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dc.creatorCvetic Antic, Tijana
dc.creatorJanošević, Dušica
dc.creatorGlamočlija, Jasmina
dc.creatorMitrović, Aleksandra Lj.
dc.date.accessioned2023-03-17T11:54:42Z
dc.date.available2023-03-17T11:54:42Z
dc.date.issued2022
dc.identifier.isbn978-86-912591-6-7 (SPPS)
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/1820
dc.description.abstractFungi and plants interact in different ways, creating a scale of associations. Hemibiotrophic fungi represent the most interesting group, as they use sequential biotrophic and necrotrophic infection strategies. The co-evolution of plant and fungal life-styles has not been well characterized. We present changes of enzymatic component of antioxidative system in succulent plant Tacitus bellus that specifically correspond to subsequent phases (spore germination, biotrophic phase, and necrotrophic phase) of hemibiotroph Fusarium verticillioides infection. T. bellus response to F. verticillioides spore germination was characterized by transient increase in catalase (CAT), but decrease in superoxide dismutase (SOD) and peroxidase (POD) activity. During biotrophic phase of F. verticillioides infection, when hyphae spread intercellularly in epidermal and mesophyll tissue, host antioxidative system was suppressed. The transition from biotrophic to necrotrophic phase (inter and intracellular colonization and sporulation) triggered the host plant cells to create a highly defensive environment: CAT, SOD and POD activities were significantly stimulated, slowing, or even currently arresting, colonization of T. bellus mesophyll cells. CAT, showing the most pronounced activity increase, could be suggested as the main enzyme responsible for slowing the progression of necrotrophic phase of F. verticillioides growth. However, contrary to host CAT and SOD which isoenzyme profile didn’t change, new highly acidic POD isoforms replaced the two mildly acidic isoforms, suggesting their specific role in slowing the progression of infection. Presented results add to knowledge of events and mechanisms related to hemibiotrophic fungi pathogenicity in succulent plants grown under high relative humidity, similar to conditions in greenhouse.sr
dc.language.isoensr
dc.publisherSerbian Plant Physiology Society Institute for Biological Research “Siniša Stanković” National Institute of Republic of Serbia, University of Belgrade Faculty of Biology, University of Belgradesr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2022/200053/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2022/200178/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2022/200007/RS//sr
dc.rightsopenAccesssr
dc.source4th International Conference on Plant Biology (23rd SPPS Meeting)sr
dc.subjectTacitus bellussr
dc.subjectFusarium verticillioidessr
dc.subjectantioxidative enzymessr
dc.titleEnzymatic component of antioxidative system in succulent plant Tacitus bellus as a response to hemibiotroph Fusarium verticillioides infection in vitrosr
dc.typeconferenceObjectsr
dc.rights.licenseARRsr
dc.citation.spage50
dc.identifier.fulltexthttp://rimsi.imsi.bg.ac.rs/bitstream/id/4673/bitstream_4673.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_rimsi_1820
dc.type.versionpublishedVersionsr


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