Regulatory modules of carbon resource allocation under different phosphate availabilities
Phosphate limitation generally enhances carbon allocation towards the root to produce a large root system. In addition, phosphate limitation stimulates the secretion of chelating agents such as citric acid and other carboxylates, or the release of carbon to arbuscular mycorrhizal fungi in exchange for phosphate.
Our Vision
In this Research Subject aims to explore molecular regulatory networks integrating different genetic dispositions for phosphate use efficiency and tolerance with resulting alterations in carbon allocation under different phosphate availabilities from the soil. We are specifically interested in the underlying molecular processes (metabolic pathways, kinases, phosphatasese, transporters) which become active at different developmental phases.
The project firstly will identify fundamental adaptive processes based on hydroponic cultures and then expand the research to field samples.
Our Topics
- Topic 1 (German):
Establishing regulatory networks from large-scale quantitative proteomic profiling in response to low phosphate availability - Topic 2 (German):
Molecular basis of P use efficiency revealed from a comparative analysis of maize varieties with different P tolerance and carbon allocation properties - Topic 3 (German):
From lab to field: Systematic validation of regulatory target genes in field experiments - Topic 1 (Chinese):
Accumulation and allocation of starch in source and sink organs in maize under different P regimes - Topic 2 (Chinese):
Spatiotemporal accumulation of carbohydrates and regulation of carbon metabolism in the maize ear under different P regimes - Regulation of carbohydrate transport by ZmPHR in the maize ear under P limitation
