@Article{phyton.2022.017633, AUTHOR = {Ying Chen, Chuanqiang Liu, Qingqing He, Jianjian Li, Jingjing Wang, Ling Li, Xiang Yao, Shenghao Zhou, Haoran Wang}, TITLE = {EoPHR2, a Phosphate Starvation Response Transcription Factor, Is Involved in Improving Low-Phosphorus Stress Resistance in Eremochloa ophiuroides}, JOURNAL = {Phyton-International Journal of Experimental Botany}, VOLUME = {91}, YEAR = {2022}, NUMBER = {3}, PAGES = {651--665}, URL = {http://www.techscience.com/phyton/v91n3/45309}, ISSN = {1851-5657}, ABSTRACT = {As a macronutrient, Phosphorus (P) takes many roles in plant growth and development. It should be significant to explore the molecular mechanism of low-phosphorus stress response of plants. Phosphate starvation response (PHR) transcription factors play important roles in response to phosphorus deficiency stress in plants. In this study, we isolated a gene related to the plant phosphorus signaling system from the acid-soil-resistant centipedegrass (Eremochloa ophiuroides [Munro] Hack.), termed EoPHR2. The subcellular localization of EoPHR2 protein was observed to be nuclear located. The expression patterns of EoPHR2 in different tissues and Al/Pi-stress conditions were analyzed by qRT-PCR, they suggested a potential role in response to the multiple-stress under acid soil adversity. Based on the functional identification through transgenic plants, we found that (1) EoPHR2 is involved in the Pi-signaling pathway, and (2) overexpression of EoPHR2 mimics Pi-starvation signalling resulting on enhanced roots whether under Pi-deficiency stress or not. In conclusion, EoPHR2 transcription factor plays a role in response to the multiple stresses under acid soil conditions, improving the low-phosphorus stress resistance of Eremochloa ophiuroides.}, DOI = {10.32604/phyton.2022.017633} }