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| Accumulation and physio-biochemical responses of Brassia campestris L. to Cs stress |
| Received:May 11, 2017 |
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| KeyWord:Brassia campestris L.;Cs stress;physio-biochemical responses;characteristics of enrichment |
| Author Name | Affiliation | E-mail | | HONG Xiao-xi | College of Water Sciences, Beijing Normal University, Beijing 100875, China | | | YUAN Jing | College of Water Sciences, Beijing Normal University, Beijing 100875, China | | | ZHENG Xian-ming | College of Water Sciences, Beijing Normal University, Beijing 100875, China | | | XIA Meng | College of Water Sciences, Beijing Normal University, Beijing 100875, China | | | DING Ai-zhong | College of Water Sciences, Beijing Normal University, Beijing 100875, China | | | DOU Jun-feng | College of Water Sciences, Beijing Normal University, Beijing 100875, China | doujf@bnu.edu.cn |
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| Abstract: |
| Herein we planted Brassia campestris L. in a plant management system via the potting method. After 90 days, we examined the physiological indices of Brassia campestris L. and the enrichment of each organ under different Cs stresses in order to discuss the response and accumulations. Our results showed that low Cs concentrations (Cs ≤ 100 mg·kg-1) had certain promotional effects on plant height, biomass, chlorophyll content, and POD activity, thus Brassia campestris L. had certain stress resistance. However, increasing Cs concentrations caused a decline in height, biomass, chlorophyll content, and POD activity. The adjustment mechanism was broken, and plant growth was inhibited. With an increase of Cs content in the soil, the accumulation in every organ also increased. In addition, Brassia campestris L. presented the following accumulation order:stem > leaf > root at Cs ≤ 100 mg·kg-1 in the soil and stem > leaf > root at 100 mg·kg-1 ≤ Cs ≤ 600 mg·kg-1 in the soil. These findings indicated that Brassia campestris L. had strong transportation capacity and great potential for phytoremediation of Cs polluted soils. |
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