TY - JOUR
T1 - Effect of exogenous application of methyl jasmonate on physiological and biochemical characteristics of Brassica napus L. cv. Talaye under salinity stress
AU - Ahmadi, F.I.
AU - Karimi, K.
AU - Struik, P.C.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Salt stress caused by high soil salinity is one of the most serious limiting factors threatening crop production in many parts of the world. To alleviate stressful conditions such as salinity, various plant growth regulators, such as jasmonates, are involved. In the present study, the effect of exogenously applied methyl jasmonate (MeJA) on physiological and biochemical characteristics of rapeseed (Brassica napus L. cv. Talaye) was studied in combination with different concentrations of NaCl under greenhouse conditions. Plants treated only with NaCl stress showed a significant decrease in growth parameters and photosynthesis rate and a significant increase in CO2 compensation point, respiration rate, soluble sugar content, malondialdehyde content, proline content and antioxidant enzymes activities when compared with the control. Exogenously applied MeJA mitigated the inhibitory effect of salt stress on these variables at all NaCl levels. Exogenously applied MeJA counteracted the inhibitory effects of NaCl by increasing relative water content, soluble sugar content and photosynthesis rate.
AB - Salt stress caused by high soil salinity is one of the most serious limiting factors threatening crop production in many parts of the world. To alleviate stressful conditions such as salinity, various plant growth regulators, such as jasmonates, are involved. In the present study, the effect of exogenously applied methyl jasmonate (MeJA) on physiological and biochemical characteristics of rapeseed (Brassica napus L. cv. Talaye) was studied in combination with different concentrations of NaCl under greenhouse conditions. Plants treated only with NaCl stress showed a significant decrease in growth parameters and photosynthesis rate and a significant increase in CO2 compensation point, respiration rate, soluble sugar content, malondialdehyde content, proline content and antioxidant enzymes activities when compared with the control. Exogenously applied MeJA mitigated the inhibitory effect of salt stress on these variables at all NaCl levels. Exogenously applied MeJA counteracted the inhibitory effects of NaCl by increasing relative water content, soluble sugar content and photosynthesis rate.
KW - Growth and biological criteria
KW - Methyl jasmonate
KW - NaCl stress
KW - Rapeseed
KW - Stress alleviation
U2 - 10.1016/j.sajb.2017.11.018
DO - 10.1016/j.sajb.2017.11.018
M3 - Article
AN - SCOPUS:85038429085
SN - 0254-6299
VL - 115
SP - 5
EP - 11
JO - South African Journal of Botany
JF - South African Journal of Botany
ER -