GAN Yonghui,JIANG Xiaotong.Effects of Selenium Application on the Accumulation of Lead and Mercury in Anoectochilus roxburghii[J].Northern Horticulture,2026,(13):63-69.[doi:10.11937/bfyy.20254471]
施硒对金线莲铅、汞积累的影响
- Title:
- Effects of Selenium Application on the Accumulation of Lead and Mercury in Anoectochilus roxburghii
- 文章编号:
- 1001-0009(2026)13-0063-07
- Keywords:
- Anoectochilus roxburghii; sodium selenite; lead; mercury; stress resistance
- 分类号:
- S567.5
- 文献标志码:
- A
- 摘要:
- 以‘红霞’金线莲为试材，采用不同剂量亚硒酸钠进行种苗繁殖培养后林下移栽种植，研究在林下种植植株体内铅和汞的积累情况下，硒对植株铅、汞吸收的影响，以期为安全铅、汞含量金线莲植株栽培生产提供参考依据。结果表明:培养基施用5.5～8.0 mg·L-1硒元素进行培养繁殖苗后林下移栽种植，显著提高植株成活率和产量，最高分别提高15.2%和14.9%；该浓度硒施用显著抑制金线莲植株对铅和汞的吸收与转运，最高分别降低吸收率10.2%和23.5%、向地上部转运效率19.8%和21.2%；施用5.5 mg·L-1浓度硒极显著降低植株细胞膜脂过氧化产物丙二醛含量18.2%、极显著提高脯氨酸含量35.5%。综上，金线莲培养基施硒繁殖可提高种苗在林下移栽环境的抗逆性、增加其产量，且减少植株对铅和汞的吸收和转运。
- Abstract:
- Taking ‘Hongxia’ Anoectochilus roxburghii as the test material,the seedlings were cultivated by adding different doses of sodium selenite for propagation,and then transplanted and planted in the forest area.The effects of selenium on the absorption of lead and mercury by the plants when lead and mercury were accumulated in the plants′ bodies were investigated,in order to provide a reference for the cultivation and production of safe lead and mercury content on Anoectochilus roxburghii.The results showed that applying 5.5-8.0 mg·L-1 selenium to the culture medium for propagating seedlings and planting them under the forest significantly increased plant survival rate and yield,with the highest increases of 15.2% and 14.9%.Significantly inhibited the absorption and transport of lead and mercury by the plants,reducing absorption rates by 10.2% and 23.5%,and decreasing their above ground transport efficiency by 19.8% and 21.2%.The application of 5.5 mg·L-1 selenium significantly reduced the content of malondialdehyde (MDA) by 18.2% and significantly increased the content of proline by 35.5%.The comprehensive results indicated that selenium application in the culture medium of Anoectochilus roxburghii could improve the stress resistance of seedlings in the understory transplanting environment,increased their yield,and reduced the absorption and transport of lead and mercury by plants.
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备注/Memo
第一作者简介：甘勇辉(1967-)，男，本科，副教授，现主要从事植物栽培与生理生态等研究工作。E-mail:yhgfjzz@163.com.基金项目：福建省科技计划资助项目(2018N2002);漳州市自然科学基金资助项目(ZZ2019J08)。收稿日期：2025-12-31