Phosphatidic acid production in chitosan-elicited tomato cells

RAHO, N.; RAMIREZ, L; GONORAZKY, A. G.; LAMATTINA L; TEN HAVE, A; LAXALT, A. M.

JOURNAL OF PLANT PHYSIOLOGY

ELSEVIER GMBH

Año: 2011 vol. 168 p. 534 - 539

0176-1617

Nitric oxide (NO) and the lipid second messenger phosphatidic acid (PA) are involved in plant defense responses during plant–pathogen interactions. NO has been shown to be involved in the induction of PA production in response to the pathogen associated molecular pattern (PAMP) xylanase in tomato cells. It was shown that NO is critical for PA production induced via phospholipase C (PLC) in concerted action with diacylglycerol kinase (DGK) but not for the xylanaseinduced PA via phospholipase D (PLD). In order to study whether this is a general phenomenon during PAMP perception or if it is particular for xylanase, we studied the effect of the PAMP chitosan in tomato cell suspensions