elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Towards a systems understanding of the gravitropic growth response in plants: lessons from ground and space experiments

Palme, Klaus and Wang, Hui and Yu, Xin and Andrieux, Geoffroy and Metzger, Patrick and Aubry-Hivet, Dorothee and Walsh, Sean and Pasternak, Taras and Schmidt, Thorsten and Ronneberger, Olaf and Rigo, Gabor and Cséplö, Ágnes and Tietz, Olaf and Zurbriggen, Matias D. and Dovzhenko, Alexander and Boerries, Melanie and Busch, Hauke and Li, Chuanyou and Hemmersbach, Ruth and Li, Xugang and Ditengou, Franck (2015) Towards a systems understanding of the gravitropic growth response in plants: lessons from ground and space experiments. The 6th China-Germany Workshop on Microgravity and Space Life Sciences, 26.-28. Sept. 2015, Hangzhou, China.

Full text not available from this repository.

Official URL: http://6thc-d.csp.escience.cn/dct/page/1

Abstract

Understanding the mechanisms through which cells perceive and respond to gravity is of fundamental relevance to space biology. In plants altered gravity induces asymmetric cell growth leading to root bending. This process depends on the differential distribution of the phytohormone auxin which is regulated by auxin efflux transporters. The objective of our studies is directed towards defining the molecular networks that underlie the perception and transduction of gravitropic growth in response to microgravity and to develop methods to directly visualize molecular components acting in these networks. We have developed advanced imaging techniques and innovative sensors for high-content imaging of cellular processes using the toolbox provided by synthetic biology. We also developed an intrinsic root coordinate system (iRoCS) which enables rapid, standardized parameterization of image data within a single framework and provides insight into dynamic changes in root growth, the distribution of cell divisions in different cell layers and the role of components acting in signalling networks. We have performed ground- and space-bound experiments during the Chinese-German Space Mission (Shenzhou-8) and participated in the German Aerospace Center´s (DLR) and European Space Agency´s (ESA) Microgravity Programmes (International Space Station ISS, Texus, Parabolic Flights). Based on data obtained in different missions we elucidated gene networks underlying the plants’ response to microgravity and their organization. Using wild type and mutants of the model plant Arabidopsis thaliana we explored its phenotypic plasticity to gravitropic reponse. First RNAseq analysis identified a µg-mediated decrease in energy metabolism following an immediate stress response and a major deregulation of central hormone signalling pathways putatively leading to altered root growth.

Item URL in elib:https://elib.dlr.de/102970/
Document Type:Conference or Workshop Item (Speech)
Title:Towards a systems understanding of the gravitropic growth response in plants: lessons from ground and space experiments
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Palme, KlausInstitute of Biology II/Botany, Faculty of Biology, Albert-Ludwigs University of Freiburg, Freiburg, GermanyUNSPECIFIED
Wang, HuiInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Yu, XinInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Andrieux, GeoffroyGerman Cancer Consortium, Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, GermanyUNSPECIFIED
Metzger, PatrickGerman Cancer Consortium, Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, GermanyUNSPECIFIED
Aubry-Hivet, DorotheeInstitute of Biology II/Botany, Faculty of Biology, Albert-Ludwigs University of Freiburg, Freiburg, GermanyUNSPECIFIED
Walsh, SeanInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Pasternak, TarasInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Schmidt, ThorstenInstitute of Computer Science, Chair for Pattern Recognition and Image Processing, Albert-Ludwigs-University Freiburg, Freiburg, GermanyUNSPECIFIED
Ronneberger, OlafInstitute of Computer Science, Chair for Pattern Recognition and Image Processing, Albert-Ludwigs-University Freiburg, Freiburg, GermanyUNSPECIFIED
Rigo, GaborInstitute of Plant Biology, Biological Research Center, Szeged, HungaryUNSPECIFIED
Cséplö, ÁgnesInstitute of Plant Biology, Biological Research Center, Szeged, HungaryUNSPECIFIED
Tietz, OlafInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Zurbriggen, Matias D.Centre for Biological Signalling Studies (BIOSS), Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Dovzhenko, AlexanderInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Boerries, MelanieGerman Cancer Consortium, Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, GermanyUNSPECIFIED
Busch, HaukeGerman Cancer Consortium, Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg, Freiburg, GermanyUNSPECIFIED
Li, ChuanyouInstitute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, ChinaUNSPECIFIED
Hemmersbach, RuthGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Gravitational Biology, Cologne, GermanyUNSPECIFIED
Li, XugangInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Ditengou, FranckInstitute of Biology II/Molecular Plant Physiology, Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, GermanyUNSPECIFIED
Date:26 September 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:gravitropism, Arabidopsis thaliana, transcriptome, gravitome, network, imaging
Event Title:The 6th China-Germany Workshop on Microgravity and Space Life Sciences
Event Location:Hangzhou, China
Event Type:international Conference
Event Dates:26.-28. Sept. 2015
Organizer:Chinese Academy of Sciences, Chinese National Space Administration, German Aerospace Center (DLR), National Microgravity Laboratory
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Biowissenschaftliche Nutzerunterstützung
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Biomedical Research
Deposited By: Duwe, Helmut
Deposited On:11 Feb 2016 09:02
Last Modified:10 May 2016 23:44

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.