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.