The role of direct cellular contact in the formation of compatible autografts inSedum telephoides

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In order to determine the importance of direct cellular contact for the formation of a compatible graft, I have monitored the development of compatible autografts in Sedum telephoides in which porous membrane filters were inserted between the grafting surfaces. The tensile strengths of these grafts levelled off at approximately 10 g breaking weight per square millimetre graft area baween 2 and 5 d after grafting. Callus proliferation occurd at both grafting surface by 5 d after grafting. By 21 d after grafting, vascular redifferentiation across the graft interface was complete. These results indicate that direct cellular contact is not necessary for the (I) cohesion of the stock and scion, (2) callus proliferation or (3) vascular redifferentiation that occur during the formation of a compatible graft.

Original languageEnglish (US)
Pages (from-to)127-133
Number of pages7
JournalAnnals of Botany
Issue number1
StatePublished - Jul 1984

Bibliographical note

Funding Information:
This research was supported by Grant No. PCM-8207933 from the National Science Foundation. I thank Cynthia Stickney and Barbara Wimpee for their excellent technical assistance.

Copyright 2020 Elsevier B.V., All rights reserved.


  • Compatibility
  • Crassulaceae
  • Grafting
  • Sedum telephoides
  • Vascular redifferentiation

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