Abstract:
:Heavy water (D2O) has been used as a putative inhibitor of the plasma membrane H(+)-ATPase and the plasma membrane redox system. Concentrations above 50% D2O inhibited H+ secretion and the plasma membrane redox system of Zea mays L. roots. Inhibition of H+ secretion by vanadate was reduced in presence of D2O. The plasma membrane of roots was transiently depolarized after the addition of heavy water in concentrations above 5%. The repolarization of the plasma membrane that takes place while the H+ secretion is still reduced by heavy water indicates that, despite the overall inhibiting effect of D2O, the plant is still able to regulate the membrane potential.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Döring O,Böttger Mdoi
10.1016/0006-291x(92)91813-6subject
Has Abstractpub_date
1992-01-31 00:00:00pages
870-6issue
2eissn
0006-291Xissn
1090-2104pii
0006-291X(92)91813-6journal_volume
182pub_type
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