Identification of representatives of the genus Persicaria Mill. according to morphological characteristics

Гудкова, А.А.; Chistyakova, Anastasia; Sorokina, A.A.; Kuznetsov, A.Yu.; Khromykh, E.G.

doi:10.29296/25419218-2019-01-02

Cited by 2 publications

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“…К подобным методам относится растровая электронная микроскопия (РЭМ), используемая, чаще всего, в физике, металлургии для исследования микроструктуры поверхности образца. Преимуществами РЭМ перед оптической микроскопией является повышение четкости изображения, глубины резкости, отсутствие пробоподготовки, негативно влияющей на микродиагностические структуры, а также возможность проведения микрорентгенструктурного анализа [1,2]. Метод РЭМ все чаще находит применение в медицине и фармации, информация по использованию РЭМ к анализу растительного сырья на настоящий момент ограничена [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionunclassified

Scanning Electron Microscopy in the Analysis of Species of the Genus Persicaria Mill

Гудкова

Chistyakova

Sinetskaya

et al. 2022

Razrabotka i registraciâ lekarstvennyh sredstv

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Introduction. Scanning electron microscopy acts as a promising method of analysis, allowing to describe in detail the identification features of closely related plant species, as well as to conduct micro-roentgenstructural analysis of the sample in the selected area with high accuracy. The method is used to study the morphology of the surface and express determination of the composition of elements in various fields (physics, materials science, medicine, however, the use of the method of scanning/raster electron microscopy for the analysis of plant raw materials in pharmacy is limited.Aim. The purpose of the study was to study species of the genus Persicaria Mill. using scanning electron microscopy.Materials and methods. The objects of study were the Persicaria maculosa S.F. Gray, Persicaria hydropiper (L.) Delarbre, Persicaria tomentósa (Schrank) E.P. Bicknell, Persicaria mínor (Huds.) Opiz, Persicaria amphibia (L.) Delarbre, Persicaria amphibia var. terrestris (Leyss.) Munshi & Javeid, harvested during flowering in the Voronezh region. The study of samples by scanning electron microscopy was carried out on an electron microscope JSM-6510LV (Center for Collective Use of Voronezh State University).Results and discussion. With the help of scanning electron microscopy, morphological and anatomical signs of leaf plates of six species of the genus Persicaria were investigated and new diagnostic signs were identified. As a result of micro-X-RAY analysis, the content of some elements (potassium, calcium and magnesium) was established in the objects of study.Conclusion. For the first time to analyze the surface morphology of the leaf plate of species of the genus Persicaria Mill. the method of scanning electron microscopy is used. The features of the stomatal apparatus, trichomes and glands on the leaves of the studied species of Persicaria are clarified. With the help of micro-roentgenstructural analysis it was found, that a greater amount of magnesium is typical for the leaves of Persicaria mínor, calcium – for the leaves of Persicaria hydropiper, and potassium – for the leaves of Persicaria maculosa.

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Section: Introductionunclassified

Scanning Electron Microscopy in the Analysis of Species of the Genus Persicaria Mill

Гудкова

Chistyakova

Sinetskaya

et al. 2022

Razrabotka i registraciâ lekarstvennyh sredstv

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<i>Persicaria lapathifólia</i>: Identification, Chemical Composition, Pharmacological Action, Prospects for Use in Medical Practice (Review)

Gudkova,

Chistyakova,

Kostyleva

et al. 2023

Razrabotka i registraciâ lekarstvennyh sredstv

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Introduction. Knotweed (curlytop knotweed (curly pea)) – Persicaria lapathifólia Delarbre belongs to the buckwheat family Polygonaceae Juss., the genus Persicaria Mill. For a long time, the Persicaria lapathifólia did not exist as a separate species since 1989, the sorrel-leaved mountaineer has become an independent species. This is an annual herbaceous plant, repeating the main features of the genus Persicaria, and, as the main differences, having larger leaves, most often whitish-green flowers collected in dense inflorescences, peduncles and perianth of which have a large number of yellowish glands and a specific sweet smell.Text. Purpose of the work was to study the possible prospects for using the Persicaria lapathifólia as an official species. Currently, the plant is not used in medical practice and is considered an admixture in the collection of pharmacopoeial species of the genus Persicaria Mill. The plant is unpretentious to environmental conditions, is a weed, growing in absolutely all climatic zones, which indicates a rich procurement base. Despite the morphological similarity of the mountaineer sorrel with other species of the genus Persicaria, there is a sufficient amount of information in the literature regarding the identification of the object obtained as a result of a comprehensive morphological and anatomical assessment by microscopic methods (stereomicroscopy, luminescent microscopy, classical anatomy, petiolar anatomy), which allows a high the degree of reliability to eliminate errors in the procurement of raw materials and their further use. The chemical composition of Persicaria lapathifólia is represented by various classes of biologically active compounds, among which the most interesting are phenolic compounds (flavonoids), represented mainly by glycosides of quercetin and kaempferol. In addition, the plant is rich in vitamins, being a source of choline, organic and essential amino acids. Taking into account the peculiarities of the component composition of the mountaineer sorrel, the plant is considered as a source of phytopreparations with hemostatic, capillary-protective, antitumor, anti-inflammatory, antifungal effects.Conclusion. As a result of the generalization of the data available in the literature, the prospects of Persicaria lapathifólia to be introduced as a medicinal plant material and medicinal plant substance for the production of herbal medicines along with Persicaria maculosa and Persicaria hydropiper herb were revealed.

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Identification of representatives of the genus Persicaria Mill. according to morphological characteristics

Cited by 2 publications

References 0 publications

Scanning Electron Microscopy in the Analysis of Species of the Genus Persicaria Mill

Scanning Electron Microscopy in the Analysis of Species of the Genus Persicaria Mill

<i>Persicaria lapathifólia</i>: Identification, Chemical Composition, Pharmacological Action, Prospects for Use in Medical Practice (Review)

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