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Extreme flooding tolerance in Rorippa

Title data

Akman, Melis ; Bhikharie, Amit ; Mustroph, Angelika ; Sasidharan, Rashmi:
Extreme flooding tolerance in Rorippa.
In: Plant Signaling & Behavior. Vol. 9 (2014) Issue 2 . - e27847.
ISSN 1559-2324
DOI: https://doi.org/10.4161/psb.27847

Official URL: Volltext

Project information

Project financing: Stifterverband für die deutsche Wissenschaft

Abstract in another language

Low oxygen stress imposed by floods creates a strong selection force shaping plant ecosystems in flood-prone areas. Plants inhabiting these environments adopt various adaptations and survival strategies to cope with increasing water depths. Two Rorippa species, R. sylvestris and R. amphibia that grow in naturally flooded areas, have high submergence tolerance achieved by the so-called quiescence and escape strategies, respectively. In order to dissect the molecular mechanisms involved in these strategies, we investigated submergence-induced changes in gene expression in flooded roots of Rorippa species. There was a higher induction of glycolysis and fermentation genes and faster carbohydrate reduction in R. amphibia, indicating a higher demand for energy potentially leading to faster mortality by starvation. Moreover, R. sylvestris showed induction of genes improving submergence tolerance, potentially enhancing survival in prolonged floods. Additionally, we compared transcript profiles of these 2 tolerant species to relatively intolerant Arabidopsis and found that only Rorippa species induced various inorganic pyrophosphate dependent genes, alternatives to ATP demanding pathways, thereby conserving energy, and potentially explaining the difference in flooding survival between Rorippa and Arabidopsis.

Further data

Item Type: Article in a journal
Refereed: No
Additional notes: PubMed-ID: 16608449
BAYCEER121807
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Physiology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professorship Plant Genetics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professorship Plant Genetics > Professorship Plant Genetics- Univ.Prof. Dr. Angelika Mustroph
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Molecular Biosciences
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center for Molecular Biosciences - BZMB
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Date Deposited: 01 Apr 2015 07:07
Last Modified: 26 Apr 2016 08:28
URI: https://eref.uni-bayreuth.de/id/eprint/9616