Research Progress in Salt Secretion of Salt Glands in Plants
Salt gland is an important epidermal structure of recreto-halophyte, which can directly exclude excessive ions out of plants in order to avoid salt stress. Salt-tolerance mechanism was studied mainly from the two aspects before 1990s: salt gland ultrastructure and physiology. Recent studies revealed the structures of salt glands involved in salt secretion and the key genes participating in salt secretion. The mechanism of salt secretion may be explained. In this review, we discussed the progress in the study of salt gland structure, and the physiology and molecular mechanisms of salt secretion. Future prospects related to salt secretion are proposed.
salt glandsalt secretion of salt glandsalt gland structuregenessalt secretion mechanism