Sensing and signalling during plant flooding.
Flooding is a major issue for plant survival in many regions of the world. Soil inundation induces multiple plant physiological dysfunctions, leading to a decline in plant growth and survival capacity. Some of the most important effects of flooding include a reduction in water and nutrient uptake and a decrease in metabolism. Prolonged soil flooding will also ultimately lead to anoxia conditions with profound effects on plant respiratory metabolism. However, it is still unclear which signals and which sensory mechanisms are responsible for triggering the plant response. In contrast, it is now established that flooding responses are typified by enhanced ethylene production, accompanied by a signalling cascade which includes a network of hormones and other common secondary signalling molecules. In recent years, there has been significant progress in the understanding of some of the signalling pathways involved during plant stress responses. Here, we present an overview of recent hypothesises on sensing and signalling during plant flooding.
Dat
James F
JF
Laboratoire de Biologie Environnementale, Université de Franche-Comté-INRA, EA 3184, Place Leclerc, 25030 Besançon cedex, France. james.dat@univ-fcomte.fr
Capelli
Nicolas
N
Folzer
Hélène
H
Bourgeade
Pascale
P
Badot
Pierre-Marie
PM
D000222:Adaptation, Physiological; D004190:Disasters; D000431:Ethanol / Q000378:metabolism; D018521:Plant Physiological Phenomena; D015398:Signal Transduction / Q000502:physiology*; D012987:Soil / Q000032:analysis; D014867:Water / Q000378:metabolism*
D012987:Soil; D014867:Water; D000431:Ethanol