title: ROS as key players in plant stress signalling.
abstract: Reactive oxygen species (ROS) play an integral role as signalling molecules in the regulation of numerous biological processes such as growth, development, and responses to biotic and/or abiotic stimuli in plants. To some extent, various functions of ROS signalling are attributed to differences in the regulatory mechanisms of respiratory burst oxidase homologues (RBOHs) that are involved in a multitude of different signal transduction pathways activated in assorted tissue and cell types under fluctuating environmental conditions. Recent findings revealed that stress responses in plants are mediated by a temporal-spatial coordination between ROS and other signals that rely on production of stress-specific chemicals, compounds, and hormones. In this review we will provide an update of recent findings related to the integration of ROS signals with an array of signalling pathways aimed at regulating different responses in plants. In particular, we will address signals that confer systemic acquired resistance (SAR) or systemic acquired acclimation (SAA) in plants.
authors.affiliation: Department of Biological Sciences, College of Arts and Sciences, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203-5017, USA.
authors.forename: Aaron
authors.initials: A
authors.lastname: Baxter
authors.forename: Ron
authors.initials: R
authors.lastname: Mittler
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Suzuki
mesh_terms: D000064:Acclimatization; D056704:Adaptive Immunity; D057865:Plant Immunity; D018521:Plant Physiological Phenomena; D010944:Plants / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism*; D015398:Signal Transduction; D013312:Stress, Physiological
chemical_list: D017382:Reactive Oxygen Species
keywords: Reactive oxygen species (ROS); respiratory burst oxidase homologue (RBOH); spatial coordination.; stress response; systemic acquired acclimation (SAA); systemic acquired resistance (SAR); temporal–