Application of tomato gene SlSAUR58 in controlling tomato growth and drought resistance

The invention discloses application of tomato gene SISAUR58 in controlling tomato growth and drought resistance. It is discovered through series of experiments discover that by overexpression of SISAUR58 gene in two different tomato genes Micro-Tom and Ailsa Crag, all plants are dwarfed with the quantity and area of leaves significantly reduced and drought resistance improved, while by inhibitingSAUR58, nutrient growth of plants can be accelerated. A method established herein is applicable to tomato, not limited to its growth and resistance control, and is applicable to the increase of plantbiological yield and creation of novel drought-resistant varieties. 本发明公开了番茄基因SlSAUR58在调控番茄生长和抗旱性中的应用。本发明通过系列实验发现在番茄"Micro-Tom"与"Ailsa Crag"两个不同基因型中超量表达SlSAUR58基因，植株均发生矮化且叶片数量和面积明显减小，抗旱性提高，而抑制SAUR58可加速植株的营养生长。本发明建立的方法可用于番茄且不限于番茄的生长与抗性调控，可应用于提高植物生物学产量与创制抗旱新品种。