Waterlogging Signalling and Tolerance in Plants

Part 1: Whole-plant regulation

Oxygen Transport in Waterlogged Plants
Lars Wegner

1.1 Introduction
1.2 O2 transport in plants: Some basic physics, and modeling of O2 diffusion
1.3 A survey of methods to study O2 transport and related parameters in higher plants
1.4 Anatomical adaptations to flooding stress: Barriers to radial oxygen loss
1.5 Anatomical adaptations to flooding stress: Formation of aerenchyma
1.6 Mechanisms of O2 transport in plants
1.7 O2 transport in plants: Ecological implications
1.8 Open questions and directions of further research
1.9 Acknowledgements
1.10 Literature cited

Waterlogging and Plant Nutrient Uptake
J. Theo M. Elzenga & Hans van Veen

2.1 Abstract
2.2 Introduction
2.3 Effects of hypoxia on nutrient uptake
2.3.1 Effects on root elongation and nutrient uptake capacity
2.3.2 Waterlogging effects on nutrient availability
2.3.3 Plant responses to waterlogging increasing uptake surface
2.3.4 Waterlogging decreases nutrient bulk flow
2.3.5 Changes in nutrient uptake kinetics
2.4 Summary and concluding remarks

Strategies for Adaptation to Waterlogging and Hypoxia in Nitrogen Fixing Nodules of Legumes
Daniel M. Roberts, Won Gyu Choi and Jin Ha Hwang

Abstract
3.1 Introduction: The Oxygen Diffusion Barrier in Nodules
3.1.1 Nodule morphology and the gas diffusion barrier
3.1.2 Modulation of the gas diffusion barrier
3.1.3 Control of the gas diffusion barrier in response to sub-ambient O2 and flooding 3.1.4 Mechanism of regulation of the gas diffusion barrier in response to pO2
3.2 Developmental and morphological adaptations of nitrogen-fixing nodules to low oxygen stress
3.2.1 Secondary Aerenchyma Formation
3.2.2 The Inner Cortex and Infected Zone
3.2.3 Influence of adaptive changes on nitrogen fixation under altered rhizosphere pO2 conditions
3.3 Strategies of Adaptation: Flood-tolerant legumes and oxygen diffusion
3.3.1 Tropical wetland legumes
3.3.1.1 Nodulation of submerged stems and roots:

Stefano Mancuso, Professor an der Universität Florenz, leitet das Laboratorio Internazionale di Neurobiologia Vegetale und ist Gründungsmitglied der International Society for Plant Signaling and Behavior. Mit über 250 wissenschaftlichen Publikationen gilt er international als der Spezialist zum Thema. Er sprach 2010 auf der TED-Konferenz, nahm mit Experimenten am europäischen Space Shuttle-Programm teil und stellt auf der EXPO 2015 in Mailand ein neuartiges Pflanzenkultivierungsprojekt vor.