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美人蕉不同生长期生物量分配格局与重金属累积、分配特征

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王涛, 段积德, 王锦霞, 刘俊, 胡劲松. 美人蕉不同生长期生物量分配格局与重金属累积、分配特征[J]. 环境化学, 2020, (4): 1031-1038. doi: 10.7524/j.issn.0254-6108.2019070807
引用本文: 王涛, 段积德, 王锦霞, 刘俊, 胡劲松. 美人蕉不同生长期生物量分配格局与重金属累积、分配特征[J]. 环境化学, 2020, (4): 1031-1038. doi: 10.7524/j.issn.0254-6108.2019070807
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WANG Tao, DUAN Jide, WANG Jinxia, LIU Jun, HU Jinsong. Biomass allocation pattern of Canna indica L. at different growthstages and its accumulation and distribution characteristics of heavy metals[J]. Environmental Chemistry, 2020, (4): 1031-1038. doi: 10.7524/j.issn.0254-6108.2019070807
Citation: WANG Tao, DUAN Jide, WANG Jinxia, LIU Jun, HU Jinsong. Biomass allocation pattern of Canna indica L. at different growthstages and its accumulation and distribution characteristics of heavy metals[J]. Environmental Chemistry, 2020, (4): 1031-1038. doi: 10.7524/j.issn.0254-6108.2019070807
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美人蕉不同生长期生物量分配格局与重金属累积、分配特征

  • 1. 南华大学衡阳医学院, 衡阳, 421001;

  • 2. 有色金属矿区耕地重金属污染生态阻抗技术研究衡阳市重点实验室, 衡阳, 421001;

  • 3. 生物毒理与生态修复衡阳市重点实验室, 衡阳, 421001;

  • 4. 生态健康与人类重要疾病防控湖南省高校重点实验室, 衡阳, 421001

    • 通讯作者: 刘俊, E-mail: nhuliujun@126.com ; 
  • 基金项目:

    湖南省教育厅重点项目（15A168），湖南省自然基金（2018JJ2325，2016JJ2103），衡阳市科技局项目（2018KJ111，2016KF14）和南华大学大学生研究性学习和创新性实验计划（2018XJXZ203，2018XJXZ396，X2019170）资助.

Biomass allocation pattern of Canna indica L. at different growthstages and its accumulation and distribution characteristics of heavy metals

  • 1. Hengyang Medical College, University of South China, Hengyang, 421001, China;

  • 2. The Key Laboratory of Hengyang City on Ecological Impedance Technology of Heavy Metal Pollution in Cultivated Soil of Nonferrous Metal Mining Area, Hengyang, 421001, China;

  • 3. The Key Laboratory of Hengyang City on Biological Toxicology and Ecological Restoration, Hengyang, 421001, China;

  • 4. The Key Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province Department of Education, Hengyang, 421001, China

    • Corresponding author: LIU Jun, nhuliujun@126.com ; 
  • Fund Project: Supported by Scientific Research Fund of Hunan Provincial Education Department (15A168), Hunan Provincial Natural Science Foundation of China(2018JJ2325, 2016JJ2103),Project of Hengyang Science and Technology Bureau(2018KJ111,2016KF14) and Project of Undergraduate Research Learning and InnovativeExperimental of University of South China(2018XJXZ203,2018XJXZ396,X2019170).

  • 摘要: 为了探讨美人蕉不同生长期对土壤重金属的生态适应，通过盆栽试验探究了幼苗期、花蕾期、盛花期美人蕉植株的根系和地上部分的生物量及其累积重金属含量的特征与差异.结果表明，随美人蕉龄的增长，美人蕉整株生物量增长速度先快后慢，地上部分生长速度远高于根系，植株生物量分配格局逐渐向地上转移；美人蕉各生长期对As、Pb、Zn、Mg、Cd和Mn等重金属的富集能力各异，在幼苗期、花蕾期和盛花期对As、Pb、Zn、Mg的蓄积均为典型的根部积累型；对Cd和Mn的蓄积在幼苗期为根部积累型，在花蕾期和盛花期为地上积累型；美人蕉地上部分和根系累积的Cd、Pb、As含量分别高达11.096—25.692 mg·kg-1和13.503—20.923、9.206—24.57 mg·kg-1和51.126—161.783、0.914—1.447 mg·kg-1和1.228—7.254 mg·kg -1.美人蕉能修复复合重金属污染土壤.
    Abstract: To explore the ecological adaptation of Canna indica L. in different growth stages to soil heavy metals, the characteristics and differences of biomass and accumulated heavy metal content were analyzed in roots and above-ground parts of Canna indica L. plants at seedling stage, flower bud stage and flowering stage by pot experiment. The results showed that the growth rate of whole plant biomass was fast initialy and then slow. The growth speed of the above-ground part was much faster than that of roots. The biomass allocation pattern of the Canna indica L. plant gradually shifted to the above-ground part. The bioaccumulation capacities of heavy metals such as As, Pb, Zn, Mg, Cd and Mn were different at different developmental stages of Canna indica L.. The accumulation of As, Pb, Zn and Mg in the seedling stage, flower bud stage and flowering stage was of typical root accumulating type. The accumulation of Cd and Mn in Canna indica L. was root accumulating at the seedling stage, and it was above-ground accumulating type at the flower bud stage and flowering stage. The accumulated Cd, Pb and As contents in the above-ground part and the root of Canna indica L. were 11.096—25.692 mg·kg-1 and13.503—20.923, 9.206—24.57 mg·kg-1 and 51.126—161.783, 0.914—1.447 mg·kg-1 and 1.228—7.254 mg·kg-1, respectively. Canna indica L. could repair complex heavy metal contaminated soil.
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  • 收稿日期:  2019-07-08

美人蕉不同生长期生物量分配格局与重金属累积、分配特征

    通讯作者: 刘俊, E-mail: nhuliujun@126.com ; 
  • 1. 南华大学衡阳医学院, 衡阳, 421001;
  • 2. 有色金属矿区耕地重金属污染生态阻抗技术研究衡阳市重点实验室, 衡阳, 421001;
  • 3. 生物毒理与生态修复衡阳市重点实验室, 衡阳, 421001;
  • 4. 生态健康与人类重要疾病防控湖南省高校重点实验室, 衡阳, 421001
  • 收稿日期:  2019-07-08
基金项目:

湖南省教育厅重点项目（15A168），湖南省自然基金（2018JJ2325，2016JJ2103），衡阳市科技局项目（2018KJ111，2016KF14）和南华大学大学生研究性学习和创新性实验计划（2018XJXZ203，2018XJXZ396，X2019170）资助.

摘要: 为了探讨美人蕉不同生长期对土壤重金属的生态适应，通过盆栽试验探究了幼苗期、花蕾期、盛花期美人蕉植株的根系和地上部分的生物量及其累积重金属含量的特征与差异.结果表明，随美人蕉龄的增长，美人蕉整株生物量增长速度先快后慢，地上部分生长速度远高于根系，植株生物量分配格局逐渐向地上转移；美人蕉各生长期对As、Pb、Zn、Mg、Cd和Mn等重金属的富集能力各异，在幼苗期、花蕾期和盛花期对As、Pb、Zn、Mg的蓄积均为典型的根部积累型；对Cd和Mn的蓄积在幼苗期为根部积累型，在花蕾期和盛花期为地上积累型；美人蕉地上部分和根系累积的Cd、Pb、As含量分别高达11.096—25.692 mg·kg-1和13.503—20.923、9.206—24.57 mg·kg-1和51.126—161.783、0.914—1.447 mg·kg-1和1.228—7.254 mg·kg -1.美人蕉能修复复合重金属污染土壤.

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