Physiological and biochemical responses of osmo-primed parsley seeds subjected to saline stress
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| Format: | Artículo científico |
| Language: | en |
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Universidade Estadual de Maringá
2022
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| author | Matheus Kainan de Paula Manjavachi |
| author_facet | Matheus Kainan de Paula Manjavachi |
| contents | Physiological and biochemical responses of osmo-primed parsley seeds subjected to saline stress Matheus Kainan de Paula Manjavachi Tiago Alexandre Silva Cristiane Carvalho Guimarães Maria Márcia Pereira Sartori Edvaldo Aparecido Amaral da Silva Agrociencias vigour primed seeds antioxidant system Petroselinum crispum Water and salt stress conditions affect germination and seedling emergence. It is known that physiological priming can not only trigger different mechanisms to increase the speed and uniformity of germination, but also influence the antioxidant defence system of the seeds, especially in adverse conditions. In this context, the objective of this work was to evaluate the physiological seed quality and the activity of antioxidant enzymes in seeds of Petroselinum crispum induced to tolerate saline stress through osmo-priming. Seeds were placed in polyethylene glycol solutions with three osmotic potentials (-0.5, -1.0 or -1.5 MPa) for 2, 4 or 6 days. Subsequently, they were placed on substrates moistened with sodium chloride solution (NaCl), in concentrations that generated osmotic potentials of -0.2, -0.4, -0.6, -0.8 or -1.0 MPa, to germinate. The germination percentage, germination speed index, seedling length, fresh weight, dry weight and activity of the antioxidant enzymes superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were evaluated. Germination and germination speed index decreased linearly with the increase in NaCl concentrations, indicating the species sensitivity. As for length, fresh weight and dry weight of seedlings, this effect was more expressive from the potential of -0.4 MPa. The vigour and activity of SOD, POD, and CAT enzymes were reduced in unprimed seeds, emphasising the effectiveness of the technique. The induction of tolerance to saline stress can be related to the activity of the antioxidant system observed in seeds. 2022 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303071489028 https://www.redalyc.org/journal/3030/303071489028/ https://www.redalyc.org/journal/3030/303071489028/html/ https://www.redalyc.org/journal/3030/303071489028/303071489028.epub https://www.redalyc.org/journal/3030/303071489028/movil 10.4025/actasciagron.v44i1.54364 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Vol.44 |
| format | Artículo científico |
| id | redalyc_303071489028 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Physiological and biochemical responses of osmo-primed parsley seeds subjected to saline stress Matheus Kainan de Paula Manjavachi Agrociencias vigour primed seeds antioxidant system Petroselinum crispum Physiological and biochemical responses of osmo-primed parsley seeds subjected to saline stress Matheus Kainan de Paula Manjavachi Tiago Alexandre Silva Cristiane Carvalho Guimarães Maria Márcia Pereira Sartori Edvaldo Aparecido Amaral da Silva Agrociencias vigour primed seeds antioxidant system Petroselinum crispum Water and salt stress conditions affect germination and seedling emergence. It is known that physiological priming can not only trigger different mechanisms to increase the speed and uniformity of germination, but also influence the antioxidant defence system of the seeds, especially in adverse conditions. In this context, the objective of this work was to evaluate the physiological seed quality and the activity of antioxidant enzymes in seeds of Petroselinum crispum induced to tolerate saline stress through osmo-priming. Seeds were placed in polyethylene glycol solutions with three osmotic potentials (-0.5, -1.0 or -1.5 MPa) for 2, 4 or 6 days. Subsequently, they were placed on substrates moistened with sodium chloride solution (NaCl), in concentrations that generated osmotic potentials of -0.2, -0.4, -0.6, -0.8 or -1.0 MPa, to germinate. The germination percentage, germination speed index, seedling length, fresh weight, dry weight and activity of the antioxidant enzymes superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were evaluated. Germination and germination speed index decreased linearly with the increase in NaCl concentrations, indicating the species sensitivity. As for length, fresh weight and dry weight of seedlings, this effect was more expressive from the potential of -0.4 MPa. The vigour and activity of SOD, POD, and CAT enzymes were reduced in unprimed seeds, emphasising the effectiveness of the technique. The induction of tolerance to saline stress can be related to the activity of the antioxidant system observed in seeds. 2022 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303071489028 https://www.redalyc.org/journal/3030/303071489028/ https://www.redalyc.org/journal/3030/303071489028/html/ https://www.redalyc.org/journal/3030/303071489028/303071489028.epub https://www.redalyc.org/journal/3030/303071489028/movil 10.4025/actasciagron.v44i1.54364 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Vol.44 |
| title | Physiological and biochemical responses of osmo-primed parsley seeds subjected to saline stress |
| topic | Agrociencias vigour primed seeds antioxidant system Petroselinum crispum |
| url | https://www.redalyc.org/articulo.oa?id=303071489028 https://www.redalyc.org/journal/3030/303071489028/ https://www.redalyc.org/journal/3030/303071489028/html/ https://www.redalyc.org/journal/3030/303071489028/303071489028.epub https://www.redalyc.org/journal/3030/303071489028/movil |