Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

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

Julianne A. Kellogg, John P. Reganold, Kevin Murphy, Lynne Carpenter‐Boggs

Microbial Ecology · 2021

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Summary

This peer-reviewed study employed a controlled bioassay approach to assess the mycorrhizal status of quinoa (Chenopodium quinoa Willd.), a nutrient-dense pseudocereal of increasing agronomic interest. The authors' classification of quinoa as inconsistently mycorrhizal—meaning it forms variable associations with arbuscular mycorrhizal fungi depending on conditions—has implications for understanding quinoa's soil health relationships and nutrient uptake pathways. The finding suggests that quinoa's mycorrhizal dependency may not be constant across diverse growing environments, which could influence management practices and crop performance in different agricultural systems.

UK applicability

Whilst quinoa is not a traditional UK crop, understanding its mycorrhizal status is relevant to UK growers adopting this species under climate change or for local food system diversification. The findings may inform soil management and inoculant strategies if quinoa cultivation expands in the UK.

Key measures

Mycorrhizal colonisation rates, plant growth response to inoculation, fungal colonisation frequency and intensity

Outcomes reported

The study used a plant–fungus bioassay to evaluate mycorrhizal colonisation patterns in quinoa, classifying the crop as inconsistently mycorrhizal. This characterisation suggests variability in quinoa's fungal associations depending on environmental or cultivation conditions.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial / Laboratory bioassay
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Laboratory / in vitro
DOI
10.1007/s00248-021-01710-1
Catalogue ID
BFmovi20nx-kge0f9

Topic tags

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