The Pseudomonas syringae pv. syringae phytotoxins syringomycin-E and syringopeptins 22-A and 25-A reversibly and noncompetitively inhibit purified H+-ATPase solubilized from plasma membrane of maize roots. Moreover, they increase the passive permeability to protons in phosphatidylcholine/phosphatidylethanolamine liposomes. Both effects are mole pronounced with syringopeptins than with syringomycin-E. Activity on phospholipid bilayers is detectable at phytotoxin concentrations not affecting H+-ATPase activity. (C) 1995 Academic Press. Inc.
Camoni, L., Di Giorgio, D., Marra, M., Aducci, P., Ballio, A. (1995). Pseudomonas syringae pv. syringae phytotoxins reversibly inhibit the plasma membrane H+-ATPase and disrupt unilamellar liposomes. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 214(1), 118-124 [10.1006/bbrc.1995.2264].
Pseudomonas syringae pv. syringae phytotoxins reversibly inhibit the plasma membrane H+-ATPase and disrupt unilamellar liposomes
CAMONI, LORENZO;MARRA, MAURO;ADUCCI, PATRIZIA;
1995-09-05
Abstract
The Pseudomonas syringae pv. syringae phytotoxins syringomycin-E and syringopeptins 22-A and 25-A reversibly and noncompetitively inhibit purified H+-ATPase solubilized from plasma membrane of maize roots. Moreover, they increase the passive permeability to protons in phosphatidylcholine/phosphatidylethanolamine liposomes. Both effects are mole pronounced with syringopeptins than with syringomycin-E. Activity on phospholipid bilayers is detectable at phytotoxin concentrations not affecting H+-ATPase activity. (C) 1995 Academic Press. Inc.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
