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Transcript and Metabolite Profiling for the Evaluation of Tobacco Tree and Poplar as Feedstock for the Bio-based Industry
Published on: May 16, 2014
[Carbonyl compounds emission and uptake by plant: Research progress]
Jian Li1, Jing Cai, Liu-Shui Yan
1Jiangxi Province Key Laboratory for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, China. lijian@nchu.edu.cn
Summary
Plants effectively purify air by absorbing carbonyl compounds through their leaves, metabolizing them internally. This process, influenced by ambient concentrations and a specific compensation point, offers potential for phytoremediation of atmospheric pollutants.
Area of Science:
- Environmental Science
- Plant Physiology
- Atmospheric Chemistry
Context:
- Plants play a crucial role in atmospheric purification, particularly concerning carbonyl compounds.
- Bidirectional exchange of carbonyl compounds between plants and the atmosphere is a significant environmental process.
- Understanding plant uptake and metabolism of airborne pollutants is vital for air quality research.
Purpose:
- To review current research on carbonyl compound emission and uptake by plants.
- To discuss the compensation point and its role in predicting plant-atmosphere exchange of carbonyls.
- To summarize analytical methods for determining carbonyl compounds in plants and emissions.
Summary:
- Plants absorb airborne carbonyl compounds primarily through leaf stomata and the stratum corneum.
- Internal plant metabolism converts carbonyl compounds into organic acids, carbohydrates, amino acids, and CO2.
- The compensation point and ambient concentrations help predict the direction of carbonyl exchange between plants and the atmosphere.
Impact:
- Highlights the principal mechanisms of air purification by plants concerning aldehydes.
- Identifies key analytical techniques like DNPH/HPLC/UV and PFPH/GC/MS for carbonyl compound determination.
- Suggests future research directions, including method optimization, system studies (plant-soil), expanding detected species, screening efficient plant species, and promoting phytoremediation.
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