Abstract
Currently, root colonization measurements of arbuscular mycorrhizal fungi (AMF) require staining and microscopy, and species-level identification of the fungi by such observations is not possible. Here, we present novel multiplex real-time PCR assays targeting the glomalin genes of 11 different species of AMF commonly found in temperate agricultural soils, which independently detect and measure the abundance of these fungi using DNA extracts from soil and or root tissue. The availability of these tools will not only increase throughput in determining levels of root colonization but can provide species-specific levels of root colonization from a single sample. This will help to establish which AMF species, or combinations of different species, provide the most benefits to crops, and will aid in the development of AMF for use as biofertilizers.
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Acknowledgements
We are grateful for expert technical assistance in processing root samples by Lindsay McKeever, and for the access to field sites at the Rodale Institute to conduct field experiments.
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All sequence data have been deposited in GenBank and biological materials not available elsewhere may be requested from the corresponding author.
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Heller, W.P., Carrara, J.E. Multiplex qPCR assays to distinguish individual species of arbuscular mycorrhizal fungi from roots and soil. Mycorrhiza 32, 155–164 (2022). https://doi.org/10.1007/s00572-022-01069-2
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DOI: https://doi.org/10.1007/s00572-022-01069-2