Cited by 111Plant biochemistry and biosynthesisMycorrhizal Fungi and Plant InteractionsPlant and fungal interactions

Arbuscular mycorrhiza increase artemisinin accumulation in Artemisia annua by higher expression of key biosynthesis genes via enhanced jasmonic acid levels

Mandal, Shantanu, Upadhyay, Shivangi, Wajid, Saima, Ram, Mauji, Jain, Dharam Chand, Singh, Ved Pal, Abdin, Malik Zainul, Kapoor, Rupam·2015·Mycorrhiza

Abstract

It is becoming increasingly evident that the formation of arbuscular mycorrhiza (AM) enhances secondary metabolite production in shoots. Despite mounting evidence, relatively little is known about the underlying mechanisms. This study suggests that increase in artemisinin concentration in Artemisia annua colonized by Rhizophagus intraradices is due to altered trichome density as well as transcriptional patterns that are mediated via enhanced jasmonic acid (JA) levels. Mycorrhizal (M) plants had higher JA levels in leaf tissue that may be due to induction of an allene oxidase synthase gene (AOS), encoding one of the key enzymes for JA production. Non-mycorrhizal (NM) plants were exogenously supplied with a range of methyl jasmonic acid concentrations. When leaves of NM and M plants with similar levels of endogenous JA were compared, these matched closely in terms of shoot trichome density, artemisinin concentration, and transcript profile of artemisinin biosynthesis genes. Mycorrhization increased artemisinin levels by increasing glandular trichome density and transcriptional activation of artemisinin biosynthesis genes. Transcriptional analysis of some rate-limiting enzymes of mevalonate and methyl erythritol phosphate (MEP) pathways revealed that AM increases isoprenoids by induction of the MEP pathway. A decline in artemisinin concentration in shoots of NM and M plants treated with ibuprofen (an inhibitor of JA biosynthesis) further confirmed the implication of JA in the mechanism of artemisinin production.

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Crossref · 10.1007/s00572-014-0614-3

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Authors
Mandal, S., Upadhyay, S., Wajid, S., Ram, M., Jain, D. C., Singh, V. P., Abdin, M. Z., & Kapoor, R.
Affiliations
  • University of Delhi (IN)
  • Jamia Hamdard (IN)
  • Ipca Laboratories (India) (IN)
Corresponding author
Kapoor, Rupam
Venue
Mycorrhiza
Published
2014-11-05
Volume
25
Issue
5
Pages
345-357
ISSN
  • 0940-6360 (ISSN-L)
  • 1432-1890
OpenAlex
W2009545804
Cited by
111
References
74
Citations by year
2026: 6 · 2025: 4 · 2024: 8 · 2023: 13 · 2022: 26 · 2021: 11 · 2020: 8 · 2019: 4 · 2018: 12 · 2017: 8 · 2016: 5 · 2015: 6
FWCI
2.60
Type
journal article
Language
en
Open access
closed
Locations
  • Mycorrhiza (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycorrhizal Fungi and Plant Interactions
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Plant and fungal interactions
Keywords
arbuscular mycorrhizal symbiosis, artemisinin biosynthesis, Artemisia annua, Glomus intraradices, jasmonic acid, glandular trichomes, trichome density, allene oxide synthase, methyl jasmonic acid, mevalonate pathway, methylerythritol phosphate pathway, terpenoids, secondary metabolite production, gene expression, ibuprofen
MeSH terms
Cyclopentanes, Plant Proteins, Gene Expression Regulation, Plant, Plant Leaves, Plant Roots, Intramolecular Oxidoreductases, Artemisia annua, Artemisinins, Mycorrhizae, Biosynthetic Pathways, Oxylipins

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