Long-Distance Signalling in Systemic Acquired Resistance.- Salicyl Acid-Induced Local and Long-Distance Signalling Models in Plants.- Long-Distance Signalling via Mobile RNAs.- Systemic Epigenetic Signalling in Plants.- Long-Distance Signals Produced by Water-Stressed Roots.- Oxygen Deficiency-Induced Root-to-Shoot Communication.- Systemic Signaling in the Maintenance of Phosphate Homeostasis.- Long-Distance Signalling of Iron Deficiency in Plants.- Strigolactones and the Coordinated Development of Shoot and Root.- Auxin as Long Distance Signal Controlling Root Architecture in Response to Nitrogen.- Systemic Signalling in Legume Nodulation: Legume Formation and its Regulation.- Systemic Signalling in Light Acclimation of Leaves.- Systemic Photo-Oxidative Stress Signalling.- Macromolecules Trafficking in the Phloem and Inter-Organ Communication.- Electrical Long Distance Signalling in Plants.- Intercellular Communication in Plants: Evidence for an EMF-Generated Signal that Evokes Local and Systemic Transcriptional Responses in Tomato.- Systemic Wound Signalling in Plants.- Calcium Along the Phloem Pathway as a Universal Trigger and Regulator of Systemic Alarms and Signals.- The Role of Volatiles in Plant-Plant Interactions.