What benefits of Claroideoglomus claroideum have been cited in the scientific literature?
Peer-reviewed research reports that C. claroideum colonized up to 78% of tomato root systems, with inoculated plants showing 80% greater fruit diameter, 84% higher fresh weight, and 124.5% greater lycopene concentration compared with non-inoculated controls. In black turtle beans (Phaseolus vulgaris), the literature cites roughly 15% higher seed phosphorus concentration, along with increased seed potassium and copper. Wheat studies report increased P content and enhanced root growth in the less P-acquisition-efficient cultivar Tukan.
For phytoremediation applications, research on Oenothera picensis in copper mine tailings reports up to 2-fold biomass increases and reduced Cu availability, effects further amplified by compost addition or co-inoculation with the yeast Meyerozyma guilliermondii. These are literature-reported findings, not approved label claims or regulatory endorsements.
Results are not uniformly positive: the literature associates C. claroideum with growth depression in four of six cucumber varieties tested, and colonization outcomes in apple rootstocks vary significantly by rootstock genotype — important context when evaluating what Claroideoglomus claroideum research actually shows for specific crops.
1AAPFCO-accepted claims
Listing details- Increased plant growth & nutrient acquisition under saline and non-saline conditions.
Accepted wording, shown verbatim · source: AAPFCO Plant Biostimulant list
2Potential claims from the literature
Reported to increase biomass production of Oenothera picensis up to 2-fold compared with non-inoculated plants when grown in Cu mine tailings, with the effect further improved by compost addition at doses of 5% and 10%
Reported to decrease Cu availability in Cu mine tailings, associated with increased mycorrhizal and nutritional parameters and production of photosynthetic pigments in Oenothera picensis, supporting phytoremediation programs
Reported to colonize up to 78% of the tomato root system, with single-species inoculation associated with 80% increase in tomato diameter, 84% higher fresh weight, and 124.5% greater lycopene concentration in fruits compared with non-inoculated controls
Reported to increase seed phosphorus (P) concentration by approximately 15% in black turtle beans (Phaseolus vulgaris) compared with non-mycorrhizal plants
Reported to increase seed potassium (K) and copper (Cu) concentrations, as well as leaf aluminum (Al) concentration, in black turtle beans (Phaseolus vulgaris) compared with non-mycorrhizal plants
Reported to increase phosphorus (P) content in both P-acquisition efficient and less P-acquisition efficient wheat cultivars, with a concomitant increase in root growth and diffusion-based nutrient acquisition in the less efficient cultivar (Tukan)
Reported to increase root growth in the less P-acquisition efficient wheat cultivar (Tukan), with mycorrhizal growth responses ranging from -45 to 54% relative to non-mycorrhizal plants depending on root trait measured
Reported to promote shoot and root biomass increases in Oenothera picensis growing in Cu mine tailings when co-inoculated with yeast (Meyerozyma guilliermondii), with the MG-CC treatment showing a 5-fold increase in root biomass compared with the non-inoculated control; AMF inoculation also promoted production of photosynthetic pigments
Reported to contribute to a 2-fold decrease in total phenols in roots of Oenothera picensis when inoculated individually, and to influence antioxidant enzyme activity (catalase and ascorbate peroxidase) when co-inoculated with yeast in Cu mine tailings
Reported to markedly alter host plant shoot nutrient composition in cucumber mycorrhizal associations, though associated with growth depression in four out of six cucumber varieties tested
Reported to colonize roots of multiple plant species across different arid land environments in Qatar, though identified as among the least widespread AMF species detected in that study
Reported to colonize commercially available Geneva apple rootstock genotypes, with both rootstock genotype and AMF species identity identified as significant sources of variation affecting colonization percentage; nutrient uptake and plant growth outcomes were influenced in a rootstock genotype/AMF species-specific manner
See the full picture on Claroideoglomus claroideum
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