التفاصيل البيبلوغرافية
| العنوان: |
Oxidative stress induced by fluorine in Xanthoria parietina (L.) Th. Fr. |
| المؤلفون: |
Benhamada, Ouahiba, Benhamada, Nabila, Leghouchi, Essaid |
| المصدر: |
International Journal of Secondary Metabolite; Mar2023, Vol. 10 Issue 1, p124-136, 13p |
| مصطلحات موضوعية: |
XANTHORIA, OXIDATIVE stress, TOXICOLOGY of fluorine, GLUTATHIONE, ANTIOXIDANT analysis, CHLOROPHYLL analysis |
| مستخلص: |
In our work we were interested in the toxicity of fluorine on the various parameters of stress: chlorophyll, proteins, and antioxidant system in the lichen Xanthoria parietina (L.) Th. Fr., and for this purpose, lichen thalli were treated by sodium fluoride (NaF) at concentrations of 0, 0.5, 1.0, 5.0 and 10.0 mM, for time scale 0, 24, 48 and 96 h. The analysis results obtained revealed that all the parameters evaluated showed significant variations compared to those of the controls. From the analysis results obtained, it was noted that chlorophyll a (Ca), chlorophyll b (Cb) and total chlorophyll (Ca+b) decreased correlating with exposure times to NaF (r = -0.785, p < 0.001; r = -0.955, p < 0.001; r = -0.899, p < 0.001, respectively), with a significant increase of Ca/b ratio (p = 0.00572**) showing that Cb was more affected than Ca. However, hydrogen peroxide (H2O2) increased (r = 0.949, p < 0.001). In correlation with NaF concentrations, Glutathione (GSH) increased (r = 0.969, p < 0.001), while proteins decreased (r = -0.872, p < 0.001). Furthermore, results showed that catalase activity (CAT) increased correlating with increasing exposure time of X. parietina to increasing concentrations of NaF. Longterm exposure (48 h -96 h) caused a significant decrease in GSH content (p = 0.02*) followed by total destruction at time 96 h. [ABSTRACT FROM AUTHOR] |
|
Copyright of International Journal of Secondary Metabolite is the property of Pamukkale Universitiy, Faculty of Education and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder