Plant Production Research Institute

Piešťany, Slovakia

Plant Production Research Institute

Piešťany, Slovakia
Time filter
Source Type

Partelova D.,University of Trnava | Kuglerova K.,University of Trnava | Konotop Y.,Taras Shevchenko National University | Hornik M.,University of Trnava | And 6 more authors.
Nova Biotechnologica et Chimica | Year: 2017

The current findings show that positron emission tomography (PET), primarily developed for medical diagnostic imaging, can be applied in plant studies to analyze the transport and allocation of wide range of compounds labelled with positronemitting radioisotopes. This work is focused on PET analysis of the uptake and transport of 2-deoxy-2-fluoro[18F]-D-glucose (2-[18F]FDG), as a model of photoassimilates, in tissues of giant reed (Arundo donax L. var. versicolor) as a potential energy crop. The absorption of 2-[18F]FDG and its subsequent transport in plant tissues were evaluated in both acropetal and basipetal direction as well. Visualization and quantification of the uptake and transport of 2-[18F]FDG in plants immersed with the root system into a 2-[18F]FDG solution revealed a significant accumulation of 18F radioactivity in the roots. The transport rate in plants was increased in the order of plant exposure through: stem > mechanically damaged root system > intact root system. PET analysis in basipetal direction, when the plant was immersed into the 2-[18F]FDG solution with the cut area of the leaf of whole plant, showed minimal translocation of 2-[18F]FDG into the other plant parts. The PET results were verified by measuring the accumulated radioactivity of 18F by direct gamma-spectrometry. © 2017 University of SS. Cyril and Methodius in Trnava.

Pastircakova K.,Slovak Academy of Sciences | Pastircak M.,Plant Production Research Institute | Adamcikova K.,Slovak Academy of Sciences | Bouznad Z.,Algeria National School of Agronomy | And 4 more authors.
Cryptogamie, Mycologie | Year: 2014

A global survey of the spread of the Platanus powdery mildew, Erysiphe platani , has been carried out. E. platani teleomorph formation was recorded in countries where the fungus anamorph has been present for several years. The first findings of chasmothecia were recorded in Austria, Czech Republic, France, Italy and Slovakia. New records of E. platani (including the teleomorph) were found in Belgium, Croatia and Denmark. The occurrence of this fungus in Sweden and in two countries of North Africa (Algeria and Morocco) was confirmed. Descriptions of morphological features, illustrations, and worldwide distribution of E. platani are provided. Herbarium collections of powdery mildews on Platanus spp. were re-examined and revised. The occurrence of Phyllactinia guttata on Platanus is discussed and questioned. © 2014 Adac. Tous droits réservés.

Dureshova Z.,University of Trnava | Sunovska A.,University of Trnava | Hornik M.,University of Trnava | Pipiska M.,University of Trnava | And 3 more authors.
Chemical Papers | Year: 2014

The main aim of the presented work was to design and characterize the rhizofiltration system comprised of giant reed plants (Arundo donax L.), as species with phytoremediation potential, for the removal of cadmium as a toxic metal and zinc as an important microelement from model solutions spiked with radionuclides 109Cd and 65Zn. The possibility of effective cadmium and zinc rhizofiltration by the root system of giant reed plants under continuous flow conditions to achieve complete decontamination was confirmed. The highest 109Cd and 65Zn specific radioactivity (Bq g-1; dry mass) was found in case of plants located near the input of the solution into the system, whereby the radioactivity in the plants decreased in the direction of the solution flow within the system. On the other hand, gradual increasing of the concentration ratio [Cd]shoot: [Cd]root within this horizontal plants location was observed. Individual experiments showed that the efficiency of cadmium rhizofiltration decreased in the order of model solutions: synthetic wastewater (χ = 505 μS cm-1), deionized water (χ = 29.6 μS cm-1), 100 % Hoagland medium (χ = 1675 μS cm-1). The same results were also found in case of zinc rhizofiltration. For the description of cadmium and zinc rhizofiltration processes, the kinetic mathematical models widely applied for sorption processes under continuous flow conditions were successfully used. © 2014 Institute of Chemistry, Slovak Academy of Sciences.

Sramkova Z.,Slovak University of Technology in Bratislava | Gregova E.,Plant Production Research Institute | Slikova S.,Plant Production Research Institute | Sturdik E.,University of Trnava
Plant Genetic Resources: Characterisation and Utilisation | Year: 2011

The objective of our study was to determine the composition of high-molecular weight-glutenin subunits (HMW-GS) in 120 cultivars of common wheat (Triticum aestivum L.). Fourteen alleles and 34 allelic compositions were detected using sodium dodecyl sulphate-polyacrylamide gel electrophoresis. The most frequent HMW-GS alleles at the Glu-A1, Glu-B1 and Glu-D1 loci were null (57.1%), 7+9 (43.3%) and 5+10 (61.9%), respectively. However, low-frequency HMW-GS alleles were also observed, such as 13+16, 20, 21, 7 and 18, encoded by the Glu-B1 locus, and 4+12, encoded by the Glu-D1 locus. The wheat-rye 1BL.1RS translocation was identified in 25 cultivars, using acid polyacrylamide gel electrophoresis. The Glu-score varied greatly, and some lines reached the maximum value of 10. © 2011 NIAB.

Kamenikova M.,Comenius University | Fialova S.,Comenius University | azky A.,Comenius University | Cicova I.,Plant Production Research Institute
Acta Facultatis Pharmaceuticae Universitatis Comenianae | Year: 2015

The content of phenolic compounds (total phenolic compounds, tannins, flavonoids and anthocyanidins) of three species of thyme (Thymus pulegioides, Thymus pannonicus, Thymus praecox) of different origin (Bohemian-Moravian highlands, Křivoklat and Považsky Inovec) was determined using spectrophotometric methods of European Pharmacopoeia 8th edition. Furthermore, the determination of the content of essential oil and analysis of its constituents was realised. The amount of total phenolics was determined by a spectrophotometric method using the Folin-Ciocalteu reagent. Their content ranged from 3.87 to 8.86%. The content of tannins was established on a preliminary determination of the total phenolics, followed by adsorption of tannins on hide powder. The amount of tannins in our samples varied from 1.96 to 5.65%. The content of total flavonoids was determined by a spectrophotometric method using aluminium chloride. Quantitative analysis of flavonoids has shown that content in our samples ranged from 0.59 to 1.52% expressed as luteolin-7-O-glucoside (λ = 392 nm) and from 0.41 to 1.12% expressed as rutin (λ = 420 nm). Anthocyanins represent a small amount of total polyphenol content in Thymus species. In our samples, the content of anthocyanins expressed as cyanidin-3-O-glucoside varied from 0.02 to 0.1%. The determination of essential oil was realised by method of European Pharmacopoeia 8th edition. Its contents in our samples ranged from 0.2 to 0.75%. Gas chromatography-mass spectrometry was used for essential oil analysis. According to the presence of main monoterpene in Thymus essential oil, we can distinguish three chemotypes: thymol, carvacrol and linalool. Due to variations of chemical constituents of thyme essential oil, it was possible to observe a relationship between occurrence of certain chemotype and origin of sample. Differences in content of flavonoids have not shown a significant relationship to locality of origin. © by M. Kameníková 2015.

Cibulkova Z.,Slovak University of Technology in Bratislava | Certik M.,Slovak University of Technology in Bratislava | Cerna A.,Slovak University of Technology in Bratislava | Lichvarova M.,Plant Production Research Institute | And 2 more authors.
Journal of Thermal Analysis and Calorimetry | Year: 2015

Abstract Poppy seeds are widely used in the food industry, commonly for decoration and filling bakery products. They are rich in edible oil and therefore easily undergo oxidation reactions, which lead to the reduction in the shelf life. The goal of this study was to apply the previously developed methodology for testing the stability of 15 poppy seed cultivars using non-isothermal DSC and to select the most stable cultivars from two localities. For the treatment of the experimental data, a method based on non-Arrhenian temperature functions has been applied. In order to compare the stability of the poppy seed cultivars, the lengths of induction periods have been calculated. The results show that the stability of the samples is strongly influenced by the temperature and the provenance. The most stable cultivars from locality Malý Šariš were Bergam at 140 C and Gerlach at 25 C. In the case of the second locality (Víglaš-Pstruša), the highest stability has been documented for the cultivar Malsar at both temperatures. © Akadémiai Kiadó, Budapest, Hungary 2015.

Klempova T.,Slovak University of Technology in Bratislava | Janstova J.,Slovak University of Technology in Bratislava | Gavurnikova S.,Plant Production Research Institute | Havrlentova M.,Plant Production Research Institute | Certik M.,Slovak University of Technology in Bratislava
Materials Science Forum | Year: 2016

Cereals serve as major food supply for human population. The cereals are rich source of carbohydrates and some proteins, but they are limited in various biologically active compounds such as polyunsaturated fatty acids, carotenoid pigments, coenzyme Q10, etc. Therefore valueadded cereal-derived biomaterials have been prepared by the fungal solid state fermentations that could be attractive in food/feed industry. Application of fermented biomaterials into bakery products does not only enrich the final products with new compound (PUFA, ergosterol, etc), but very significantly change the rheological and nutritional and properties of dough and breads such as dough development time and stability, content of starch, glucans, dietary fibre, etc. Sensorial quality of these new products is acceptable for customers. Thus, biotechnologically prepared PUFAenriched cereals may open novel prospects for the market of functional cereal foods. © 2016 Trans Tech Publications, Switzerland.

Hrckova K.,Plant Production Research Institute | Pollak S.,Grassland and Mountain Agriculture Research Institute | Britanak N.,Grassland and Mountain Agriculture Research Institute | Hasana R.,Plant Production Research Institute
Journal of Central European Agriculture | Year: 2016

The aim of the present work was to assess and compare energy inputs and outputs of various crop managements in 2011–2012. Two main crops on arable land and three permanent grasslands were investigated. Silage maize (Zea mays L.) and winter wheat (Triticum aestivum L.) were grown on lowland, whilst two semi-natural grasslands and grassland infested by tufted hair-grass (Deschampsia caespitose (L.) P. Beauv) were located in mountainous regions of Slovakia. In these crops and grasslands the dry matter yield was measured and subsequently the supplementary energy, energy gain and unifying energy value – tonne of oil equivalent (TOE) – were calculated. Silage maize with 233.37 GJ*ha-1 has provided the highest energy gain. In the group of grasslands, grassland infested by tufted hair-grass has offered the highest energy gain (59.77 GJ*ha-1). And this grassland had the lowest requirement on the supplementary energy (3.66 GJ*ha-1), contrary to silage maize with highest one (12.37 GJ*ha-1). The total energy potential of the crop biomasses was confronted with energy consumption in Slovakia. Winter wheat has the biggest energy potential, but it could cover only 19.6% and 11.3% total consumption of electricity or natural gas, respectively. Large area of permanent grasslands and their spatial location make them an important energy reservoir for bioenergy production. But, it is not possible to replace all consumed fossil fuels by bioenergy from these tested renewable energy sources. © 2016, University of Zagreb - Faculty of Agriculture. All Right Reserved.

Pastircakova K.,Slovak Academy of Sciences | Pastircak M.,Plant Production Research Institute
Polish Botanical Journal | Year: 2010

The paper reports two fungal species of Pleomassariaceae new for the Slovak mycobiota: Pleomassaria siparia (Berk. & Broome) Sacc. and Splanchnonema argus (Berk. & Broome) Kuntze, found on dead twigs of Betula pendula Roth. The morphology of the fungi and their coelomycetous anamorphs is described, with photographic documentation.

Pastircak M.,Plant Production Research Institute | Fejer J.,University of Prešov
Acta Horticulturae | Year: 2014

A survey of fungal populations in discolored tissues of opium poppy (Papaver somniferum) plants was conducted throughout Slovakia in 2007-2009. More than 20 fungal taxa were isolated from opium poppy stems, leaves, capsules and seeds periodically sampled during three growing seasons. Incidence of fungi varied annually due to, in part, differences in rainfall. Symptoms of stem rot, leaf and capsule spot were observed during field surveys in commercial opium poppy. Fungal assemblages present in necrotic tissues of P. somniferum were determined at three sites in Slovakia. Fungi were identified by examination of fruiting bodies or by isolation. Of the different plant parts, the highest number of fungi were isolated from stems followed by leaves and capsules. In diseased stem tissues Crivellia papaveracea, Brachycladium penicillatum, Fusarium sp., Colletotrichum sp., and Alternaria sp. were the most common. In diseased leaf tissues Peronospora arborescens, Erysiphe cruciferarum, Botrytis cinerea, and Alternaria sp. were the most common. The ability of fungi parasitic on P. somniferum capsules was studied, with the aim of determining total mycoflora. Dominant fungi on capsule lesions were C. papaveracea, B. cinerea, Fusarium sp., and Alternaria brassicae var. somniferi. A total number of 15 fungal species belonging to 12 genera were isolated from seeds. Based on the culture phenotype, these strains were identified as Alternaria sp., Arthobotrys sp., Aspergillus sp., Botrytis sp., Epicoccum sp., Fusarium sp. (F. equiseti, F. poae), Mucor sp., Penicillium sp., Phoma sp., Rhizoctonia sp., Rhizopus sp., and Stemphylium sp. Among them, Brachycladium papaveris and Alternaria alternata had higher isolating rate than others.

Loading Plant Production Research Institute collaborators
Loading Plant Production Research Institute collaborators