Interaction of salicylic acid and ethylene and their effects on some physiological and biochemical parameters in canola plants (Brassica napus L.)

Environmental stresses, such as cold, heat, salinity, and drought, induce ethylene production and oxidative stress and cause damage in plants. On the other hand, studies have shown that salicylic acid (SA) induced resistance to environmental stresses in plants. In this research, the effects of ethyl...

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Bibliographic Details
Published in:Photosynthetica 2013-09, Vol.51 (3), p.411-418
Main Authors: Tirani, M. M, Nasibi, F, Kalantari, Kh. M
Format: Article
Language:English
Subjects:
anthocyanins
ascorbic acid
Biomedical and Life Sciences
Brassica napus
canola
carotenoids
chlorophyll
dehydroascorbic acid
drought
ethylene
ethylene production
heat
induced resistance
leaves
Life Sciences
lipid peroxidation
oxidative stress
plant damage
Plant Physiology
salicylic acid
salinity
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Summary:Environmental stresses, such as cold, heat, salinity, and drought, induce ethylene production and oxidative stress and cause damage in plants. On the other hand, studies have shown that salicylic acid (SA) induced resistance to environmental stresses in plants. In this research, the effects of ethylene on chlorophyll (Chl), carotenoid (Car), anthocyanin, flavonoids, ascorbic acid, dehydroascorbic acid, total ascorbate, lipid peroxidation, and ethylene production in leaves of canola pretreated with SA were studied. The plants were grown in pots until they have four leaves. Leaves were sprayed for two days with three different concentrations of SA (0, 0.5, and 1 mM). The plants were treated for three days with three concentrations of ethylene (0, 50, and 100 ppm). At the end of the ethylene treatments, all examined parameters were measured. The results showed that the ethylene treatments induced lipid peroxidation, while SA mitigated this effect. The ethylene treatment lowered significantly Chl and Car contents and anthocyanin accumulation, but SA alleviated these effects. SA induced an increase in ascorbic acid content in canola plants after the ethylene treatments. Therefore, we concluded that SA played an important role in the alleviation of damages caused by stress conditions.
ISSN:0300-3604
1573-9058
DOI:10.1007/s11099-013-0041-2