Carbon isotope composition and leaf anatomy as a tool to characterize the photosynthetic mechanism of Artemisia annua L.
Open accessAbstract
Leaves of Artemisia annua L. are a plentiful source of artemisinin, a drug with proven effectiveness against malaria. The aim of this study was to classify the photosynthetic mechanism of A. annua through studies of the carbon isotope composition (delta 13C) and the leaf anatomy. A. annua presented a delta 13C value of - 31.76 ± 0.07, which characterizes the plants as a typical species of the C3 photosynthethic mechanism, considering that the average delta 13C values for C3 and C4 species are -28 and -14, respectively. The leaf anatomy studies were consistent with the delta 13C results, where, in spite of the existence of parenchymatic cells forming a sheath surrounding the vascular tissue, the cells do not contain chloroplasts or starch. This characteristic is clearly different from that of the Kranz anatomy found in C4 species.
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14C-labelling studies have confirmed IPP as a starting point for the biosynthetic pathway to artemisinin.
“14C-Labelling studies have confirmed the C5 terpenoid precursor IPP as a starting point for the biosynthetic pathway to artemisinin [288]”
From The Biosynthesis of Artemisinin (Qinghaosu) and the Phytochemistry of Artemisia annua L. (Qinghao) (2010) · cites this paper as [288]
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The Biosynthesis of Artemisinin (Qinghaosu) and the Phytochemistry of Artemisia annua L. (Qinghao)
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- Authors
- Marchese, J. A., Broetto, F., Ming, L. C., Ducatti, C., Rodella, R. A., Ventrella, M. C., Gomes, G. D. R., & Franceschi, L. D.
- Affiliations
- Universidade Estadual Paulista (Unesp) (BR)
- São Paulo State University, Brazil
- Universidade Federal de Viçosa (BR)
- Centro Federal de Educação Tecnológica do Paraná, Brazil
- Venue
- Brazilian Journal of Plant Physiology
- Publisher
- FapUNIFESP (SciELO)
- Published
- 2005-03
- Volume
- 17
- Issue
- 1
- Pages
- 187-190
- ISSN
- 0103-3131 (ISSN-L)
- 1677-0420
- OpenAlex
- W2054835890
- Cited by
- 17
- References
- 21
- Citations by year
- 2026: 1 · 2023: 1 · 2022: 2 · 2019: 1 · 2016: 1 · 2014: 2 · 2013: 1
- FWCI
- 1.27
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Brazilian Journal of Plant Physiology (publishedVersion, cc-by-nc)
- Americanae (AECID Library) (publishedVersion, other-oa)
- Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista) (submittedVersion, other-oa)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
- The Scientific Electronic Library Online (Fundação de Amparo à Pesquisa do Estado de São Paulo) (submittedVersion, other-oa)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Plant Water Relations and Carbon Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Plant Taxonomy and Phylogenetics
- Keywords
- Artemisia annua, δ13C, leaf anatomy, photosynthetic pathway, C3 photosynthesis, C4 photosynthesis, Kranz anatomy, artemisinin, chloroplasts
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