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Dual Mode of the Saponin Aescin in Plant Protection: Antifungal Agent and Plant Defense Elicitor

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F19%3A43918539" target="_blank" >RIV/60461373:22330/19:43918539 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389030:_____/19:00512060 RIV/61989592:15310/19:73596501 RIV/25328859:_____/19:N0000013 RIV/60461373:22340/19:43918539

  • Result on the web

    <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6893899/pdf/fpls-10-01448.pdf" target="_blank" >https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6893899/pdf/fpls-10-01448.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3389/fpls.2019.01448" target="_blank" >10.3389/fpls.2019.01448</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Dual Mode of the Saponin Aescin in Plant Protection: Antifungal Agent and Plant Defense Elicitor

  • Original language description

    Being natural plant antimicrobials, saponins have potential for use as biopesticides. Nevertheless, their activity in plant-pathogen interaction is poorly understood. We performed a comparative study of saponins&apos; antifungal activities on important crop pathogens based on their effective dose (EC50) values. Among those saponins tested, aescin showed itself to be the strongest antifungal agent. The antifungal effect of aescin could be reversed by ergosterol, thus suggesting that aescin interferes with fungal sterols. We tested the effect of aescin on plant-pathogen interaction in two different pathosystems: Brassica napus versus (fungus) Leptosphaeria maculans and Arabidopsis thaliana versus (bacterium) Pseudomonas syringae pv tomato DC3000 (Pst DC3000). We analyzed resistance assays, defense gene transcription, phytohormonal production, and reactive oxygen species production. Aescin activated B. napus defense through induction of the salicylic acid pathway and oxidative burst. This defense response led finally to highly efficient plant protection against L. maculans that was comparable to the effect of fungicides. Aescin also inhibited colonization of A. thaliana by Pst DC3000, the effect being based on active elicitation of salicylic acid (SA)-dependent immune mechanisms and without any direct antibacterial effect detected. Therefore, this study brings the first report on the ability of saponins to trigger plant immune responses. Taken together, aescin in addition to its antifungal properties activates plant immunity in two different plant species and provides SA-dependent resistance against both fungal and bacterial pathogens.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10611 - Plant sciences, botany

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Frontiers in Plant Science

  • ISSN

    1664-462X

  • e-ISSN

  • Volume of the periodical

    10

  • Issue of the periodical within the volume

    1448

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    10

  • Pages from-to

    1-10

  • UT code for WoS article

    000505261700001

  • EID of the result in the Scopus database

    2-s2.0-85076921864