Determination of Biocontrol Potentials of Endophytic Bacteria in Biological Control of Citrus Sour Rot Disease Caused by Geotrichum citri-aurantii

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dc.authoridSoylu, Emine Mine/0000-0001-5961-0848
dc.authoridKara Oguz, Merve/0000-0001-7320-3376
dc.authoridSOYLU, Soner/0000-0003-1002-8958
dc.contributor.authorSoylu, Soner
dc.contributor.authorKara, Merve
dc.contributor.authorSoylu, Emine Mine
dc.contributor.authorUysal, Aysun
dc.contributor.authorKurt, Sener
dc.date.accessioned2024-09-18T20:11:28Z
dc.date.available2024-09-18T20:11:28Z
dc.date.issued2022
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractCitrus fruits are susceptible to postharvest decays caused by various pathogenic fungal disease agents. Citrus sour rot, caused by Geotrichum cirri-aurantii is one of the most important postharvest diseases of citrus fruits Although synthetic fungicides are commonly used to combat the disease, ineffectiveness of these applications as well as their harmful effects on human health and the environment have been reported in many studies recently. Biological control of postharvest diseases utilizing antagonistic bacteria has been explored in different host plant-pathogen interactions as a promising alternative to synthetic fungicides. In this study, biocontrol potentials of endophytic bacterial isolates, obtained from fruits, branch and leaves of healthy citrus trees, were investigated against Geotrichum citri-aurantii on petri plates (in vitro) and fruit tests (semi in vivo conditions). Among the 24 putative endophytic bacterial isolates isolated, sixteen different antagonist bacterial isolates were selected and assessed against mycelial growth inhibition of G. citri-aurantii in vitro studies. Among the bacterial isolates tested, Bacillus spp. isolates significantly inhibited mycelial growth of fungal agent by 59.5-78.6%. The highest mycelial growth inhibition was caused by B. subtilis CM8 (78.6%). Bacterial isolates of Acinetobacter johnsonii CT7, Erwinia herbicola CM5, Pseudomonas putida CL2, Pantoea agglomerans CM14, Acinetobacter lwoffii CP1 and Stenofrophomonas maltophilia CP3 failed to inhibit mycelial growth in dual culture assays. Antagonistic activities of bacterial isolates increased by the pre-incubation time before fungal inoculation. Bacterial isolates of Bacillus spp. caused considerably morphological changes such as vacuolation, shrivelling, swelling and lysis of hyphae close to inhibition zone. On artificially inoculated fruits, isolates of Bacillus spp. also found to suppressed disease incidence significantly by 56.7-83.3%. Due to strong antagonistic activities, isolates of Bacillus spp, tested in this study have the potential to be used as biofungicide for controlling post-harvest disease agent(s) of citrus fruits.en_US
dc.identifier.doi10.33462/jotaf.944704
dc.identifier.endpage191en_US
dc.identifier.issn1302-7050
dc.identifier.issn2146-5894
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85131384621en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage177en_US
dc.identifier.trdizinid1152317en_US
dc.identifier.urihttps://doi.org/10.33462/jotaf.944704
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1152317
dc.identifier.urihttps://hdl.handle.net/20.500.12483/8878
dc.identifier.volume19en_US
dc.identifier.wosWOS:000795484100017en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isotren_US
dc.publisherUniv Namik Kemalen_US
dc.relation.ispartofJournal of Tekirdag Agriculture Faculty-Tekirdag Ziraat Fakultesi Dergisien_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCitrusen_US
dc.subjectSour roten_US
dc.subjectGeotrichum citri aurantiien_US
dc.subjectAntagonisten_US
dc.subjectBiological controlen_US
dc.subjectEndophytic bacteriaen_US
dc.titleDetermination of Biocontrol Potentials of Endophytic Bacteria in Biological Control of Citrus Sour Rot Disease Caused by Geotrichum citri-aurantiien_US
dc.typeArticleen_US

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