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2018 1

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PtHAK5, a candidate for mediating high-affinity K

Haili YANG, Weidan ZHANG, Weiwei CHAI, Wenying WANG, Li GAO, Jing ZHANG, Yongping WANG, Suo-Min WANG

《农业科学与工程前沿（英文）》 2018年 第5卷 第1期   页码 108-117 doi: 10.15302/J-FASE-2018200

摘要： is a typical salt-exclu-ding halophytic grass with strong salt-tolerance, which enhances tolerance by restricting Na influx as well as having a strong selectivity for K over Na . The HAK5 K transporters generally modulate effective K acquisition in plants, especially under low K condition. In this study, from was isolated by RT-PCR and characterized using yeast complementation. The results showed PtHAK5 consisted of 784 amino acids and shared over 80% homology with the identified high-affinity K transporter HAK5 from other higher plants. The expression of rescued the K -uptake-defective phenotype of yeast strain CY162. In conclusion, PtHAK5 is a candidate for mediating high-affinity K uptake under low K conditions.

关键词： K+ uptake     PtHAK5     Puccinellia tenuiflora     yeast complementation    

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PtHAK5, a candidate for mediating high-affinity K

Haili YANG, Weidan ZHANG, Weiwei CHAI, Wenying WANG, Li GAO, Jing ZHANG, Yongping WANG, Suo-Min WANG

期刊论文