Hormonal Crosstalk in Plant Development
Mgr. Eva Frimlová, PhD.
THEMATIC RESEARCH FOCUS
- Growth and development of plants are regulated by signalling substances such as plant hormones. In plants, interactions between hormonal pathways represent crucial factors that govern their action. The molecular basis for hormonal crosstalk is largely unknown.
- Research group aims to identify the molecular and cellular mechanism(s) underlying crosstalk of hormonal pathways in organogenesis and other plant developmental processes.
- Research group uses lateral root formation in Arabidopsis as an ideal experimental model to study mechanisms of plant hormone action, the molecular basis of their interactions, and the role of these interactions in organogenesis.
1. Convergence of hormonal pathways on transport-dependent auxin distribution upstream of lateral root formation:
Identification of key points in which auxin and other signalling pathways converge during lateral root formation and the molecular components involved in the process.
2. Role of auxin-cytokinin interaction in lateral root formation:
Cell type-specific transcriptome analysis to investigate molecular events involved in auxin-cytokinin-regulated lateral root organogenesis
3. Identification of components of hormonal crosstalk by genetic approaches:
Mutant screens that will specifically target interactions between selected hormonal pathways.
4. Formulation of general models for hormonal regulation of organogenesis:
The acquired knowledge on molecular networks and their mutual interactions in lateral root organogenesis will be used to mathematically model these processes and to extrapolate them onto other developmental situations.