, Tina Zajc, Franc Janžekovič, Tina Klenovšek","doi":"10.14720/abs.59.1.15699","DOIUrl":"https://doi.org/10.14720/abs.59.1.15699","url":null,"abstract":"Na štirih skeletih sive čaplje (Ardea cinerea) smo proučili morfološke lastnosti kosti in skeletnih sklopov, predvsem nekatere segmente lobanje, hrbtenice, plečnega obroča, prsnice in medeničnega obroča. Za lobanjo je značilna izrazita kraniofacialna upogibna cona (zonaflexoria craniofacialis), dolga čelnica (os frontale) z izrazito vzdolžno depresijo (depressio frontalis), dolg postorbitalni lok (arcus postor- bitalis), obsežna senčnična jama (fossa temporalis) in dodatna plitka podsenčnična jama (fossa subtemporalis). Parasfenoidni ročaj (rostrumparasphenoidale) je izrazit, krilatki (ossa pterygoidea) pa močni in premi. Pri vratnih vretencih je značilna močnejša kalcifikacija šestega vretencain njegova toga povezanost s petim. V področju notarija (notarium) vretenca niso zraščena: med zadnjim vratnim in prvim prsnim vretencem je jasen sklep. Tudi prva tri prsna vretenca niso medsebojno zraščena, pač pa tesneje povezana v ventralnem delu. Četrto prsno vretence je izrazito pregibno (prosto), kot pri drugih ptičih. Peto prsno vretence je pridruženo sinsakrumu. Ključnici sta koščeno zraščeni v vilice (furcula), njuna apofiza pa tvori sinostozo z vrhom prsničnega gredlja (apex carinae). Krokarnici se končujeta na prsnici vsaka v svojem sklepnem žlebu (sulcus articularis coracoideus), in sicer tako, da je sternalni konec desne krokarnice položen nekoliko preko leve. Na ročaju prsnice (manubriumsterni) manjka notranji trn (spina interna), na njegovem mestu je kratek žleb. Osnovni morfološki opis dopolnjujejo slike kosti oz. skeleta in dva rentgenska posnetka na živi živali, predstavljeni so tudi rezultati meritev posameznih kosti.","PeriodicalId":121848,"journal":{"name":"Acta Biologica Slovenica","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129689314","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