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    Wyświetlanie 1-6 z 6
    Tytuł:
    Production and characterization of tissue cultures of four crocus species from the Carpathian Basin
    Autorzy:
    Freytag, Csongor
    Pabar, Sándor Attila
    Demeter, Zita
    Simon, Ádám
    Resetár, Anna
    Molnár V., Attila
    Sramkó, Gábor
    Máthé, Csaba
    Powiązania:
    https://bibliotekanauki.pl/articles/952114.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    carpathian basin
    organogenesis
    embryogenesis
    plant regeneration
    antioxidant
    enzymes
    crocus
    Opis:
    We aimed to produce tissue cultures and plant regeneration from endangered Crocus species: C. scepusiensis, C. tommasinianus, C. vittatus (“Verni” series of the genus) and C. banaticus. For initiation of cultures we used a plant growth regulator (PGR) combination used for in vitro culture of saffron and its relatives: 10 mg L-1 α-naphthaleneacetic acid (NAA) and 1 mg L-1 6-benzyladenine (BA). Shoot tips of young seedlings (C. scepusiensis) and corms (for the rest of species) were used as explants. C. scepusiensis explants developed into organogenic calli. On media with decreased NAA and with or without increased BA concentration, calli produced stigma-like structures and/or shoots and whole plants. In the other species, callus initiation medium induced callus formation with abundant somatic embryos. In C. tommasinianus, embryos developed shoots when auxin content of medium was decreased. In C. banaticus, a decrease of auxin with or without an increase in cytokinin content led to shoot or whole plant regeneration, as in C. scepusiensis. In the case of C. vittatus and C. banaticus, initiation and/or maintenance of cultures on indole-3-butyric acid (IBA) and increased sucrose concentration stimulated whole plant regeneration and in vitro cormlet development. C. scepusiensis and the rest of cultures (organogenic vs. embryogenic) differed at the biochemical level: C. scepusiensis cultures had higher (yet still low) enzymatic antioxidant (catalase, peroxidase) activities. With respect to catalase isoenzyme patterns, C. banaticus was different from the rest of cultures, demonstrating its distinct taxonomical position. Besides germplasm preservation use of the present cultures, they have a potential biotechnological value.
    Źródło:
    Acta Biologica Cracoviensia. Series Botanica; 2017, 59, 2
    0001-5296
    Pojawia się w:
    Acta Biologica Cracoviensia. Series Botanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Middle Miocene of the Fore-Carpathian Basin (Poland, Ukraine and Moldova)
    Autorzy:
    Wysocka, A.
    Radwański, A.
    Górka, M.
    Bąbel, M.
    Radwańska, U.
    Złotnik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/138689.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Lithofacies
    fossil assemblages
    Middle Miocene
    Fore-Carpathian Basin
    Polska
    Ukraine
    Litofacje
    miocen
    zbiornik przedkarpacki
    Polska
    Ukraina
    Opis:
    Studies of Miocene sediments in the Fore-Carpathian Basin, conducted by geologists from the University of Warsaw have provided new insights on the distribution of the facies infilling the basin, particularly in the forebulge and back-bulge zones. The origin of the large-scale sand bodies, evaporitic deposits and large-scale organic buildups is discussed, described and verified. These deposits originated in variable, shallow marine settings, differing in their water chemistry and the dynamics of sedimentary processes, and are unique with regard to the fossil assemblages they yield. Many years of taxonomic, biostratigraphic, palaeoecologic and ecotaphonomic investigations have resulted in the identification of the fossil assemblages of these sediments, their age, sedimentary settings and post-mortem conditions. Detailed studies were focused on corals, polychaetes, most classes of molluscs, crustaceans, echinoderms, and fishes.
    Źródło:
    Acta Geologica Polonica; 2016, 66, 3; 351-401
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    When did the Little Ice Age end and the Recent Global Warming Startin Hungary? Late Reflections About a Scientific Faith Debate
    Autorzy:
    RÁCZ, Lajos
    Powiązania:
    https://bibliotekanauki.pl/articles/2081254.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    historia klimatu
    zmiany klimatyczne
    mała epoka lodowcowa
    basen karpacki
    globalne ocieplenie
    climate history
    climate change
    Little Ice Age
    Recent Global Warming
    Carpathian Basin
    Opis:
    We try to fi nd answer to the question: when did the Little Ice Age end and the Recent Global Warming start in Hungary? Based on the temperature time series of Budapest and data about the freezing of the Danube from the 1810s the cooling of the climate is perceiveable. The cool-cold and rainy climate system showed two centres of gravity during the 19th century, the fi rst in the 1830s and 1840s, the second in the last two decades of the 19th century. Furthermore, despite the rising of the temperature the climate remained mostly cool and wet until the 1940s. According to the global tendencies there is no obvious climate change trend, though the temperature became colder in decades’ average, but the fl uctuations were very hectic, as usual in transition periods. The diminution in the quantity of precipitation already started in the 1940s though, and proved to be stable. The breakthrough of the Recent Global Warming’s climate system became apparent from the 1980s based on the data of Budapest’s time series. That’s when the ’mediterranean climate-scissors’ opened, and the Danube’s basin became warmer and drier. Even if we examine the tendency of the temperature and precipitation changing in the 20th century separately, we can’t get a clear picture. The warming obviously shows from the last decade of the 19th century, but according to the researchers who are sceptic about Recent Global Warming we can’t use one of the biggest cooling downs in history that occured in the last third of the 19th century as a reference point. The climate regime that was signifi cantly more pluvial than the reference period lasted till the 1940s, and there are no signs of the climate becoming signifi cantly drier prior to the 1980s. If we consider the rise of temperature as the only indicator of the Global Warming, then the warming started in the last decades of the 19th century in Hungary as well. If we consider the decrease in the amount of precipitation to be decisive, then this process started in the 1940s, although there was no signifi cant drying tendency before the 1970s.
    Źródło:
    Historyka studia metodologiczne; 2016, 46; 197-208
    0073-277X
    Pojawia się w:
    Historyka studia metodologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The intramontane Orava Basin - evidence of large-scale Miocene to Quaternary sinistral wrenching in the Alpine-Carpathian-Pannonian area
    Autorzy:
    Ludwiniak, Mirosław
    Śmigielski, Michał
    Kowalczyk, Sebastian
    Łoziński, Maciej
    Czarniecka, Urszula
    Lewińska, Lena
    Powiązania:
    https://bibliotekanauki.pl/articles/138722.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Orava Basin
    Central Carpathian Palaeogene Basin
    structural analysis
    strike-slip related basin
    transrotational basin
    joint pattern analysis
    Western Carpathians
    Kotlina Orawska
    paleogeński basen centralno-karpacki
    paleogeńskiego basen Karpat centralnych
    analiza strukturalna
    basen przesuwczy
    basen transrotacyjny
    Karpaty Zachodnie
    Opis:
    The Carpathian Orava Basin is a tectonic structure filled with Neogene and Quaternary deposits superimposed on the collision zone between the ALCAPA and European plates. Tectonic features of the south-eastern margin of the Orava Basin and the adjoining part of the fore-arc Central Carpathian Palaeogene Basin were studied. Field observations of mesoscopic structures, analyses of digital elevation models and geological maps, supplemented with electrical resistivity tomography surveys were performed. Particular attention was paid to joint network analysis. The NE-SW-trending Krowiarki and Hruštinka-Biela Orava sinistral fault zones were recognized as key tectonic features that influenced the Orava Basin development. They constitute the north-eastern part of a larger Mur-Mürz-Žilina fault system that separates the Western Carpathians from the Eastern Alps. The interaction of these sinistral fault zones with the older tectonic structures of the collision zone caused the initiation and further development of the Orava Basin as a strike-slip-related basin. The Krowiarki Fault Zone subdivides areas with a different deformation pattern within the sediments of the Central Carpathian Palaeogene Basin and was active at least from the time of cessation of its sedimentation in the early Miocene. Comparison of structural data with the recent tectonic stress field, earthquake focal mechanisms and GPS measurements allows us to conclude that the Krowiarki Fault Zone shows a stable general pattern of tectonic activity for more than the last 20 myr and is presently still active.
    Źródło:
    Acta Geologica Polonica; 2019, 69, 3; 339-386
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neotectonic structures of the Upper Silesian region, south Poland
    Autorzy:
    Lewandowski, Józef
    Powiązania:
    https://bibliotekanauki.pl/articles/2026801.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    neotectonics structures
    glacioisostatic movements
    tectonic fracture zones
    induced seismicity
    Carpathian Foredeep
    Upper Silesian Coal Basin (USCB)
    Opis:
    Neo tec tonic struc tures of the Up per Sile sia that origi nated dur ing the last 5 Ma (Plio cene and Qua ter nary) over lap Mio cene gra bens and horsts of the Car pa thian Fore deep. They had been re ac ti vated in Plio cene as an ef fect of the young Al pine up lift of the Car pa thian Fore deep. It is pos tu lated that ice- sheet de rived com pac tion of a thick Mio cene de pos its was the most sig nifi cant agent of the de vel op ment of neo tec tonic de pres sions. Gla cioi so stasy of mo bile bed - rock struc tures was pre suma bly also an im por tant com po nent of ver ti cal move ments. The am pli tude of neo tec tonic move ments is es ti mated to 40–100 m, bas ing on DEM map analy sis, analy sis of sub- Quaternary struc tural maps, and the Pleis to cene cover thick ness. The present- day tec tonic phe nom ena are gen er ated by mining- induced seis mic ity. These are con nected with stress re laxa tion in the deep bed rock thrust zones of the Up per Sile sian Coal Ba sin.
    Źródło:
    Studia Quaternaria; 2007, 24; 21-28
    1641-5558
    2300-0384
    Pojawia się w:
    Studia Quaternaria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neogene activity of the Outer Carpathians recorded by thrust-top basin deposits – an example from the Rzeszów area, Poland
    Autorzy:
    Uroda, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/138906.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Skole thrust sheet
    foreland thrusts
    hinterland thrusts
    Outer Carpathian fold-and thrust belt
    basin inversion
    depocentre migration
    syntectonic sedimentation
    płaszczowina skolska
    Karpaty Zewnętrzne
    migracja depocentrów
    sedymentacja
    Opis:
    The Rzeszów thrust-top basin was formed on the active Skole thrust sheet of the Outer Carpathian fold-and-thrust belt and filled with Miocene syntectonic sediments. New seismic 3D, well and field data were used to define the relationship between sedimentation and tectonic activity and to establish the synkinematic context of the Rzeszów basin-fill architecture. The basin evolution was controlled by the activity of the Carpathian frontal thrust and hinterland thrusts developed in the forelimbs of folds in the Skole thrust sheet, bounding the basin from the north and south, respectively. The activity of the frontal thrust resulted in hinterland-directed depocentre migration and tilting of the syntectonic stratigraphic sequence. Balanced cross-sections have indicated that during the last compressive stage of deformation, the syntectonic deposits filling the basin were shortened by c. 5%, which resulted in the formation of folds and contractional faults. The architecture of the syntectonic deposits and the development of contractional structures reflect the activity of thrusts bounding the basin during compressive deformation of the Carpathian orogenic belt.
    Źródło:
    Acta Geologica Polonica; 2020, 70, 1; 79-96
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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