Central role of salicylic acid in resistance of safflower (Carthamus tinctorius L.) against salinity

The effects of salicylic acid (SA) on growth parameters and enzyme activities were investigated in salt-stressed safflower (Carthamus tinctorius L.). Twenty-five days after sowing, seedlings were treated with NaCl (0, 100, and 200 mM) and SA (1 mM), and were harvested at 21 days after treatments. Re...

Full description

Saved in:
Bibliographic Details
Published in:Journal of plant interactions 2017, Vol.12 (1), p.414-420
Main Authors: Shaki, Fatemeh, Ebrahimzadeh Maboud, Hasan, Niknam, Vahid
Format: Article
Language:English
Subjects:
Acid resistance
Antioxidants
Carthamus tinctorius
Catalase
Enzymatic activity
Enzymes
Hydrogen peroxide
Malondialdehyde
Parameters
Phenolic compounds
Phenols
Reactive oxygen species
resistance
Safflower
Salicylic acid
Salinity
Salinity effects
Seedlings
Sodium chloride
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of salicylic acid (SA) on growth parameters and enzyme activities were investigated in salt-stressed safflower (Carthamus tinctorius L.). Twenty-five days after sowing, seedlings were treated with NaCl (0, 100, and 200 mM) and SA (1 mM), and were harvested at 21 days after treatments. Results showed that some growth parameters decreased under salinity, while malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) content, phenolic compounds, and some enzyme activities increased. SA application increased some growth parameters, MDA and H 2 O 2 content, and enzyme activities except catalase (CAT), which was different from the other enzymes and SA significantly reduced CAT activity in plants. These results suggest that SA-induced tolerance to salinity may be related to regulation of antioxidative responses and H 2 O 2 level. Our study suggested that the resistant safflower can direct reactive oxygen species from a threat to an opportunity by using SA. Therefore, exogenous application of SA played this role through regulation of the antioxidant system.
ISSN:1742-9145
1742-9153
DOI:10.1080/17429145.2017.1373870