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Programmed Cell Death in Higher Plants pp 155–171Cite as

Plant proteolytic enzymes: possible roles during programmed cell death

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Abstract

Protelytic enzymes are known to be associated with developmentally programmed cell death during organ senescence and tracheary element differentiation. Recent evidence also links proteinases with some types of pathogenand stress-induced cell suicide. The precise roles of proteinases in these and other plant programmed cell death processes are not understood, however. To provide a framework for consideration of the importance of proteinases during plant cell suicide, characteristics of the best-known proteinases from plants including subtilisin-type and papain-type enzymes, phytepsins, metalloproteinases and the 26S proteasome are summarized. Examples of serine, cysteine, aspartic, metallo- and theronine proteinases linked to animal programmed cell death are cited and the potential for plant proteinases to act as mediators of signal transduction and as effectors of programmed cell death is discussed.

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  1. Department of Horticulture, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA

    Eric P. Beers, Bonnie J. Woffenden & Chengsong Zhao

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  1. Biotech Center, Rutgers University, New Brunswick, NJ, USA

    Eric Lam

  2. Department of Biological Sciences, University of Tokyo, Tokyo, Japan

    Hiroo Fukuda

  3. Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL, USA

    Jean Greenberg

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Beers, E.P., Woffenden, B.J., Zhao, C. (2000). Plant proteolytic enzymes: possible roles during programmed cell death. In: Lam, E., Fukuda, H., Greenberg, J. (eds) Programmed Cell Death in Higher Plants. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0934-8_12

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