Autor: Lorenc-Plucinska, G. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The effect of SO2 on sucrose efflux from source leaves of poplar
Wypływ sacharozy z liści topoli traktowanych SO2
Autorzy:: Lorenc-Plucinska, G.
Powiązania:: https://bibliotekanauki.pl/articles/41679.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: Populus deltoides
sucrose efflux
sulphite solution
leaf
poplar
Źródło:: Dendrobiology; 2000, 45
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Acclimation of poplar trees to heavy metals in polluted habitats: I. Carbohydrate metabolism in fine roots of Populus deltoides
Autorzy:: Lorenc-Plucinska, G
Stobrawa, K.
Powiązania:: https://bibliotekanauki.pl/articles/58719.pdf
Data publikacji:: 2005
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: glucose
fructokinase
fructose
glycolysis
glyceraldehyde 3-phosphate dehydrogenase
non-structural carbohydrate
carbohydrate
hexokinase
galactose
soluble carbohydrate
polluted habitat
root
poplar tree
stachyose
sucrose
starch
Populus deltoides
concentration
sugar
raffinose
glucose 6-phosphate dehydrogenase
heavy metal
Opis:: Concentrations of total nonstructural carbohydrates (TNC), soluble carbohydrates, starch, sucrose, glucose, fructose, raffinose, galactose, stachyose, mannitol and specific activities of soluble acid (AI) and neutral (NI) invertases, sucrose synthase (SuSy), hexokinase (HK), fructokinase (FK), glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and glucose 6-phosphate dehydrogenase (G6PDH) were analyzed in fine roots of Populus deltoides Bartr. ex Marsh growing at a polluted site (near copper smelters) and a control site (free from heavy pollution). Also chemical properties of the soil from both sites were assessed. In comparison with the control, fine roots from the polluted site contained greater concentrations of TNC, soluble sugars, starch and sucrose but less hexoses, so they had higher values of sucrolysis index (sucrose/hexoses). The activity of AI, NI and SuSy declined insignificantly, while specific activities of HK, FK, GAPDH and G6PDH were significantly inhibited. The results suggest that a long-term heavy metal stress leads to an accumulation of carbohydrates and altering activities of glycolysis and the oxidative pentose phosphate pathway in fine roots.
Źródło:: Acta Societatis Botanicorum Poloniae; 2005, 74, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Photochemical activity, photosynthetic pigments and carbohydrates in poplar leaves fumigated with sulphur dioxide
Autorzy:: Szadel, A
Lorenc-Plucinska, G.
Karolewski, P.
Matysiak, R.
Powiązania:: https://bibliotekanauki.pl/articles/41307.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: pigment
photosynthetic pigment
Populus deltoides
sugar
sulphur dioxide
carotenoid
carbohydrate
chlorophyll
leaf
poplar
Opis:: The purpose of this study was to assess the influence of SO2 on photosynthetic apparatus and the level of total nonstructural carbohydrates (TNC) in developing and mature leaves of poplar (Populus deltoides). Photosynthetic apparatus was evaluated on the basis of fluorescence parameters (Fv/Fm, OPSII, qP and Rfd) and photosynthetic pigments (chlorophylls and carotenoids). Cuttings of poplar were exposed to 0.25 ppm of SO2 at 25°C and 200-300 mmol m-2s-1 PAR for 6 hours daily during 5 days in a fumigation chamber. The fumigation did not produce any significant differences in fluorescence parameters in neither developing nor mature leaves. In some mature leaves the concentration of pigments increased under the influence of SO2. Soluble carbohydrates decreased significantly both in developing and mature leaves and this was accompanied with an increase in starch accumulation. We suggest that Populus deltoides is a species tolerant to sulphur dioxide and the used SO2 dosage did not significantly impair the light reactions of photosynthesis, but it disturbed the accumulation of starch and the utilization of soluble carbohydrates in plants exposed to SO2.
Źródło:: Dendrobiology; 2003, 49
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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