Journal
MYCORRHIZA
Volume 27, Issue 5, Pages 499-511Publisher
SPRINGER
DOI: 10.1007/s00572-017-0768-x
Keywords
AMF; Fungal endophytes; Verbascum lychnitis; Toxicmetals; Photosynthesis efficiency
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Funding
- National Science Center (MAESTRO project) [DEC-2011/02/A/NZ9/00137]
- Jagiellonian University [DS/MND/WBiNoZ/INoS/26/2012, DS/MND/WBiNoZ/INoS/34/2013]
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The impact of fungal endophytes and the modulating role of arbuscular mycorrhizal fungi (AMF) on the vitality of Verbascum lychnitis, grown in the laboratory in a substratum from a post-mining waste dump was investigated. We report that inoculation with a single endophyte negatively affected the survival rate and biomass production of most of the plant-endophyte consortia examined. The introduction of arbuscular mycorrhiza fungi into this setup (dual inoculation) had a beneficial effect on both biomass yield and survivability. V. lychnitis co-inoculated with AMF and Cochliobolus sativus, Diaporthe sp., and Phoma exigua var. exigua yielded the highest biomass, exceeding the growth rate of both non-inoculated and AMF plants. AMF significantly improved the photosynthesis rates of the plant-endophyte consortia, which were negatively affected by inoculation with single endophytes. The abundance of PsbC, a photosystem II core protein previously shown to be upregulated in plants colonized by Epichloe typhina, exhibited a significant increase when the negative effect of the fungal endophyte was attenuated by AMF.
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