Effect of gibberellic acid (GA3) addition on physiological parameters and metal uptake in Phaseolus vulgaris seedlings under cadmium and lead stress

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dc.contributor.authorDilek Tepe H.
dc.date.accessioned2024-07-22T08:05:09Z
dc.date.available2024-07-22T08:05:09Z
dc.date.issued2022
dc.description.abstractCadmium (Cd) and lead (Pb) are considered phytotoxic metals. Gibberellins (GAs) are a large group of tetracyclic diterpenoid phytohormones from GA1 to GA136. Common bean (Phaseolus vulgaris) is a legume that is very popular around the world. In this study, 50 µM gibberellic acid (GA3) was added to bean seedlings treated with Cd plus Pb each at 100 or 200 mM concentration. Total chlorophyll content decreased by 25% and 40% in shoots of plant treated with 100 and 200 mM concentration, respectively compared to the control group. Based on results of the lipid peroxidation assay, in shoots, addition of GA3 in the presence of 100 mM and 200 mM metal concentrations was also reduced by 48% and 32%, respectively. Antioxidant and nitric oxide (NO) scavenging activities (%) increased with the addition of GA3. With the addition of GA3 to 100 mM toxicity in shoots, 2,2-diphenyl-1-picrylhydrazyl (DPPH) activity increased by 17%. NO scavenging activity (%) was reduced by 27% and 53% in the presence of 100 mM and 200 mM concentrations of the two heavy metals (HMs), respectively, in the shoot compared to the control group. NO scavenging activity reduction of 40% in 100 mM stress and 60% in 200 mM stress were determined. © 2021 Societá Botanica Italiana.
dc.identifier.DOI-ID10.1080/11263504.2021.2013331
dc.identifier.issn11263504
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13010
dc.language.isoEnglish
dc.publisherTaylor and Francis Ltd.
dc.titleEffect of gibberellic acid (GA3) addition on physiological parameters and metal uptake in Phaseolus vulgaris seedlings under cadmium and lead stress
dc.typeArticle

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