Synergistic Exposure of Rice Seeds to Different Doses of γ-Ray and Salinity Stress Resulted in Increased Antioxidant Enzyme Activities and Gene-Specific Modulation of TC-NER Pathway
Joint Authors
Garg, Bharti
Gill, Sarvajeet Singh
Tuteja, Narendra
Raikwar, Shailendra
Carbonera, Daniela
Bremont, Juan Francisco Jiménez
Balestrazzi, Alma
Macovei, Anca
Buttafava, Armando
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-01-16
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
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 of γ-rays on key aspects of plant metabolism still needs to be carefully evaluated.
In the present study, rice seeds were challenged with different doses of γ-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, and OsTFIIS-like genes showed differential modulation in seedlings and plantlets in response to γ-irradiation and salinity stress.
Altogether, the synergistic exposure to γ-rays and NaCl resulted in enhanced oxidative stress and proper activation of antioxidant mechanisms, thus being compatible with plant survival.
American Psychological Association (APA)
Macovei, Anca& Garg, Bharti& Raikwar, Shailendra& Balestrazzi, Alma& Carbonera, Daniela& Buttafava, Armando…[et al.]. 2014. Synergistic Exposure of Rice Seeds to Different Doses of γ-Ray and Salinity Stress Resulted in Increased Antioxidant Enzyme Activities and Gene-Specific Modulation of TC-NER Pathway. BioMed Research International،Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-489716
Modern Language Association (MLA)
Macovei, Anca…[et al.]. Synergistic Exposure of Rice Seeds to Different Doses of γ-Ray and Salinity Stress Resulted in Increased Antioxidant Enzyme Activities and Gene-Specific Modulation of TC-NER Pathway. BioMed Research International No. 2014 (2014), pp.1-15.
https://search.emarefa.net/detail/BIM-489716
American Medical Association (AMA)
Macovei, Anca& Garg, Bharti& Raikwar, Shailendra& Balestrazzi, Alma& Carbonera, Daniela& Buttafava, Armando…[et al.]. Synergistic Exposure of Rice Seeds to Different Doses of γ-Ray and Salinity Stress Resulted in Increased Antioxidant Enzyme Activities and Gene-Specific Modulation of TC-NER Pathway. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-489716
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489716