Mechanisms by which citric acid increases phosphate availability

• Published in: Plant and soil Vol. 423; no. 1/2; pp. 193 - 204
• Main Authors: Barrow, N. J., Debnath, Abhijit, Sen, Arup
• Format: Journal Article
• Language: English
• Published: Cham Springer 01.02.2018; Springer International Publishing; Springer Nature B.V
• Subjects: Acidity; Acids; Arsenates; Biomedical and Life Sciences; Calcium; Calcium chloride; Carboxylic acids; Chemical properties; Chloroform; citrates; Citric acid; Decomposition; Desorption; Ecology; Ions; iron; Life Sciences; mixing; pH effects; Phosphate; Phosphates; Plant Physiology; Plant Sciences; Preservatives; Regular Article; Rhizosphere; roots; soil; Soil chemistry; Soil investigations; Soil research; Soil Science & Conservation; Citrate decomposition; Citrate ions; Ion competition; Arsenate; Cluster roots

Aims Cluster roots release carboxylic acids, especially citric acid, into the rhizosphere. We investigated how the citrate ion and the acidity interact to release phosphate. Methods We prepared solutions with differing citrate concentrations and differing pH and mixed these solutions with a soil. We...