Effects of Neodymium on Nitrogen Metabolism of Plantlet Loquat in Vitro

• 作 者: 万志刚 宋卫平 俞明亮 洪法水 顾福根 苏国兴 赵密珍
• 机 构: College of Life Sciences, Suzhou University, Suzhou 215006, China,College of Life Sciences, Suzhou U
• 出 处: Journal of Rare Earths
• 发表日期: 2004年03期
• 关键词: agricultural biology neodymium loquat plantlet in vitro rooting nitrogen metabol

The effect of NdCl_3 on the rooting and nitrogen metabolism of loquat in vitro was studied when NdCl_3 was added to the rooted medium. The results show that 0.4 μmol·L~(-1) NdCl_3 in the rooted medium can obviously increase the rooting rate, length of root and fresh weight of roots, and enhance the activities of nitrate reductase, glutamine synthetase, glutamate dehydrogenase in the root system and in the leaves. The transformation of NO_3~- to NH_4~+ in root system and leaves are promoted and the nitrogen metabolism is accelerated with 0.4 μmol·L~(-1) NdCl_3 treatment.

The effect of NdCl_3 on the rooting and nitrogen metabolism of loquat in vitro was studied when NdCl_3 was added to the rooted medium. The results show that 0.4 μmol·L -1 NdCl_3 in the rooted medium can obviously increase the rooting rate, length of root and fresh weight of roots, and enhance the activities of nitrate reductase, glutamine synthetase, glutamate dehydrogenase in the root system and in the leaves. The transformation of NO_3 ~ - to NH_4 ~ + in root system and leaves are promoted and the nitrogen metabolism is accelerated with 0.4 μmol·L -1 NdCl_3 treatment.