ChinaCountry of destination:
Regional climate changes, particularly temperature increases, affect ecosystems all around the word. Climate change is associated to greenhouse gas (GHG) emission. Agriculture is responsible of a large part of the GHG emissions and has to cope with the challenges of sustainably feeding a growing planet. Ammonia-nitrate fertilizers are responsible of the release of the N2O and nitrate production consumes up to 2% of the world energy, affecting also the carbon balance. Reducing fertilizer use without affecting yields and product quality requires rethinking the breeding strategies and the crop management techniques. The challenge is then to increase the performances of plants for nitrogen recycling and remobilization. For that, the study of the impact of recycling pathways involved in seed production and seed filling is essential to improve significantly nitrogen use efficiency under reduced fertilizer conditions for healthy planet. The first evidence that autophagy is essential for nitrogen recycling and remobilization in plants has been provided by SATURNE group using 15N tracing. The main objective is to identify new actors playing a role in plant nitrogen management for seed filling concomitantly to autophagy process. The work hypothesis is that such actors are deregulated in autophagy mutants and that their encoding genes are co-expressed with autophagy genes in senescing leaves and when plants are submitted to environmental stresses. Our action will consist in using bioinformatics, physiology and reverse genetic to address this question. The metabolome, transcriptome and proteome data sets were used for the bioinformatics analysis of autophagy partners. Public available data will also be used to perform a network analysis of autophagy regulation. Finally the protease candidates playing a role in the autophagy process have been identified and their mutants will be used for further functional characterization.
I obtained my bachelor degree in Biotechnology at Northwest A&F University in 2012. Afterwards, I started my PhD at Northwest A&F University (Yangling, Shaanxi Province, China). During my PhD, I applied scanning ion-selecting electrode technique, molecular physiological techniques, and RNA-seq technique to uncover the comprehensive morphological and physiological response to changes in nitrogen levels underlying transcriptomic reprogramming in poplar species. After my PhD defense in June 2016, I was recruited by Huazhong Agricultural University as lecturer. One year later, I joined Masclaux-Daubresse’s group as AgreenSkills post-doc. Currently, my research interest focus on using multiple omics approaches to identify the candidate genes involving in autophagy processes.
Xia W, Yu H, Cao P, Luo J and Wang N., 2017. Identification of TIFY Family Genes and Analysis of Their Expression Profiles in Response to Phytohormone Treatments and Melampsora larici-populina Infection in Poplar. Front. Plant Sci. 8:493. Doi: 10.3389/ fpls.2017.00493.
Jie Luo, Wenguang Shi, Hong Li, Dennis Janz, Zhi-Bin Luo*, 2015. The conserved saltresponsive genes in the roots of Populus × canescens and Arabidopsis thaliana. Environmental and Experimental Botany. 129:48-56.
Jie Luo*, Jing Zhou*, Hong Li, Wenguang Shi, Andrea Polle, Mengzhu Lu, Xiaomei Sun, Zhi-Bin Luo*, 2015. Global poplar root and leaf transcriptomes reveal links between growth and stress responses under nitrogen starvation and excess. Tree Physiology. 35:1283-302.
Jie Luo, Jingjing Qin, Hong Li, Tongxian Liu, Andrea Polle, Changhui Peng and Zhi-Bin Luo*, 2013. Net fluxes of ammonium and nitrate in connection with plasma membrane H+-ATPases in fine roots of Populus popularis. Planta 237: 919-931.
Jie Luo, Hong Li, Tongxian Liu, Andrea Polle, Changhui Peng, Zhi-Bin Luo*, 2013. Nitrogen metabolism of two contrasting poplar species during acclimation to limiting nitrogen availability. Journal of Experimental Botany. 64:4207-4224.