Effect of Jasmonic, Salicylic, and Abscisic Acids on [¹⁴C]Leucine Incorporation into Proteins of Pea Leaves

I. A. Tarchevsky^1*, N. N. Maksyutova², and V. G. Yakovleva²

¹Bach Institute of Biochemistry, Russian Academy of Sciences, Leninsky pr. 33, Moscow, 117071 Russia; fax: (095) 954-2732; E-mail: inbio@glas.apc.org

²Kazan Institute of Biochemistry and Biophysics, Russian Academy of Sciences, ul. Lobachevskogo 2/31, Kazan, 420503 Russia; fax: (8-8432) 38-7577; E-mail: maksyutova@sci.kcn.ru

^* To whom correspondence should be addressed.

Received March 27, 2000; Revision received August 25, 2000

---

All investigated exogenous phytohormones (jasmonic, salicylic, and abscisic acids) induced the appearance of ¹⁴C-label in a polypeptide with molecular mass 29 kD that was not found in the control; these acids also increased [¹⁴C]leucine incorporation into a 25-kD polypeptide and decreased such incorporation into a 45-kD polypeptide. This can be considered as a nonspecific response of the plants to the action of these hormones. Salicylic and abscisic (but not jasmonic) acids induced the synthesis of a 19-kD polypeptide, and jasmonate induced the synthesis of a 96-kD polypeptide.

---

KEY WORDS: protein synthesis, jasmonate, salicylate, abscisic acid, signal systems in plant cells, stress

---