Abiotic stress responses in plants: roles of calmodulin-regulated proteins.
TLDR
The results obtained from contemporary studies are consistent with the proposed role of CaM as an integrator of different stress signaling pathways, which allows plants to maintain homeostasis between different cellular processes.Abstract:
Intracellular changes in Ca2+, one of the important secondary messenger molecules, in response to different biotic and abiotic stimuli are detected by various sensor proteins in the plant cell. Calmodulin (CaM), one of the most extensively studied Ca2+-sensing proteins, is involved in the transduction of signals. Following interaction with Ca2+, the Ca2+-bound CaM (Ca2+-CaM) undergoes conformational change and regulates the activities of a diverse range of proteins. Several of the CaM-binding proteins are also implicated in stress response of plants, indicating that CaM plays an important role in enabling the plants to adapt to adverse environmental conditions. Stress adaptation in plants is a highly complex and multigenic response. Therefore, identification and characterization of proteins that are modulated by CaM under different abiotic stress conditions is imperative for unraveling the molecular mechanisms responsible for abiotic stress tolerance in plants. Functional characterization has revealed involvement of CaM in the regulation of metal ions uptake, generation of reactive oxygen species and modulation of transcription factors such as CAMTA3, GTL1 and WRKY39. Activities of several kinases and phosphatases are also modulated by CaM, thus providing further versatility to plants in signal transduction and stress responses. The results obtained in contemporary studies are consistent with the proposal that CaM acts as an integrator of several different stress signaling pathways that allow plants to maintain homeostasis through negative and positive regulation of different cellular processes. The present review summarizes the progress made so far in understanding the role of CaM in modulating different stress-regulated proteins and their implications in enhancing the tolerance of plants to abiotic stresses.read more
Citations
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疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
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Phytohormones and polyamines regulate plant stress responses by altering GABA pathway.
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Toxicity and detoxification of heavy metals during plant growth and metabolism
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Calcium-Mediated Abiotic Stress Signaling in Roots
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References
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疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Journal ArticleDOI
Oxidative stress, antioxidants and stress tolerance
TL;DR: Key steps of the signal transduction pathway that senses ROIs in plants have been identified and raise several intriguing questions about the relationships between ROI signaling, ROI stress and the production and scavenging ofROIs in the different cellular compartments.
Journal ArticleDOI
Analysis of the genome sequence of the flowering plant Arabidopsis thaliana.
TL;DR: This is the first complete genome sequence of a plant and provides the foundations for more comprehensive comparison of conserved processes in all eukaryotes, identifying a wide range of plant-specific gene functions and establishing rapid systematic ways to identify genes for crop improvement.
Journal ArticleDOI
Arabidopsis transcription factors: genome-wide comparative analysis among eukaryotes.
José Luis Riechmann,Jacqueline E. Heard,George M. Martin,T. Lynne Reuber,Cai-Zhong Jiang,James S. Keddie,Luc Adam,Omaira Pineda,Oliver J. Ratcliffe,Raymond Samaha,Robert A. Creelman,Marsha Pilgrim,Pierre Broun,James Zhang,D. Ghandehari,Bradley K. Sherman,Guo-Liang Yu +16 more
TL;DR: The completion of the Arabidopsis thaliana genome sequence allows a comparative analysis of transcriptional regulators across the three eukaryotic kingdoms and reveals the evolutionary generation of diversity in the regulation of transcription.
Book
Thermal Adaptation: A Theoretical and Empirical Synthesis
TL;DR: This Discussion focuses on the part of the history of thermal evolution and its role in climate change that has an impact on human well-being.