摘要
为考察重金属Cd对於术Atractylodes macrocephala cv.Yuzhu种子萌发及其生理指标的影响,以清水(0mg·L^(-1))作为对照,用0.1、1.0、5.0、10.0、30.0、50.0、100.0 mg·L^(-1)CdCl_(2)(以Cd^(2+)计)溶液对於术种子进行浸泡处理,然后测定於术种子的发芽势、发芽率、芽长、根长、根系活力、硝酸还原酶含量、可溶性糖含量和可溶性蛋白含量。研究结果表明,当Cd浓度为0~10 mg·L^(-1)时,可以促进於术种子的萌发,提高於术的发芽势和发芽率,促进於术幼芽与幼根的生长,同时也提高於术根系活力、硝酸还原酶含量、可溶性糖含量和可溶性蛋白含量;但是,高浓度Cd(大于10 mg·L^(-1))可抑制於术种子的萌发,降低於术的发芽势和发芽率,抑制於术幼芽与幼根的生长,降低於术根系活力、硝酸还原酶含量、可溶性糖含量和可溶性蛋白含量。本研究结果有助于明晰不同浓度Cd对於术种子的萌发及生理指标的影响,并对於术品质调控有一定参考意义。
Atractylodes macrocephala ‘Yuzhu’ seeds collected from Lin’an, Zhejiang province were soaked in 0.1, 1.0, 5.0, 10, 30, 50, 100 mg/L of CdCl_(2) and with water as control. Determinations were carried out on germination potential, germination percentage, shoot length, root length, root activity, nitrate reductase content, soluble sugar content and soluble protein content. The results showed that 0-10 mg/L of Cdcould promote the germination of seeds, increase the germination potential and rate, promote the growth of shoot and root, and also increase the activity of root, nitrate reductase content, soluble sugar content and soluble protein content. However, high concentration of Cd^(2+)(more than 10 mg/L) could inhibit the germination of seed, reduce the germination potential and germination rate, inhibit the growth of shoots and young roots, and reduce the activity of roots, nitrate reductase content, soluble sugar content and soluble protein content.
作者
周海珺
杜佳鑫
杜向标
白岩
ZHOU Hai-jun;DU Jia-xin;DU Xiang-biao;BAI Yan(Longquan Urban Forestry Station of Zhejiang,Longquan 323700,China;Longquan Jianchi Sub-district Office of Zhejiang,Longquan 323700,China;College of Food and Health/Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine,Zhejiang A&F University,Hangzhou 311300,China)
出处
《浙江林业科技》
2022年第6期34-39,共6页
Journal of Zhejiang Forestry Science and Technology
关键词
於术
种子
萌发
Cd^(2+)浓度
生理指标
Atractylodes macrocephala’Yuzhu’
seed
germination
concentration of cadmium
physiological trait
