Claim · model-written summary
Oxalic acid was detected in media without plants.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Organic acid production by plants and microorganisms was quantified in sand media amended with biosolids in the presence and absence of corn (Zea mays L.) in a sand‐culture hydroponic medium”
e4“Only lactic, acetic, butyric, and oxalic acids were detected in media without plants”
Title
Bon‐Jun Koo; Andrew C. Chang; David E. Crowley; et al. Communications in Soil Science and Plant Analysis 2006. doi:10.1080/00103620600564158
Other claims from this paper (15)
- Intervention effect Total organic acids were greatest where both corn plants and biosolids were present.
- Intervention effect Biosolids enhanced organic acid production in the rhizosphere.
- Intervention effect Biosolids influenced the composition of organic acid mixtures in the rhizosphere.
- Observation Lactic, acetic and butyric acids were detected in media without plants.
- Observation Planted media yielded additional tartaric, maleic and succinic acids.
- Observation Planted media yielded additional valeric, glutaric and pyruvic acids.
- Observation Planted media yielded additional propionic acid.
- Observation Lactic, acetic and butyric acids were predominant in planted media, accounting for 0.65 to 0.75 of the COO− mole fraction.
- Observation Oxalic, maleic and tartaric acids were the second most abundant, at 0.05 to 0.1 of the mole fraction.
- Observation Succinic, valeric and glutaric acids each comprised at most 0.05 of the mole fraction.
- Observation Propionic and pyruvic acids each comprised at most 0.05 of the mole fraction.
- Intervention effect Plant growth stage had no effect on the relative proportions of organic acids.
- Intervention effect Plant growth stage influenced the total quantities of organic acids recovered.
- Intervention effect Biosolids sources had no significant effect on the quantity or composition of organic acids.
- Mechanism The predominance of organic acids suggests that they are microbial fermentation products formed through microbial growth and activity.