Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione
To test whether praseodymium (Pr) regulates cadmium (Cd) tolerance, we explored the effects of Pr on enzymatic activities in the regeneration and biosynthetic pathways of ascorbate and glutathione in maize seedlings under Cd stress. The findings demonstrated that Cd stress increased enzymatic activi...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2021-11-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-202111-0003_praseodymium-enhanced-the-tolerance-of-maize-seedlings-subjected-to-cadmium-stress-by-up-regulating-the-enzymes.php |
| _version_ | 1797898099940655104 |
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| author | Qidi Zhu Yanyan Li Shang Gao Changjuan Shan |
| author_facet | Qidi Zhu Yanyan Li Shang Gao Changjuan Shan |
| author_sort | Qidi Zhu |
| collection | DOAJ |
| description | To test whether praseodymium (Pr) regulates cadmium (Cd) tolerance, we explored the effects of Pr on enzymatic activities in the regeneration and biosynthetic pathways of ascorbate and glutathione in maize seedlings under Cd stress. The findings demonstrated that Cd stress increased enzymatic activities in the regeneration pathway (ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR), glutathione reductase (GR), monodehydroascorbate reductase (MDHAR)) and in the biosynthetic pathway of ascorbate and glutathione (γ-ECS and GalLDH), as well as ascorbate (AsA) and glutathione (GSH) contents. However, Cd stress significantly decreased AsA/dehydroascorbic acid (DHA) ratio and GSH/oxidised glutathione (GSSG) ratio, net photosynthetic rate (Pn), chlorophylls (Chl) and carotenoids (Car) contents, maximum photochemical efficiency of PSII (Fv/Fm), photochemical quenching (qP) and quantum efficiency of PSII photochemistry (ΦPSII), as well as plant height and biomass. Application of Pr to Cd-stressed seedlings enhanced above enzymatic activities, AsA and GSH contents, AsA/DHA and GSH/GSSG ratios, Pn, Chl and Car contents, Fv/Fm, qP and ΦPSII, as well as plant height and biomass. Meanwhile, the application of Pr to Cd-stressed seedlings reduced malondialdehyde (MDA) content and electrolyte leakage. The above results indicated |
| first_indexed | 2024-04-10T08:07:53Z |
| format | Article |
| id | doaj.art-d78897362ea54ce3937b39c319b41917 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:07:53Z |
| publishDate | 2021-11-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-d78897362ea54ce3937b39c319b419172023-02-23T03:47:00ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682021-11-01671163364210.17221/217/2021-PSEpse-202111-0003Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathioneQidi Zhu0Yanyan Li1Shang Gao2Changjuan Shan3Henan Institute of Science and Technology, Xinxiang, P.R. ChinaHenan Institute of Science and Technology, Xinxiang, P.R. ChinaYangtze University, Jingzhou, P.R. ChinaHenan Institute of Science and Technology, Xinxiang, P.R. ChinaTo test whether praseodymium (Pr) regulates cadmium (Cd) tolerance, we explored the effects of Pr on enzymatic activities in the regeneration and biosynthetic pathways of ascorbate and glutathione in maize seedlings under Cd stress. The findings demonstrated that Cd stress increased enzymatic activities in the regeneration pathway (ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR), glutathione reductase (GR), monodehydroascorbate reductase (MDHAR)) and in the biosynthetic pathway of ascorbate and glutathione (γ-ECS and GalLDH), as well as ascorbate (AsA) and glutathione (GSH) contents. However, Cd stress significantly decreased AsA/dehydroascorbic acid (DHA) ratio and GSH/oxidised glutathione (GSSG) ratio, net photosynthetic rate (Pn), chlorophylls (Chl) and carotenoids (Car) contents, maximum photochemical efficiency of PSII (Fv/Fm), photochemical quenching (qP) and quantum efficiency of PSII photochemistry (ΦPSII), as well as plant height and biomass. Application of Pr to Cd-stressed seedlings enhanced above enzymatic activities, AsA and GSH contents, AsA/DHA and GSH/GSSG ratios, Pn, Chl and Car contents, Fv/Fm, qP and ΦPSII, as well as plant height and biomass. Meanwhile, the application of Pr to Cd-stressed seedlings reduced malondialdehyde (MDA) content and electrolyte leakage. The above results indicatedhttps://pse.agriculturejournals.cz/artkey/pse-202111-0003_praseodymium-enhanced-the-tolerance-of-maize-seedlings-subjected-to-cadmium-stress-by-up-regulating-the-enzymes.phpcadmium toxicityrare earth elementredox stateantioxidantzea mays l |
| spellingShingle | Qidi Zhu Yanyan Li Shang Gao Changjuan Shan Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione Plant, Soil and Environment cadmium toxicity rare earth element redox state antioxidant zea mays l |
| title | Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione |
| title_full | Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione |
| title_fullStr | Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione |
| title_full_unstemmed | Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione |
| title_short | Praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up-regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione |
| title_sort | praseodymium enhanced the tolerance of maize seedlings subjected to cadmium stress by up regulating the enzymes in the regeneration and biosynthetic pathways of ascorbate and glutathione |
| topic | cadmium toxicity rare earth element redox state antioxidant zea mays l |
| url | https://pse.agriculturejournals.cz/artkey/pse-202111-0003_praseodymium-enhanced-the-tolerance-of-maize-seedlings-subjected-to-cadmium-stress-by-up-regulating-the-enzymes.php |
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