Cross-Talk Between Phytohormone Signaling Pathways Under Both Optimal and Stressful Environmental Conditions

  • Marcia A. Harrison


The perception of abiotic stress triggers the activation of signal transduction cascades that interact with the baseline pathways transduced by phytohormones. The convergence points among hormone signal transduction cascades are considered cross-talk, and together they form a signaling network. Through this mechanism, hormones interact by activating either a common second messenger or a phosphorylation cascade. This chapter reviews kinase cascades as cross-talk points in hormonal networks during abiotic stress conditions. These transduction cascades lead to the regulation of gene expression that directly affects the biosynthesis or action of other hormones. Examples of stress-related hormone transduction networks are provided for drought and wounding conditions. The expression of specific genes associated with drought and wounding stress will be compared with expression changes that occur during other abiotic stress conditions. This evaluation will be used to construct a model of abiotic stress signaling that incorporates the signaling components that are most common across all abiotic stress conditions and are, therefore, relevant to developing stress tolerance in crop plants.


Nitric Oxide Drought Stress Guard Cell Ethylene Production Jasmonic Acid 
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.



Abscisic acid


ABA-responsive element-binding factor


ABA insensitive


ABA-responsive element


1-Aminocyclopropane-1-carboxylate oxidase


1-Aminocyclopropane-1-carboxylic acid synthase




Arabidopsis Ser/Thr phosphatase of type 2C


Arabidopsis histidine kinase 1


Calcium-dependent protein kinase


Cytokinin oxidase/dehydrogenase


Calcium-dependent protein kinase gene/protein abbreviation


Ethylene insensitive


Ethylene-responsive element-binding protein


Ethylene-response factor


Guard cell outward-rectifying K+


Glutathione-S-transferase 1




Histidine kinase


Inositol trisphosphate


Jasmonic acid


K+ channel in Arabidopsis thaliana


Mitogen-activated protein kinase


Methyl JA




MAPK kinase


MAPK gene/protein abbreviation


Nitric oxide




Protein phosphatase 2C


Pyrabactin (4-bromo-N-[pyridin-2-yl methyl] naphthalene-1-sulfonamide) resistance


Regulatory component of ABA receptor


Reactive oxygen species


Rapid stress response element


Rapid wound response


Senescence-associated protein 1


Slow anion channel-associated 1


Sucrose nonfermenting 1-related protein kinase


Touch-induced 3



I thank Susan Weinstein for her careful reading and helpful advice concerning this manuscript. I also thank Jamie Lau for assistance with the graphics and Richard Pitaniello for editing assistance.


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© Springer Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of Biological SciencesMarshall UniversityHuntingtonUSA

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