Dynamics of accumulation of phenolic compounds in pea roots during interaction with symbiotic bacteria Rhizobium leguminosarum

• Published in: Russian journal of plant physiology Vol. 57; no. 2; pp. 253 - 259
• Main Authors: Rudikovskaya, E. G, Akimova, G. P, Fedorova, G. A, Sokolova, M. G, Dudareva, L. V, Rudikovskii, A. V
• Format: Journal Article
• Language: English
• Published: Dordrecht Dordrecht : SP MAIK Nauka/Interperiodica 01-03-2010; SP MAIK Nauka/Interperiodica
• Subjects: Biomedical and Life Sciences; flavonoids; Host plants; HPLC; Infection; Inoculation; Life Sciences; phenolic compounds; Pisum sativum; Plant Physiology; Plant Sciences; Research Papers; Rhizobium leguminosarum; Roots; symbiosis; phenolic compounds; flavonoids; Rhizobium leguminosarum; Pisum sativum; symbiosis; HPLC
• ISSN: 1021-4437; 1608-3407
• DOI: 10.1134/S1021443710020135

Investigation of the initial stages of infection of pea plants (Pisum sativum L., cv. Marat) with bacteria Rhizobium leguminosarum has demonstrated that interactions with the microsymbiont considerably influence the content and composition of phenolic compounds (PC) in the host plant. The changes were observed both in the total root content of PC and in the content of flavans. Concentrations of PC in various root zones were also different. The root regions featuring high content of PC in a day after inoculation had the lowest number of attached and penetrated bacteria. At the same time, in noninoculated plants, the distribution of PC in the root zones with various sensitivities to R. leguminosarum showed the opposite pattern.