Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern
ABSTRACT In many plant species, tolerance to toxic metals is highly dependent on glutathione, an essential metabolite for cellular detoxification. We evaluated the responses of glutathione metabolism to arsenite (AsIII) in Salvinia molesta, an aquatic fern that has unexplored phytoremediation potent...
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| Format: | Article |
| Language: | English |
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Sociedade Botânica do Brasil
2017-09-01
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| Series: | Acta Botânica Brasílica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400657&lng=en&tlng=en |
| _version_ | 1819125583092645888 |
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| author | Adinan Alves da Silva Juraci Alves de Oliveira Fernanda Vidal de Campos Cleberson Ribeiro Fernanda dos Santos Farnese |
| author_facet | Adinan Alves da Silva Juraci Alves de Oliveira Fernanda Vidal de Campos Cleberson Ribeiro Fernanda dos Santos Farnese |
| author_sort | Adinan Alves da Silva |
| collection | DOAJ |
| description | ABSTRACT In many plant species, tolerance to toxic metals is highly dependent on glutathione, an essential metabolite for cellular detoxification. We evaluated the responses of glutathione metabolism to arsenite (AsIII) in Salvinia molesta, an aquatic fern that has unexplored phytoremediation potential. Plants were exposed to different AsIII concentrations in nutrient solution for 24 h. AsIII caused cell membrane damage to submerged leaves, indicating oxidative stress. There was an increase in the glutathione content and ϒ-glutamylcysteine synthetase enzyme activity in the submerged and floating leaves. The glutathione peroxidase and glutathione sulfotransferase enzymes also showed increased activity in both plant parts, whereas glutathione reductase only showed increased activity in the submerged leaves. These findings suggest an important role for glutathione in the protection of S. molesta against the toxic effects of AsIII, with more effective tolerance responses in the floating leaves. |
| first_indexed | 2024-12-22T07:42:26Z |
| format | Article |
| id | doaj.art-17c5628f58d24454a19c529291d7c7a6 |
| institution | Directory Open Access Journal |
| issn | 1677-941X |
| language | English |
| last_indexed | 2024-12-22T07:42:26Z |
| publishDate | 2017-09-01 |
| publisher | Sociedade Botânica do Brasil |
| record_format | Article |
| series | Acta Botânica Brasílica |
| spelling | doaj.art-17c5628f58d24454a19c529291d7c7a62022-12-21T18:33:43ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X2017-09-0131465766410.1590/0102-33062017abb0087S0102-33062017000400657Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fernAdinan Alves da SilvaJuraci Alves de OliveiraFernanda Vidal de CamposCleberson RibeiroFernanda dos Santos FarneseABSTRACT In many plant species, tolerance to toxic metals is highly dependent on glutathione, an essential metabolite for cellular detoxification. We evaluated the responses of glutathione metabolism to arsenite (AsIII) in Salvinia molesta, an aquatic fern that has unexplored phytoremediation potential. Plants were exposed to different AsIII concentrations in nutrient solution for 24 h. AsIII caused cell membrane damage to submerged leaves, indicating oxidative stress. There was an increase in the glutathione content and ϒ-glutamylcysteine synthetase enzyme activity in the submerged and floating leaves. The glutathione peroxidase and glutathione sulfotransferase enzymes also showed increased activity in both plant parts, whereas glutathione reductase only showed increased activity in the submerged leaves. These findings suggest an important role for glutathione in the protection of S. molesta against the toxic effects of AsIII, with more effective tolerance responses in the floating leaves.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400657&lng=en&tlng=enarsenicglutathionemacrophytesoxidative stressphytoremediation |
| spellingShingle | Adinan Alves da Silva Juraci Alves de Oliveira Fernanda Vidal de Campos Cleberson Ribeiro Fernanda dos Santos Farnese Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern Acta Botânica Brasílica arsenic glutathione macrophytes oxidative stress phytoremediation |
| title | Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern |
| title_full | Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern |
| title_fullStr | Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern |
| title_full_unstemmed | Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern |
| title_short | Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern |
| title_sort | role of glutathione in tolerance to arsenite in salvinia molesta an aquatic fern |
| topic | arsenic glutathione macrophytes oxidative stress phytoremediation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400657&lng=en&tlng=en |
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