Effects of irradiance on growth, photosynthetic characteristics and artemisinin content of Artemisia annua L.
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With an increase in growth irradiance (from 15 to 100 % of full sunlight, I15 to I100), the maximum net photosynthetic rate (P max), compensation (CI) and saturation irradiances of A. annua increased. At full sunlight, A. annua had a high capacity of photosynthesis, while at low irradiance it maintained a relatively high P max with a low CI. The height and diameter growth, total and leaf biomass, and artemisinin content of A. annua decreased with the decrease in irradiance, which might be connected with lower photosynthesis at lower than at higher irradiance. Irradiances changed biomass allocations of A. annua. The leaf/total mass ratio of A. annua increased with decreasing irradiance, but the root/total mass ratio and root/above-ground mass generally increased with increasing irradiance. Thus A. annua can grow in both weak and full sunlight. However, high yield of biomass and artemisinin require cultivation in an open habitat with adequate sunshine.
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Increased illumination or sunlight results in a higher yield of artemisinin.
“It has also been observed that increased illumination or sunlight results in a higher yield of artemisinin [331,332,333].”
From The Biosynthesis of Artemisinin (Qinghaosu) and the Phytochemistry of Artemisia annua L. (Qinghao) (2010) · cites this paper as [332]
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The Biosynthesis of Artemisinin (Qinghaosu) and the Phytochemistry of Artemisia annua L. (Qinghao)
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- Authors
- Wang, M. L., Jiang, Y. S., Wei, J. Q., Wei, X., Qi, X. X., Jiang, S. Y., & Wang, Z. M.
- Affiliations
- Chinese Academy of Sciences (CN)
- Venue
- Photosynthetica
- Publisher
- Institute of Experimental Botany
- Published
- 2008-03-01
- Volume
- 46
- Issue
- 1
- ISSN
- 0300-3604 (ISSN-L)
- 1573-9058
- OpenAlex
- W2023854366
- Cited by
- 23
- References
- 15
- Citations by year
- 2025: 1 · 2024: 2 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 2 · 2018: 1 · 2016: 2 · 2015: 1 · 2013: 1 · 2012: 3
- FWCI
- 2.82
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Photosynthetica (publishedVersion)
- Funders
- National Natural Science Foundation of China (30660222)
- Chinese Academy of Sciences
- Key Technologies Research and Development Program
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Greenhouse Technology and Climate Control
- Keywords
- Artemisia annua, irradiance, photosynthesis, artemisinin content, plant growth, biomass allocation, compensation irradiance, saturation intensity, leaf biomass, root biomass
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