diff --git a/studies/Ribes_nigrum_transcriptome/README.md b/studies/Ribes_nigrum_transcriptome/README.md
index 436fdbb46f6a43b54d673d9760b1558e256e1dc9..28be15219554bae19dbe16d52eed7ca1dfc12467 100644
--- a/studies/Ribes_nigrum_transcriptome/README.md
+++ b/studies/Ribes_nigrum_transcriptome/README.md
@@ -1,7 +1,7 @@
 
 # Drought stress experiment
 
-A greenhouse experiment was performed to investigate the influence of drought stress on the gene expression of *R. nigrum* cv Rosenthals Langtraubige. Stressed plants that were not watered for 4 days were compared to control plants with continuous irrigation. Both leaves and roots were sampled for RNA extraction.
+A greenhouse experiment was performed to investigate the influence of drought stress on the gene expression of *R. nigrum* cv Rosenthals Langtraubige. Stressed plants (A-C) that were not watered for 4 days were compared to control plants (D-F) with continuous irrigation. Both leaves and roots were sampled for RNA extraction.
 
 
 <img src="./protocols/greenhouse_drought_experiment.png" width="400">