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Localization and Visualization of Specific Gene Products in Fungal Plant Pathogens

Published online by Cambridge University Press:  02 July 2020

T. M. Bourett
Affiliation:
Dupont Agricultural Products, Wilmington, UE
K. J. Czymmek
Affiliation:
University of Delaware, Dept of Biological Sciences, Newark, DE
T. M. Dezwaan
Affiliation:
Dupont Agricultural Products, Wilmington, UE
J. A. Sweigard
Affiliation:
Dupont Agricultural Products, Wilmington, UE
R. J. Howard
Affiliation:
Dupont Agricultural Products, Wilmington, UE
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Extract

Specific gene products of both pathogens and hosts have been implicated as decisive elements during plant pathogenesis. While expression of some of these genes is constitutive, that of others is likely ephemeral and activated only during a particular stage of the interaction. Because the relative timing of expression may be critical, transcription and translation have often been addressed by extracting mRNA and proteins from infected plant tissue. This approach, however, cannot readily detect proteins of low abundance in bulk samples nor offer much useful information on cell-cell interaction. Only a cytological analysis that employs microscopy can resolve the temporal and spatial details of gene expression. Typically, such protein localization studies have required specific antibodies, but these large probe molecules do not diffuse into living or conventionally fixed cells of either fungal pathogens or plant hosts. For TEM analysis, these permeability-imposed limitations have been reduced by thin sectioning to render accessible antibody binding sites.

Type
Light and Electron Microscopic Techniques for the Study of Plant Pathogenic Fungi and Their Interactions with Host Plants
Copyright
Copyright © Microscopy Society of America

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References

References:

1.Czymmek, K. J. et al., J. Microsc. 181 (1996) 153.CrossRefGoogle Scholar
2.Bourett, T. M. et al., Fungal Genet. & Biol. 24 (1998) 3.CrossRefGoogle Scholar