Biochemical response of Olea europaea cv. Gemlik to short-term salt stress

Authors

MEHMET ALİ DEMİRAL
DENİZ AKTAŞ UYGUN
MURAT UYGUN
ERKAN KASIRĞA
ARİFE ALEV KARAGÖZLER

DOI

10.3906/biy-0912-47

Abstract

One-year-old olive (Olea europaea L. cv. Gemlik) seedlings were exposed to increasing levels of salinity in pot culture. The experiment was laid out in a randomized block design with 6 replicates. Dry matter (DM) percentage, sodium (Na) and chloride (Cl) concentrations, 1,1-diphenyl-2-picryl hydrazyl (DPPH) scavenging activity, reducing power (RP), total phenolic content (TPC), and proline (PRO) content were determined in the leaves of the plants. The results showed that the olive plant used physiological and biochemical mechanisms consecutively to alleviate the effects of salt stress. The type of mechanism used was related to the severity of the salt stress. Salinity-induced variation in DPPH scavenging activity correlated well with the PRO and TPC variations of the leaves. The results showed that DPPH radical scavenging activity may be evaluated as a reliable parameter to assess the ability of antioxidants to hinder salt stress in olive plants.

Keywords

Chloride, dry matter, DPPH scavenging activity, reducing power, sodium, total phenolics

First Page

433

Last Page

442

Recommended Citation

DEMİRAL, MEHMET ALİ; UYGUN, DENİZ AKTAŞ; UYGUN, MURAT; KASIRĞA, ERKAN; and KARAGÖZLER, ARİFE ALEV (2011) "Biochemical response of Olea europaea cv. Gemlik to short-term salt stress," Turkish Journal of Biology: Vol. 35: No. 4, Article 6. https://doi.org/10.3906/biy-0912-47
Available at: https://journals.tubitak.gov.tr/biology/vol35/iss4/6