Long-Distance Systemic Signaling and Communication in Plants by František Baluška

This review summarises the current knowledge of the above signalling mechanisms, and reveals their hierarchy, and highlights the importance of integration of these signalling components, to enable optimal plant functioning in a dynamic environment. It remains unclear whether some of these signalling systems operate in a priming mode(s), whereas others deliver more specific information about the nature of the signal, or whether they carry the same 'weight'. Further, different signalling systems operate at very different timescales. The communication modes are highly diverse and include a broad range of physical (electric and hydraulic signals, propagating Ca 2+ and ROS waves), chemical (assimilates, hormones, peptides and nutrients), and molecular (proteins and RNA) signals. Long-Distance Systemic Signaling and Communication in Plants (2013). In return, plant roots receive and decode reciprocal information coming from the shoot. Baluka Frantiek, Volkmann Dieter, Hlavacka Andrej, Mancuso Stefano, Barlow Peter W. Plant roots act as gatekeepers that sense and encode information about soil physical, chemical and biological factors, converting them into a sophisticated network of signals propagated both within the root itself, and also between the root and shoot, to optimise plant performance for a specific set of conditions. To this end, the endogenous concentrations of five major classes of plant hormones auxin, cytokinin (CK), abscisic acid, salicylic acid (SA) and jasmonic acid and the ethylene precursor 1-aminocyclopropane-1-carboxylic acid were analyzed at the base of stem cuttings and at different stages of adventitious root formation. Plant adaptive potential is critically dependent upon efficient communication and coordination of resource allocation and signalling between above-and below-ground plant parts.

Long-Distance Systemic Signaling and Communication in Plants by František Baluška