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Wyświetlanie 1-10 z 11
Tytuł:
ERF022 controls somatic embryogenesis in Arabidopsis via ethylene-related mechanism
Autorzy:
Nowak, K.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/80300.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
gene encoding
transcription factor
somatic embryogenesis
ERF022 gene
Arabidopsis
expression pattern
tf gene
plant stress
ethylene biosynthesis
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:
High activity of auxin response factors (ARF5, ARF6, ARF10 and ARF16) in somatic embryogenesis of Arabidopsis
Autorzy:
Wojcikowska, B.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/80554.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
high activity
auxin response factor
indole-3-acetic acid
somatic embryogenesis
Arabidopsis
somatic cell
zygotic embryogenesis
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:
Auxin-related functions of LEAFY COTYLEDON2 gene in the induction of somatic embryogenesis in Arabidopsis
Autorzy:
Wojcikowska, B.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/951295.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
somatic embryogenesis
Arabidopsis
transcription factor
zygotic embryogenesis
leafy cotyledon2
gene expression
auxin response factor
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:
Morphogenic responses of Arabidopsis explants cultured in vitro in relation to the level of oxidative stress
Autorzy:
Kudelko, K.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/951273.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
morphogenic activity
Arabidopsis
explant
in vitro culture
oxidative stress
antioxidant activity
reactive oxygen species
somatic embryogenesis
immature zygotic embryo
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:
MiR396 involvement in regulation of somatic embryogenesis in Arabidopsis
Autorzy:
Szczygiel-Sommer, A.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/80953.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
microRNA
biogenesis
gene expression
eukaryotic organism
hormone signalling
environmental stress
somatic embryogenesis
Arabidopsis
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:
TSD1 (TUMORUS SHOOT DEVELOPMENT1) and TSD2 genes related with cell wall function are involved in somatic embryogenesis induced in vitro in Arabidopsis
Autorzy:
Kudelko, K.
Grzybkowska, D.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/80111.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
TSD1 gene
TSD2 gene
cell wall
somatic embryogenesis
Arabidopsis
cellulose biosynthesis
methyltransferase
cell adhesion
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:
Immature zygotic embryo cultures of Arabidopsis. A model system for molecular studies on morphogenic pathways induced in vitro
Autorzy:
Kraut, M.
Wojcikowska, B.
Ledwon, A.
Gaj, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/19556.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
To understand the molecular mechanism controlling in vitro plant morphogenesis, a culture system enabling induction of alternative morphogenic pathways (somatic embryogenesis, SE; shoot organogenesis, ORG) in a well defined population of somatic cells is needed. Arabidopsis is the most useful model plant for genomic studies, but a system in which SE or ORG can be induced alternatively in the same type of explant has not been proposed. Immature zygotic embryos (IZEs) of Arabidopsis provide the only explants with embryogenic potential, and have been recommended for studying mechanisms of SE induced in vitro. This study was aimed at defining culture conditions promoting induction of alternative morphogenic pathways: shoot ORG in IZE explants. The established protocol involves pretreatment of IZE explants with liquid auxin-rich callus induction (CIM) medium, followed by subculture on solid cytokinin-rich shoot induction medium (SIM). The method enables efficient shoot induction in Columbia (Col-0) and Wassilewskija (Ws), genotypes commonly used in molecular studies. During 3 weeks of culture up to 90% of Col-0 and 70% of Ws explants regenerated shoots via an indirect morphogenic pathway. We analyzed the qRT-PCR expression patterns of the LEC (LEC1, LEC2 and FUS3) genes, the key regulators of Arabidopsis embryogenesis, in the IZE explants induced to promote shoot ORG. The sharp decline of LEC expression on SIM medium confirmed that culture of Arabidopsis IZE explants enables experimental manipulation of the morphogenic response of somatic cells. A scheme illustrating various in vitro morphogenic responses of IZEs in relation to hormonal treatment is presented.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2011, 53, 2
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nitrogen management impact on winter triticale grain yield and nitrogen use efficiency
Autorzy:
Gaj, R.
Górski, D.
Wielgusz, K.
Kukawka, R.
Spychalski, M.
Borowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/53833306.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The soaring prices of nitrogen fertilizer production, low use efficiency of nitrogen compounds, and environmental threats resulting from soil nitrogen leaching and gaseous nitrogen losses are the main reasons for conducting research on increasing nitrogen use efficiency (NUE). The aim of the study was to assess the effect of foliar application of the new generation of N fertilizers in the second and third dose on the yield of winter triticale and grain protein content, and to evaluate the indicators of nutrient efficiency: agronomic efficiency and apparent nitrogen recovery, relative to fertilizer type and method of application. The experiment was set up as a single factor one with a complete randomized block design. The experimental factor was the varying dose of mineral nitrogen fertilization against the constant level of phosphorus and potassium application. According to the experimental design, two liquid fertilizers (A1N and A2N) applied to foliage were the source of nitrogen in the second and third doses of fertilization, except for the control treatment (AN). The use of the hybrid technique of nitrogen application in the triticale fertilization technology at the same time reduced N fertilizer doses by 20 and 25% and significantly enhanced the yield of grain. Moreover, the treatment with the tested fertilizers increased significantly the nitrogen use efficiency from 45% to 75%. Considering the average protein contents from four experiments, the reduction in nitrogen doses, irrespective of the liquid fertilizer used, resulted in a decline in the grain protein content compared to the control. The results demonstrate the possibility of meeting the legal requirements for reducing the nitrogen dose while ensuring the yield at the same or even an increased level.
Źródło:
Journal of Elementology; 2023, 28, 3; 561-593
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carrier Density Control by Illumination in Surface Doped, p-Type (Cd,Mn)Te Quantum Wells
Autorzy:
Maślana, W.
Kossacki, P.
Gaj, J. A.
Ferrand, D.
Bertolini, M.
Tatarenko, S.
Cibert, J.
Kutrowski, M.
Wojtowicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/2046939.pdf
Data publikacji:
2006-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Pp
78.67.De
61.72.Vv
Opis:
We report both decrease and increase in the 2D carrier gas density in a simple (Cd,Mn)Te/(Cd,Mg)Te heterostructure with (Cd,Mn)Te quantum well. The two effects were achieved by light with different photon energies. The quantum wells were 10 nm wide with 2D hole gas supplied by surface states. For the sample with 25 nm cap layer thickness, it was possible to tune the hole gas concentration from almost empty well (hole density below 1×10$\text{}^{10}$ cm$\text{}^{-2}$) to 45×10$\text{}^{10}$ cm$\text{}^{-2}$. The illumination with 425 nm wavelength almost doubled the hole gas density from the initial 24×10$\text{}^{10}$ cm$\text{}^{-2}$. The depletion mechanism was most effective for illumination with the orange (575 nm) light.
Źródło:
Acta Physica Polonica A; 2006, 110, 2; 255-262
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photoluminescence of p-Doped Quantum Wells with Strong Spin Splitting
Autorzy:
Boukari, H.
Kossacki, P.
Bertolini, M.
Ferrand, D.
Cibert, J.
Tatarenko, S.
Gaj, J. A.
Deveaud, B.
Ciulin, V.
Powiązania:
https://bibliotekanauki.pl/articles/2038307.pdf
Data publikacji:
2004-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.35.-y
71.55.Gs
73.21.Fg
75.30.Hx
75.50.Pp
Opis:
Photoluminescence of p-type modulation doped (Cd,Mn)Te quantum wells is studied with carrier density up to 5×10$\text{}^{11}$ cm$\text{}^{-2}$ at various spin splittings. This splitting can be made larger than the characteristic energies of the system thanks to the giant Zeeman effect. At small spin splitting and regardless of the carrier density, the photoluminescence exhibits a single line, which corresponds to the charged exciton in the singlet state. Above a certain spin splitting, the charged exciton is destabilized in favor of the exciton at vanishing hole density, and in favor of a double line at higher carrier density. It is found here that the charged exciton destabilization energy hardly depends on the carrier density. The double line is found to be band-to-band like, with the same initial state - where the holes have the same spin orientation - and final states that differ by some excitation of the 2D hole gas. In addition, the spin splitting needed to fully polarize the hole gas is twice smaller than expected from the single particle image and gives a unique insight into many-body effects in the hole gas.
Źródło:
Acta Physica Polonica A; 2004, 106, 3; 299-310
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 11

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