Ultrastructural aspects of graft incompatibility between pear and quince In vitro

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Callus cells of pear (Pyrus communis cv. 'Bartlett') underwent lethal cellular senescence in response to grafting with callus cells of quince (Cydonia oblonga cv. 'Van Deman'). Similar responses occurred when the cells were in direct contact and when they were separated by a porous membrane filter. These results indicate that direct cellular contact is not necessary to elicit graft incompatibility between pear and quince.

Original languageEnglish (US)
Pages (from-to)447-452
Number of pages6
JournalAnnals of Botany
Issue number3
StatePublished - Mar 1984
Externally publishedYes

Bibliographical note

Funding Information:
Support for this research was provided by Grant No. PCM-8207933 from the National Science Foundation. The author thanks Steve Ransom for his excellent technical assistance.


  • Cydonia oblonga
  • Grafting
  • Incompatibility
  • Pear
  • Pyrus communis
  • Quince


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