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- W2913111915 abstract "Summary Although many genetic manipulations of crops providing biofortified or safer food have been prepared, the acceptance of biotechnology crops still remains limited. We report on a transgenic barley expressing the multi-functional protein osmotin that improves plant defense under stress conditions. An Agrobacterium–mediated technique was used to transform immature embryos of the spring barley cultivar Golden Promise. Transgenic barley plants of the T0 and T1 generations were evaluated by molecular methods. Transgenic barley tolerance to stress was determined by chlorophyll, total protein, malondialdehyde and ascorbate peroxidase content. Transgenic plants maintained the same level of chlorophyll and protein, which significantly declined in wild-type barley under the same stressful conditions. Salt stress evoked higher ascorbate peroxidase level and correspondingly less malondialdehyde. Methanol extracts of i) Fusarium oxysporum infected or ii) salt-stressed plants, were characterized by their acute toxicity effect on human dermal fibroblasts (HDF). Osmotin expressing barley extracts exhibited a lower cytotoxicity effect of statistical significance than that of wild-type plants under both types of stress tested on human dermal fibroblasts. Extract of Fusarium oxysporum infected transgenic barley was not able to damage DNA in Comet assay, which is in opposite to control plants. Moreover, this particular barley did not affect the local biodiversity interactions, which was tested through monitoring barley natural virus pathogen – host interactions – the BYDV and WDV viruses transmitted to the plants by aphids and leafhoppers. Our findings provide a new perspective which could help to evaluate the safety of products from genetically modified crops." @default.
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- W2913111915 date "2019-02-11" @default.
- W2913111915 modified "2023-10-18" @default.
- W2913111915 title "Recombinant expression of osmotin in barley improves stress resistance and food safety during adverse growing conditions" @default.
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- W2913111915 doi "https://doi.org/10.1101/546721" @default.
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