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Observations on albuminous cells in Pinus

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Summary

Albuminous cells were examined in seasonal collections of secondary phloem of Pinus banksiana, P. resinosa and P. strobus. It was determined that the only reliable criterion for the identification of albuminous cells is their conspicuous connections with sieve cells. Discrete bodies, which give positive protein reactions, were encountered in young albuminous cells. These bodies, which have been interpreted as slime bodies, eventually elongate in the cytoplasm and disappear. During periods of high starch content in other parenchymatous elements, albuminous cells may also contain starch.

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Author notes

  1. Frank J. Alfieri

    Present address: Department of Biology, California State College, 90804, Long Beach, California, USA

Authors and Affiliations

  1. Department of Botany, University of Wisconsin, Madison

    Frank J. Alfieri & Ray F. Evert

Authors
  1. Frank J. Alfieri
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  2. Ray F. Evert
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Additional information

This research has been supported by National Science Foundation grant GB-3193.

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Alfieri, F.J., Evert, R.F. Observations on albuminous cells in Pinus . Planta 78, 93–97 (1967). https://doi.org/10.1007/BF00406643

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  • DOI: https://doi.org/10.1007/BF00406643

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