Authors from diverse backgrounds such as molecular and cellular biology, electrophysiology, as well as ecology treat the most important aspects of plant communication, including the plant immune system, abilities of plants to recognize self, signal transduction, receptors, plant neurotransmitters and plant neurophysiology.

The Green Plant as an Intelligent Organism.- Neurobiological View of Plants and Their Body Plan.- Charles Darwin and the Plant Root Apex: Closing a Gap in Living Systems Theory as Applied to Plants.- How Can Plants Choose the Most Promising Organs?.- The Role of Root Apices in Shoot Growth Regulation: Support for Neurobiology at the Whole Plant Level?.- Signals and Targets Triggered by Self-Incompatibility in Plants: Recognition of “Self” Can Be Deadly.- Signal Perception and Transduction in Plant Innate Immunity.- Nitric Oxide Involvement in Incompatible Plant-Pathogen Interactions.- From Cell Division to Organ Shape: Nitric Oxide Is Involved in Auxin-Mediated Root Development.- Neurotransmitters, Neuroregulators and Neurotoxins in Plants.- Amino Acid Transport in Plants and Transport of Neurotransmitters in Animals: a Common Mechanism?.- GABA and GHB Neurotransmitters in Plants and Animals.- The Arabidopsis thaliana Glutamate-like Receptor Family (AtGLR).- Similarities Between Endocannabinoid Signaling in Animal Systems and N-Acylethanolamine Metabolism in Plants.- Regulation of Plant Growth and Development by Extracellular Nucleotides.- Physiological Roles of Nonselective Cation Channels in the Plasma Membrane of Higher Plants.- Touch-Responsive Behaviors and Gene Expression in Plants.- Oscillations in Plants.- Electrical Signals in Long-Distance Communication in Plants.- Slow Wave Potentials — a Propagating Electrical Signal Unique to Higher Plants.- Electrical Signals, the Cytoskeleton, and Gene Expression: a Hypothesis on the Coherence of the Cellular Responses to Environmental Insult.- Characteristics and Functions of Phloem-Transmitted Electrical Signals in Higher Plants.- Long-Distance Signal Transmission in Trees.- Electrophysiology and Phototropism.-Hydro-Electrochemical Integration of the Higher Plant — Basis for Electrogenic Flower Induction.- Signals and Signalling Pathways in Plant Wound Responses.- Root Exudation and Rhizosphere Biology: Multiple Functions of a Plant Secondary Metabolite.- Communication Between Undamaged Plants by Volatiles: the Role of Allelobiosis.

From the reviews: "As we enter the new millennium, plant biology is witnessing dramatic advancement in studies related to complex behaviour of higher plants which are now beginning to reveal intelligent behaviour. … The various, interesting aspects … were the subject of the 28 papers presented at the first Symposium on Plant Neurobiology held 17-20 May 2005 in Florence … . The papers include schemes, illustrations, and tables and, finally, an ample list of references to aid further in-depth study of the treated topics." (Advances in Horticultural Science, Vol. 20 (3), 2006) "This book offers an interesting perspective and a unique way to integrate knowledge in plant signal transduction and sensory biology. I recommend it for advanced graduate students and faculty, and find it worthy of purchase by university libraries." (John Z. Kiss, The Quarterly Review of Biology, Vol. 83 (2), June, 2008)