Journal
APPLIED SOIL ECOLOGY
Volume 40, Issue 1, Pages 174-181Publisher
ELSEVIER
DOI: 10.1016/j.apsoil.2008.04.003
Keywords
Glomus macrocarpum; Glomus fasciculatum; Artemisia annua; AMF; essential oil; artemisinin; shoot-P
Categories
Funding
- Department of Science and Technology, New Delhi, India
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A field experiment was conducted to study and compare the effectiveness of two arbuscular mycorrhizal fungi (AMF), Glomus macrocarpum (GM) and Glomus fasciculatum (GF) on three accessions of Artemisia annua. The AM inoculation significantly increased the production of herbage, dry weight of shoot, nutrient status (P, Zn and Fe) of shoot, concentration of essential oil and artemisinin in leaves as compared to non-inoculated plants. The extent of growth, nutrient concentration and production of secondary plant metabolites varied with the fungus-plant accession combination. The mycorrhizal dependency of the three accessions was related to the shoot: root ratio. Comparing the two fungal inoculants in regard to increase in essential oil concentration in shoot, the effectiveness of GF was more than that of GM. While in two accessions, GM was more effective in enhancing artemisinin concentration than GF. Increase in concentration of essential oil was found to be positively correlated to P-status of the plant. Conversely, no correlation was found between shoot-P and artemisinin concentration. (C) 2008 Elsevier B.V. All rights reserved.
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