Effect of Salicylic Acid on Protein Composition of Tatar Buckwheat Fagopyrum tataricum Calluses with Different Ability for Morphogenesis

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N. N. Maksyutova^*, E. I. Galeeva, N. I. Rumyantseva, and L. V. Viktorova

Kazan Institute of Biochemistry and Biophysics, Kazan Scientific Center of the Russian Academy of Sciences, ul. Lobachevskogo 2/31, 420111 Kazan, Russia; fax: (8-8432) 38-7577; E-mail: maksyutova@yandex.ru

^* To whom correspondence should be addressed.

Received March 26, 2004; Revision received June 22, 2004

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The effect of salicylic acid on the content of soluble proteins and individual polypeptides in Tatar buckwheat Fagopyrum tataricum calluses differing in ability for morphogenesis was studied. Changes in the protein composition of the calluses cultivated in the dark and in the light indicated the higher sensitivity of the non-morphogenic callus. Different response of callus cultures to salicylic acid and conditions of cultivation (light, darkness) is suggested to be associated with the antioxidant defense system, which is, in particular, characterized by the hydrogen peroxide content in the calluses. Salicylic acid increased the H₂O₂ content in non-morphogenic calluses more strongly than in morphogenic calluses, and the difference was more significant for the calluses cultivated in the light.

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KEY WORDS: Fagopyrum tataricum, buckwheat callus, salicylic acid, hydrogen peroxide

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