Alleviating Effects of Pr~(3+) on the Cadmium Stress in Rice Seeds Germination

作者：Ding Jie · 发表于：Acta Agriculturae Boreali-Sinica · 年份：2009 · 被引用次数：1 · 研究领域：Heavy Metals in Plants

An experiment with Neixiangyou No.8518 rice seeds was carried out to study the effects of Pr on the seed germination and physiological and biochemical changes of the seedlings under cadmium stress.The results showed that low Pr concentration,specially for 40 mg/L Pr,was beneficial to alleviate the harmful effects of Cd stress on germination and seeding,which promoted seed germination,increased the weight of seedlings and the activities of SOD and G-POD,and reduced the MDA content.However,the alleviated actions of Pr to Cd faded away with the advancement of Pr concentration.When the concentration of Pr came to 200 mg/L,the Pr cooperated with the Cd to aggravate the poisoning action of the rice seedling.