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Updated: Apr 30, 2026

A Simple Planting Technique for Re-establishing Trees Where Frequent Inundation Occurs

A Simple Planting Technique for Re-establishing Trees Where Frequent Inundation Occurs

Published on: January 26, 2018

Rorippa islandica is a genetically accessible dicot model system to study flooding tolerance.

Malte M Bartylla¹, Emma L R Düthorn¹, Jana T Müller¹

¹Department of Plant Physiology, University of Bayreuth, Germany.

Plant Physiology

|April 29, 2026

Summary

Rorippa islandica shows high submergence tolerance and is genetically accessible for studying flood tolerance mechanisms in plants. However, the specific gene RiBCA3 did not prove to be essential for this tolerance.

Keywords:

Rorippa islandica Rorippa stylosa Submergence ethylene flooding hypoxia transcriptomics

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Area of Science:

Plant Biology
Genetics
Molecular Biology

Background:

Crop plants often lack flood tolerance, limiting agricultural productivity.
Wild Brassicaceae species, like Rorippa islandica, offer potential for understanding flood tolerance mechanisms.
Genetic limitations in wild species have hindered detailed studies of flood tolerance traits.

Purpose of the Study:

To identify and characterize a genetically accessible, flood-tolerant plant model for mechanistic studies.
To compare the submergence response of Rorippa islandica with a sensitive relative, R. stylosa.
To investigate the role of the candidate gene RiBCA3 in submergence tolerance.

Main Methods:

Comparative transcriptomics of Rorippa islandica and Rorippa stylosa under submergence.
CRISPR-Cas9 gene editing to create RiBCA3 knockout lines in R. islandica.
Assessment of submergence survival and underwater photosynthesis in wild-type and knockout lines.

Main Results:

Rorippa islandica exhibits high submergence tolerance and is amenable to genetic manipulation.
Comparative transcriptomics revealed overlapping responses to submergence in R. islandica and R. stylosa.
Knockout of RiBCA3 did not affect submergence survival or underwater photosynthesis, suggesting it's not essential for these traits.

Conclusions:

Rorippa islandica is a suitable model for studying plant submergence tolerance, particularly in dicots.
The precise molecular mechanisms underlying R. islandica's flood tolerance remain to be elucidated.
This research provides a foundation for future investigations into flood tolerance in crops like Brassica.