- 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
Artykuł