Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway
Recent reports have underlined the potential of gamma (γ)-rays as tools for seed priming, a process used in seed industry to increase seed vigor and to enhance plant tolerance to biotic/abiotic stresses. However, the impact ofγ-rays on key aspects of plant metabolism still needs to be carefully eval...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Hindawi Limited
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/165563 |
| _version_ | 1855541836473434112 |
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| author | Macovei, Anca Garg, Bharti Raikwar, Shailendra Balestrazzi, Alma Carbonera, Daniela Buttafava, Armando Bremont, Juan Francisco Jiménez Gill, Sarvajeet Singh Tuteja, Narendra |
| author_browse | Balestrazzi, Alma Bremont, Juan Francisco Jiménez Buttafava, Armando Carbonera, Daniela Garg, Bharti Gill, Sarvajeet Singh Macovei, Anca Raikwar, Shailendra Tuteja, Narendra |
| author_facet | Macovei, Anca Garg, Bharti Raikwar, Shailendra Balestrazzi, Alma Carbonera, Daniela Buttafava, Armando Bremont, Juan Francisco Jiménez Gill, Sarvajeet Singh Tuteja, Narendra |
| author_sort | Macovei, Anca |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Recent reports have underlined the potential of gamma (γ)-rays as tools for seed priming, a process used in seed industry to increase seed vigor and to enhance plant tolerance to biotic/abiotic stresses. However, the impact ofγ-rays on key aspects of plant metabolism still needs to be carefully evaluated. In the present study, rice seeds were challenged with different doses ofγ-rays and grown in absence/presence of NaCl to assess the impact of these treatments on the early stages of plant life. Enhanced germination efficiency associated with increase in radicle and hypocotyl length was observed, while at later stages no increase in plant tolerance to salinity stress was evident. APX, CAT, and GR were enhanced at transcriptional level and in terms of enzyme activity, indicating the activation of antioxidant defence. The profiles of DNA damage accumulation were obtained using SCGE and the implication of TC-NER pathway in DNA damage sensing and repair mechanisms is discussed.OsXPB2,OsXPD,OsTFIIS,andOsTFIIS-likegenes showed differential modulation in seedlings and plantlets in response toγ-irradiation and salinity stress. Altogether, the synergistic exposure toγ-rays and NaCl resulted in enhanced oxidative stress and proper activation of antioxidant mechanisms, thus being compatible with plant survival. |
| format | Journal Article |
| id | CGSpace165563 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Hindawi Limited |
| publisherStr | Hindawi Limited |
| record_format | dspace |
| spelling | CGSpace1655632025-12-08T10:29:22Z Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway Macovei, Anca Garg, Bharti Raikwar, Shailendra Balestrazzi, Alma Carbonera, Daniela Buttafava, Armando Bremont, Juan Francisco Jiménez Gill, Sarvajeet Singh Tuteja, Narendra abiotic stress antioxidants biotic stress gamma radiation pregermination salinity salt stress seeds Recent reports have underlined the potential of gamma (γ)-rays as tools for seed priming, a process used in seed industry to increase seed vigor and to enhance plant tolerance to biotic/abiotic stresses. However, the impact ofγ-rays on key aspects of plant metabolism still needs to be carefully evaluated. In the present study, rice seeds were challenged with different doses ofγ-rays and grown in absence/presence of NaCl to assess the impact of these treatments on the early stages of plant life. Enhanced germination efficiency associated with increase in radicle and hypocotyl length was observed, while at later stages no increase in plant tolerance to salinity stress was evident. APX, CAT, and GR were enhanced at transcriptional level and in terms of enzyme activity, indicating the activation of antioxidant defence. The profiles of DNA damage accumulation were obtained using SCGE and the implication of TC-NER pathway in DNA damage sensing and repair mechanisms is discussed.OsXPB2,OsXPD,OsTFIIS,andOsTFIIS-likegenes showed differential modulation in seedlings and plantlets in response toγ-irradiation and salinity stress. Altogether, the synergistic exposure toγ-rays and NaCl resulted in enhanced oxidative stress and proper activation of antioxidant mechanisms, thus being compatible with plant survival. 2014 2024-12-19T12:55:11Z 2024-12-19T12:55:11Z Journal Article https://hdl.handle.net/10568/165563 en Open Access Hindawi Limited Macovei, Anca; Garg, Bharti; Raikwar, Shailendra; Balestrazzi, Alma; Carbonera, Daniela; Buttafava, Armando; Bremont, Juan Francisco Jiménez; Gill, Sarvajeet Singh and Tuteja, Narendra. 2014. Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway. BioMed Research International, Volume 2014 p. 1-15 |
| spellingShingle | abiotic stress antioxidants biotic stress gamma radiation pregermination salinity salt stress seeds Macovei, Anca Garg, Bharti Raikwar, Shailendra Balestrazzi, Alma Carbonera, Daniela Buttafava, Armando Bremont, Juan Francisco Jiménez Gill, Sarvajeet Singh Tuteja, Narendra Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway |
| title | Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway |
| title_full | Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway |
| title_fullStr | Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway |
| title_full_unstemmed | Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway |
| title_short | Synergistic exposure of rice seeds to different doses of gamma-ray and salinity stress resulted in increased antioxidant enzyme activities and gene-specific modulation of TC-NER pathway |
| title_sort | synergistic exposure of rice seeds to different doses of gamma ray and salinity stress resulted in increased antioxidant enzyme activities and gene specific modulation of tc ner pathway |
| topic | abiotic stress antioxidants biotic stress gamma radiation pregermination salinity salt stress seeds |
| url | https://hdl.handle.net/10568/165563 |
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