Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize
Phosphate fertilisers and past mining activity are significant source of cadmium (Cd) pollution; thus, the concentration of Cd in agricultural soils has been substantially rising. Various substances have been tested for their potential to alleviate the toxicity of Cd and stimulate the accumulation o...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651323002816 |
| _version_ | 1797851967388647424 |
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| author | Zuzana Vivodová Diana Hačkuličová Michaela Bačovčinová Kristína Šípošová Eva Labancová Karin Kollárová |
| author_facet | Zuzana Vivodová Diana Hačkuličová Michaela Bačovčinová Kristína Šípošová Eva Labancová Karin Kollárová |
| author_sort | Zuzana Vivodová |
| collection | DOAJ |
| description | Phosphate fertilisers and past mining activity are significant source of cadmium (Cd) pollution; thus, the concentration of Cd in agricultural soils has been substantially rising. Various substances have been tested for their potential to alleviate the toxicity of Cd and stimulate the accumulation of Cd in plant organs. This study brought new insight of the impact of galactoglucomannan oligosaccharides (GGMOs) on the maize plants grown under/in Cd stress. The application of GGMOs reduced concentration of Cd in the maize leaves and thus GGMOs increased their growth (by 24%), concentration of photosynthetic pigments (up to 39.4%), effective quantum yield of photosystem II (up to 29.6%), and net photosynthetic rate (up to 19.6%). The concentrations of stress markers increased in the Cd and Cd + GGMOs treatment; however, significantly lower concentration was detected in the Cd + GGMOs treatment (malondialdehyde by 21.7%, hydrogen peroxide by 13%). The concentration of auxin increased almost by two-fold in the Cd + GGMOs treatment compared to the Cd treatment. The recovered auxin level and enhanced nutrient uptake are proposed mechanisms of GGMOs’ action during stress. GGMOs are molecules with biostimulant potential that could support vitality of maize plants in Cd stress. |
| first_indexed | 2024-04-09T19:26:25Z |
| format | Article |
| id | doaj.art-31845e90f03a4fd88eeca80b2c48e59b |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-04-09T19:26:25Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-31845e90f03a4fd88eeca80b2c48e59b2023-04-05T08:05:45ZengElsevierEcotoxicology and Environmental Safety0147-65132023-04-01255114777Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maizeZuzana Vivodová0Diana Hačkuličová1Michaela Bačovčinová2Kristína Šípošová3Eva Labancová4Karin Kollárová5Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, SlovakiaInstitute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, SlovakiaDepartment of Botany, Institute of Biology and Ecology, Šafárik University, Mánesova 23, 040 01 Košice, SlovakiaInstitute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, SlovakiaInstitute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, SlovakiaInstitute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia; Corresponding author.Phosphate fertilisers and past mining activity are significant source of cadmium (Cd) pollution; thus, the concentration of Cd in agricultural soils has been substantially rising. Various substances have been tested for their potential to alleviate the toxicity of Cd and stimulate the accumulation of Cd in plant organs. This study brought new insight of the impact of galactoglucomannan oligosaccharides (GGMOs) on the maize plants grown under/in Cd stress. The application of GGMOs reduced concentration of Cd in the maize leaves and thus GGMOs increased their growth (by 24%), concentration of photosynthetic pigments (up to 39.4%), effective quantum yield of photosystem II (up to 29.6%), and net photosynthetic rate (up to 19.6%). The concentrations of stress markers increased in the Cd and Cd + GGMOs treatment; however, significantly lower concentration was detected in the Cd + GGMOs treatment (malondialdehyde by 21.7%, hydrogen peroxide by 13%). The concentration of auxin increased almost by two-fold in the Cd + GGMOs treatment compared to the Cd treatment. The recovered auxin level and enhanced nutrient uptake are proposed mechanisms of GGMOs’ action during stress. GGMOs are molecules with biostimulant potential that could support vitality of maize plants in Cd stress.http://www.sciencedirect.com/science/article/pii/S0147651323002816AuxinCadmiumDefenceOligosaccharidesOxidative stressPlant vitality |
| spellingShingle | Zuzana Vivodová Diana Hačkuličová Michaela Bačovčinová Kristína Šípošová Eva Labancová Karin Kollárová Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize Ecotoxicology and Environmental Safety Auxin Cadmium Defence Oligosaccharides Oxidative stress Plant vitality |
| title | Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize |
| title_full | Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize |
| title_fullStr | Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize |
| title_full_unstemmed | Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize |
| title_short | Galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize |
| title_sort | galactoglucomannan oligosaccharides alleviate cadmium toxicity by improving physiological processes in maize |
| topic | Auxin Cadmium Defence Oligosaccharides Oxidative stress Plant vitality |
| url | http://www.sciencedirect.com/science/article/pii/S0147651323002816 |
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