Fotograaf: Korver

dhr. R.A. (Ruud) Korver MSc

  • Faculteit der Natuurwetenschappen, Wiskunde en Informatica
  • Bezoekadres
    Science Park A
    Science Park 904  Amsterdam
  • Postadres:
    Postbus  94215
    1090 GE  Amsterdam

My name is Ruud Korver and I started my PhD in September 2014 in the group of Christa Testerink. I am interested in the plants responses to abiotic stress. My role in the group is to focus more on the biochemistry and cell biology behind plant salt stress and in particular halotropism. Using different techniques I get to unravel pieces of the mechanism behind halotropism. This way, I am becoming an all-rounder in the lab. And that is necessary because finding a novel salt tolerance mechanism is one thing, but understanding exactly how it works is where the true challenge lies! Using and learning multiple different molecular tools is what makes my work challenging everyday. But the work environment in our department and especially in our group is excellent and helps me to one day become a molecular salinity tolerance expert!

If you are also interested in the molecular mechanisms behind the plants salt stress response there are always possibilities for internships, you can contact me ( or Christa Testerink (

Christa Testerink's personal site where more information about our group can be found.

The upper picture shows the current halotropism model: When the root senses salt in the soil the PIN2 auxin efflux carriers on the side of the root closest to the salt will be internalized. This causes a asymmetrical distribution of the auxin in the root, an accumulation of auxin inhibits cell elongation and therefore the root will bend away from the salt. The PIN2 proteins are internalized through Clathrin mediated endocytosis (CME) which is dependent on Phosphatidic Acid (PA) which is a product of PLDz 1/2. Left bottom corner: To determine the localization of proteins during salt stress confocal microscopy is used. Right bottom corner: The affinity of proteins with different phospholipids is being studied using Liposome Binding Assays (LBAs).

Project 1:

Project 2:


Galvan-Ampudia, C. S., Julkowska, M. M., Darwish, E., Gandullo, J., Korver, R. A., Brunoud, G., ... & Testerink, C. (2013). Halotropism is a response of plant roots to avoid a saline environment. Current Biology, 23(20), 2044-2050.

Ruud Korver
PhD Student

Group of Christa Testerink

Plant Physiology
Swammerdam Institute for Life Sciences
University of Amsterdam

Mailing address: Postbus 94215, 1090 GE Amsterdam
Visiting address: Science Park 904, 1098 XH Amsterdam
                           room no. C2.208




  • Putta, P., Rankenberg, J., Korver, R. A., van Wijk, R., Munnik, T., Testerink, C., & Kooijman, E. E. (2016). Phosphatidic acid binding proteins display differential binding as a function of membrane curvature stress and chemical properties. Biochimica et Biophysica Acta, 1858(11), 2709-2716. DOI: 10.1016/j.bbamem.2016.07.014 [details]
  • van den Berg, T., Korver, R. A., Testerink, C., & Ten Tusscher, K. H. W. J. (2016). Modeling halotropism: a key role for root tip architecture and reflux loop remodeling in redistributing auxin. Development - The Company of Biologists, 143(18), 3350-62. DOI: 10.1242/dev.135111 [details]
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