Salt Tolerance in Rice: Focus on Mechanisms and Approaches

摘要

Salt tolerance is an important constrain for rice,which is generally categorized as a typical glycophyte.Soil salinity is one of the major constraints affecting rice production worldwide,especially in the coastal areas.Susceptibility or tolerance of rice plants to high salinity is a coordinated action of multiple stress responsive genes,which also interacts with other components of stress signal transduction pathways.Salt tolerant varieties can be produced by marker-assisted selection or genetic engineering by introducing salt-tolerance genes.In this review,we have updated on mechanisms and genes which can help in transferring of the salt tolerance into high-yielding rice varieties.We have focused on the need for integrating phenotyping,genomics,metabolic profiling and phenomics into transgenic and breeding approaches to develop high-yielding as well as salt tolerant rice varieties.