Method for screening super accumulative plant in flower plant

A super-accumulative and plant-based technology, applied in the field of phytoremediation, can solve the problems of limited species of super-accumulative plants, and achieve the effect of not causing secondary pollution, strong operability, and beautifying the environment

Inactive Publication Date: 2007-10-10
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] So far, the types of hyperaccumulative plants that have been reported are still very limited. It is necessary to find more types and more effective hyperaccumulative plants for phytoremediation of contaminated soil. At present, there is no systematic report on flower plants in this regard.

Method used

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  • Method for screening super accumulative plant in flower plant
  • Method for screening super accumulative plant in flower plant
  • Method for screening super accumulative plant in flower plant

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: to the pot plant concentration gradient experiment of Mirabilis mirabilis

[0024] Cd is a non-essential element for organisms that is toxic to plant growth and has "three effects" on the body. It is a representative pollutant in Liaoning and needs to be treated urgently.

[0025] The potting experiment site is in the net room of Shenyang Institute of Applied Ecology, Chinese Academy of Sciences. The site is in the center of Shenyang. There are no pollution sources around the experimental site, and it is an area not polluted by heavy metals. The total annual radiation dose is 520~544KJ / cm 2 , frost-free period 127 ~ 164d. The potting test soil was collected from the surface soil in the pollution-free area of ​​the Shenyang Ecological Station of the Chinese Academy of Sciences, and the soil type was meadow brown soil.

[0026] The herbaceous flowers and plants were planted in potted soil with high concentration of heavy metals; the flowers and plants with...

Embodiment 2

[0034] Embodiment 2: to the hydroponic experiment of Mirabilis

[0035] Cd and Pb are the main heavy metal pollutants in the environment, and they often exist in nature. Therefore, the herbaceous flower plants are planted in the soil with high concentration of heavy metal pollution in the form of potted plants, and the flower plants with strong tolerance and accumulation are screened out. ; Then adopt the method of hydroponic experiment, cultivate Mirabilis seedlings in the environment of Cd-Pb compound pollution.

[0036] Robust and uniform-looking one-month-old seedlings were picked and their roots were submerged in 0.1% KMnO 4 The solution is 10 minutes, which can sterilize and promote plant rooting, and then rinse off KMnO with distilled water 4 Afterwards, it was cultured in a 300mL Erlenmeyer flask. In the pre-cultivation stage, the Erlenmeyer flask only contained nutrient solution. In order to avoid the interference between ions, only basic nutrients were selected in t...

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Abstract

A method for screening out super-accumulated plants from flowers and plants includes applying preliminary screening experiment to select out flowers and plants with high tolerance and high accumulation property and then applying pot culturing and water planting experiment to verify that flowers and plants have character of super-accumulated plant and have repair potentiality of plant.

Description

technical field [0001] The invention relates to phytoremediation technology, in particular to a method for screening hyperaccumulative plants from flower plants. Background technique [0002] The remediation of contaminated soil has become an increasingly active field of environmental science research, and it is also a worldwide problem, especially the remediation of heavy metal-contaminated soil as the main source of inorganic pollution [Document 1: Gu Jiguang, Zhou Qixing, Wang Xin. 2003. Soil heavy metals Pollution control approaches and research progress. Journal of Applied Basic and Engineering Science, 11(2): 143-151; Document 2: Luo Yongming. 1999. Phytoremediation of metal-contaminated soil. Soil, (5): 261-265]. After continuous exploration in recent years, the remediation technology of contaminated soil has developed rapidly, mainly including physical remediation technology, chemical remediation technology, and biological remediation. The principle of traditional re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 周启星刘家女王晓飞魏树和任丽萍
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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