TY - JOUR AU - Kumar, Sandeep AU - Sirhindi, Geetika AU - Bhardwaj, Renu AU - Kumar, Manish T1 - Brassinosteroids Denigrate the Seasonal Stress through Antioxidant Defense System in Seedlings of Brassica juncea L. JO - Journal of Stress Physiology & Biochemistry Y1 - 2014 VL - 10 IS - 2 SP - 74 EP - 83 UR - http://www.jspb.ru/issues/2014/N2/JSPB_2014_2_74-83.pdf KW - Antioxidant enzymes KW - Brassica juncea KW - Brassinosteroids KW - ROS KW - Seasonal stress N1 - Owner: Алексей N1 - Added to JabRef: 2014.04.28 N2 - The present work has been undertaken to study the effect of exogenously application of 24-epiBL and 28-homoBL on soluble protein, proline contents and antioxidant defense system of Brassica juncea L. RLM 619 under the influence of seasonal stress. It was observed that 24-epiBL and 28-homoBL treatment enhance the soluble protein, dry weight and shoot length of B. juncea seedlings under seasonal stress. If seeds treated with the different concentrations (10-6, 10-8 and 10-10 M) of 24-epiBL and 28-homoBL revealed batter growth, protein and proline contents as compare to untreated seedlings. Similarly the activities of antioxidant enzymes SOD, CAT, APOX, DHAR, PPO and Auxinases were enhanced by the application of different concentration of both brassinosteroids, whereas MDA content was decrease with both brassinosteroids treatments. Then we have concluded that both brassinolides have the seasonal stress ameliorative properties in B. juncea seedlings grown under the influence of seasonal stress. This study culminates to the role of brassinolides as an anti-stress property for protection of plant from various types of stresses. ER -