Localization of Calcium in Amyloplasts of Root-Cap Cells Using Ion Microscopy

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Science  11 Jun 1982:
Vol. 216, Issue 4551, pp. 1221-1223
DOI: 10.1126/science.216.4551.1221


An ion microscope has been used to demonstrate that the calcium ion is present in the amyloplasts of root-cap cells of corn, pea, and lettuce. The localization of calcium in the gravity-sensing organelle suggests a possible role of calcium in the gravity-sensing mechanism of plant roots.

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