Graphical Abstract

Public Summary

● Improvement of salt stress tolerance in plants involves the homeostasis of ions, hormones, and reactive oxygen species.

● Identification of GIPC sphingolipids as salt sensors is a major breakthrough in salt stress field.

● Plants may sense salt stress in multiple organelles.

● Study of salt-tolerant mechanisms in halophytes will be helpful for the culture of salt-tolerant crops in future.

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