Osmoregulation and antioxidant metabolism in drought-stressed Helianthus annuus under triadimefon drenching - 12/06/08
, Cheruth Abdul Jaleel ⁎ , Ramamurthy Somasundaram, Rajaram Panneerselvam
Corresponding author.Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
| pages | 8 |
| Iconographies | 7 |
| Vidéos | 0 |
| Autres | 0 |
Abstract |
A pot-culture experiment was conducted to estimate the ameliorating effect of triadimefon (TDM) on drought stress in sunflower (Helianthus annuus L.) plants. The plants were subjected to 3-, 6-, and 9-day-interval drought (DID) stress and drought stress with TDM @ 15 mg
l−1 and 15 mgl−1 TDM alone from the 30th day after sowing (DAS). One-day-interval irrigation was kept as control. The plant samples were collected on and separated into root, stem and leaf for estimating the amino acid (AA), proline (PRO) and glycine betaine (GB) contents and the activities of antioxidant enzymes. Individual and combined drought stress and TDM treatments increased AA, PRO and GB contents, superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), and polyphenol oxidase (PPO) activities when compared to control. From the results of this investigation, it can be concluded that the application of TDM caused a partial amelioration of the adverse effects of drought stress by its influence on quaternary ammonium compounds and antioxidant potentials in H. annuus plants. To cite this article: P. Manivannan et al., C. R. Biologies 331 (2008).
Keywords : Antioxidants, Drought, Triadimefon, Helianthus annuus
Abbreviations : AA, APX, CAT, DAS, DID, GB, PRO, PPO, ROS, SOD, TDM
Plan
Vol 331 - N° 6
P. 418-425 - juin 2008 Retour au numéro
Article précédent
- Effect of deleterious nsSNP on the HER2 receptor based on stability and binding affinity with herceptin: A computational approach
- R. Rajasekaran, C. George Priya Doss, C. Sudandiradoss, K. Ramanathan, Rituraj Purohit, Rao Sethumadhavan
- Cadmium-induced oxidative stress and DNA damage in kidney of pregnant female rats
- Sihem Chater, Thierry Douki, Catherine Garrel, Alain Favier, Mohsen Sakly, Hafedh Abdelmelek
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’achat d’article à l’unité est indisponible à l’heure actuelle.
Déjà abonné à cette revue ?