Abstract
In the search for biochemical and molecular markers of juvenility in trees proteins have been identified which are preferentially or differentially expressed in either the juvenile or the mature phases of Prunus avium cv. Stella. These fall into two classes: those which are phase-related and those which may be affected by root-shoot distance. N-terminal amino acid sequence data from some of these proteins were used to produce polyclonal antibodies to corresponding synthetic peptides in order to determine if they could be used as markers of phase state in woody plants. Western blot analysis was performed on proteins extracted from three sources; juvenile trees, mature trees and rooted cuttings from mature trees. The results showed that the antibodies recognised differentially-expressed proteins. In particular, one antibody to a juvenile specific protein cross-reacted with a polypeptide of approx. 28 kDa which was present in greater amounts in shoot tips of juvenile P. avium cv. Stella seedlings compared with rooted cuttings of mature plants placed in the same growth environment.
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Hand, P., Besford, R.T., Richardson, C.M. et al. Antibodies to phase related proteins in juvenile and mature Prunus avium . Plant Growth Regul 20, 25–29 (1996). https://doi.org/10.1007/BF00024053
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DOI: https://doi.org/10.1007/BF00024053