Page 2/14
Abstract
Sodium chloride (NaCl) can cause oxidative stress in plants, which represents a potential obstacle to the development of monocultures worldwide. Onion
(Allium cepa L.) is a famous vegetable consumed and used in world cuisine. In the present study, we analyzed the inuence of soil physicochemical prole
and the remedial capacity of linalool on seed emergence, roots and leaf growth in onions subjected to salt stress, as well as its
in vivo and
in vitro antioxidant
potential, Fe2 + chelating activity and reducing power of Fe3+. The result of the soil analysis provided the relationship: S > Ca > K > Mg > Na. NaCl (150 mM)
signicantly reduced the Emergence Speed Index (ESI), leaf and root length, while increasing the peroxidation content. The length of leaves and roots
signicantly increased after treatment with linalool (300 and 500 μg/ml). Our data showed negative correlations between seed emergence and K +
concentration, which was reversed after treatments. Linalool (500 μg/mL) signicantly reduced oxidative stress, but increased Fe2 + concentration and did not
show potential to reduce Fe3+. The in vivo antioxidant effect of linalool is thought to primarily result from an enzymatic activation process. This mechanism
underscores its potential as a therapeutic agent for oxidative stress-related conditions. Further investigation into this process could unveil new avenues for
antioxidant therapy.