Mathad Pratima, Siddaling N C
Department of Post Graduate Studies and Research in Botany, Gulbarga University, Gulbarga, India.
J Environ Biol. 2009 May;30(3):451-4.
Antioxidative status study was made in cotyledons of 7days old as well as in leaf and stem tissues of 30 and 60 days old pigeon pea (Cajanus cajan) namely Asha and Maruti subjected to different doses of endosulfan in the range 0.1-1.0%. The results revealed that the activities of the antioxidative enzymes and the antioxidant contents such as the super oxide dismutase (SOD), peroxidase (POD), reducing power (RP), ascorbic acid (AsA) and total phenols (TP) increased with increase in the concentrations of endosulfan in different parts of the plants in both the varieties. It was interesting to note that the increase in the antioxidative enzymes and the antioxidant contents were higher in leaves than in stem and cotyledons in both the plant varieties. The Asha showed lower activity of SOD and higher activity of POD than the Maruti. The RP and AsA contents were higher whereas the TP content was lower in Asha than Maruti. The observed variations in the activities of the oxidative enzymes and the antioxidant contents of the plants treated with the varying concentration of endosulfan indicated that the antioxidative system in the plants plays a fundamental role in minimizing the deleterious effects of the oxidative stress in the two varieties of Cajanus cajan.
对7日龄木豆（Cajanus cajan）品种Asha和Maruti的子叶以及30日龄和60日龄木豆的叶片和茎组织进行了抗氧化状态研究，这些组织分别用0.1%-1.0%不同剂量的硫丹处理。结果表明，在两个品种的植物不同部位，随着硫丹浓度的增加，抗氧化酶活性和抗氧化剂含量如超氧化物歧化酶（SOD）、过氧化物酶（POD）、还原力（RP）、抗坏血酸（AsA）和总酚（TP）均增加。值得注意的是，在两个植物品种中，叶片中抗氧化酶和抗氧化剂含量的增加高于茎和子叶。与Maruti相比，Asha的SOD活性较低，POD活性较高。Asha的RP和AsA含量较高，而TP含量低于Maruti。用不同浓度硫丹处理的植物中氧化酶活性和抗氧化剂含量的观察变化表明，植物中的抗氧化系统在最小化两种木豆品种氧化应激的有害影响方面起着重要作用。
