ROLE OF HETEROTRIMERIC G-PROTEINS IN THE SIGNAL REGULATION OF LEGUME PLANTS AND SIMBIOTIC AND PATHOGENIC MICROORGANISMS INTERACTION

Original title

УЧАСТИЕ ГЕТЕРОТРИМЕРНЫХ G-БЕЛКОВ В СИГНАЛЬНОЙ РЕГУЛЯЦИИ ВЗАИМОДЕЙСТВИЯ РАСТЕНИЙ ГОРОХА С СИМБИОТИЧЕСКИМИ И ПАТОГЕННЫМИ МИКРООРГАНИЗМАМИ

Authors

I.V. Leppyanen, A.D. Bovin, E.A. Dolgikh

Contact information

Federal State Budget Scientific Institution All-Russian Research Institute for Agricultural Microbiology, St. Petersburg, Pushkin, Russia, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра., Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра., Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

Pages

462-465

DOI

10.31255/978-5-94797-319-8-462-465

Abstract

The receptor kinase PsLYK9 is necessary for the recognition of chitooligosaccharides (COs) with different degree of polymerization by pea plants. PsLYK9 performs a double function - when recognizing CO5 it controls the development of symbiosis with arbuscular mycorrhizal (AM) fungi, but at the same time it is able to control the development of defense reactions when recognizing chitin oligomers with a higher degree of polymerization (CO8). It remains far from understanding how the same receptor is able to distinguish molecules with similar structure, but causing completely opposite reactions in the plants. We assumed that the recognition of different structure of the COs occurs when PsLYK9 is combined with different co-receptors, which leads to the activation of different signaling cascades in pea. To search for signal regulators, a differential analysis of the proteomes of the Frisson pea roots treated with CO5 and CO8 was carried out. These studies are necessary to find out the molecular mechanisms by which plants distinguish the chitooligosaccharide signals coming from symbiotic or phytopathogenic microorganisms. As a result of the performed studies, several new regulators (β-subunit of G-protein, phospholipase C), which may be necessary for signal transmission in the course of symbiosis development or in the activation of defense reactions, were detected.