Over-expression of OsUGE-1 altered raffinose level and tolerance to abiotic stress but not morphology in Arabidopsis.
OsUGE-1 is known to be induced by various abiotic stresses, but its exact function in plants is unclear. In the present study, OsUGE-1 was over-expressed in Arabidopsis, transgenic plants conferred tolerance to salt, drought and freezing stress without altering plant morphology. In addition, transgenic plants showed a higher level of the soluble sugar raffinose than did wild-type plants. Our results suggest that elevated level of raffinose with over-expressed OsUGE-1 resulted in enhanced tolerance to abiotic stress. Thus, the gene may be applied to improve tolerance to abiotic stress in crops.
Liu
Hui-Li
HL
Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, The Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing 100093, China.
Dai
Xiao-Yan
XY
Xu
Yun-Yuan
YY
Chong
Kang
K
D017360:Arabidopsis / Q000235:genetics* / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D012275:Oryza / Q000235:genetics*; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D030821:Plants, Genetically Modified; D011887:Raffinose / Q000378:metabolism*
D010940:Plant Proteins; D011887:Raffinose