Analysis of AsEXP1 gene related to drought tolerance in creeping bentgrass.

In this report,the expression of AsEXP1 gene was tested under drought stress among turf-grass species.The result showed significant correlation between AsEXP1 gene expression and drought tolerance.It is expressed in drought tolerant plants but silent in drought sensitive plants.Further analysis with turf-grass‘PennA-4’,a heat tolerant but drought sensitive grass species,revealed that the induced AsEXP1 by heat was beneficial for plants to tolerate drought stress.