Calcium complexes in the xylem sap of apple shoots

✍ Scribed by E. G. Bradfield

• Publisher: Springer
• Year: 1976
• Tongue: English
• Weight: 205 KB
• Volume: 44
• Category: Article
• ISSN: 0032-079X
• DOI: 10.1007/bf00015906

✦ Synopsis

Concentrations of total calcium, ionic calcium, citric and malic acids have been measured in xylem sap extracted from apple shoots. Ionic calcium, as measured by an ion selective electrode, was about 50 per cent of the total calcium. The remainder of the soluble calcium was present as complexes with citric and malic acids. The implication of these findings on the mobility of calcium in the xylem is discussed.