OsDEG10 encoding a small RNA-binding protein is involved in abiotic stress signaling.
Excessive light can be harmful to photosynthetic apparatus since it causes photoinhibition and photooxidation, and plants often encounter hypoxic or anoxic environments when they become submerged by heavy rain or an ensuing flood. In this study, Oryza sativa Differentially Expressed Genes (OsDEGs) from rice under photooxidation and anoxia conditions were isolated using DD-PCR. Among them, OsDEG10 is predicted to encode a small RNA-binding protein (RBP) and the transcript levels of OsDEG10 strongly increased under most of abiotic stress treatments such as high light, anoxia, NaCl, ABA, MV and cold. However, the transcript levels of two rice OsDEG10 homologs were not changed under those treatments. OsDEG10 RNAi transgenic plants were more sensitive to high light and cold stresses compared to wild-type plants. Our results suggest that OsDEG10 is a small RBP involved in the response to various abiotic stresses.
Park
Hee-Yeon
HY
Department of Biological Sciences, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea.
Kang
In Soon
IS
Han
Ji-Sung
JS
Lee
Choon-Hwan
CH
An
Gynheung
G
Moon
Yong-Hwan
YH
D000595:Amino Acid Sequence; D000693:Anaerobiosis; D003080:Cold Temperature; D055864:Droughts; D008027:Light; D008969:Molecular Sequence Data; D012275:Oryza / Q000235:genetics / Q000378:metabolism / Q000502:physiology* / Q000528:radiation effects; D009997:Osmotic Pressure; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D030821:Plants, Genetically Modified / Q000235:genetics / Q000378:metabolism / Q000502:physiology; D016601:RNA-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D015398:Signal Transduction; D013312:Stress, Physiological / Q000235:genetics; D014158:Transcription, Genetic; D015854:Up-Regulation
D010940:Plant Proteins; D016601:RNA-Binding Proteins