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The application of a commercially available citrus-based extract mitigates moderate NaCl-stress in arabidopsis thaliana plants

dc.contributor.authorLoubser, Johannesen_ZA
dc.contributor.authorHills, Paulen_ZA
dc.date.accessioned2020-08-24T08:59:34Z
dc.date.available2020-08-24T08:59:34Z
dc.date.issued2020
dc.identifier.citationLoubser, J. & Hills, P. 2020. The application of a commercially available citrus-based extract mitigates moderate NaCl-stress in arabidopsis thaliana plants. Plants, 9(8):1-23, doi:10.3390/plants9081010
dc.identifier.issn1424-2818 (online)
dc.identifier.otherdoi:10.3390/plants9081010
dc.identifier.urihttp://hdl.handle.net/10019.1/108756
dc.descriptionCITATION: Loubser, J. & Hills, P. 2020. The application of a commercially available citrus-based extract mitigates moderate NaCl-stress in arabidopsis thaliana plants. Plants, 9(8):1-23, doi:10.3390/plants9081010.
dc.descriptionThe original publication is available at http://www.mdpi.com
dc.descriptionPublication of this article was funded by the Stellenbosch University Open Access Fund
dc.description.abstractAims: The aim of this study was to assess the effect of BC204 as a plant biostimulant on Arabidopsis thaliana plants under normal and NaCl-stressed conditions. Methods: For this study, ex vitro and in vitro growth experiments were conducted to assess the effect of both NaCl and BC204 on basic physiological parameters such as biomass, chlorophyll, proline, malondialdehyde, stomatal conductivity, Fv/Fm and the expression of four NaCl-responsive genes. Results: This study provides preliminary evidence that BC204 mitigates salt stress in Arabidopsis thaliana. BC204 treatment increased chlorophyll content, fresh and dry weights, whilst reducing proline, anthocyanin and malondialdehyde content in the presence of 10 dS·m−1 electroconductivity (EC) salt stress. Stomatal conductivity was also reduced by BC204 and NaCl in source leaves. In addition, BC204 had a significant effect on the expression of salinity-related genes, stimulating the expression of salinity-related genes RD29A and SOS1 independently of NaCl-stress. Conclusions: BC204 stimulated plant growth under normal growth conditions by increasing above-ground shoot tissue and root and shoot growth in vitro. BC204 also increased chlorophyll content while reducing stomatal conductivity. BC204 furthermore mitigated moderate to severe salt stress (10–20 dS·m−1) in A. thaliana. Under salt stress conditions, BC204 reduced the levels of proline, anthocyanin and malondialdehyde. The exact mechanism by which this occurs is unknown, but the results in this study suggest that BC204 may act as a priming agent, stimulating the expression of genes such as SOS1 and RD29A.en_ZA
dc.description.urihttps://www.mdpi.com/2223-7747/9/8/1010#cite
dc.format.extent23 pages
dc.language.isoen_ZAen_ZA
dc.publisherMDPI
dc.subjectArabidopsis thaliana -- Biotechnologyen_ZA
dc.subjectPlants -- Effect of salt onen_ZA
dc.subjectBC204 treatmenten_ZA
dc.subjectCitrus extracs -- Biotechnologyen_ZA
dc.titleThe application of a commercially available citrus-based extract mitigates moderate NaCl-stress in arabidopsis thaliana plantsen_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's version
dc.rights.holderAuthors retain copyright


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