TY  - JOUR
A1  - Bazihizina, Nadia
A1  - Böhm, Jennifer
A1  - Messerer, Maxim
A1  - Stigloher, Christian
A1  - Müller, Heike M.
A1  - Cuin, Tracey Ann
A1  - Maierhofer, Tobias
A1  - Cabot, Joan
A1  - Mayer, Klaus F. X.
A1  - Fella, Christian
A1  - Huang, Shouguang
A1  - Al‐Rasheid, Khaled A. S.
A1  - Alquraishi, Saleh
A1  - Breadmore, Michael
A1  - Mancuso, Stefano
A1  - Shabala, Sergey
A1  - Ache, Peter
A1  - Zhang, Heng
A1  - Zhu, Jian‐Kang
A1  - Hedrich, Rainer
A1  - Scherzer, Sönke
T1  - Stalk cell polar ion transport provide for bladder‐based salinity tolerance in Chenopodium quinoa
JF  - New Phytologist
N2  - Chenopodium quinoa uses epidermal bladder cells (EBCs) to sequester excess salt. Each EBC complex consists of a leaf epidermal cell, a stalk cell, and the bladder.

Under salt stress, sodium (Na\(^{+}\)), chloride (Cl\(^{−}\)), potassium (K\(^{+}\)) and various metabolites are shuttled from the leaf lamina to the bladders. Stalk cells operate as both a selectivity filter and a flux controller.

In line with the nature of a transfer cell, advanced transmission electron tomography, electrophysiology, and fluorescent tracer flux studies revealed the stalk cell’s polar organization and bladder‐directed solute flow.

RNA sequencing and cluster analysis revealed the gene expression profiles of the stalk cells. Among the stalk cell enriched genes, ion channels and carriers as well as sugar transporters were most pronounced. Based on their electrophysiological fingerprint and thermodynamic considerations, a model for stalk cell transcellular transport was derived.
KW  - halophyte
KW  - polar ion transport
KW  - quinoa
KW  - salt tolerance
KW  - stalk cell
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-287222
VL  - 235
IS  - 5
SP  - 1822
EP  - 1835
ER  -