title: Interaction between Calcium and Actin in Guard Cell and Pollen Signaling Networks.
abstract: Calcium (Ca(2+)) plays important roles in plant growth, development, and signal transduction. It is a vital nutrient for plant physical design, such as cell wall and membrane, and also serves as a counter-cation for biochemical, inorganic, and organic anions, and more particularly, its concentration change in cytosol is a ubiquitous second messenger in plant physiological signaling in responses to developmental and environmental stimuli. Actin cytoskeleton is well known for its importance in cellular architecture maintenance and its significance in cytoplasmic streaming and cell division. In plant cell system, the actin dynamics is a process of polymerization and de-polymerization of globular actin and filamentous actin and that acts as an active regulator for calcium signaling by controlling calcium evoked physiological responses. The elucidation of the interaction between calcium and actin dynamics will be helpful for further investigation of plant cell signaling networks at molecular level. This review mainly focuses on the recent advances in understanding the interaction between the two aforementioned signaling components in two well-established model systems of plant, guard cell, and pollen.
authors.affiliation: The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Sciences, Shandong University, Jinan 250100, Shandong, China. donghua7103@sdu.edu.cn.
authors.forename: Dong-Hua
authors.initials: DH
authors.lastname: Chen
authors.affiliation: Biology Department, Penn State University, University Park, PA 16802, USA. bra2@psu.edu.
authors.forename: Biswa R
authors.initials: BR
authors.lastname: Acharya
authors.affiliation: High-Tech Research Center, Shandong Academy of Agricultural Sciences, Key Laboratory of Genetic Improvement, Ecology and Physiology of Crops, Jinan 250100, Shandong, China. wheiliu@163.com.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Sciences, Shandong University, Jinan 250100, Shandong, China. weizhang@sdu.edu.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
keywords: Ca2+ signal; actin; guard cell; ion channel; pollen