Saposhnikovia divaricata (Turcz.) Schischkin in the steppes of South-Eastern Transbaikalia

Banshchikova, E.A.; Vakhnina, I. L.; Zhelibo, T.V.

doi:10.14258/pbssm.2020018

bpssm

2020

DOI: 10.14258/pbssm.2020018

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Saposhnikovia divaricata (Turcz.) Schischkin in the steppes of South-Eastern Transbaikalia

E.A. Banshchikova¹,

I. L. Vakhnina²,

T.V. Zhelibo³

Abstract: The article presents the results of studying the coenopopulation of Saposhnikovia divaricata (Turcz.)Schischkin in the steppes of South-Eastern Transbaikalia. The species is subject to spontaneous destruction (massharvesting of root raw materials) throughout the central and southern part of the Trans-Baikal territory, which is why in2018 it was included in the list of flora objects listed in the Red Book of the region. During the expedition, the currentstate, density, and vitality of the coenopopulation were s… Show more

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Ecological and Cenotic Analysis of the Coenopopulations of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk. (Apiaceae) in the Republic of Buryatia

Elisafenko,

Kazakov,

Chimitov

et al. 2024

Contemp. Probl. Ecol.

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Ecological and Cenotic Analysis of the Coenopopulations of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk. (Apiaceae) in the Republic of Buryatia

Elisafenko,

Kazakov,

Chimitov

et al. 2024

Contemp. Probl. Ecol.

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Germination specifics and introduction into in vitro culture of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk.

Elisafenko,

Zheleznichenko,

Yugrina

et al. 2023

Izvestiâ vuzov. Prikladnaâ himiâ i biotehnologiâ

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The article examines the effect of storage conditions, mericarp processing, and germination conditions of the endemic Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk. on germination. The technological process of obtaining aseptic in vitro culture was perfected. Mericarps collected from introduced species in 2022 were examined. Explants were sterilized once or twice with 0.1% AgNO3 or 0.1% AgNO3, followed by the use of 10% Н2О2. The pericarp was removed from the sterilized mericarps, and seeds were germinated on a solid 1/2 Murashige and Skoog medium. Callus genesis was induced by culturing the true leaves of seedlings on a Murashige and Skoog medium supplemented with 2,4-dichlorophenoxyacetic acid (10 μM) and 6-benzylaminopurine (0–5 μM) in the dark. The seeds of S. divaricata exhibit shallow dormancy, and the most favorable conditions for their germination are stratification for 30 days at 4 °С or the scarification of mericarps and germination in an environmental chamber (photoperiod of 16.5 h and a daytime temperature of 27 °С with its slight decrease at night). Laboratory germination capacity reaches 94%. The absence of whole seeds at the end of the experiment suggests a small soil seed bank, which accounts for the vulnerability of natural populations along with monocarpy. The in vitro culture of S. divaricata was obtained. Pericarp removal from mericarps was shown to accelerate germination and improve germination capacity while significantly reducing contamination. A callus was formed on leaf petioles in 66% of explants on an auxin medium, while on a medium with auxin and cytokinin, it was formed across the entire surface of the leaf blade in 72% of explants. Further callus development occurred only on the auxin medium.

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Ontogenetic features of <I>Saposhnikovia divaricate</I> (Turcz.) Schischk. introduced into the environments of the Cis-Baikal Region

Khudonogova,

Polovinkina

2024

Trudy po prikladnoy botanike, genetike i selektsii

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Background. Saposhnikovia (Saposhnikovia Schischk.) is a monotypic genus occurring in the south of Eastern Siberia, the Far East, Mongolia, Manchuria, and Korea. Saposhnikovia divaricata (Turcz.) Schischk. grows in Baikal Siberia and Transbaikalia, but does not occur in the Cis-Baikal Region. Roots, grass and fruits of S. divaricata are used in Oriental medicine as an anti-inflammatory and antipyretic agent. The species is promising for introduction into domestic medical practice. Currently, its area of distribution is rapidly shrinking due to the uncontrolled collection of roots for medicinal purposes. Plant introduction studies can solve the problem of sustainable utilization and conservation of the species.Materials and methods. Ontogenetic features of S. divaricata were studied in the experimental field of Irkutsk State Agrarian University for three years. The age composition of the species was analyzed according to T. A. Rabotnov’s methodology, taking into account the publications by L. B. Zaugolnova with coauthors and E. L. Nukhimovsky.Results and conclusions. S. divaricata is an aboveground two-seeded semi-deciduous plant; its seed germination rate is 87– 90% in the laboratory, and 85–88% in the field. Its plants in the first year of their life pass through the stages of the pregenerative period and proceed into the winter season in a virginal state. About 6% of the plants enter the generative state in the second year of life, and all the rest do it in the third year. The highest root weight was recorded in virginal plants in their second year of life (12.48 g). S. divaricata is a species of mediocre prospects for introduction into the environments of the Cis-Baikal Region.

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Saposhnikovia divaricata (Turcz.) Schischkin in the steppes of South-Eastern Transbaikalia

Cited by 5 publications

References 0 publications

Ecological and Cenotic Analysis of the Coenopopulations of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk. (Apiaceae) in the Republic of Buryatia

Ecological and Cenotic Analysis of the Coenopopulations of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk. (Apiaceae) in the Republic of Buryatia

Germination specifics and introduction into in vitro culture of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk.

Ontogenetic features of <I>Saposhnikovia divaricate</I> (Turcz.) Schischk. introduced into the environments of the Cis-Baikal Region

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