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Ascent of calcium in intact and de-rooted bean plants



Ascent of calcium in intact and de-rooted bean plants



Nature 211(5045): 212



Ca was delivered to the whole plant when absorbed by roots of intact plants; it was, however, retained in the basal stem segment when absorbed by cut surfaces of similar but de-rooted plants. Other mineral ions such as chloride, sulfate and K, as well as an acid dye (fuchsin) were distributed throughout the whole plant when absorbed by de-rooted beans. Immediate microscopic examinations of hand-sections made from stems of de-rooted plants after absorption of acid fuchsin showed that the flow of the solutions was restricted to the xylem vessels. These observations seem to indicate that the mobility of Ca ions in the xylem vessels of bean plants is increased by the passage of these ions through the roots.

Accession: 014352076

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PMID: 5965530

DOI: 10.1038/211212a0



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