[1]吕黛琳,刘杰,俞果,等.鸡冠花对Cd的耐受和富集特征[J].北方园艺,2020,44(17):66-73.[doi:10.11937/bfyy.20193742]
　LYU Dailin,LIU Jie,YU Guo,et al.Cadmium Accumulation and Tolerance in Celosia cristata L.[J].Northern Horticulture,2020,44(17):66-73.[doi:10.11937/bfyy.20193742]
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鸡冠花对Cd的耐受和富集特征

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第44卷 期数: 2020年17 页码: 66-73 栏目: 出版日期: 2020-09-15
Title:
Cadmium Accumulation and Tolerance in Celosia cristata L.
作者:
吕黛琳; 刘杰; 俞果; 蒋萍萍; 雷玲; 朱文杰
（桂林理工大学 环境污染控制理论与技术广西重点实验室，广西 桂林 541004）
Author(s):
LYU Dailin; LIU Jie; YU Guo; JIANG Pingping; LEI Ling; ZHU Wenjie
(Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology,Guilin University of Technology,Guilin,Guangxi 541004)
关键词:
Cd; 富集; 耐受; 鸡冠花
Keywords:
cadmium; accumulation; tolerance; Celosia cristata L.
DOI:
10.11937/bfyy.20193742
文献标志码:
A
摘要:
以鸡冠花为试材，采用盆栽试验的方法，研究了在0（对照）、1、3、5、10 mg?kg-1的浓度梯度范围内鸡冠花对土壤Cd的耐受和富集特征，以期为开发该植物用于Cd污染植物修复和植物Cd富集耐受机制研究提供参考依据。结果表明：与对照相比，在Cd投加量为1 mg?kg-1时，鸡冠花地上部与地下部的生物量无显著变化（P>0.05），Cd投加量达到3、5、10 mg?kg-1时，其地上部生物量显著下降（P<0.05）。当土壤中的Cd投加量为1、3、5、10 mg?kg-1时，其叶片Cd含量均大于100 mg?kg-1，且富集、转运系数大于1，满足Cd超富集植物标准。因此鸡冠花具备土壤镉污染修复的应用潜力，对于植物Cd耐受和富集机制研究也具有积极的意义。
Abstract:
Cadmium tolerance and accumulation of Celosia cristata L.was investigated using a pot experiment.With a view to providing a scientific basis for the development of this plant for Cd-contaminated phytoremediation and plant Cd enrichment tolerance mechanism.The plants grew in the soil amended with 0 (control),1,3,5,10 mg?kg-1 Cd.The results showed that the biomass of C.cristata were insignificantly different （P>0.05） at the lowest level of Cd supply (1 mg?kg-1).The biomass of the aboveground part decreased significantly （P<0.05） at the Cd supply level ranging from 3 mg?kg-1 to 10 mg?kg-1.The shoots Cd content was greater than 100 mg?kg-1,and the BCF and TF was greater than 1.When the Cd supply level ranging from 1 mg?kg-1 to 10 mg?kg-1 the shoots Cd content was greater than 100 mg?kg-1,and the BCF and TF was greater than 1,which met the criteria of Cd hyperaccumulators.Therefore,C.cristata exhibited the basic characteristics of Cd-hyperaccumulator.This species has great application potential to remediate Cd-contaminated soil.and could also aid the studies of Cd accumulation and tolerance mechanism.

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备注/Memo

第一作者简介：吕黛琳（1994-），女，黑龙江宝清人，硕士研究生，研究方向为土壤重金属污染植物修复。E-mail：lv.dailin@163.com.责任作者：刘杰（1977-），男，广西桂林人，博士，教授，现主要从事受损环境的生态修复与有害元素的生物地球化学等研究工作。E-mail：liujie@glut.edu.cn.基金项目：国家自然科学基金资助项目(41867022)；广西高等学校高水平创新团队及卓越学者计划资助项目（桂财教函[2018]319号）。收稿日期：2019-10-02

更新日期/Last Update: 2020-11-27