Effect of Different Plant Growth-Promoting Rhizobacteria on Biological Soil Properties, Growth, Yield and Quality of Oregano (Origanum onites L.)

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dc.contributor.authorCakmakci, Ramazan
dc.contributor.authorHaliloglu, Kamil
dc.contributor.authorTuerkoglu, Aras
dc.contributor.authorOzkan, Guller
dc.contributor.authorKutlu, Meral
dc.contributor.authorVarmazyari, Atefeh
dc.contributor.authorMolnar, Zoltan
dc.date.accessioned2024-02-23T14:35:05Z
dc.date.available2024-02-23T14:35:05Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractIntensive agriculture uses continuous chemical fertilizers to increase crop yields, but excessive use of fertilizers leads to environmental pollution, permanent changes in physicochemical conditions in soil ecology, deterioration of soil biological health, leaching of nutrients, surface and groundwater pollution and eutrophication. Plant growth-promoting rhizobacteria (PGPR) are becoming increasingly important for ensuring crop safety, increasing nutrient uptake and output, lowering fertilizer costs, preventing environmental contamination and promoting sustainable agriculture and agricultural resources. Therefore, the purpose of this study was to identify and evaluate the effects of fifteen bacteria strains that were isolated from various acidic rhizospheric soils as biofertilizers on soil biological properties. Growth, yield and quality traits were analyzed, and various PGPR were identified using 16S ribosomal RNA of Turkish oregano. Fifteen bacterial inoculations with 1-aminocyclopropane-1-carboxylate (ACC) deaminase, N2-fixing, P-solubilizing and/or IAA-producing genes were used in the experiment, which was carried out in a randomized block design with five replicates (each with three pots) and a control without inoculation. Increased biological activity in soil inoculated with bacteria with multiple traits was confirmed by high C and N content in microbial biomass, urease, dehydrogenase and acid and alkaline phosphatase activities. Essential oil content, oil yield, thymol and carvacrol contents increased by 0.5-40.1%, 5.9-71.9%, 0.07-16.7% and 0.3-9.2%, respectively, as a result of bacterial inoculation. Oil content ranged from 2.02% to 2.83%; carvacrol (66.1-72.2%) was the main constituent, followed by thymol (14.5-16.9%) and linalool (1.38-3.68%). Two large PGPR groups were formed based on genetic distance analysis. Responses were variable and depended on the inoculant strain and the parameters being evaluated. The results indicate PGPR has clear potential for improving the yield of cultivated aromatic and essential oil plants, such as oregano.en_US
dc.description.sponsorshipAtatrk University [2011/176]en_US
dc.description.sponsorshipThe authors acknowledge the Ataturk University for their financial support with a grant (Scientific Research Projects Fund (BAP) No. 2011/176).en_US
dc.identifier.doi10.3390/agronomy13102511
dc.identifier.issn2073-4395
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-85175372892en_US
dc.identifier.urihttps://doi.org/10.3390/agronomy13102511
dc.identifier.urihttps://hdl.handle.net/20.500.12452/15856
dc.identifier.volume13en_US
dc.identifier.wosWOS:001094911500001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMdpien_US
dc.relation.ispartofAgronomy-Baselen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMedicinal Plantsen_US
dc.subjectOreganoen_US
dc.subjectPhylogenetic Analysisen_US
dc.subjectBiomassen_US
dc.titleEffect of Different Plant Growth-Promoting Rhizobacteria on Biological Soil Properties, Growth, Yield and Quality of Oregano (Origanum onites L.)en_US
dc.typeArticleen_US

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