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典型文献
低剂量镧对植物暗形态建成的影响
文献摘要:
稀土元素(Rare earth elements,REEs)因其低剂量能够促进植物种子萌发、营养生长、生殖生长和产量形成而被应用于农业.暗形态建成作为种子萌发后所经历的第一个发育阶段,是保证植物出土后正常生长的必要条件.然而,REEs对暗形态建成的影响鲜见报道.本文分别以农业常用镧(La(Ⅲ))和模式植物拟南芥为REEs和植物代表,通过测定La(Ⅲ)处理后野生型拟南芥(Col-0)暗形态指标,得出低剂量(15,30,45和55 μmol·L-1)La(Ⅲ)影响Col-0暗形态建成,表现为下胚轴长度缩短、顶端弯钩弯曲角度增大和原叶绿素酸酯含量降低,且La(Ⅲ)浓度越高,下胚轴长度越短,顶端弯钩弯曲角度增幅先增后降,原叶绿素酸酯含量降幅增加至平稳.实时荧光定量PCR和蛋白印记结果显示,15,30,45和55 μmol·L-1 La(Ⅲ)处理增加暗下生长Col-0光敏色素相互作用因子3(PIF3)转录水平和蛋白水平.La(Ⅲ)作用于PIF3突变体后,其下胚轴长度、原叶绿素酸酯含量均高于同浓度La(Ⅲ)处理的Col-0相应含量,顶端弯钩弯曲角度低于同浓度La(Ⅲ)处理的Col-0的弯曲角度.通过对比Col-0和PIF3突变体的暗形态指标,得出La(Ⅲ)通过增强拟南芥PIF3转录水平和PIF3蛋白水平而影响其暗形态建成.
文献关键词:
稀土元素;镧;PIF3;暗形态建成
作者姓名:
刘腊梅;王象;赫鼎;盛兰娣;黄晓华;王丽红
作者机构:
江南大学江苏厌氧生物技术重点实验室,环境与土木工程学院,江苏无锡214122;南京师范大学江苏省生物医用功能材料协同创新中心,化学与材料科学学院,江苏南京210023
文献出处:
引用格式:
[1]刘腊梅;王象;赫鼎;盛兰娣;黄晓华;王丽红-.低剂量镧对植物暗形态建成的影响)[J].中国稀土学报,2022(01):144-152
A类:
B类:
对植,暗形态建成,稀土元素,Rare,earth,elements,REEs,植物种子,种子萌发,营养生长,生殖生长,产量形成,所经,发育阶段,出土,鲜见,见报,La,拟南芥,野生型,Col,形态指标,下胚轴长度,顶端,弯曲角度,叶绿素,含量降低,越短,印记,光敏色素,相互作用因子,PIF3,转录水平,突变体
AB值:
0.240593
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