Interactive effects of temperature and heavy metals (Cd, Pb) on the elongation growth in maize coleoptiles

Comptes rendus biologies
Renata KurtykaWaldemar Karcz

Abstract

The effect of Cd and Pb on endogenous and IAA-induced elongation growth and medium pH of maize coleoptile segments incubated at 20, 25 and 30 °C was studied. It was found that the elongation of coleoptile segments and proton extrusion increased with the temperature and reached its maximum at 30 °C. For Cd, the maximal inhibition of endogenous and IAA-induced growth as well as medium acidification of coleoptile segments was observed at 25 °C. Meanwhile, Pb, irrespective of the temperature, diminished the growth of the segments by ca. 20%, increasing the acidification of the incubation medium. It was also found that in contrast to Cd, Pb accumulation in maize coleoptile segments did not correlate with temperature. The results suggest that the toxic effect of Cd on elongation growth of coleoptile segments is connected with the decrease of the PM H(+)-ATPase activity and probably with Cd-induced high acivity of IAA oxidase, whereas the effect of Pb did not depend on activity of any of the enzymes.

References

Jun 17, 1998·Proceedings of the National Academy of Sciences of the United States of America·W M GrayM Estelle
Aug 1, 1992·Plant Physiology·D L Rayle, R E Cleland
Feb 2, 2002·Chemico-biological Interactions·Elvis NyarkoToshihide Fukuma
Jul 31, 2007·Journal of Plant Physiology·Katarzyna KabałaGrazyna Kłobus
Mar 17, 2010·Biological Trace Element Research·Lingyan HouHong Shen
Apr 8, 2010·Comptes rendus biologies·Alexandre Tromas, Catherine Perrot-Rechenmann
Feb 22, 2011·Comptes rendus biologies·Mostafa LamhamdiFouad Sayah
Mar 23, 2011·Archives of Environmental Contamination and Toxicology·Renata KurtykaWaldemar Karcz
Apr 5, 2011·General Physiology and Biophysics·Renata KurtykaWaldemar Karcz
Jun 8, 2011·Biological Trace Element Research·Muhammad Sajid Aqeel AhmadHumaira Firdous
Aug 19, 2014·Annals of Botany·Zbigniew BurdachWaldemar Karcz

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Citations

Jan 9, 2015·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Yanyan WangYan Feng
Mar 20, 2019·International Journal of Molecular Sciences·Gaozhong PuXiaxia Chen
Mar 25, 2020·International Journal of Molecular Sciences·Eugeniusz MałkowskiPaulina Zieleźnik-Rusinowska

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