Rhizosphere By Design Quantitative understanding of how root exudates and hairs influence plant-soil interaction www.hutton.ac.uk/ From 1ml Syringe Barrel to Mid Pilmore Cultivation Experiment Rhizosphere Structure Formation Mucilage and Root Exudate Properties mm 1 . 3 . 4 . 5 . Computational Modelling Muhammad Naveed Nico Koebernick Laura Cooper Paul Hallett Glyn Bengough Timothy George Tiina Roose Sam Keyes Keith Daly Ian Sinclair Lawrie Brown Annette Raffan www.scri.ac.uk/ research 2 .
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Rhizosphere By Design Quantitative understanding of how root exudates and hairs influence plant-soil interaction
www.hutton.ac.uk/From 1ml Syringe Barrel to Mid Pilmore Cultivation Experiment
Rhizosphere Structure Formation
Mucilage and Root Exudate
Properties
mm
1.3.
4.
5.
Computational Modelling
Muhammad Naveed
Nico KoebernickLaura Cooper
Paul HallettGlyn Bengough
Timothy GeorgeTiina RooseSam KeyesKeith Daly
Ian SinclairLawrie Brown
Annette Raffan
www.scri.ac.uk/research
2.
Rhizosphere by design: breeding to select root traits that physically manipulate soil
Phase 1: How do exudates influence the root-soil interface
Barley (optic) root exudate
0.0092
0.092
0.92 1.84 4.6 mg g-1
Chia seed exudate
0.0092
0.092
0.92 1.84 4.6 9.2 mg g-1
Phase 1: Near completionPhase 2: Glass house experiments about to start
Which root traits drive rhizosphere structure?
High resolution imaging of root:soil interactions
images courtesy Timothy George
Digital image analysis
250 um
root
Rhizosphere By Design -Imaging rhizosphere structure formation
4
Rhizosphere By Design
Future Work• Incorporate changes to physical properties caused by mucilage and
exudate• Combine soil and root models to estimate water and nutrient uptake