Abstract:

Salinity is a detrimental environmental factor for plant growth and development.The responses of plants to salt stress are rather complicated and determined by multiple physiological and biochemical pathways.This paper reviewed the achievements of studies on adaptation mechanism of plants to salt stress,including induction of antioxidative enzymes detoxifying radicals,adjustment of plant hormones,compartmentalization of ions,selective accumulation or exclusion of ions and synthesis of compatible solutes.So far,adaptation mechanism of plants to salt stress has been understood in some respects,but some problems especially in molecular level still need to be solved using techniques of molecular biology,techniques of gene engineering and mutant filtration.

Key words: plant, salt stress, adaptation mechanism