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    Wyświetlanie 1-8 z 8
    Tytuł:
    Localization of (homo)glutathione in effective and partially effective root nodules of Medicago truncatula root nodules
    Autorzy:
    Bederska, M.
    Borucki, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/80914.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    root nodule
    glutathione
    leguminous plant
    Medicago truncatula
    symbiotic interaction
    reactive oxygen species
    oxidative burst
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Localization of nitric oxide (NO) in effective and partially effective Medicago truncatula root nodules
    Autorzy:
    Bederska, M.
    Borucki, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/80822.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    root nodule
    Medicago truncatula
    nitric oxide
    nitrogen fixation
    Sinorhizobium meliloti
    Sinorhizobium medicae
    inoculation
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparative cytological and morphometric analysis of vacuolation in central tissue of the effective and ineffective pea [Pisum sativum L.] root nodules
    Autorzy:
    Borucki, W
    Powiązania:
    https://bibliotekanauki.pl/articles/56613.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    cytological observation
    vacuole
    botany
    central tissue
    vacuolation
    pea
    infected cell
    Pisum sativum
    three-dimensional reconstruction
    morphometric analysis
    root nodule
    Opis:
    Vacuoles play very important physiological roles in plant cells. Pea root nodules, which exhibit distinct zonation (meristematic zone and central tissue zones), may serve as a good experimental model for the investigations of vacuole development and its importance to cell and tissue functioning. Moreover, the nodule central tissue is composed of both infected and uninfected cells which play different physiological roles and differ in the level of vacuolation. Cytological observations revealed that central vacuoles of the infected cells of the effective nodules expand toward cell walls. Thus only thin layers of the cytoplasm separate each central vacuole from plasma membrane and cell wall. This finding is discussed from the viewpoint of improved exchange of solutes and water between the central vacuole and apoplast of the infected cell. Three-dimensional reconstruction of the vacuoles of infected cells within a fragment of effective nodule central tissue, showed their spatial arrangement. Possible advantages coming from the spatial arrangement of vacuoles within the central tissue are discussed. A comparative study of the central tissue (bacteroidal tissue) and meristem vacuolation of the effective and ineffective pea root nodules is also presented. Morphometric measurements revealed that the effective nodule central tissue was more vacuolated than the ineffective one. It was proved that maturation of the infected cells involves dynamic changes in their vacuolation. Having numerous fixing nitrogen bacteroids, the infected cells of effective central tissue were less vacuolated than uninfected cells. On the other hand, both infected and uninfected cells of the effective central tissue showed a much higher level of vacuolation in nitrogen-fixing zone than cells of the same type in ineffective tissue. These results indicate that vacuolation is an important factor in development and functioning of pea root nodule central tissue.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nowa struktura rynku telekomunikacyjnego - nowe podmioty, nowe zachowania
    The new structure of telecommunication market - new enterprises, new business relations
    Autorzy:
    Borucki, W.
    Szarzec, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/317760.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    rynek telekomunikacyjny
    operatorzy operatorów
    giełda telekomunikacyjna
    izba rozliczeniowa
    telecommunications market
    carriers' carriers
    telecommunications exchanges
    global telecommunications
    Opis:
    Omówiono kwestie wynikające z powstania takich nowych typów podmiotów, jak: operatorzy operatorów, giełdy telekomunikacyjne i izby rozliczeniowe. Podano informacje dotyczące rynku globalnego, a przede wszystkim spadku cen i wzrostu przepływności transmisji. Zasygnalizowano również niektóre zjawiska związane z modyfikacją tradycyjnych łańcuchów wartości dodanej w sektorze telekomunikacyjnym.
    The paper discusses some issues related to establishing new enterprises within the telecommunications sector such as: carriers' carriers, telecommunications on-line exchanges, global telecommunications clearing houses. The new structure of the market resulted from significant changes which took place in the global telecommunications sector: declining prices for telecommunications services and a high growth of trunk capacity due to the liberalization process and technological development. Moreover, some crucial modifications within the traditional value chains of telecommunications services, which determine new business relations within the sector, are also being discussed.
    Źródło:
    Telekomunikacja i Techniki Informacyjne; 2001, 3-4; 3-22
    1640-1549
    1899-8933
    Pojawia się w:
    Telekomunikacja i Techniki Informacyjne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Proliferation of peroxisomes in pea root nodules - an influence of NaCl- or Hg2plus-stress conditions
    Autorzy:
    Borucki, W
    Powiązania:
    https://bibliotekanauki.pl/articles/58800.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    proliferation
    peroxisome
    pea
    root nodule
    sodium chloride
    stress condition
    Pisum sativum
    cytochemistry
    catalase activity
    morphometry
    salinity
    mercury treatment
    Opis:
    Morphometric procedures were used to examine peroxisome number and di-stribution in pea (Pisum sativum L.) root nodules under NaCl (50 mM) or HgCl2 (7.3 µM) treatment. Peroxisomes were visualized cytochemically in meristem, invasion zone and prefixing zone of pea root nodules by catalase (EC 1.11.1.6) activity. The observations using light and electron microscopy revealed that the peroxisomes were predominantly spherical in shape and showed catalase activity. In nitrogen fixation zone, catalase active peroxisomes were observed occasionally. Bacteroids of nitrogen fixing zone showed enhanced cata-lase activity probably as a response to higher level of oxidative stress. Fluorescence microscopy investigations revealed enhanced level of (homo)glutathione in prefixing and nitrogen-fixing zone of NaCl- and Hg2+treated nodules, which served as an indicator of antioxidative response. Morphometric measurements revealed that during differentiation of meristematic cells into central tissue (bacteroidal tissue) cells an increase in peroxisome number was observed in unstressed nodules. Peroxisomes located in meristem, invasion zone and prefixing zone of NaCl- and Hg2+-treated nodules outnumbered that in control nodules. A substantial enlargement of peroxisome profiles was detected in NaCl- and Hg2+treated nodules. Peroxisome divisions observed in meristematic and infection thread penetration zone were responsible for an increase in peroxisome number.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 4; 287-298
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowania konsoli haptycznej do sterowania robotem medycznym
    The use of the haptic konsol to control of medical robot
    Autorzy:
    Sauer, P.
    Borucki, Ł.
    Peczyński, V.
    Michalski, M.
    Szyfter, W.
    Kozłowski, K.
    Budzyński, D.
    Madoński, R.
    Mrówczyński, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063916.pdf
    Data publikacji:
    2013
    Wydawca:
    Międzynarodowe Stowarzyszenie na rzecz Robotyki Medycznej
    Tematy:
    konsola haptyczna
    robot
    teleoperacja
    sterowanie impedancyjne
    uszno pochodny ropień mózgu
    symulator
    neuronawigacja
    chirurgia wspomagana komputerowo
    surgical robots
    human machine interface
    force feedback
    haptic
    telemanipulation
    Opis:
    W pracy przedstawiono wykorzystanie konsoli haptycznej Omega 7 do sterowania robotem KUKA LWR 4+ z zamontowanym uchwytem igły punkcyjnej. Manipulator KUKA zastosowano do usuwania usznopochodnego ropnia mózgu. W pierwszej części pracy przedstawiono prosty symulator, w którym do przeprowadzenia iniekcji w wirtualny ropień mózgu oraz pobrania płynu z jego wnętrza zastosowano konsolę haptyczną Omega 7. W dalszej części pracy przedstawiono stanowisko badawcze z robotem KUKA LWR 4+ i konsolą Omega 7 oraz pierwsze testy przeprowadzenia operacji z wykorzystaniem modelu czaszki.
    This paper presents the use of Omega 7 haptic console to control of KUKA LWR 4+ robot with integrated handle of puncture needles. KUKA manipulator was used to remove otogenic brain abscess. In the first part of the paper presents a simple simulator in which Omega 7 haptic consol was used to carry out injection into a virtual brain abscess and the withdrawal of fluid from inside. In the following paper presents a experimental set-up with the KUKA robot and haptic console and the first test of the operation using the model of skull.
    Źródło:
    Medical Robotics Reports; 2013, 2; 26--34
    2299-7407
    Pojawia się w:
    Medical Robotics Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Localization of acid phosphatase activity in the apoplast of root nodules of pea [Pisum sativum]
    Autorzy:
    Sujkowska, M
    Borucki, W.
    Golinowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/58311.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    localization
    acid phosphatase activity
    apoplast
    root nodule
    pea
    Pisum sativum
    symbiotic interaction
    Opis:
    Changes in the activity of acid phosphatase (AcPase) in the apoplast of pea root nodule were investigated. The activity was determined using lead and cerium methods. The results indicated a following sequence of AcPase activity appearance during the development of the infection thread: 1) low AcPase activity appears in the outer part of cells of symbiotic bacteria; 2) bacteria show increased AcPase activity, and the enzyme activity appears in the thread walls; 3) activity exhibits also matrix of the infection thread; 4) bacteria just before their release from the infection threads show high AcPase activity; 5) AcPase activity ceases after bacteria transformation into bacteroids. The increase in bacterial AcPase activity may reflect a higher demand for inorganic phosphorus necessary for propagation of the bacteria within the infection threads and/or involved in bacteria release from the infection threads.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 33-38
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Localization of expansin-like protein in apoplast of pea [Pisum sativum L.] root nodules during interaction with Rhizobium leguminosarum bv. viciae 248
    Autorzy:
    Sujkowska, M
    Borucki, W.
    Golinowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/58810.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    nodule
    infection thread
    interaction
    expansin-like protein
    pea
    localization
    Rhizobium leguminosarum bv.viciae
    expansive growth
    symbiosis
    botany
    symbiotic interaction
    apoplast
    Pisum sativum
    root nodule
    Opis:
    During nodule development on pea roots, apoplast undergoes changes in activity of plant cell wall proteins such as expansins (EXPs). Because the accumulation of EXP protein has been correlated with the growth of various plant organs, we investigated using Western Blot and immunolocalization studies with antibody against PsEXP1, whether this protein was accumulated in the expanding cells of nodule. Immunoblot results indicated the presence of a 30-kDa band specific for pea root nodules. The EXP proteins content rose during growth of pea root nodules. Expansin(s) protein was localized in nodule apoplast as well as in the infection thread walls. The enhanced amount of expansin-like proteins in meristematic part of nodule, root and shoot was shown. The localization of this protein in the meristematic cell walls can be related to the loosening of plant cell wall before cell enlargement. Both, plant cell enlargement and infection thread growth require activity of expansin(s). Possible involvement of EXPs in the process of pea root nodule development is also discussed.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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