Research advances on the molecular mechanisms of aluminum tolerance in plants
Aluminum toxicity is the major factor for inhibiting plant growth and crop yield in acid soils.External exclusion and internal detoxification have been considered as the two most important mechanisms to deal with Al stress.Recently,a series of A1 tolerance genes have been identified in various plants,such as genes related to organic acid transporters (ALMT and MATE),ABC transporters and Nramp gene family,magnesium transporters and research about the function and transcriptional regulation of these genes also has obtained great progress.In this paper,the progresses on the molecular aspects of Al tolerance in plants are summarized and the prospects in this field are discussed.