Rice Potassium Transporter OsHAK8 Mediates K⁺ Uptake and Translocation in Response to Low K⁺ Stress.

ABSTRACT: Potassium (K⁺) levels in the soil often limit plant growth and development. As a result, crop production largely relies on the heavy use of chemical fertilizers, presenting a challenging problem in sustainable agriculture. To breed crops with higher K⁺-use efficiency (KUE), we must learn how K⁺ is acquired from the soil by the root system and transported to the rest of the plant through K⁺ transporters. In this study, we identified the function of the rice K⁺ transporter OsHAK8, whose expression level is downregulated in response to low-K⁺ stress. When OsHAK8 was disrupted by CRISPR/Cas9-mediated mutagenesis, Oshak8 mutant plants showed stunted growth, especially under low-K⁺ conditions. Ion c

SUBMITTER: Wang X 

PROVIDER: S-EPMC8369890 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature