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Studies in the Regeneration of Horseradish: I. A Re-examination of the Morphology and Anatomy of Regeneration

J. DORE
Annals of Botany
New Series, Vol. 19, No. 73 (January 1955), pp. 127-137
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/42907270
Page Count: 11
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Studies in the Regeneration of Horseradish: I. A Re-examination of the Morphology and Anatomy of Regeneration
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Abstract

1. Horseradish roots reach a stage of 'ripeness to regenerate' at the age of 1-2 months, when secondary thickening has begun, a phellogen has formed, and the primary cortex has been shed; provided that they are then detached from the parent plant. 2. New primordia arise (as is already known) only in association with the scars of lateral roots ; but they are produced, not as previously believed from a callus, but individually as organized meristems whose cells are derived only from the phellogen of the main root. 3. The primordia appear to be undetermined ('indifferent') in nature; their subsequent differentiation into buds or roots is described.

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