Soil salinization is a serious problem in agricultural lands worldwide. Understanding the mechanisms of salt-tolerant plants will contribute to knowledge necessary to genetically engineer salt-tolerant crops that grow on these saline lands. We identified a genotype of Sporobolus virginicus, a salt-tolerant turf grass, that showed a salinity tolerance to up to a three-fold higher NaCl concentration than seawater salinity. In addition to salt secretion from salt glands on the leaves, this genotype accumulated K+ and proline, a compatible solute, to higher levels than other genotypes under salinity. These properties must contribute to the advanced salt tolerance of this genotype.
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