title: Calcium signaling in plant endosymbiotic organelles: mechanism and role in physiology.
abstract: Recent studies have demonstrated that chloroplasts and mitochondria evoke specific Ca(2+) signals in response to biotic and abiotic stresses in a stress-dependent manner. The identification of Ca(2+) transporters and Ca(2+) signaling molecules in chloroplasts and mitochondria implies that they play roles in controlling not only intra-organellar functions, but also extra-organellar processes such as plant immunity and stress responses. It appears that organellar Ca(2+) signaling might be more important to plant cell functions than previously thought. This review briefly summarizes what is known about the molecular basis of Ca(2+) signaling in plant mitochondria and chloroplasts.
authors.affiliation: Department of Health and Nutrition, Gifu Women's University, 80 Taromaru, Gifu 501-2592, Japan.
authors.forename: Hironari
authors.initials: H
authors.lastname: Nomura
authors.affiliation: Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Sakyo-ku Kyoto 606-8522, Japan shiina@kpu.ac.jp.
authors.forename: Takashi
authors.initials: T
authors.lastname: Shiina
mesh_terms: D020013:Calcium Signaling; D015388:Organelles / Q000378:metabolism*; D059828:Plant Cells / Q000378:metabolism*; D018521:Plant Physiological Phenomena; D010944:Plants; D013559:Symbiosis
keywords: CAS; abiotic stress; biotic stress; calcium signaling; calcium transport; chloroplast; mitochondria.