ITPK4 is critical for root elongation under salt stress in Arabidopsis

Salt stress is one of the abiotic stresses that adversely affect plant growth and agricultural productivity all over the word. Root is the organ that immediately suffers salt stress in soil, and thus the ability of roots to adapt to high salinity is critical for salt stress tolerance in plants. During a long-term evolution, plants have developed a variety of strategies to respond to salt stress. The mechanisms of salt stress response are complicated and are stilly largely unknown. In this study, through the screening of Arabidopsis mutants that are sensitive to salt stress, we identified a mutant itpk4, that displayed reduced root growth, reduced seeds germination, and increased root hairs under salt stress compared with wild type plants. in future, the molecular mechanism underlying the role of ITPK4 in root elongation under high. mRNA extracting from wild type (WT)and 6-6,