Abstract
Light is a vital regulator that controls physiological and cellular responses to regulate plant growth, development, yield, and quality. Light is the driving force for electron and ion transport in the thylakoid membrane and other membranes of plant cells. In different plant species and cell types, light activates photoreceptors, thereby modulating plasma membrane transport. Plants maximize their growth and photosynthesis by facilitating the coordinated regulation of ion channels, pumps, and co-transporters across membranes to fine-tune nutrient uptake. The signal-transducing functions associated with membrane transporters, pumps, and channels impart a complex array of mechanisms to regulate plant responses to light. The identification of light responsive membrane transport components and understanding of their potential interaction with photoreceptors will elucidate how light-activated signaling pathways optimize plant growth, production, and nutrition to the prevailing environmental changes. This review summarizes the mechanisms underlying the physiological and molecular regulations of light-induced membrane transport and their potential interaction with photoreceptors in a plant evolutionary and nutrition context. It will shed new light on plant ecological conservation as well as agricultural production and crop quality, bringing potential nutrition and health benefits to humans and animals.
Highlights
Light is one of the most important environmental cues for plant growth and development and other physiological responses via the changes of intensity and spectral quality of light (Steinger et al, 2003; Fan et al, 2013)
It was reported that blue light–stimulated stomatal opening in the leaf is correlated with activation of an electrogenic pump in the guard cell which results in hyperpolarization of 45 mV and outward H+ currents of 5.5 pA, creating an electrochemical gradient for passive ion fluxes (Assmann et al, 1985)
Land plants encompass an extra family of UV-A/blue light photoreceptors that consist of ZTL, flavin-binding, kelch repeat, F-box (FKF1), and lov kelch protein2 (LKP2) proteins that are collectively named as Zeitlupes (Ito et al, 2012; Suetsugu and Wada, 2012)
Summary
Light is one of the most important environmental cues for plant growth and development and other physiological responses via the changes of intensity and spectral quality of light (Steinger et al, 2003; Fan et al, 2013). Photoreceptors and Membrane Transporters Interaction in Plants plant ion and solute homeostasis and signaling transduction (Wang et al, 2018). Specialized plant membrane transporters are a promising target to increase crop yields, enhance produce quality, and improve resistance to abiotic and biotic stresses for the sustainable production of nutritious foods (Schroeder et al, 2013). We highlight how photoreceptors may have profound regulation on membrane transport in plant cells. We emphasize how coordinated light responses drive ion exchange, membrane transporters, and photoreceptors to promote leaf and fruit developments for improving crop nutrition
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