Overexpression of <i>OsMAPK2</i>Enhances Low Phosphate Tolerance in Rice and <i>Arabidopsis thaliana</i>
Overexpression of <i>OsMAPK2</i>Enhances Low Phosphate Tolerance in Rice and <i>Arabidopsis thaliana</i>作者机构：College of Natural Resources and Life Science Dong-A University Busan South Korea
出 版 物：《American Journal of Plant Sciences》 (美国植物学期刊（英文）)
年 卷 期：2014年第5卷第4期
页 面：452-462页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Rice (Oryza sativa) Phosphorylation MAP Kinase Phosphate Homeostasis
摘 要：The mitogen-activated protein kinase (MAPK) cascade is the most important mechanism in environmental responses and developmental processes in plants. The OsMAPK2 gene has been found to function in plant tolerance to diverse biotic/abiotic stresses. This paper presents evidence that OsMAPK2 (Oryza sativa MAP kinase gene 2) is responsive to Pi deficiency and involved in Pi homeostasis. We found that full-length expression of OsMAPK2 was up-regulated in both rice plants and cell culture in the absence of inorganic phosphate (Pi). The transgenic rice and Arabidopsis plants overexpressing OsMAPK2 showed affected root development and increased plant Pi content compared with wild-type plants. Overexpression of OsMAPK2 controlled the expression of several Pi starvation-responsive genes. Our results indicated that OsMAPK2 enables tolerance phosphate deficiency and is involved in Pi homeostasis.
维普期刊数据库