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Regulation mechanisms involved in plant transport processes

English title Regulation mechanisms involved in plant transport processes
Applicant Martinoia Enrico
Number 117790
Funding scheme Project funding (Div. I-III)
Research institution Institut für Pflanzen- und Mikrobiologie Universität Zürich
Institution of higher education University of Zurich - ZH
Main discipline Botany
Start/End 01.10.2007 - 28.02.2011
Approved amount 433'761.00
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All Disciplines (2)


Keywords (4)

regulation; transport; vacuole; ABC transporter

Lay Summary (English)

Lay summary
Transport processes allow plants to create solute gradients between the environment and the plant cell but also between different cellular compartments. The tight regulation of solute concentrations in the different compartments allows the plant to optimize cellular metabolism. Until recently research on plant transporter was mainly focused on the identification of the substrate for a specific transporter. Transcript analysis has shown that in several cases the transport capacity might be regulated at the transcriptional level. However, our knowledge how the amount of transcripts reflects the protein level is in most cases an open question. There are only a few examples where regulation of the transport activity at the posttranscriptional level has been elucidated. Such a modulation of the transport activity allows a plant to adapt fastly to varying environmental and developmental. Posttranslational modifications may include phosphorylation but also the induction of protein-protein interactions which may change transport activity and properties. The aim of this project is to elucidate regulation mechanisms of transport processes more in depth. We will analyze phosphorylation of some plant transporters in response to growth conditions and search for interacting partners, which might have an impact in the transport activity and possibly substrate specificity. This new knowledge will allow us to integrate transport processes and metabolism.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants


Associated projects

Number Title Start Funding scheme
135747 ABC transporters involved in signalling events 01.04.2011 Project funding (Div. I-III)
133863 Live Cell Imaging to study dynamic developmental processes and protein-protein intertactions in planta 01.12.2011 R'EQUIP
103911 Die Rolle von ABC Transportern bei der Schliesszellregulation 01.04.2004 Project funding (Div. I-III)