TY - JOUR
AU1 - Lauer, Nathan
AB - The responses of glycophytic plants to NaCl stress have been well documented and include rapid decreases in root water flux, transpiration, photosynthesis, and growth but increased non-photochemical quenching (NPQ). Prolonged periods of stress decreases chlorophyll concentration but increased cellular compatible solute concentrations, suberin deposition at the roots, and senescence of older leaves. Once acclimated, plants exhibit a more conservative growth form characterized by increased lateral root formation. This process appears to be regulated by systemic electrical signals sent through the phloem followed by cell signaling cascades leading to a more conservative growth form. The secondary cell signaling responses to NaCl stress include elevated cytosolic Ca+2, the enzymatic production of reactive oxygen species (ROS) and nitric oxide (NO), the induction of autophagy, the proliferation of peroxisomes and changes to organelle activity. The response on the cellular level leads to fundamental changes in the cell’s behavior, which ultimately leads to physiological changes in the whole plant. The purpose of this review is to link physiological responses at the whole plant level to responses at the cellular level to provide a conceptual framework for future research. The cell signaling processes in the root tips, root cortex, guard cells, and necrotic leaves are well studied whereas signaling processes governing mesophyll cells, xylem growth, and root epidermis are mostly unexplored. By fully understanding the cellular responses in different cell types, it is possible to better understand the coordination of plant responses between various tissues and unravel complex NaCl tolerance mechanisms.
TI - Linking whole-plant responses to cell physiology in glycophytes exposed to NaCl stress
JF - Acta Physiologiae Plantarum
DO - 10.1007/s11738-023-03515-w
DA - 2023-02-01
UR - https://www.deepdyve.com/lp/springer-journals/linking-whole-plant-responses-to-cell-physiology-in-glycophytes-PMfJJW7g6W
VL - 45
IS - 2
DP - DeepDyve
ER -