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Family Business: Multiple Members of Major Phytohormone Classes Orchestrate Plant Stress Responses

Authors

  • Dr. Matthias Erb,

    1. Institute of Biology, University of Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel (Switzerland), Fax: (+41) 32-718-3001
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  • Dr. Gaetan Glauser

    1. Institute of Biology, University of Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel (Switzerland), Fax: (+41) 32-718-3001
    2. Phytochemistry and Bioactive Natural Products, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, 1211 Geneva 4 (Switzerland)
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Abstract

Low-molecular-weight compounds such as jasmonic, abscisic and salicylic acids are commonly thought to be regulators of plant stress responses. However, it is becoming clear that these molecules, often referred to as phytohormones, are only a part of bigger groups of compounds with biological activity. We propose that the concept of “hormone families” may help to better understand plant physiological responses by taking into account not only the alleged main regulators, but also their precursors, conjugates and catabolites. Novel approaches to profile potentially active compounds in plants are discussed.

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