Journal of Stress Physiology & Biochemistry, Vol. 15 No. 2 2019, pp. 5-9 ISSN 1997-0838
Original Text Copyright (cc) 2019 by  Romanenko, Filinova and Lomovatskaya

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Ca2+-dependent adenylate cyclase of plant cells in bacterial pathogenesis

A.S. Romanenko, N.V. Filinova*, L.A. Lomovatskaya

 Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, 664033, Russia


Received March 5, 2019

This is the first study to detect the effect of calcium ions on the activity of transmembrane adenylate cyclase (tmAC), the key enzyme of the adenylate cyclase signaling system, under normal conditions and after a short-term exposure to exopolysaccharides (EPS) of the bacterial ring rot pathogen Clavibacter michiganensis ssp. sepedonicus (Cms). After the treatment of the roots of plants with the Cms EPS, the response to Ca2+ changed: the activity of the tmAC of plants of the resistant cultivar significantly increased, whereas in the cells of the susceptible cultivar it remained unchanged.

Key words:    Adenylate cyclase, Clavibacter michiganensis ssp. sepedonicus, calcium, potatoes

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