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Wyszukujesz frazę "mesophyll" wg kryterium: Temat


Wyświetlanie 1-10 z 10
Tytuł:
Adaptive characteristics of plants in the conditions of technogenic pollution
Autorzy:
Akhtaeva, Nursulu
Boribay, Elmira
Nurmakhanova, Akmaral
Tynybekov, Bekzat
Moldagazyyeva, Zhanar
Powiązania:
https://bibliotekanauki.pl/articles/2174318.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
anatomical structure
contaminated area
mesophyll
soil
technogenic radionuclides
Opis:
The article deals with the problems of induction of the anatomical and morphological structure of plants of different life forms under the conditions of a long-term chronic action of ionising radiation on the territory of the Northern nuclear power plant. Currently, the study and assessment of the radioecological situation on the territory of the former Semipalatinsk nuclear test site, taking into account the ecological state of natural plant and animal populations, is of particular importance. The study of the reaction of living organisms, be it plants or animals, to different doses of chronic ionising radiation makes it possible to assess and diagnose the state of environmental quality, and these organisms themselves can serve as bioindicators of pollution. On the territory of the Semipalatinsk test site, at the experimental site “Balapan”, 3 sections with meadow type of soil were studied: polluted section no. 1 - the north-western shore of Lake Chagan, polluted section no. 2 - the north-eastern shore of Lake Chagan, and control section no. 3. For structural analysis, the study recorded the vegetative organs of plant species with an increased radiation background. It was found that when the EDR (exposure dose rate) of gamma radiation increases and the plant growth is stimulated. In the conditions of radioactive contamination, with an increase in the activity of alpha, beta and gamma radiation, plants response and changes occur in the internal structure of their vegetative organs. Such adaptive features arise under the influence of a complex of environmental factors, including radiation pollution.
Źródło:
Journal of Water and Land Development; 2022, 55; 251--258
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stabilization of actin filaments with phalloidin has no influence on chloroplast movement in Arabidopsis mesophyll cells
Autorzy:
Krzeszowiec, W.
Jagiello-Flasinska, D.
Gabrys, H.
Powiązania:
https://bibliotekanauki.pl/articles/79834.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
actin cytoskeleton
chloroplast
angiosperm
Arabidopsis thaliana
mesophyll cell
actin filament
phalloidin
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:
Determination of an optimal isolation and culture conditions of grass pea protoplasts
Autorzy:
Piwowarczyk, B.
Pindel, A.
Powiązania:
https://bibliotekanauki.pl/articles/80826.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
grass pea
Lathyrus sativus
Derek cultivar
culture condition
chitosan
mesophyll
protoplast isolation
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural organization of photosynthetic apparatus in mesophyll and bundle sheath chloroplasts of C4 plants of NADP-ME subtype
Autorzy:
Buczynska, A.
Wasilewska, W.
Drozak, A.
Romanowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/80550.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
structural organization
photosynthetic apparatus
mesophyll
bundle sheath
chloroplast
photosynthesis
thylakoid
grass
immunoblotting
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:
Influence of lead (Pb2plus) on chloroplast distribution patterns in Lemna trisulca L. mesophyll cells in darkness
Autorzy:
Samardakiewicz, S.
Suski, S.
Gabrys, H.
Wozny, A.
Powiązania:
https://bibliotekanauki.pl/articles/79815.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
lead
heavy metal pollution
chloroplast
mesophyll cell
Lemna trisulca
darkness
X-ray microanalysis
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:
Comparative analysis of biochemical properties of mesophyll and bundle sheath chloroplasts from various subtypes of C4 plants grown at moderate irradiance
Autorzy:
Romanowska, Elżbieta
Drożak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1041162.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
bundle sheath
chloroplast
C_4 subtypes
PSI and PSII activity
chlorophylli-protein complex
mesophyll
Opis:
The photochemical characteristics of mesophyll and bundle sheath chloroplasts isolated from the leaves of C4 species were investigated in Zea mays (NADP-ME type), Panicum miliaceum (NAD-ME type) and Panicum maximum (PEP-CK type) plants. The aim of this work was to gain information about selected photochemical properties of mesophyll and bundle sheath chloroplasts isolated from C4 plants grown in the same moderate light conditions. Enzymatic as well as mechanical methods were applied for the isolation of bundle sheath chloroplasts. In the case of Z. mays and P. maximum the enzymatic isolation resulted in the loss of some thylakoid polypeptides. It was found that the PSI and PSII activities of mesophyll and bundle sheath chloroplasts of all species studied differed significantly and the differences correlated with the composition of pigment-protein complexes, photophosphorylation efficiency and fluorescence emission characteristic of these chloroplasts. This is the first report showing differences in the photochemical activities between mesophyll chloroplasts of C4 subtypes. Our results also demonstrate that mesophyll and bundle sheath chloroplasts of C4 plants grown in identical light conditions differ significantly with respect to the activity of main thylakoid complexes, suggesting a role of factor(s) other than light in the development of photochemical activity in C4 subtypes.
Źródło:
Acta Biochimica Polonica; 2006, 53, 4; 709-719
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dedifferentiation of Arabidopsis thaliana cells is accompanied by large decrease of RNA polymerase II transcription
Autorzy:
Delenko, K.
Niedojadlo, J.
Labedzka, A.
Bednarska-Kozakiewicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/80652.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Arabidopsis thaliana
dedifferentiation
RNA polymerase II
cell wall
plant
mesophyll cell
heterochromatin
monoclonal antibody
phosphoserine
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:
Ultrastructural changes in chloroplasts of mesophyll cells of chlorotic and prematurely yellowed leaves of Betula pendula Rothr.
Autorzy:
Przybyl, K
Idzikowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/58928.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant disease
premature yellowing
silver birch
Betula pendula
ultrastructural change
chloroplast
mesophyll cell
chlorosis
leaf
Opis:
The ultrastructure of chloroplasts was studied in mesophyll cells of the leaves of silver birch (Betula pendula) showing interveinal chlorosis or premature yellowing, in comparison with leaves without symptoms or exhibiting symptoms of natural senescence. The leaves were collected between May 26 to June 7 and additionally in the September 10-12 from the upper part of the crown, from increments of the past four years. No major difference in ultrastructure of chloroplasts was found between spongy and palisade mesophyll cells. The following senescencerelated changes were observed in chloroplasts of prematurely yellowed leaves and showing inteveinal chlorosis: reduced chloroplast size, degeneration of the membrane systems of thylakoids and increased electron density of plastoglobuli. The most electron dark globules (lipid droplets) were found together with starch grains in cells of spongy mesophyll of leaves showing interveinal chlorosis. Abnormal, spherical and rounded chloroplasts with electron-dark inside of thylakoids or the electron-dark stroma between thylakoids were found only in yellowed and chlorotic leaves in spring.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reactive oxygen and nitrogen species as products of polyamines catabolism in dark-induced senesence of barley leaves
Autorzy:
Sobieszczuk-Nowicka, E.
Zmienko, A.
Pietrowska-Borek, M.
Malecka, A.
Figlerowicz, M.
Legocka, J.
Powiązania:
https://bibliotekanauki.pl/articles/80006.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
hydrogen peroxide
nitrogen species
polyamine catabolism
dark-induced senescence
barley
leaf
oxidative stress
mesophyll cell
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:
High light induced accumulation of two isoforms of the CF1 α-subunit in mesophyll and bundle sheath chloroplasts of C4 plants
Autorzy:
Romanowska, Elżbieta
Powikrowska, Marta
Zienkiewicz, Maksymilian
Drożak, Anna
Pokorska, Berenika
Powiązania:
https://bibliotekanauki.pl/articles/1040835.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
bundle sheath
light intensity
C_4 subtypes
chloroplasts
CF_1 α-subunit isoforms
mesophyll
ATP synthase
Opis:
The effect of light irradiance on the amount of ATP synthase α-subunit in mesophyll (M) and bundle sheath (BS) chloroplasts of C4 species such as maize (Zea mays L., type NADP-ME), millet (Panicum miliaceum, type NAD-ME) and guinea grass (Panicum maximum, type PEP-CK) was investigated in plants grown under high, moderate and low light intensities equal to 800, 350 and 50 µmol photons m-2 s-1, respectively. The results demonstrate that α-subunit of ATP synthase in both M and BS chloroplasts is altered by light intensity, but differently in the investigated species. Moreover, we identified two isoforms of the CF1 α-subunit, called α and ά. The CF1 α-subunit was the major isoform and was present in all light conditions, whereas ά was the minor isoform in low light. A strong increase in the level of the ά-subunit in maize mesophyll and bundle sheath thylakoids was observed after 50 h of high light treatment. The α and ά-subunits from investigated C4 species displayed apparent molecular masses of 64 and 67 kDa, respectively, on SDS/PAGE. The presence of the ά-subunit of ATPase was confirmed in isolated CF1 complex, where it was recognized by antisera to the α-subunit. The N-terminal sequence of ά-subunit is nearly identical to that of α. Our results indicate that both isoforms coexist in M and BS chloroplasts during plant growth at all irradiances. We suggest the existence in M and BS chloroplasts of C4 plants of a mechanism(s) regulating the ATPase composition in response to light irradiance. Accumulation of the ά isoform may have a protective role under high light stress against over protonation of the thylakoid lumen and photooxidative damage of PSII.
Źródło:
Acta Biochimica Polonica; 2008, 55, 1; 175-182
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

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