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Wyświetlanie 1-15 z 29
Tytuł:
Badania nad wpływem fenoli na biogenezę wodną przy zastosowaniu Daphnia magna jako wskaźnika
Issledovanija vlijanija fenolov na vodnuju biocenozu s primeneniem Daphnia magna kak ukazatelja
Investigations on the influence of phenols on water biocenosis employing Daphnia magna as indicator
Autorzy:
Cabejszek, I.
Just, J.
Powiązania:
https://bibliotekanauki.pl/articles/876347.pdf
Data publikacji:
1959
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
biogeneza
woda
substancje szkodliwe
scieki przemyslowe
zanieczyszczenia wod
fenole
zwiazki chemiczne
wlasciwosci toksyczne
zagrozenia
fauna
Daphnia magna
o-krezol
tymol
rezorcyna
hydrochinon
biogenesis
water
harmful substance
industrial sewage
water pollution
phenol
chemical compound
toxicological property
hazard
thymol
resorcin
hydroquinone
Źródło:
Roczniki Państwowego Zakładu Higieny; 1959, 10, 1
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prohibitins and Ras2 protein cooperate in the maintenance of mitochondrial function during yeast aging.
Autorzy:
Kirchman, Paul
Miceli, Michael
West, Roger
Jiang, James
Kim, Sangkyu
Jazwinski, S
Powiązania:
https://bibliotekanauki.pl/articles/1043375.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
ROS
retrograde response
Saccharomyces cerevisiae
longevity
mitochondrial biogenesis
Opis:
The yeast Saccharomyces cerevisiae has a finite replicative life span. Yeasts possess two prohibitins, Phb1p and Phb2p, in similarity to mammalian cells. These proteins are located in the inner mitochondrial membrane, where they are involved in the processing of newly-synthesized membrane proteins. We demonstrate that the elimination of one or both of the prohibitin genes in yeast markedly diminished the replicative life span of cells that lack fully-functional mitochondria, while having no effect on cells with functioning mitochondria. This deleterious effect was suppressed by the deletion of the RAS2 gene. The expression of PHB1 and PHB2 declined gradually up to 5-fold during the life span. Cells in which PHB1 was deleted in conjunction with the absence of a mitochondrial genome displayed remarkable changes in mitochondrial morphology, distribution, and inheritance. This loss of mitochondrial integrity was not seen in cells devoid of PHB1 but possessing an intact mitochondrial genome. In a subset of the cells, the changes in mitochondrial integrity were associated with increased production of reactive oxygen species, which co-localized with the altered mitochondria. The mitochondrial deficits described above were all suppressed by deletion of RAS2. Our data, together with published information, are interpreted to provide a unified view of the role of the prohibitins in yeast aging. This model posits that the key initiating event is a decline in mitochondrial function, which leads to progressive oxidative damage that is exacerbated in the absence of the prohibitins. This aggravation of the initial damage is ameliorated by the suppression of the production of mitochondrial proteins in the absence of Ras2p signaling of mitochondrial biogenesis.
Źródło:
Acta Biochimica Polonica; 2003, 50, 4; 1039-1056
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Włodzimierz Sedlak wobec zagadnienia genezy życia: od biochemii krzemu poprzez bioelektronikę do teologii światła
Włodzimierz Sedlak’s Contribution to the Study of the Origin of Life: From Biochemistry of Silicon across Bioelectronics to Theology of Light
Autorzy:
Wnuk, Marian
Powiązania:
https://bibliotekanauki.pl/articles/2013918.pdf
Data publikacji:
2005
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
Włodzimierz Sedlak (1911-1993)
powstanie życia
krzem
krzemowe formy życia
biogeneza elektromagnetyczna
bioelektronika
paleobiochemia
Włodzimierz Sedlak (1911–1993)
origin of life
silicon
silicic life forms
light
electromagnetic biogenesis
bioelectronics
paleobiochemistry
Opis:
The subject of the presentation was to reveal the main components of the views of Rev. Włodzimierz Sedlak (31.10.1911–17.02.1993) concerning the origin of life. The development of these views passed through the following stages: 1) the theory of silicic life forms (1959–1967) which he labeled “the theory of siliconides”, 2) the bioelectronic model of abiogenesis (1967–1988), and 3) speculations about electromagnetic biogenesis. The basic claims of the theory of silicic life forms are the following: (a) silicon is an essential component of biosystems and fulfils significant roles in phylogenetically older forms of life; (b) the previous essential role of silicon in the organization of life has been reduced in higher organisms to the role of a microelement; (c) the attempts at the reconstruction of the chemical evolution of life should be undertaken, to extend it beyond the organic compounds of carbon, namely to those containing silicon and forming the most primitive forms of life on the Earth; (d) hypothetic silicic organisms made up the most primitive life on the Earth.. The main theses of bioelectronic model of abiogenesis are the following: (a) there exists the coupling between chemical reactions and electronic processes in organisms (he calls it “the quantum seam of life”); photons act as a coupling factor between these two classes of processes; (b) the existence the such coupling makes the generation and duration of the plasma state of particles possible in all metabolizing parts of the organism; (c) there exists bioplasma – a new state of matter – that is characteristic for living organisms only; (d) the first act of the creation of the chemical-electronic coupling is to be regarded as equivalent with biogenesis: (e) bioplasma existed well before the macroscopic organic morphological structures were formed and functioned already when the life was based on aluminosilicates. Sedlak’s speculation on the electromagnetic biogenesis implies that the evolution of biosphere began with the moment of birth of light, i.e. in one of the earliest phases of existence of Universe. God, identified by him with the Light, created life, possessing the luminous nature. Life never altered its electromagnetic foundation: either at any new stage, or at a new level of organization, or when the first human being was created. It seems that Sedlak’s works can be valuable for the present and future investigations aimed at the reconstruction of biogenesis. Although they are undervalued now, they should be regarded as containing many valuable intuitions. They deserve a thorough analysis and – where it is possible – empirical testing of implications drawn from them.
Źródło:
Roczniki Filozoficzne; 2005, 53, 1; 309-320
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chromoplast biogenesis in Chelidonium majus petals
Autorzy:
Prebeg, T
Ljubesic, N.
Wrischer, M.
Powiązania:
https://bibliotekanauki.pl/articles/57510.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
chromoplast
biogenesis
Chelidonium majus
petal
greater celandine
fibrillin
ultrastructure
Opis:
The differentiation of chromoplasts, with special emphasis on the formation and the organisation of chromoplast fibrils, was followed in the petals of the greater celandine, Chelidonium majus L. Electron microscopic observations showed that, in the epidermis, differentiation of chromoplasts started from leucoplasts, while mesophyll chromoplasts originated from chloroplasts. During petal maturation, fibrils accumulated in the plastids, often arranging in a parallel fashion to form compact birefringent bundles. Immediately before flower opening, these fibrillar bundles started to disorganise, and, at anthesis, most chromoplasts contained widely spaced fibrils which were irregularly dispersed through the plastid interior. During chromoplast differentiation, fibrils were commonly observed to protrude from plastoglobules, suggesting the possible site of their formation. Western analysis indicated that a protein antigenically related to fibrillin from pepper chromoplasts participates in the constitution of fibrils in Chelidonium petals.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 2; 107-112
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nuclear and mitochondrial genome responses in HeLa cells treated with inhibitors of mitochondrial DNA expression
Autorzy:
Piechota, Janusz
Szczęsny, Roman
Wolanin, Kamila
Chlebowski, Aleksander
Bartnik, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/1041204.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
thiamphenicol
mtDNA depletion
HeLa
dideoxycytidine
mitochondrial biogenesis
ethidium bromide
Opis:
The influence of mutations in the mitochondrial DNA (mtDNA) on the bioenergetic metabolism of the cell is still poorly understood. Many of the mutations in the mtDNA affect the expression of the mitochondrial genome. Investigations on cells from patients are not easy, especially as the mitochondrial DNA is heteroplasmic and this state is changed in culture. Moreover, the nuclear background and the mitochondrial haplotype may affect the behaviour of cells. Transfer of patient mitochondria to rho zero cell lines is also not optimal as these cells in general have many nuclear changes which may also affect cell behaviour. Thus, we decided to use inhibitors of mitochondrial genome expression, such as thiamphenicol, ethidium bromide and dideoxycytidine to investigate the bioenergetic metabolism of HeLa cells. We found that oxidative phosphorylation and glycolysis participate equally in ATP production in HeLa cells and that decreased activity of the respiratory chain leads to increased glycolysis and the reduction of cell growth. Insufficient ATP production in the oxidative phosphorylation process was not compensated by increased proliferation of the mitochondria. However, we were able to show that there are some mechanisms compensating limited expression of the mitochondrial genome within the mitochondria. Experiments with dideoxycytidine revealed that 10-fold decrease of the mtDNA copy number resulted in almost normal activity of cytochrome c oxidase. We found that mtDNA depletion is compensated mostly on the level of RNA metabolism in the mitochondria. Thus, our results are in agreement with the hypothesis that transcription initiation rather than mtDNA copy number is a rate limiting factor for expression of the mitochondrial genome.
Źródło:
Acta Biochimica Polonica; 2006, 53, 3; 485-495
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagadnienie przyczynowości w badaniach biogenezy. W kierunku kwantowej logiki życia
The Problem of Causality in the Biogenesis Research: Towards a Quantum Logic of Life
Autorzy:
Wnuk, Marian
Powiązania:
https://bibliotekanauki.pl/articles/2013191.pdf
Data publikacji:
2008
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
przyczynowość
biogeneza
biosystemy kwantowe
logiki nieklasyczne
causality
biogenesis
quantum biosystems
non-classical logics
Opis:
The problem of causality is presented in the context of the research devoted to biogenesis. The significant works concerning the philosophy of biogenesis and scientific theories of abiogenesis have been reviewed. Special attention is paid to: (i) the role of the non-equilibrium thermodynamics and quantum mechanics in the explaining of causal relations involved the origins of life, (ii) the need of constructing of a quantum logic of life. It is suggested that the causal connection is established by an information channel between a cause and its result.
Źródło:
Roczniki Filozoficzne; 2008, 56, 1; 329-353
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowożytne przemiany idei samorództwa
Modern Transformations of the Idea of Autogeny
Autorzy:
Świeżyński, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2013051.pdf
Data publikacji:
2009
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
biogeneza
samorództwo
mechanicyzm
witalizm
mikroorganizmy
biogenesis
autogeny
mechanicism
vitalism
microorganisms
Opis:
Autogeny, sometimes also called “naïve”, spontaneous generation (Lat. generatio spontanea) is – most generally speaking – a view, according to which living creatures come into being spontaneously and voluntarily from inanimate matter. Such a broad formulation of the idea of autogeny, however, does not show significant differences that occur in understanding it. The basis for these differences is constituted by different definitions of what should be considered inanimate matter, and what – animate matter. A thorough consideration of the arguments that have been offered in the history of research into the nature in order to justify the idea of autogeny, and an investigation into the modern debates and controversies concerning this idea allow discovering a variety of interpretations of the view of a spontaneous and voluntary origin of biological organisms. The variety was formed together with the development of the scientific empirical method and with the participation of philosophical concepts explaining the way the animate world functions. With time, the idea of a spontaneous origin of organisms underwent many transformations, first consisting in limiting the range of its application (from macroscopic organisms with complex structure to relatively simple microorganisms), then in a change in its understanding, and finally to questioning the very idea. Also the way changed, in which the possibility of the occurrence of autogeny in the nature was motivated. However, it seems that the very core of the idea of autogeny, which contains a general thought about transformation of matter leading to the origin of living organisms is still maintained in the contemporary natural science.
Źródło:
Roczniki Filozoficzne; 2009, 57, 1; 195-229
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Animal Dicer and plant Dicer-like proteins
Autorzy:
Tworak, A.
Urbanowicz, A.
Podkowinski, J.
Figlerowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/80710.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
eukaryotic organism
RNA molecule
double stranded RNA
Dicer-like protein
biogenesis
Drosophila melanogaster
microRNA
small interfering RNA
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of TSA technique in localization of snRNP-rich cytoplasmic bodies
Autorzy:
Hyjek, M.
Wojciechowska, N.
Kolowerzo, A.
Smolinski, D.J.
Powiązania:
https://bibliotekanauki.pl/articles/80402.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
RNA maturation
eukaryotic cell
biogenesis
TSA technique
microsporocyte
catalytic activity
horseradish 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
Tytuł:
Biogenesis of cucumber cotyledon chloroplasts under chilling stress
Autorzy:
Skupien, J.
Rudowska, L.
Mazur, R.
Gieczewska, K.
Mostowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/80285.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
abiotic stress
biogenesis
cotyledon
chloroplast
chilling stress
thylakoid membrane
cucumber
Cucumis sativus
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:
Comprehensive studies on biogenesis and function of tRNA-derived small noncoding RNAs in Arabidopsis thaliana
Autorzy:
Plewka, P.
Kalak, M.
Raczynska, K.D.
Szymanski, M.
Szweykowska-Kulinska, Z.
Jarmolowski, A.
Karlowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/80052.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
biogenesis
molecular mechanism
small RNA
gene expression
plant growth regulation
environmental stress
microRNA
siRNA
non-coding RNA
Arabidopsis thaliana
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:
Functional conservation between yeast and plant mitochondrial m-AAA proteases
Autorzy:
Skibior, R.
Kolodziejczak, M.
Janska, H.
Powiązania:
https://bibliotekanauki.pl/articles/80313.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
FtsH protease
bifunctional enzyme
ATPase
plant mitochondrion
yeast
AAA protease
Arabidopsis
ribosomal subunit
immunoblotting
biogenesis
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 temperature-regulated expression of microRNAs in barley
Autorzy:
Kruszka, K.
Swida-Barteczka, A.
Pacak, A.
Karlowski, W.
Jarmolowski, A.
Szweykowska-Kulinska, Z.
Powiązania:
https://bibliotekanauki.pl/articles/80830.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
small RNA
microRNA
gene expression
high temperature
barley
biogenesis
stress condition
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:
Introns of plant pri-miRNAs enhance miRNA biogenesis
Autorzy:
Bielewicz, D.
Kalak, M.
Kalyna, M.
Windels, D.
Barta, A.
Vazquez, F.
Szweykowska-Kulinska, Z.
Jarmolowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/80799.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
microRNA
biogenesis
small RNA
gene expression
environment condition
intron
protein-coding gene
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:
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
Wyświetlanie 1-15 z 29

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