A Plant-Fungus Bioassay Supports the Classification of Quinoa (Chenopodium quinoa Willd.) as Inconsistently Mycorrhizal

Summary

This controlled laboratory bioassay examined the mycorrhizal associations of quinoa (Chenopodium quinoa) to better understand its fungal partnerships and soil microbial ecology. The authors provide evidence that quinoa should be classified as inconsistently mycorrhizal—meaning it does not consistently benefit from or depend upon arbuscular mycorrhizal fungal partnerships under the conditions tested. The finding has implications for soil management strategies and cultivation practices for this increasingly agronomically important crop.

UK applicability

Whilst quinoa is not widely grown in the UK, this fundamental finding on mycorrhizal dependency may inform soil management decisions for any future cultivation attempts. The classification as inconsistently mycorrhizal suggests that quinoa growers in temperate regions should not rely heavily on mycorrhizal enhancement strategies, though field validation under UK soil and climate conditions would be warranted.

Key measures

Mycorrhizal colonisation rates and patterns in quinoa roots under standardised bioassay conditions

Outcomes reported

The study used a controlled bioassay to examine arbuscular mycorrhizal fungal colonisation patterns in quinoa roots. The findings support classification of quinoa as inconsistently mycorrhizal, indicating variable or unreliable fungal associations.

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