Under salt stress guard cells rewire ion transport and abscisic acid signaling

Under salt stress guard cells rewire ion transport and abscisic acid signaling

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 231(2021), 3 vom: 28. Aug., Seite 1040-1055
1. Verfasser: Karimi, Sohail M (VerfasserIn)
Weitere Verfasser: Freund, Matthias, Wager, Brittney M, Knoblauch, Michael, Fromm, Jörg, M Mueller, Heike, Ache, Peter, Krischke, Markus, Mueller, Martin J, Müller, Tobias, Dittrich, Marcus, Geilfus, Christoph-Martin, Alfarhan, Ahmed H, Hedrich, Rainer, Deeken, Rosalia
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't abscisic acid (ABA) glycophyte Arabidopsis guard cell halophyte Thellungiella/Eutrema ion transport salt stress soil stomata mehr... Arabidopsis Proteins Abscisic Acid 72S9A8J5GW
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520 |a Soil salinity is an increasingly global problem which hampers plant growth and crop yield. Plant productivity depends on optimal water-use efficiency and photosynthetic capacity balanced by stomatal conductance. Whether and how stomatal behavior contributes to salt sensitivity or tolerance is currently unknown. This work identifies guard cell-specific signaling networks exerted by a salt-sensitive and salt-tolerant plant under ionic and osmotic stress conditions accompanied by increasing NaCl loads. We challenged soil-grown Arabidopsis thaliana and Thellungiella salsuginea plants with short- and long-term salinity stress and monitored genome-wide gene expression and signals of guard cells that determine their function. Arabidopsis plants suffered from both salt regimes and showed reduced stomatal conductance while Thellungiella displayed no obvious stress symptoms. The salt-dependent gene expression changes of guard cells supported the ability of the halophyte to maintain high potassium to sodium ratios and to attenuate the abscisic acid (ABA) signaling pathway which the glycophyte kept activated despite fading ABA concentrations. Our study shows that salinity stress and even the different tolerances are manifested on a single cell level. Halophytic guard cells are less sensitive than glycophytic guard cells, providing opportunities to manipulate stomatal behavior and improve plant productivity 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a abscisic acid (ABA) 
650 4 |a glycophyte Arabidopsis 
650 4 |a guard cell 
650 4 |a halophyte Thellungiella/Eutrema 
650 4 |a ion transport 
650 4 |a salt stress 
650 4 |a soil 
650 4 |a stomata 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
700 1 |a Freund, Matthias  |e verfasserin  |4 aut 
700 1 |a Wager, Brittney M  |e verfasserin  |4 aut 
700 1 |a Knoblauch, Michael  |e verfasserin  |4 aut 
700 1 |a Fromm, Jörg  |e verfasserin  |4 aut 
700 1 |a M Mueller, Heike  |e verfasserin  |4 aut 
700 1 |a Ache, Peter  |e verfasserin  |4 aut 
700 1 |a Krischke, Markus  |e verfasserin  |4 aut 
700 1 |a Mueller, Martin J  |e verfasserin  |4 aut 
700 1 |a Müller, Tobias  |e verfasserin  |4 aut 
700 1 |a Dittrich, Marcus  |e verfasserin  |4 aut 
700 1 |a Geilfus, Christoph-Martin  |e verfasserin  |4 aut 
700 1 |a Alfarhan, Ahmed H  |e verfasserin  |4 aut 
700 1 |a Hedrich, Rainer  |e verfasserin  |4 aut 
700 1 |a Deeken, Rosalia  |e verfasserin  |4 aut 
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773 1 8 |g volume:231  |g year:2021  |g number:3  |g day:28  |g month:08  |g pages:1040-1055 
856 4 0 |u http://dx.doi.org/10.1111/nph.17376  |3 Volltext 
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