Linking whole-plant responses to cell physiology in glycophytes exposed to NaCl stress

Abstract 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..

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:45

Enthalten in:

Acta physiologiae plantarum - 45(2023), 2 vom: 13. Jan.

Sprache:

Englisch

Beteiligte Personen:

Lauer, Nathan [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

BKL:

42.41$jPflanzenphysiologie

Themen:

Cell signaling
Stress physiology
Systemic acquired acclimation

Anmerkungen:

© The Author(s) under exclusive licence to Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:

10.1007/s11738-023-03515-w

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2133371710

Zugang & Verfügbarkeit




Zugehörige Publikationen/Bände

    Haven't found what you're looking for?