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001-es BibID:	BIBFORM007815
Első szerző:	Solti Ádám
Cím:	Alleviation of CD induced inhibition of photosynthesis under long-term CD treatment in poplar / Ádám Solti, Péter Szegi, Brigitta Basa, Ilona Mészáros, Éva Sárvári
Dátum:	2008
Megjegyzések:	Cadmium is very toxic for all living organisms, including plants due, among others, to the inhibition of photosynthesis and the Cd induced oxidative stress. In spite of many experiences exact molecular mechanism of Cd action and Cd inducible defence processes are not known. Therefore, we followed changes in photosynthesis under long-term Cd treatment to clarify when defence mechanisms appear and how plants acclimate to Cd stress at available Cd concentration. Experiments were performed on hydroponically cultured four-leaf poplar plants treated with 10 mM Cd(NO3)2. Leaves, developed during the first week of treatment, have been monitored for three weeks. In the first week, all investigated physiological or structural parameters showed a strong decay ? including chlorophyll content, chlorophyll a/b ratio, actual photosynthetic efficiency (DF/Fm'), carbon assimilation and defence mechanisms, while malondialdehyde content increased. In the following treatment period, however, an improvement of the values of all these parameters could be observed. Malondialdehyde content decreased strictly anti-parallel to the increased ascorbate peroxidase activity. However, no rise was found in the level of carbon assimilation.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban heavy metal cadmium photosynthesis poplar fluorescence induction ascorbate peroxidase
Megjelenés:	Cereal Research Communications. - 36 (2008), p. 239-242. -
További szerzők:	Szegi Péter Basa Brigitta Mészáros Ilona (1952-) (biológus) Sárvári Éva
Internet cím:	elektronikus változat
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