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Plant Growth-Promoting Endophytic Bacteria Isolated from Miscanthus giganteus and Their Antifungal Activity

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    SYSNO ASEP0580031
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitlePlant Growth-Promoting Endophytic Bacteria Isolated from Miscanthus giganteus and Their Antifungal Activity
    Author(s) Lovecká, P. (CZ)
    KroneislovÁ, G. (CZ)
    Novotná, Z. (CZ)
    Roderová, Jana (MBU-M)
    Demnerová, K. (CZ)
    Article number2710
    Source TitleMicroorganisms. - : MDPI
    Roč. 11, č. 11 (2023)
    Number of pages14 s.
    Languageeng - English
    CountryCH - Switzerland
    Keywordsgenomic analysis ; rhizosphere ; assay ; ACC deaminase ; phosphorus solubilization ; phytohormone ; siderophore
    OECD categoryMicrobiology
    Method of publishingOpen access
    Institutional supportMBU-M - RVO:61388971
    UT WOS001122806200001
    EID SCOPUS85178137389
    DOI10.3390/microorganisms11112710
    AnnotationModern technologies can satisfy human needs only with the use of large quantities of fertilizers and pesticides that are harmful to the environment. For this reason, it is possible to develop new technologies for sustainable agriculture. The process could be carried out by using endophytic microorganisms with a (possible) positive effect on plant vitality. Bacterial endophytes have been reported as plant growth promoters in several kinds of plants under normal and stressful conditions. In this study, isolates of bacterial endophytes from the roots and leaves of Miscanthus giganteus plants were tested for the presence of plant growth-promoting properties and their ability to inhibit pathogens of fungal origin. Selected bacterial isolates were able to solubilize inorganic phosphorus, fix nitrogen, and produce phytohormones, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, and siderophore. Leaf bacterial isolate Pantoea ananat is 50 OL 2 had high production of siderophores (zone >= 5 mm), and limited phytohormone production, and was the only one to show ACC deaminase activity. The root bacterial isolate of Pseudomonas libanensis 5 OK 7A showed the best results in phytohormone production (N6-(Delta 2-isopentenyl)adenine and indole-3-acetic acid, 11.7 and 12.6 ng center dot mL(-1), respectively). Four fungal cultures-Fusarium sporotrichioides DBM 4330, Sclerotinia sclerotiorum SS-1, Botrytis cinerea DS 90 and Sphaerodes fimicola DS 93-were used to test the antifungal activity of selected bacterial isolates. These fungal cultures represent pathogenic families, especially for crops. All selected root endophyte isolates inhibited the pathogenic growth of all tested fungi with inhibition percentages ranging from 30 to 60%. Antifungal activity was also tested in two forms of immobilization of selected bacterial isolates: one in agar and the other on dextrin-coated cellulose carriers. These results demonstrated that the endophytic Pseudomonas sp. could be used as biofertilizers for crops.
    WorkplaceInstitute of Microbiology
    ContactEliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231
    Year of Publishing2024
    Electronic addresshttps://www.mdpi.com/2076-2607/11/11/2710
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