Advanced search
1 file | 296.78 KB

Oxidative stress tolerance and longevity in Arabidopsis: the late-flowering mutant gigantea is tolerant to paraquat

Jasmina Kurepa (UGent) , Jan Smalle (UGent) , Marc Van Montagu (UGent) and Dirk Inzé (UGent)
(1998) PLANT JOURNAL. 14(6). p.759-764
Author
Organization
Abstract
Recent genetic analyses of longevity in animals have revealed that long-lived strains are more tolerant to environmental stresses. To investigate whether extended longevity in Arabidopsis also correlates with an increase in stress tolerance, the response was tested of 11 late-flowering mutants to the superoxide radical-generating herbicide paraquat. A tight correlation between flowering time and paraquat tolerance was found when plants were exposed to low doses of herbicide. Furthermore, the mutant gigantea (gi-3) with the longest delay in flowering time had a high tolerance level to paraquat-induced oxidative stress. All the tested gi alleles had an increased tolerance to paraquat toxicity compared to wild-type, although the actual levels of tolerance differed. In addition, the gi-3 mutant was more tolerant to hydrogen peroxide. These results suggest that the link between longevity and oxidative stress resistance in plants is similar to that found in animals, implying that this phenomenon may be general for all aerobic organisms.
Keywords
MECHANISMS, RESISTANCE, DROSOPHILA, SENESCENCE, TRANSPORT, THALIANA

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 296.78 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Kurepa, Jasmina, Jan Smalle, Marc Van Montagu, and Dirk Inzé. 1998. “Oxidative Stress Tolerance and Longevity in Arabidopsis: The Late-flowering Mutant Gigantea Is Tolerant to Paraquat.” Plant Journal 14 (6): 759–764.
APA
Kurepa, J., Smalle, J., Van Montagu, M., & Inzé, D. (1998). Oxidative stress tolerance and longevity in Arabidopsis: the late-flowering mutant gigantea is tolerant to paraquat. PLANT JOURNAL, 14(6), 759–764.
Vancouver
1.
Kurepa J, Smalle J, Van Montagu M, Inzé D. Oxidative stress tolerance and longevity in Arabidopsis: the late-flowering mutant gigantea is tolerant to paraquat. PLANT JOURNAL. 1998;14(6):759–64.
MLA
Kurepa, Jasmina, Jan Smalle, Marc Van Montagu, et al. “Oxidative Stress Tolerance and Longevity in Arabidopsis: The Late-flowering Mutant Gigantea Is Tolerant to Paraquat.” PLANT JOURNAL 14.6 (1998): 759–764. Print.
@article{179019,
  abstract     = {Recent genetic analyses of longevity in animals have revealed that long-lived strains are more tolerant to environmental stresses. To investigate whether extended longevity in Arabidopsis also correlates with an increase in stress tolerance, the response was tested of 11 late-flowering mutants to the superoxide radical-generating herbicide paraquat. A tight correlation between flowering time and paraquat tolerance was found when plants were exposed to low doses of herbicide. Furthermore, the mutant gigantea (gi-3) with the longest delay in flowering time had a high tolerance level to paraquat-induced oxidative stress. All the tested gi alleles had an increased tolerance to paraquat toxicity compared to wild-type, although the actual levels of tolerance differed. In addition, the gi-3 mutant was more tolerant to hydrogen peroxide. These results suggest that the link between longevity and oxidative stress resistance in plants is similar to that found in animals, implying that this phenomenon may be general for all aerobic organisms.},
  author       = {Kurepa, Jasmina and Smalle, Jan and Van Montagu, Marc and Inz{\'e}, Dirk},
  issn         = {0960-7412},
  journal      = {PLANT JOURNAL},
  keyword      = {MECHANISMS,RESISTANCE,DROSOPHILA,SENESCENCE,TRANSPORT,THALIANA},
  language     = {eng},
  number       = {6},
  pages        = {759--764},
  title        = {Oxidative stress tolerance and longevity in Arabidopsis: the late-flowering mutant gigantea is tolerant to paraquat},
  url          = {http://dx.doi.org/10.1046/j.1365-313x.1998.00168.x},
  volume       = {14},
  year         = {1998},
}

Altmetric
View in Altmetric
Web of Science
Times cited: