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О.l. Porohnyava О.l. - One of the best experts on this subject based on the ideXlab platform.

  • Морфогенез Cladrastis Kentukea (Dum.-Cours.) Rudd в умовах in vitro
    M.M. Gryshko National Botanical Garden of the NAS of Ukraine, 2013
    Co-Authors: Nebykov M.v., О.l. Porohnyava О.l.
    Abstract:

    The sterilization of plant material, selection and modification of nutrient mediums and peculiarities of microclonal breeding of the Cladrastis Kentukea (Dum.-Cours.) Rudd in vitro were investigated. The dependence of the explants morphogenesis from hormonal composition of nutrient mediums is considered.Досліджено стерилізацію рослинного матеріалу та особливості мікроклонального розмноження Cladrastis Kentukea (Dum.-Cours.) Rudd в умовах in vitro, підібрано живильне середовище. Встановлено залежність морфогенезу експлантів від гормонального складу живильного середовища

Порохнява, О. Л. - One of the best experts on this subject based on the ideXlab platform.

Nigel C Veitch - One of the best experts on this subject based on the ideXlab platform.

  • flavonol tetraglycosides and other constituents from leaves of styphnolobium japonicum leguminosae and related taxa
    Phytochemistry, 2007
    Co-Authors: Geoffrey C Kite, Charlotte A Stoneham, Nigel C Veitch
    Abstract:

    Abstract Two flavonol tetraglycosides comprising a trisaccharide at C-3 and a monosaccharide at C-7 were isolated from the leaves of Styphnolobium japonicum (L.) Schott and characterised as the 3- O -α-rhamnopyranosyl(1 → 2)[α-rhamnopyranosyl(1 → 6)]-β-glucopyranoside-7- O -α-rhamnopyranosides of quercetin and kaempferol. The 3- O -α-rhamnopyranosyl(1 → 2)[α-rhamnopyranosyl(1 → 6)]-β-galactopyranoside-7- O -α-rhamnopyranoside of kaempferol, the 3- O -α-rhamnopyranosyl(1 → 2)[α-rhamnopyranosyl(1 → 6)]-β-glucopyranosides of kaempferol and quercetin and the 3- O -α-rhamnopyranosyl(1 → 2)[α-rhamnopyranosyl(1 → 6)]-β-galactopyranoside of kaempferol were also obtained from this species for the first time. Some or all of these flavonol tetra- and triglycosides were detected in 17 of 18 specimens of S. japonicum examined from living and herbarium material, although the most abundant flavonoid in the leaves was generally quercetin 3- O -α-rhamnopyranosyl(1 → 6)-β-glucopyranoside (rutin). The triglycosides, but not the tetraglycosides, were detected in herbarium specimens of Styphnolobium burseroides M. Sousa, Rudd & Medrano and Styphnolobium monteviridis M. Sousa & Rudd, but specimens of Styphnolobium affine (Torrey & A. Gray) Walp. contained a different profile of flavonol glycosides. The flavonol tetra- and triglycosides of S. japonicum were also present in leaves of Cladrastis Kentukea (Dum. Cours.) Rudd, a representative of a genus placed close to Styphnolobium in current molecular phylogenies. An additional constituent obtained from leaves of Styphnolobium japonicum was identified as the maltol derivative, 3-hydroxy-2-methyl-4 H -pyran-4-one 3- O -(4′- O - p -coumaroyl-6′- O -(3-hydroxy-3-methylglutaroyl))-β-glucopyranoside.

Porokhniava Olga L. - One of the best experts on this subject based on the ideXlab platform.

  • The systematic position of the Cladrastis Rafin. genus: history of research, synonyms, place in modern phylogenetic systems
    Petrozavodsk State University, 2015
    Co-Authors: Porokhniava Olga L.
    Abstract:

    The aim of the research was to find out generic phylogeny, systematic position and synonyms of the Cladrastis Rafin. genus. The history of the study of legumes taxonomy and phylogenetic relationships have been considered. It was found that the systematic studies of the position of the Leguminosae Juss. (Fabaceae Lindl.) family were carried out by scientists on the basis of comparative morphology, anatomy, biochemistry, embryology and molecular data. Leguminosae belongs to the Fabales order and includes into the Rosids according to the modern taxonomy in accordace of the APG III (2009). According to the classification of R. M. Polhill (1994) genus Cladrastis belongs to the Sophora group Sophoreae tribe Papilionoideae subfamily Leguminosae family. Genus Cladrastis has close family connections with the Styphnolobium and Pickeringia genera. C. Kentukea has many synonyms, which were relevant in different historical periods. The correct and current, according to the rules of the International Code of the botanical nomenclature, is the name Cladrastis Kentukea (Dum. - Cours.) Rudd, established by V. E. Rudd in 1972

О.l. Porohnyava - One of the best experts on this subject based on the ideXlab platform.