Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb.
The carbon sequestration and oxygen release of landscape plants are dominant ecological service functions, which can play an important role in reducing greenhouse gases, improving the urban heat island effect and achieving carbon peaking and carbon neutrality. In the present study, we are choosing &...
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MDPI AG
2023-07-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/14/2689 |
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| author | Zhouli Liu Jing An Qingxuan Lu Chuanjia Yang Yitao Mu Jianbing Wei Yongxia Hou Xiangyu Meng Zhuo Zhao Maosen Lin |
| author_facet | Zhouli Liu Jing An Qingxuan Lu Chuanjia Yang Yitao Mu Jianbing Wei Yongxia Hou Xiangyu Meng Zhuo Zhao Maosen Lin |
| author_sort | Zhouli Liu |
| collection | DOAJ |
| description | The carbon sequestration and oxygen release of landscape plants are dominant ecological service functions, which can play an important role in reducing greenhouse gases, improving the urban heat island effect and achieving carbon peaking and carbon neutrality. In the present study, we are choosing <i>Lonicera japonica</i> Thunb. as a model plant to show the effects of Cd stress on growth, photosynthesis, carbon sequestration and oxygen release characteristics. Under 5 mg kg<sup>−1</sup> of Cd treatment, the dry weight of roots and shoots biomass and the net photosynthetic rate (P<sub>N</sub>) in <i>L. japonica</i> had a significant increase, and with the increase in Cd treatment concentration, the dry weight of roots and shoots biomass and P<sub>N</sub> in the plant began to decrease. When the Cd treatment concentration was up to 125 mg kg<sup>−1</sup>, the dry weight of root and shoots biomass and P<sub>N</sub> in the plant decreased by 5.29%, 1.94% and 2.06%, and they had no significant decrease compared with the control, indicating that the plant still had a good ability for growth and photoenergy utilization even under high concentrations of Cd stress. The carbon sequestration and oxygen release functions in terms of diurnal assimilation amounts (<i>P</i>), carbon sequestration per unit leaf area (W<sub>CO<sub>2</sub></sub>), oxygen release per unit leaf area (W<sub>O<sub>2</sub></sub>), carbon sequestration per unit land area (P<sub>CO<sub>2</sub></sub>) and oxygen release per unit land area (P<sub>O<sub>2</sub></sub>) in <i>L. japonica</i> had a similar change trend with the photosynthesis responses under different concentrations of Cd treatments, which indicated that <i>L. japonica</i> as a landscaping Cd-hyperaccumulator, has a good ability for carbon sequestration and oxygen release even under high concentrations of Cd stress. The present study will provide a useful guideline for effectively developing the ecological service functions of landscaping hyperaccumulators under urban Cd-contaminated environment. |
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| format | Article |
| id | doaj.art-613544bab5774b558965545d95758f19 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T00:42:57Z |
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| spelling | doaj.art-613544bab5774b558965545d95758f192023-11-18T21:00:37ZengMDPI AGPlants2223-77472023-07-011214268910.3390/plants12142689Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb.Zhouli Liu0Jing An1Qingxuan Lu2Chuanjia Yang3Yitao Mu4Jianbing Wei5Yongxia Hou6Xiangyu Meng7Zhuo Zhao8Maosen Lin9College of Life Science and Engineering, Shenyang University, Shenyang 110044, ChinaKey Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, ChinaCollege of Life Science and Engineering, Shenyang University, Shenyang 110044, ChinaDepartment of General Surgery, Shengjing Hospital, China Medical University, Shenyang 110004, ChinaCollege of Municipal and Environmental Engineering, Shenyang Urban Construction University, Shenyang 110167, ChinaCollege of Life Science and Engineering, Shenyang University, Shenyang 110044, ChinaCollege of Life Science and Engineering, Shenyang University, Shenyang 110044, ChinaCollege of Life Science and Engineering, Shenyang University, Shenyang 110044, ChinaCollege of Life Science and Engineering, Shenyang University, Shenyang 110044, ChinaCollege of Water Conservancy, Shenyang Agricultural University, Shenyang 110161, ChinaThe carbon sequestration and oxygen release of landscape plants are dominant ecological service functions, which can play an important role in reducing greenhouse gases, improving the urban heat island effect and achieving carbon peaking and carbon neutrality. In the present study, we are choosing <i>Lonicera japonica</i> Thunb. as a model plant to show the effects of Cd stress on growth, photosynthesis, carbon sequestration and oxygen release characteristics. Under 5 mg kg<sup>−1</sup> of Cd treatment, the dry weight of roots and shoots biomass and the net photosynthetic rate (P<sub>N</sub>) in <i>L. japonica</i> had a significant increase, and with the increase in Cd treatment concentration, the dry weight of roots and shoots biomass and P<sub>N</sub> in the plant began to decrease. When the Cd treatment concentration was up to 125 mg kg<sup>−1</sup>, the dry weight of root and shoots biomass and P<sub>N</sub> in the plant decreased by 5.29%, 1.94% and 2.06%, and they had no significant decrease compared with the control, indicating that the plant still had a good ability for growth and photoenergy utilization even under high concentrations of Cd stress. The carbon sequestration and oxygen release functions in terms of diurnal assimilation amounts (<i>P</i>), carbon sequestration per unit leaf area (W<sub>CO<sub>2</sub></sub>), oxygen release per unit leaf area (W<sub>O<sub>2</sub></sub>), carbon sequestration per unit land area (P<sub>CO<sub>2</sub></sub>) and oxygen release per unit land area (P<sub>O<sub>2</sub></sub>) in <i>L. japonica</i> had a similar change trend with the photosynthesis responses under different concentrations of Cd treatments, which indicated that <i>L. japonica</i> as a landscaping Cd-hyperaccumulator, has a good ability for carbon sequestration and oxygen release even under high concentrations of Cd stress. The present study will provide a useful guideline for effectively developing the ecological service functions of landscaping hyperaccumulators under urban Cd-contaminated environment.https://www.mdpi.com/2223-7747/12/14/2689heavy metal<i>Lonicera japonica</i> Thunb.carbon sequestrationoxygen release |
| spellingShingle | Zhouli Liu Jing An Qingxuan Lu Chuanjia Yang Yitao Mu Jianbing Wei Yongxia Hou Xiangyu Meng Zhuo Zhao Maosen Lin Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb. Plants heavy metal <i>Lonicera japonica</i> Thunb. carbon sequestration oxygen release |
| title | Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb. |
| title_full | Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb. |
| title_fullStr | Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb. |
| title_full_unstemmed | Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb. |
| title_short | Effects of Cadmium Stress on Carbon Sequestration and Oxygen Release Characteristics in A Landscaping Hyperaccumulator—<i>Lonicera japonica</i> Thunb. |
| title_sort | effects of cadmium stress on carbon sequestration and oxygen release characteristics in a landscaping hyperaccumulator i lonicera japonica i thunb |
| topic | heavy metal <i>Lonicera japonica</i> Thunb. carbon sequestration oxygen release |
| url | https://www.mdpi.com/2223-7747/12/14/2689 |
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