翦股颖AsEXP1基因的抗旱性分析
Analysis of AsEXP1 gene related to drought tolerance in creeping bentgrass
-
摘要: 分析了不同匍匐翦股颖草坪草品种在干旱环境下AsEXP1基因的表达状况,发现AsEXP1基因的表达与草坪草品种的抗旱性呈显著正相关关系,亦即在耐旱草坪草品种中表达,而在不耐旱草坪草品种中不表达。对耐热但不耐旱草坪草品种‘PennA--4’的进一步检测分析发现,AsEXP1基因经高温诱导表达后,显著增强了‘PennA--4’品种的耐旱性。Abstract: 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.