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Wyświetlanie 1-13 z 13
Tytuł:
Wpływ toksycznych jonów metali na rozwój topoli (Populus tremula L. x Populus alba L.) w kulturach in vitro
Effect of toxic metalions on the development of poplar (Populus tremula L. x Populus alba L.) cultured in vitro
Autorzy:
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/807163.pdf
Data publikacji:
2002
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2002, 488, 2
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of aluminium and copper on the development of birch (Betula pendula Roth.) cultured in vitro and in vivo
Autorzy:
Bojarczuk, K
Szczygiel, K.
Powiązania:
https://bibliotekanauki.pl/articles/41028.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
environment pollution
industrial pollution
tree
birch
Betula pendula
plant development
soil pollution
toxic metal
aluminium
copper
in vivo culture
in vitro culture
Opis:
Adventitious bud cultures were established by using buds of a selected birch clone (Betula pendula Roth.) resistant to industrial pollution. The Murashige and Skoog medium (1/2 and 1/4 MS) was used for multiplication and rooting of shoots. Aluminium was added to the medium, in the form of aluminium sulphate (50–100 mg Al dm–3), and birch culture was continued in vitro for over 12 months. The shoots developed on media with aluminium (Al+) proved to be more tolerant to aluminium and copper (added to the medium as nitrates or sulphates, at a concentration of 0.05–2.0 mM) during multiplication and rooting than those developed on media without aluminium (Al–). Rooted birch microcuttings obtained from cultures on media with aluminium (Al+) grew better in the soil from an unpolluted area (Zwierzyniec, Z) and from an area polluted by a phosphate fertilise factory (Luboń, L) than those from media without aluminium (Al–).
Źródło:
Dendrobiology; 2004, 51; 3-8
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of high concentration of selected calcium salts on development of microcuttings of rhododendron R.‘Catawbiense Grandiflorum’ in in vitro cultures
Autorzy:
Giel, P
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/41103.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
magnesium
rhododendron
sodium
acid soil
pH
in vitro
microcutting
calcium salt
high concentration
Ericaceae
Rhododendron
Opis:
High content of calcium compounds in soil limits cultivation possibilities of the majority of cultivars of rhododendron. In the research presented an attempt was made to determine the influence of a high level of calcium salts CaCl2, CaSO4, Ca(NO3)2 and CaCO3, pH and an increased level of auxins in a medium, on the development of microcuttings of R. ‘Catawbiense Grandiflorum'. On the basis of the results of the research it is justifiable to state that it was the anions of some salts used that had an adverse effect on the development of rhododendron cultures, not calcium cations. Significant differences were noted in the uptake of calcium, magnesium and sodium ions by the microcuttings depending on salts used in the media. The pH value of the medium higher than optimum significantly affected the degree of chlorosis of the microcuttings analyzed. Supplementing the media with additional auxin - IBA was stimulating for the plant growth especially in the medium containing CaCO3.
Źródło:
Dendrobiology; 2002, 48
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of high concentrations of calcium salts in the substrate and its pH on the growth of selected rhododendron cultivars
Autorzy:
Giel, P.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/59116.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
high concentration
calcium salt concentration
calcium salt
substrate
pH
plant growth
rhododendron
plant cultivar
root development
shoot development
carbohydrate
phenol
acid phosphatase
mineral
non-specific dehydrogenase
Opis:
For proper growth and development, rhododendrons need acidic soils, whereas calcium carbonate (CaCO3) in the substrate markedly limits their growth. In this study, we analysed the reactions of rhododendrons to high concentrations of calcium salts and pH in the substrate. We used 4-month-old seedlings of Rhododendron ‘Cunningham’s White’ and 1.5-year-old seedlings and rooted cuttings of R. ‘Cunningham’s White’ and R. ‘Catawbiense Grandiflorum’. Their reactions depended mostly on calcium salt type added to the substrate (sulphate or carbonate). An increase in concentrations of phenolic compounds was detected mostly in roots of the plants grown in a substrate with a high calcium carbonate content. Addition of calcium salts to the substrate caused a significant rise in total nonstructural carbohydrates in leaves and roots of the studied plants. As compared to the control, an increase in substrate pH in the variant with calcium carbonate limited the activity of acid phosphatase, while lowering of substrate pH in the variant with calcium sulphate, significantly increased its activity. Along with the rise in substrate pH, a remarkable increase was observed in the activity of nonspecific dehydrogenase (DHA) in the substrate with CaCO3, as compared to the control. Unfavourable soil conditions (high calcium content and alkaline pH) caused a decrease in assimilation of minerals by the studied plants (mostly phosphorus and manganese). Our results show that the major factor limiting rhododendron growth is an increase in substrate pH, rather than an increase in the concentration of calcium ions.
Źródło:
Acta Societatis Botanicorum Poloniae; 2011, 80, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tree somatic embryogenesis in science and forestry
Autorzy:
Hazubska-Przybyl, T.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/41255.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
tree
somatic embryogenesis
embryogenesis
science
forestry
in vitro culture
seedling
somatic seedling
forest management
Opis:
Somatic embryogenesis is the latest, and potentially the most efficient, method for the vegetative micropropagation of plants. Over the past three decades, numerous laboratory studies have investigated somatic embryogenesis of forest trees, yielding positive results for a number of economically important tree species. The first test trials were run and plantations were planted with interior spruce in the 90s by CellFor Inc. (Canada). However, at the beginning of the XXI century, the program to produce spruce and Douglas fir somatic seedlings was stopped for economic reasons. Thus, currently no operational program is ongoing except on a small scale in New Brunswick. In order to integrate somatic embryogenesis technology into operational reforestation programs, the production costs of forest tree somatic seedlings needs to be reduced, and the awareness of foresters and forest landowners that the material obtained through somatic embryogenesis is valuable needs to be increased. This awareness would enable implementation of this technology on a large scale for production and forest management throughout Europe including Poland. In this review, the importance of somatic embryogenesis in scientific research and in global and European forestry is presented. Our main aims are to provide basic information on the challenges in researching somatic embryogenesis of forest trees and to raise interest in this tree propagation technique in both scientists and foresters.
Źródło:
Dendrobiology; 2016, 76
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Somatic embryogenesis of selected spruce species [Picea abies, P. omorika, P. pungens 'Glauca' and P. breweriana]
Autorzy:
Hazubska-Przybyl, T
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/56682.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
somatic embryogenesis
spruce species
Picea abies
Picea omorika
Picea pungens
Picea breweriana
plant tissue
growth regulator
somatic embryo
nursery production
Opis:
Somatic embryogenesis was studied in four spruce species (Picea abies, P. omorika, P. pungens 'Glauca' and P. brewenana) to determine if this method can be used for in vitro propagation of coniferous trees. The highest frequency of initiation of embryogenic tissue was obtained when mature zygotic embryos were used as explants. It ranged then from 10.8% (P. brewenana) to 23.75% (P. omorika and P. pungens 'Glauca'). The frequency of embryogenic tissue initiation was strongly affected by medium composition, i.e. addition of appropriate auxins (2,4-D, NAA, Picloram) and sucrose concentration (10-20 g-1"1). A lower frequency was obtained in Picea omorika (10%) when megagametophytes (endosperms with immature zygotic embryos) were used as explants. No emryogenic tissue was produced from hypocotyls, cotyledons and needles. A satisfactory frequency was achieved with the use of somatic embryos of Picea abies (30%). The proliferation of embryogenic cell lines of spruces was affected by medium type. The experiments resulted in production of somatic plantlets of P. abies and P. omorika. This enables the application of this method of spruce micropropagation for genetic and breeding research or for nursery production.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 189-199
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure of embryogenic tissues and accumulation of storage materials in somatic embryos of Picea abies and P. omorika
Autorzy:
Hazubska-Przybyl, T
Bojarczuk, K.
Guzicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/41109.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Picea abies
Picea omorica
tissue
spruce
development
starch grain
lipid body
embryogenic tissue
storage material
somatic embryo
plant tissue
Opis:
Microscopic analysis of embryogenic tissues of Picea abies and P. omorika showed that the tissues differed in proportions of various types of proembryogenic masses, and in presence/absence of early somatic embryos, which suggests that they differed in embryogenic potential. On the basis of this study, embryogenic competence of tissues can be assessed at early stages of somatic embryogenesis, and thus the most efficient lines can be selected (one Picea abies and two P. omorika). In the course of development of somatic embryos embryogenic tissue was placed on a medium with abscisic acid (ABA), which affects an increase in osmotic pressure at the stage of maturation of somatic embryos and finally on the regeneration of cotyledonary embryos. In this stage of embryos development, storage materials were accumulated, which are used in specific metabolic processes during embryo development.
Źródło:
Dendrobiology; 2008, 60; 19-28
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro responses of various explants of Fagus sylvatica
Autorzy:
Hazubska-Przybyl, T.
Chmielarz, P.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/41768.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
European beech
plant response
explant
Fagus sylvatica
micropropagation
culture condition
tissue culture
in vitro culture
Opis:
There are limited published data on in vitro reproduction of Fagus sylvatica L. (European beech). This study was aimed to determine the efficiency of induction of somatic embryogenesis or organogenesis of beech from different types of explants in various culture conditions. Explants derived from immature, fresh seeds (collected in 2011 and 2013) and from mature seeds, stored at –10ºC and some stratified at 3ºC, were placed on induction media with various combinations of plant growth regulators: zeatin, 2,4-dichlorophenoxyacetic acid (2,4-D) and/or benzyladenine (BA). Initial cultures were kept in darkness or weak light (white fluorescent or blue-red LED). Limited success has been achieved in initiation of somatic embryogenesis. We obtained friable, yellow-white callus with characteristic PEM-like structures (cPEM-ls, from embryonic axes or fragments of immature embryos with embryonic axes), which may be an early developmental stage of embryogenic callus of Fagus sylvatica. This type of callus regenerated from explants incubated in darkness, mainly on WPM medium with addition of 6.8 μM zeatin or WPM and MSG media with 9.1 μM 2,4-D and 2.2 μM BA. The highest frequency of regeneration of callus with cPEM-ls was 5%. Instead, we succeeded to induce organogenesis from both immature and mature zygotic embryos and from embryonic axes. The best results were obtained for mature zygotic embryos incubated on ½WPM medium (half-strength Woody Plant Medium) with 9.1 μM 2,4-D and 2.2 μM BA. Adventitious buds were regenerated on up to 15% of the explants. The induced buds developed into shoots, enabling us to establish tissue cultures of beech. Induction of organogenesis from the tested explants was more efficient than induction of somatic embryogenesis.
Źródło:
Dendrobiology; 2015, 73
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Somatic embryogenesis of selected coniferous tree species of the genera Picea, Abies and Larix
Autorzy:
Szczygiel, K
Hazubska-Przybyl, T.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/57833.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Abies
micropropagation
ex vitro
development
larch
tree species
spruce
in vitro
botany
Picea
medium
embryogenesis
Larix
fir
hormone
Opis:
Experiments on somatic embryogenesis in selected spruce, fir and larch species were performed to determine if this method of micropropagation enables production of quality seedlings for forest nurseries. High frequencies of embryogenic callus in spruce (23-31%) and fir (29%) were achieved when mature zygotic embryos were used as explants, while in larches (36%) only when megagametophytes (endosperms with immature embryos) were used. The possibility of somatic embryogenesis initiation also from somatic embryos (resulting in secondary and third generation of embryogenic callus) indicate high efficiency of this method of micropropagation. The best results at all stages of somatic embryogenesis (good proliferation of embryogenic callus, high rate of embryo regeneration and their survival) were obtained for Norway spruce, European larch and some hybrid larches.
Źródło:
Acta Societatis Botanicorum Poloniae; 2007, 76, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential possibilities of the induction of European beech (Fagus sylvatica ) tissue cultures from various types of explants
Autorzy:
Hazubska-Przybyl, T.
Chmielarz, P.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/951305.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Fagus sylvatica
European beech
tissue culture
reproduction
vegetative propagation
somatic embryogenesis
organogenesis
2,4-dichlorophenoxyacetic acid
benzyladenine
zeatin
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of PEG 4000 on maturation, germination and conversion frequency of Picea abies and P. omorika somatic embryos
Autorzy:
Wawrzyniak, M.
Hazubska-Przybyl, T.
Obarska, A.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/951243.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polyethylene glycol
somatic embryogenesis
somatic seedling
maturation
germination
coniferous species
Picea abies
Picea omorika
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth regulators and guaiacol peroxidase activity during the induction phase of somatic embryogenesis in Picea species
Autorzy:
Hazubska-Przybyl, T.
Ratajczak, E.
Kalemba, E.M.
Bojarczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/41387.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
Biochemical studies during the induction phase of somatic embryogenesis in Picea abies [L.] Karst. and P. omorika [Pančić] Purk. can supplement our basic knowledge of the developmental processes accompanying the formation of embryogenic tissues from explants. Such studies may also contribute to finding the markers specific to the early stages of somatic embryogenesis of spruce species and, consequently, to the optimization of the process of initiation of embryogenic tissues from different types of plant explants treated with various growth regulator combinations. In this paper the effect of certain growth regulator systems on enzymatic activity was studied. The analysis of guaiacol peroxidase activity (EC 1.11.1.7), based on the spectrophotometric method, showed that this activity was the lowest in mature zygotic embryos (explants) and significantly higher in 8-week-old embryogenic and non-embryogenic calluses treated with various combinations of growth regulators. In the newly initiated embryogenic tissue, the activity of this enzyme decreased and remained at a lower level during proliferation, irrespective of the applied growth regulator combination. The type and concentration of growth regulators used for the initiation and proliferation of embryogenic tissues had no statistically significant effect on peroxidase activity, although during the initiation often its increased level was observed in calluses treated with 2.4-D. Detection of guaiacol peroxidase activity in the induction phase of somatic embryogenesis proves its participation in this process. The subsequent change in its activity indicates that this peroxidase can be a biochemical marker of somatic embryogenesis of the tested spruce species.
Źródło:
Dendrobiology; 2013, 69
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biofortification of the nutritional value of foods from the grain of Triticum durum Desf. by an agrotechnical method: A scientific review
Autorzy:
Zuk-Golaszewska, K.
Zeranska, A.
Krukowska, A.
Bojarczuk, J.
Powiązania:
https://bibliotekanauki.pl/articles/13653.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Enrichment of cereal grains is a priority area for research and an effective strategy compared to supplementation and food diversification. This paper discusses the current state of knowledge on the biofortification and nutritional value of food products from spring durum wheat grain, achieved by an agrotechnical method named ‘from field to table’ production. Biofortification refers to the production of safe food fortified with micronutrients and to the introduction of microorganisms that increase the bioretention of nutrients by plants, thus creating a new quality of food products as well as contributing to the protection of soil, perceived as a crucial resource in agricultural production. It is based on our knowledge of the physiology of yielding in conjunction with an increased productivity and higher value, essential in the context of health disorders due to dietary deficiencies. The choice of a durum wheat cultivation method depends on the crop’s habitat requirements, climate, proper selection of a previous crop, nutritional requirements, plant protection and storage. The conventional cultivation system diversifies the content of components, increasing Mn and Cu while decreasing P, K, Ca and Zn concentrations. Cultivation of this species on soil classified as very good wheat complex or good wheat ensures the highest yields characterised by high grain quality. This wheat is tolerant to water stress, although irrigation of spring durum wheat has been shown to improve nitrogen agronomic efficiency and to increase the yield of protein and energy. The recommended amount of nitrogen in plant fertilization is between 80-160 kg ha-1. Durum wheat flour has a higher content of yellow pigments and better qualitative composition of gluten proteins, while its kernels have lighter and thinner hulls. Durum wheat flour absorbs less water during bread baking. Owing to this attribute, pasta from durum wheat is more adhesive to sauces, has compact texture and is more difficult to overcook.
Źródło:
Journal of Elementology; 2016, 21, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-13 z 13

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