EFFECT OF TEMPERATURE SHOCK ON THE DYNAMICS OF ABSCISIC-ACID AND WHEAT-GERM-AGGLUTININ ACCUMULATION IN WHEAT CELL-CULTURE

Abscisic acid (ABA) and lectin content was immunoassayed in wheat cell cultures affected by temperature stress. The elevated temperature (40 degrees C) resulted in a 7-fold increase in the level of ABA and a 10 -fold increase in that of lectin. The increase in the lectin content i n cells was preceded by ABA accumulation. It is suggested that this AB A increase induces the synthesis of lectin, which in addition to stres s proteins, play an important role in controlling mechanisms of plant adaptation to unfavourable environments.