Plant Hormones pp 377-398 | Cite as

Ethylene Signal Transduction in Fruits and Flowers

  • Harry J. Klee
  • David G. Clark


Persons reading this book will appreciate that phytohormones have vital roles in assimilating many aspects of plant growth and development. While it is well established that hormonal action is regulated at the level of synthesis, many developmental processes are also regulated at the level of hormone perception (8). Sensitivity to hormones is regulated both spatially and temporally during growth and development. For example, adjacent cell layers respond differentially to hormones during organ abscission. Likewise, sensitivity of an organ can change over time as occurs during fruit ripening. How such alterations in hormone responses are regulated is not well understood. However, as the individual components of signaling pathways are identified, a basic understanding of hormone responsiveness is emerging. In the context of this article, the term “sensitivity” refers to the response of a tissue or organ to the hormone. A change in sensitivity indicates that the concentration of hormone that is able to initiate a set response is altered.


Ethylene Response Histidine Kinase Ethylene Synthesis Ethylene Receptor Ethylene Sensitivity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Plant Molecular and Cellular Biology ProgramUniversity of FloridaGainesvilleUSA

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