Aleksandr V. Rudikovskii

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Molecular genetic and morphometric studies of the tall and dwarf forms of the Siberian crabapple, which grow on the territory of Buryatia, were carried out. A phylogenetic analysis based on six highly polymorphic microsatellite loci showed that the dwarf form descends from the tall forms of Malus baccata and both studied forms belong to the same species of(More)
It has been shown that crabapple dwarf forms descend from tall crabapple forms; this is confirmed by a comparative analysis of morphological traits, the ITS-1 sequence identity, and the occurrence of gene flows between the investigated forms. The assumption is made that dwarf formation is the initial stage of ecological speciation. High among-locus variance(More)
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(More)
Polymorphism of the main morphological characteristics of Siberian spruce (Picea obovata Ledeb.), which are used for diagnosing the species, as well as the population structure, was studied at the northern limits of the species habitat and compared with characteristics of spruce from the central regions of the area. The results obtained give an insight into(More)
The results of a comparative analysis of lipid and fatty acid composition in the roots, leaves, and fruits of dwarf and tall forms of Siberian crabapple (growing under different water supplies) are given in the study. It was detected that biochemical changes in the amount and quality of total lipids and phospholipids occur during adaptation to a decreased(More)
For the first time, we have studied the polyphenolic profile of fruits of Siberian crabapple and its hybrids (F1, F2, and F3) with domestic apple cultivated in East Siberia. It is shown that the chemical composition of polyphenolics of Siberian crabapple fruits is overwhelmingly characteristic of the genus Malus; on the other hand, it has clearly(More)
Natural populations of Malus baccata (L.) Borkh. occur in eastern Siberia and Primorsky Krai in addition to the Mongolian People’s Republic and northern China. The plant grows in river valleys, on islands, and on steppes and shrubsteppes. It is an exceptionally frost-resistant representative of the genus. The trees can withstand temperatures as low as(More)
A change in the contents of endogenous salicylic and jasmonic acids in the roots of the host plant at the preinfectious stage of interaction with symbiotic (Rhizobium leguminosarum) and pathogenic (Agrobacterium rizogenes) bacteria belonging for to the family Rhizobiaceae was studied. It was found that the jasmonic acid content increased 1.5–2 times 5 min(More)
It was shown that, in pea (Pisum sativum L.) roots, flavans are a dominating component of the soluble phenol fraction. In plants grown at low temperature (8°C), flavan content during the early growth phase was lower than in plants grown at 22°C, but later it increased and was by 40% higher than in plants grown at 22°C. Total phenol content in the two(More)
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