title: ROS signalling in a destabilised world: A molecular understanding of climate change.
abstract: Climate change results in increased intensity and frequency of extreme abiotic and biotic stress events. In plants, reactive oxygen species (ROS) accumulate in proportion to the level of stress and are major signalling and regulatory metabolites coordinating growth, defence, acclimation and cell death. Our knowledge of ROS homeostasis, sensing, and signalling is therefore key to understanding the impacts of climate change at the molecular level. Current research is uncovering new insights into temporal-spatial, cell-to-cell and systemic ROS signalling pathways, particularly how these affect plant growth, defence, and more recently acclimation mechanisms behind stress priming and long term stress memory. Understanding the stabilising and destabilising factors of ROS homeostasis and signalling in plants exposed to extreme and fluctuating stress will concomitantly reveal how to address future climate change challenges in global food security and biodiversity management.
authors.affiliation: Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, University of Helsinki, 00014 Helsinki, Finland. Electronic address: melanie.carmody@helsinki.fi.
authors.forename: Melanie
authors.initials: M
authors.lastname: Carmody
authors.affiliation: Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, University of Helsinki, 00014 Helsinki, Finland. Electronic address: cezary.waszczak@helsinki.fi.
authors.forename: Cezary
authors.initials: C
authors.lastname: Waszczak
authors.affiliation: Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, University of Helsinki, 00014 Helsinki, Finland. Electronic address: niina.idanheimo@helsinki.fi.
authors.forename: Niina
authors.initials: N
authors.lastname: Idänheimo
authors.affiliation: Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, University of Helsinki, 00014 Helsinki, Finland. Electronic address: timo.saarinen@helsinki.fi.
authors.forename: Timo
authors.initials: T
authors.lastname: Saarinen
authors.affiliation: Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, University of Helsinki, 00014 Helsinki, Finland; Distinguished Scientist Fellowship Program, College of Science, King Saud University, Riyadh, Saudi Arabia. Electronic address: jaakko.kangasjarvi@helsinki.fi.
authors.forename: Jaakko
authors.initials: J
authors.lastname: Kangasjärvi
mesh_terms: D000064:Acclimatization; D057231:Climate Change; D017382:Reactive Oxygen Species / Q000378:metabolism*; D015398:Signal Transduction; D013312:Stress, Physiological; D013997:Time Factors
chemical_list: D017382:Reactive Oxygen Species
keywords: Acclimation; Cell death; Climate change; Environmental stress; Reactive oxygen species; Stress memory