Ca2+ signaling in plant responses to abiotic stresses. Issue 2 (26th February 2022)

• Record Type: Journal Article
• Authors: Dong, Qiuyan; Wallrad, Lukas; Almutairi, Bader O.; Kudla, Jörg
• Editors: Gong, Zhizhong
• Is Part Of: Journal of integrative plant biology. Volume 64:Issue 2(2022)
• Page Start: 287
• Page End: 300
• Publication Date: 2022-02-26
• Subjects: abiotic stress -- calcium signaling -- nutrient stress -- salt stress; Plants -- Periodicals; Plants -- China -- Periodicals; Electronic journals; 580.5
• DOI: 10.1111/jipb.13228
• Languages: English
• ISSNs: 1672-9072

Abstract

Abstract: Adverse variations of abiotic environmental cues that deviate from an optimal range impose stresses to plants. Abiotic stresses severely impede plant physiology and development. Consequently, such stresses dramatically reduce crop yield and negatively impact on ecosystem stability and composition. Physical components of abiotic stresses can be, for example, suboptimal temperature and osmotic perturbations, while representative chemical facets of abiotic stresses can be toxic ions or suboptimal nutrient availability. The sheer complexity of abiotic stresses causes a multitude of diverse components and mechanisms for their sensing and signal transduction. Ca 2+, as a versatile second messenger, plays multifaceted roles in almost all abiotic stress responses in that, for a certain abiotic stress, Ca 2+ is not only reciprocally connected with its perception, but also multifunctionally ensures subsequent signal transduction. Here, we will focus on salt/osmotic stress and responses to altered nutrient availability as model cases to detail novel insights into the identity of components that link stress perception to Ca 2+ signal formation as well as on new insights into mechanisms of Ca 2+ signal implementation. Finally, we will deduce emerging conceptual consequences of these novel insights and outline arising avenues of future research on the role of Ca 2+ signaling in abiotic stress responses in plants. Abstract : Abiotic stresses hamper plant life thus reducing crop yield and causing ecosystem damage. Stress perception and signaling involve many components and mechanisms. Ca 2+ is important in signal generation and decoding and is connected with stress perception. This review discusses the emerging dual role of Ca 2+ in plant abiotic stress signaling.