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Literature summary for 7.1.2.1 extracted from

  • Morgan, S.; Maity, P.; Geilfus, C.; Lindberg, S.; Mühling, K.
    Leaf ion homeostasis and plasma membrane H+-ATPase activity in Vicia faba change after extra calcium and potassium supply under salinity (2014), Plant Physiol. Biochem., 82, 244-253.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
K2SO4 in plants grown with 10 mM K2SO4 plus 100 mM NaCl supply, activity decreases competitively with Na+, after 21 d of salinity, with different effects on Km and Vmax Vicia faba

Metals/Ions

Metals/Ions Comment Organism Structure
CaSO4 in plants grown with 5 mM CaSO4 supply, Vmax of plasma membrane ATPase increases Vicia faba
NaCl in plants grown with 100 mM NaCl supply, ATPase activity increases with salinity in a non-competitive way for 7 d and 21 d. In plants grown with 10 mM K2SO4 plus 100 mM NaCl supply, activity decreases competitively with Na+, after 21 d of salinity, with different effects on Km and Vmax Vicia faba

Organism

Organism UniProt Comment Textmining
Vicia faba
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Vicia faba
-

General Information

General Information Comment Organism
physiological function plasma membrane activity largely increases in Ca2+-treated plants. Higher ATPase activity is related with apoplast acidification, cytosol alkalinization and low cytosolic [Na+], and may explain why extra calcium improves shoot and leaf growth Vicia faba