Summary
Acid phosphatases are localized on the internal strands of sieve-tube members in the secondary phloem of Tilia americana. Companion cells and certain strand parenchyma cells associated with sieve-tube members show a high activity of acid phosphatases.
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This research has been supported by NSF Grant GB-615.
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Lester, H.H., Evert, R.F. Acid-phosphatase activity in sieve-tube members of Tilia americana . Planta 65, 180–185 (1965). https://doi.org/10.1007/BF00384997
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DOI: https://doi.org/10.1007/BF00384997