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Plant biochemistry and biosynthesis
Research Guide
What is Plant biochemistry and biosynthesis?
Plant biochemistry and biosynthesis is the study of biochemical pathways and enzymatic processes in plants that produce terpenoids, isoprenoids, flavonoids, and phenylpropanoids through routes such as the mevalonate pathway and MEP pathway.
This field encompasses 63,847 works focused on terpenoid biosynthesis, including the isoprenoid pathway, sesquiterpene synthases, triterpene biosynthesis, and MEP pathway optimization. Research examines metabolic engineering for plant volatile production and specific compounds like artemisinin. Key processes involve cyclization enzymes and phytoalexin biosynthesis across various organisms.
Topic Hierarchy
Research Sub-Topics
Terpenoid Biosynthesis Isoprenoid Pathway
This sub-topic dissects the mevalonate (MVA) and methylerythritol phosphate (MEP) pathways producing isopentenyl diphosphate precursors in plants. Researchers characterize pathway regulation, enzyme kinetics, and genetic engineering for flux optimization.
Sesquiterpene Synthase Enzymes
This sub-topic studies terpene synthases catalyzing sesquiterpene cyclization from farnesyl diphosphate in plants. Researchers use structural biology, mutagenesis, and expression systems to elucidate reaction mechanisms and product diversity.
Triterpene Biosynthesis Oxidosqualene Cyclases
This sub-topic covers oxidosqualene cyclases forming triterpenoid skeletons like saponins and steroids in plants. Researchers investigate enzyme evolution, substrate specificity, and pathway engineering for medicinal compounds.
Metabolic Engineering Plant Volatiles
This sub-topic focuses on redirecting terpenoid flux toward volatile organic compounds for fragrances and pollinator attraction. Researchers deploy CRISPR and synthetic pathways in planta to boost emission profiles.
Artemisinin Biosynthetic Pathway Engineering
This sub-topic examines amorphadiene synthase and cytochrome P450s in artemisinin production from amorpha-4,11-diene in Artemisia annua. Researchers optimize pathway yield via transcription factors and microbial heterologous expression.
Why It Matters
Plant biochemistry and biosynthesis enables metabolic engineering to enhance production of valuable terpenoids such as artemisinin, used in antimalarial drugs. Dixon and Paiva (1995) detailed stress-induced phenylpropanoid metabolism, which produces compounds like chlorogenic acid and furanoocoumarins that contribute to plant defense and have antioxidant applications in agriculture. Winkel (2001) outlined flavonoid biosynthesis, supporting biotechnology for pigments with roles in plant coloration, UV protection, and human health products from crops like berries and grapes, as explored in genome studies like Jaillon et al. (2007) on grapevine hexaploidization.
Reading Guide
Where to Start
"Flavonoid Biosynthesis. A Colorful Model for Genetics, Biochemistry, Cell Biology, and Biotechnology" by Winkel (2001), as it provides an accessible overview of biosynthetic principles applicable to terpenoids and phenylpropanoids.
Key Papers Explained
"Regulation of the mevalonate pathway" by Goldstein and Brown (1990) establishes isoprenoid precursor control, which Dixon and Paiva (1995) in "Stress-Induced Phenylpropanoid Metabolism" extends to stress-responsive branches; Winkel (2001) in "Flavonoid Biosynthesis. A Colorful Model for Genetics, Biochemistry, Cell Biology, and Biotechnology" integrates these with genetic models, while Kähkönen et al. (1999) in "Antioxidant Activity of Plant Extracts Containing Phenolic Compounds" quantifies downstream phenolic outputs.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Research continues on terpenoid engineering with no recent preprints available; foundational papers like Minnikin et al. (1984) support extraction for pathway analysis, pointing to ongoing needs in MEP optimization and sesquiterpene synthases.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Extended-Connectivity Fingerprints | 2010 | Journal of Chemical In... | 7.1K | ✕ |
| 2 | An integrated procedure for the extraction of bacterial isopre... | 1984 | Journal of Microbiolog... | 5.4K | ✕ |
| 3 | Regulation of the mevalonate pathway | 1990 | Nature | 5.4K | ✕ |
| 4 | Direct activation of calcium-activated, phospholipid-dependent... | 1982 | Journal of Biological ... | 4.8K | ✓ |
| 5 | ChEMBL: a large-scale bioactivity database for drug discovery | 2011 | Nucleic Acids Research | 4.2K | ✓ |
| 6 | wannier90: A tool for obtaining maximally-localised Wannier fu... | 2007 | Computer Physics Commu... | 4.0K | ✓ |
| 7 | Antioxidant Activity of Plant Extracts Containing Phenolic Com... | 1999 | Journal of Agricultura... | 3.8K | ✕ |
| 8 | The grapevine genome sequence suggests ancestral hexaploidizat... | 2007 | Nature | 3.8K | ✓ |
| 9 | Stress-Induced Phenylpropanoid Metabolism. | 1995 | The Plant Cell | 3.8K | ✓ |
| 10 | Flavonoid Biosynthesis. A Colorful Model for Genetics, Biochem... | 2001 | PLANT PHYSIOLOGY | 3.6K | ✓ |
Frequently Asked Questions
What is the mevalonate pathway in plant biochemistry?
The mevalonate pathway produces isoprenoid precursors in plants and other organisms. Goldstein and Brown (1990) described its regulation, which controls terpenoid biosynthesis. This pathway supplies building blocks for sesquiterpenes and triterpenes.
How does stress affect phenylpropanoid metabolism in plants?
Stress triggers phenylpropanoid metabolism to produce defense compounds like chlorogenic acid. Dixon and Paiva (1995) showed this response involves specific biosynthetic enzymes. These metabolites enhance plant resistance to pathogens.
What role do flavonoids play in plant biosynthesis?
Flavonoids serve as pigments and protective agents synthesized via dedicated pathways. Winkel (2001) explained their genetics, biochemistry, and biotechnology applications. They contribute to plant color and stress tolerance.
What methods extract isoprenoid quinones from plants?
An integrated procedure extracts bacterial isoprenoid quinones and polar lipids adaptable to plant studies. Minnikin et al. (1984) developed this method for microbiological analysis. It isolates key terpenoid components efficiently.
How are plant antioxidants linked to phenolics?
Plant extracts with phenolic compounds exhibit antioxidant activity against methyl linoleate oxidation. Kähkönen et al. (1999) tested 92 extracts from berries, fruits, and herbs. Total phenolics content correlates with antioxidative capacity.
What is the current state of terpenoid biosynthesis research?
Terpenoid research totals 63,847 papers, targeting isoprenoid pathways and metabolic engineering. Studies optimize MEP pathways and cyclization enzymes for artemisinin production. No recent preprints or news indicate steady foundational progress.
Open Research Questions
- ? How can MEP pathway optimization be improved for higher terpenoid yields in plants?
- ? What regulatory mechanisms control stress-induced phenylpropanoid flux under varying environmental conditions?
- ? Which cyclization enzymes determine sesquiterpene diversity in different plant species?
- ? How does genome hexaploidization influence isoprenoid biosynthetic gene clusters?
- ? What engineering strategies maximize artemisinin production via triterpene pathways?
Recent Trends
The field maintains 63,847 works with no specified 5-year growth rate; no recent preprints or news coverage in the last 12 months indicates stable focus on established pathways like mevalonate regulation from Goldstein and Brown and flavonoid models from Winkel (2001).
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