F. Jan et al., Protein and peroxidase changes in various root-cell fractions of two upland rice cultivars differing in Al tolerance, ENVIR EXP B, 46(2), 2001, pp. 141-146
The quantitative changes in proteins and peroxidases associated with Al tox
icity were investigated in various root-cell fractions of upland rice culti
vars that differ in Al tolerance. The impact of Al on growth of the Al-sens
itive rice cultivar IR45 was related to a marked reduction of protein conte
nt in cytoplasm and an increase in the covalently-bound cell wall fractions
. Regardless of cellular fractions, Al also induced peroxidase activities i
n IR45 indicating a root-damage response to Al. In contrast, the Al toleran
t rice cultivar BG35 maintained the content of cellular proteins and enzyme
activities under Al stress. (C) 2001 Elsevier Science B.V. All rights rese
rved.