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Wyszukujesz frazę "Arabidopsis thaliana" wg kryterium: Temat


Tytuł:
Climatic control of Arabidopsis thaliana [L.] Heynh. development
Autorzy:
Doroszewski, A
Gorska, K.
Gorski, T.
Powiązania:
https://bibliotekanauki.pl/articles/794199.pdf
Data publikacji:
1995
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
temperatura
czynniki klimatyczne
rozwoj roslin
jarowizacja
metoda sum temperatur
fenologia
uprawa roslin
doswiadczenia wazonowe
rzodkiewnik pospolity
doswiadczenia polowe
Arabidopsis thaliana
Opis:
In pot and field experiments the entergence, budding, flowering and ripening of Arabidopsis thaliana were observed. The quantitative relationships between phenology and climatic factors were determined using mainly multiple regression methods. Duration of periods between sowing and emergence and between flowering and ripening may be treated as hyperbolic functions of mean temperature and therefore the usual degreeday method can be applied. In the period between emergence and flowering the relationships are more complex; some modifications of methods relating development to temperature were used. A short vernalization after emergence, thereafter higher temperatures at long days accelerate flowering.
W doświadczeniach wazonowych i polowych obserwowano wschody, pączkowanie, kwitnienie i dojrzewania rzodkiewnika pospolitego (Arabidopsis thaliana). Określono ilościowe związki między fenologią a czynnikami klimatycznymi, stosując głównie metody regresji wieloktronej. Długość okresów między siewem i wschodami oraz między kwitnieniem i dojrzewaniem może być traktowana jako hiperboliczna funkcja średniej temperatury, co pozwala na użycie zwykłej metody sum temperatur. W okresie między wschodami a kwitnieniem zależności są bardziej skomplikowane; zastosowano w tym przypadku pewne modyfikacje metod wiążących rozwój z temperaturą. Krótki okres jaryzacji po wschodach, później zaś wyższe temperatury przy długich dniach przyśpieszają kwitnienie.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1995, 419; 23-27
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mapowanie podstawowych genomow w rodzaju Brassica
Autorzy:
Sadowski, J
Quiros, C.F.
Babula, D.
Kaczmarek, M.
Ziolkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/832857.pdf
Data publikacji:
2000
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
genetyka roslin
genomy
mapy genetyczne
rzodkiewnik pospolity
Arabidopsis thaliana
Brassica
plant genetics
genome
genetic map
thale cress
Źródło:
Rośliny Oleiste - Oilseed Crops; 2000, 21, 1; 21-32
1233-8273
Pojawia się w:
Rośliny Oleiste - Oilseed Crops
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetyczne i fizyczne podstawy organizacji chromosomow u wybranych gatunkow z rodziny Brassicaceae
Autorzy:
Babula, D
Kaczmarek, M.
Ziolkowski, P.
Sadowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/833677.pdf
Data publikacji:
2001
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
genetyka roslin
genomy
Arabidopsis thaliana
Brassica
mapy chromosomow
plant genetics
genome
chromosome map
Źródło:
Rośliny Oleiste - Oilseed Crops; 2001, 22, 2; 315-326
1233-8273
Pojawia się w:
Rośliny Oleiste - Oilseed Crops
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A diadenosine 5',5''-P1P4 tetraphosphate (Ap4A) hydrolase from Arabidopsis thaliana that is activated preferentially by Mn2+ ions
Autorzy:
Szurmak, Blanka
Wysłouch-Cieszyńska, Aleksandra
Wszelaka-Rylik, Małgorzata
Bal, Wojciech
Dobrzańska, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1040832.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Nudix
Ap_4A hydrolase
Arabidopsis thaliana
manganese
Opis:
Asymmetrical diadenosine 5',5''-P1P4 tetraphosphate (Ap4A) hydrolases are key enzymes controlling the in vivo concentration of Ap4A - an important signaling molecule involved in regulation of DNA replication and repair, signaling in stress response and apoptosis. Sequence homologies indicate that the genome of the model plant Arabidopsis thaliana contains at least three open reading frames encoding presumptive Ap4A hydrolases: At1g30110, At3g10620, and At5g06340. In this work we present efficient overexpression and detailed biochemical characteristics of the AtNUDX25 protein encoded by the At1g30110 gene. Aided by the determination of the binding constants of Mn(Ap4A) and Mg(Ap4A) complexes using isothermal titration calorimetry (ITC) we show that AtNUDX25 preferentially hydrolyzes Ap4A in the form of a Mn2+ complex.
Źródło:
Acta Biochimica Polonica; 2008, 55, 1; 151-160
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abscisic acid does not influence the subcellular distribution of the HYL1 protein from Arabidopsis thaliana
Autorzy:
Lesicka-Górecka, Joanna
Szarzyńska, Bogna
Sawczak, Marta
Bagdiul, Ivona
Górski, Paweł
Jarmołowski, Artur
Szweykowska-Kulińska, Zofia
Powiązania:
https://bibliotekanauki.pl/articles/1040709.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
subcellular distribution
abscisic acid
Arabidopsis thaliana
expression profile
HYL1 protein
Opis:
HYL1 is a nuclear protein involved in the processing of miRNAs but its exact function remains unknown. Arabidopsis thaliana hyl1 mutants exhibit hypersensitivity to ABA. We decided to answer the question whether ABA affects the HYL1 protein localization within the cell and show that it does not. We also studied the expression of HYL1 in different tissues and organs. In this paper we show for the first time the expression profile of the HYL1 protein using anti-HYL1 antibodies. The protein is present in seedlings and mature plants in all organs studied, with the highest amount in inflorescences. A. thaliana HYL1 protein has several repetitions of a 28-amino-acid sequence at the C-terminus that confer protein instability. Our bioinformatic analysis of HYL1 homologs in different Brassica species shows that this repetition is typical only for Arabidopsis. This may suggest a relatively late evolutionary acquisition of the C-terminal domain.
Źródło:
Acta Biochimica Polonica; 2008, 55, 3; 517-524
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The plant Nudix hydrolase family
Autorzy:
Kraszewska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1040666.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Nudix
MutT
Arabidopsis thaliana
plant
pyrophosphohydrolase
hydrolase
Opis:
Nudix hydrolases are a family of proteins defined by a conserved amino-acid sequence GX5-EX7REUXEEXGU, where U is a hydrophobic residue. These enzymes are widely distributed among all classes of organisms and catalyze, with varying degrees of substrate specificity, the hydrolysis of a variety of nucleoside diphosphate derivatives: nucleoside di- and triphosphates and their oxidized forms, dinucleoside polyphosphates, nucleotide sugars, NADH, coenzyme A and the mRNA cap. Nudix proteins are postulated to control the cellular concentration of these compounds. The genome of the model plant Arabidopsis thaliana contains 29 genes coding for putative Nudix hydrolases. Recently, several Arabidopsis Nudix genes have been cloned and their products characterized. This review summarizes current knowledge on these plant enzymes and discusses their possible cellular functions.
Źródło:
Acta Biochimica Polonica; 2008, 55, 4; 663-671
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mutational analysis of the AtNUDT7 Nudix hydrolase from Arabidopsis thaliana reveals residues required for protein quarternary structure formation and activity
Autorzy:
Olejnik, Kamil
Płochocka, Danuta
Grynberg, Marcin
Goch, Grażyna
Gruszecki, Wiesław
Basińska, Teresa
Kraszewska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1040587.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
dimer
Nudix
structure-function analysis
mutagenesis
AtNUDT7
Arabidopsis thaliana
14.3.3 interaction
biophysical analysis
Opis:
Arabidopsis thaliana AtNUDT7, a homodimeric Nudix hydrolase active on ADP-ribose and NADH, exerts negative control on the major signaling complex involved in plant defense activation and programmed cell death. The structural and functional consequences of altering several amino-acid residues of the AtNUDT7 protein have been examined by site-directed mutagenesis, far-UV circular dichroism (CD), attenuated total reflection-Fourier transform infrared (ATR-FTIR) and photon correlation (PCS) spectroscopy, biochemical analysis and protein-protein interaction studies. Alanine substitutions of F73 and V168 disallowed dimer formation. Both the F73A- and V168A-mutated proteins displayed no observable enzymatic activity. Alanine substitution of the V69 residue did not significantly alter the enzyme activity and had no influence on dimer arrangement. The non-conserved V26 residue, used as a negative control, did not contribute to the enzyme quaternary structure or activity. Detailed biophysical characterization of the wild-type and mutant proteins indicates that the mutations do not considerably alter the secondary structure of the enzyme but they affect dimer assembly. In addition, mutating residues V69, F73 and V168 disrupted the binding of AtNUDT7 to the regulatory 14.3.3 protein. These are the first studies of the structure-function relationship of AtNUDT7, a Nudix hydrolase of important regulatory function.
Źródło:
Acta Biochimica Polonica; 2009, 56, 2; 291-300
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Arabidopsis thaliana Nudix hydrolase AtNUDT7 forms complexes with the regulatory RACK1A protein and Ggamma subunits of the signal transducing heterotrimeric G protein
Autorzy:
Olejnik, Kamil
Bucholc, Maria
Anielska-Mazur, Anna
Lipko, Agata
Kujawa, Martyna
Modzelan, Marta
Augustyn, Agnieszka
Kraszewska, Elzbieta
Powiązania:
https://bibliotekanauki.pl/articles/1039863.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
protein complexes
Nudix
AtNUDT7
Arabidopsis thaliana
heterotrimeric G protein
RACK1A
Opis:
Arabidopsis thaliana AtNUDT7 Nudix pyrophosphatase hydrolyzes NADH and ADP-ribose in vitro and is an important factor in the cellular response to diverse biotic and abiotic stresses. Several studies have shown that loss-of-function Atnudt7 mutant plants display many profound phenotypes. However the molecular mechanism of AtNUDT7 function remains elusive. To gain a better understanding of this hydrolase cellular role, proteins interacting with AtNUDT7 were identified. Using AtNUDT7 as a bait in an in vitro binding assay of proteins derived from cultured Arabidopsis cell extracts we identified the regulatory protein RACK1A as an AtNUDT7-interactor. RACK1A-AtNUDT7 interaction was confirmed in a yeast two-hybrid assay and in a pull-down assay and in Bimolecular Fluorescence Complementation (BiFC) analysis of the proteins transiently expressed in Arabidopsis protoplasts. However, no influence of RACK1A on AtNUDT7 hydrolase catalytic activity was observed. In vitro interaction between RACK1A and the AGG1 and AGG2 gamma subunits of the signal transducing heterotrimeric G protein was also detected and confirmed in BiFC assays. Moreover, association between AtNUDT7 and both AGG1 and AGG2 subunits was observed in Arabidopsis protoplasts, although binding of these proteins could not be detected in vitro. Based on the observed interactions we conclude that the AtNUDT7 Nudix hydrolase forms complexes in vitro and in vivo with regulatory proteins involved in signal transduction. Moreover, we provide the initial evidence that both signal transducing gamma subunits bind the regulatory RACK1A protein.
Źródło:
Acta Biochimica Polonica; 2011, 58, 4; 609-616
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Beyond sequence similarity – the curious case of GW/WG protein domain
Autorzy:
Karlowski, W.M.
Powiązania:
https://bibliotekanauki.pl/articles/79861.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
RNA silencing
gene expression
protein domain
amino acid sequence
Arabidopsis thaliana
Vitis vinifera
cysteine
phenylalanine
histidine
methionine
tyrosine
sequence similarity
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2011, 92, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Fusarium culmorum infection on survivability of a T-DNA tagged mutant of Arabidopsis thaliana harboring a mutation in the peptide transporter gene At5g46050
Autorzy:
Warzecha, T.
Lundh, D.
Mandal, A.
Powiązania:
https://bibliotekanauki.pl/articles/80558.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
abiotic stress
abscisic acid
Arabidopsis thaliana
biotic stress
disease resistance
ethylene
Fusarium culmorum
infection
jasmonic acid
mitogen-activated protein kinase
reactive oxygen species
stress condition
T-DNA tagging
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2011, 92, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Medicago sativa Mhb1gene expression on defense response of Arabidopsis thaliana plants
Autorzy:
Maassen, Anna
Hennig, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1039900.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Arabidopsis thaliana
pathogen infection
nitrotyrosine
nitric oxide
peroxidase activity
non-symbiotic hemoglobin
Opis:
Besides the previously described nitric oxide-detoxification activity we identified new features of class-1 non-symbiotic hemoglobin from Medicago sativa (Mhb1). Under in vitro conditions, using peroxidase in-gel activity assay, the Mhb1 protein was shown to possess also peroxidase-like activity. Due to this activity, in the presence of nitrite and hydrogen peroxide, the protein can mediate autonitration and nitration of other proteins at tyrosine residues, as revealed by tandem mass spectrometry and immune assay approaches. Mhb1 through its multifunctional activities can affect different components of signal transduction cascades operating during plant response to infections. This influence is manifested by Mhb1-mediated selective up-regulation of expression of certain pathogen inducible genes in Pseudomonas syringae infected Arabidopsis thaliana plants which overproduce Mhb1, as revealed by reverse transcription-quantitative real-time PCR analysis. Changes in expression level of these genes can influence such processes as synthesis of secondary metabolites, protein degradation and biosynthesis of ethylene. They can also result in alteration of pathogen-induced defense response of Mhb1 transgenic plants.
Źródło:
Acta Biochimica Polonica; 2011, 58, 3; 427-432
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zeaxanthin epoxidation - an in vitro approach
Autorzy:
Kuczyńska, Paulina
Latowski, Dariusz
Niczyporuk, Sylvia
Olchawa-Pajor, Monika
Jahns, Peter
Gruszecki, Wiesław
Strzałka, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1039789.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Arabidopsis thaliana mutants npq1
model system
npq2
xanthophyll cycle
zeaxanthin epoxidation
Opis:
Zeaxanthin epoxidase (ZE) is an enzyme operating in the violaxanthin cycle, which is involved in photoprotective mechanisms. In this work model systems to study zeaxanthin (Zx) epoxidation were developed. Two assay systems are presented in which epoxidation of Zx was observed. In these assays two mutants of Arabidopsis thaliana which have active only one of the two xanthophyll cycle enzymes were used. The npq1 mutant possesses an active ZE and is thus able to convert Zx to violaxanthin (Vx) but the violaxanthin de-epoxidase (VDE) is inactive, so that Vx cannot be converted to Zx. The other mutant, npq2, possesses an active VDE and can convert exogenous Vx to Zx under strong light conditions but reverse reaction is not possible. The first assay containing thylakoids from npq1 and npq2 mutants of A. thaliana gave positive results and high efficiency of epoxidation reaction was observed. The amount of Zx was reduced by 25%. To optimize high efficiency of epoxidation reaction additional factors facilitating both fusion of the two types of thylakoids and incorporation of Zx to their membranes were also studied. The second kind of assay contained npq1 mutant thylakoids of A. thaliana supplemented with exogenous Zx and monogalactosyldiacylglycerol (MGDG). Experiments with different proportions of Zx and MGDG showed that their optimal ratio is 1:60. In such system, due to epoxidation, the amount of Zx was reduced by 38% of its initial level. The in vitro systems of Zx epoxidation described in this paper enable analysis some properties of the ZE without necessity of its isolation.
Źródło:
Acta Biochimica Polonica; 2012, 59, 1; 105-107
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ABA-independent SnRK2 kinases are involved in plant response to salinity
Autorzy:
Szymanska, K.
Kulik, A.
Wendehenne, D.
Dobrowolska, G.
Powiązania:
https://bibliotekanauki.pl/articles/80987.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
plant response
salinity
hyperosmolarity
Arabidopsis thaliana
root system architecture
salt stress
stress tolerance
glutathione
hydrogen peroxide
chlorophyll degradation
SnRK2 kinase
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:
Alternative respiration as primary defence during cadmium-induced mitochondrial oxidative challenge in Arabidopsis thaliana
Autorzy:
Keunen, E.
Jozefczak, M.
Remans, T.
Vangronsveld, J.
Cuypers, A.
Powiązania:
https://bibliotekanauki.pl/articles/80119.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
cadmium concentration
mitochondrial alternative respiration
alternative oxidase
dehydrogenase
plant stress
Arabidopsis thaliana
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:
Antioxidant defence system in the leaves and roots of A. thaliana under long-term S deficiency
Autorzy:
Ostaszewska, M.
Juszczuk, I.M.
Powiązania:
https://bibliotekanauki.pl/articles/79954.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
antioxidant defense system
Arabidopsis thaliana
leaf
root
photosynthetic pigment
carotenoid
superoxide dismutase
ascorbate peroxidase
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

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