海带病烂发生过程中的生理生化变化研究——Ⅰ.糖、蛋白、总抗氧化能力、SOD的变化

Studies on Physiological and Biochemical Changes of Laminariajaponica During the Occurrence of Rot Disease——Ⅰ. Changes of Soluble Sugar, Soluble Protein,Total Antioxidative Ability and SOD Activity

为了研究海带自然病烂过程中生理、生化变化,在实验生态条件下,人工促使海带病烂,每隔3d取样,对幼苗可溶性糖含量、可溶性蛋白含量、总抗氧化能力、超氧化物歧化酶(superoxidedismutase,SOD)活性的变化进行连续检测。结果表明,在海带幼苗由健康到病烂的过程中,可溶性糖含量表现为逐渐下降的趋势;可溶性蛋白含量先升高后逐渐下降;总抗氧化能力和超氧化物歧化酶(SOD)的活性呈现出先升高后降低的变化规律。

In order to study the physiological and biochemical Changes of Laminaria japonica in the process of rot disease, Laminaria japonica was induced to rot disease under the experimentally ecological conditions, and the changes of 4 indices (including soluble sugar, soluble protein, total antioxidative ability and superoxide dismutase (SOD)) were measured during the experiment. It is shown from the experiment results that when the healthy sporelings became rotten gradually, the content of soluble sugar showed a decreasing tendency; the content of soluble protein increased at first and then gradually decreased; and the total antioxidative ability and SOD activity had a tendency similar to that of the soluble protein content.