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Increased tolerance to low K+, and to cationic stress of Arabidopsis plants by expressing the F130S mutant version of the K+ transporter AtHAK5.

Plant physiology and biochemistry : PPB - 1 Jul 2024

Jiménez-Estévez Elisa, Martínez-Martínez Almudena, Amo Jesús, Yáñez Adrián, Miñarro Pedro, Martínez Vicente, Nieves-Cordones Manuel, Rubio Francisco

Abstract excerpt

Potassium (K+) selectivity of high-affinity K+ uptake systems is crucial for plant growth under low K+ and in the presence of inhibitors of K+ uptake that are toxic to plants such as Na+ or Cs+. Here, we express a mutated version of the Arabidopsis AtHAK5 high-affinity K+ transporter consisting on a change of phenylalanine 130 to serine (F130S) in athak5 akt1 double mutant plants. F130S-expressing plants show...

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Identifiers

PMID: 38797008
DOI: 10.1016/j.plaphy.2024.108768

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