Organic acids in the rhizosphere of Zea mays and Phaseolus aureus plants

Soils from rhizosphere and non-rhizosphere of maize and mung crops and an uncultivated field were analysed for organic carbon, total nitrogen, cation exchange capacity and pH. The rhizosphere soils showed higher carbon and nitrogen content than non-rhizosphere soils. Phenolic acids viz, vanillic, p-...

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Bibliographic Details
Published in:Plant and soil 1973-10, Vol.39 (2), p.441-444
Main Authors: Pareek, R.P, Gaur, A.C
Format: Article
Language:English
Subjects:
Acid soils
Agricultural soils
Corn
Fatty acids
mung beans
Organic soils
Rhizosphere
SHORT COMMUNICATION
Soil air
Soil biochemistry
Soil organic carbon
Soil samples
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Summary:Soils from rhizosphere and non-rhizosphere of maize and mung crops and an uncultivated field were analysed for organic carbon, total nitrogen, cation exchange capacity and pH. The rhizosphere soils showed higher carbon and nitrogen content than non-rhizosphere soils. Phenolic acids viz, vanillic, p-hydroxybenzoic, p-coumaric, salicylic and syringic and pyrocatechol were detected in different cultivated and uncultivated soils. Pyrocatechol was absent from rhizosphere soils of both crops while p-coumaric and salicylic acids were not detected in rhizosphere of mung crop and nonrhizosphere of maize crop respectively. Syringic acid was present only in case of maize. Gluconic, tartaric, and citric acids were also detected in different soils.
ISSN:0032-079X
1573-5036
DOI:10.1007/BF00014812