ABA-binding proteins was detected in cyanobacteria (Synechocystis sp. PCC 6803)

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This article dedicates the study concerning evolution of the hormonal system of plants, in particular, detection of components of the regulatory system of abscisic acid (ABA) in cyanobacteria, which are considered as the precursors of the chloroplasts. ABA-binding proteins with molecular masses of 23, 50, 60 and 67 kDa were isolated using affinity chromatography on Sepharose conjugated with ABA from the lysate of cyanobacteria Synechocystis sp. PCC 6803. Interaction of isolated proteins with idiotypic antibodies to the ABA was shown. Total transcription in transcription system of cyanobacteria was activated by this ABA-binding proteins in vitro. This suggests, that some elements of the hormonal system of plants, which are associated with the ABA, was transfered from cyanobacterias to the eukaryotic cell.

Sobre autores

G Shevchenko

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

N Karavaiko

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

A Demidenko

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

S Selivankina

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

N Zubkova

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

E Kupriyanova

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

D Los

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

V Kuznetsov

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

O Kulaeva

Timirjazev Institute of Plant Physiology, Russian Academy of Science

Timirjazev Institute of Plant Physiology, Russian Academy of Science

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