Photobiosynthesis of isoprene as an example of leaf excretory function in the light of contemporary thermodynamics

Various aspects in photobiosynthesis of isoprene and its release from leaves into the environment are presently well known. The release of isoprene from the cell can be regarded as dissipation of excess energy (entropy). The systemic release of metabolites into the external medium should be considered as a result of cell excretory activity, one of the most important functions of living systems. Energy dissipation terminates the sustained passage of thermodynamic flows and regulates the overall stability of cell stationary condition. These issues are considered in this review from the standpoint of contemporary thermodynamics. It is concluded that the excretory capacity of living cell is based on thermodynamic dissipation of entropy during irreversible processes that provide for stability and sustainable development of the living organism.