Chloroplasts Use Calcium Signals to Call for Help under Heat Stress

Teige, Markus

doi:10.1093/pcp/pcz039

Cited by 4 publications

(2 citation statements)

References 10 publications

(9 reference statements)

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“…CAMTAs itself is a group of transcription factors (TFs) that adjust plants when subject to cold or low stress in a Ca 2+ dependent manner. There is a significant amount of evidence that suggests Ca 2+ mediated signaling and tune CAMTAs, which are involved in the transmission of stress cues, such as light [ 40 , 41 ], temperature [ 42 ], salt [ 43 ], cold [ 44 ], oxidative signals [ 45 ], reactive oxygen species (ROS) [ 46 ], ET as a hormone signals [ 47 ], abscisic acid (ABA) [ 48 ], gibberellins (GA) [ 49 ], and auxins (IAA) [ 50 ], play a crucial part in plants under cold/low temperatures ( Table 1 ). According to Galon et al (2010) AtCAMTA1-3 were negative regulators of auxin that linked to red light and high light responses, meanwhile AtCAMTA4-6 were considered to as positive integrators of auxin signaling and homeostasis [ 51 ].…”

Section: Role Of Calmodulin Binding Transcription Activator In Plantsmentioning

confidence: 99%

The Role of Calmodulin Binding Transcription Activator in Plants under Different Stressors: Physiological, Biochemical, Molecular Mechanisms of Camellia sinensis and Its Current Progress of CAMTAs

2022

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Low temperatures have a negative effect on plant development. Plants that are exposed to cold temperatures undergo a cascade of physiological, biochemical, and molecular changes that activate several genes, transcription factors, and regulatory pathways. In this review, the physiological, biochemical, and molecular mechanisms of Camellia sinensis have been discussed. Calmodulin binding transcription activator (CAMTAs) by molecular means including transcription is one of the novel genes for plants’ adaptation to different abiotic stresses, including low temperatures. Therefore, the role of CAMTAs in different plants has been discussed. The number of CAMTAs genes discussed here are playing a significant role in plants’ adaptation to abiotic stress. The illustrated diagrams representing the mode of action of calcium (Ca2+) with CAMTAs have also been discussed. In short, Ca2+ channels or Ca2+ pumps trigger and induce the Ca2+ signatures in plant cells during abiotic stressors, including low temperatures. Ca2+ signatures act with CAMTAs in plant cells and are ultimately decoded by Ca2+sensors. To the best of our knowledge, this is the first review reporting CAMAT’s current progress and potential role in C. sinensis, and this study opens a new road for researchers adapting tea plants to abiotic stress.

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Section: Role Of Calmodulin Binding Transcription Activator In Plantsmentioning

confidence: 99%

The Role of Calmodulin Binding Transcription Activator in Plants under Different Stressors: Physiological, Biochemical, Molecular Mechanisms of Camellia sinensis and Its Current Progress of CAMTAs

2022

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“…Much evidence indicates that Ca 2+ -mediated signaling is implicated in the relay of stress signals such as light ( Kim et al, 2003 ; Liang et al, 2009 ; Hochmal et al, 2015 ; Hou et al, 2019 ), temperature ( Teige, 2019 ), salt ( Rahman A. et al, 2016 ; Manishankar et al, 2018 ; Seifikalhor et al, 2019 ), cold ( Shi et al, 2014 ; Yuan et al, 2018b ), and gravity ( Kordyum, 2003 ; Toyota et al, 2008 ; Salmi et al, 2011 ); oxidative signals such as pathogen attack ( Kiep et al, 2015 ; Aldon et al, 2018 ; Tian et al, 2019 ) and reactive oxygen species ( Mori and Schroeder, 2004 ; Monshausen et al, 2009 ; Kurusu et al, 2015 ); and hormone signals such as ethylene ( Li et al, 2018 ; Zhu et al, 2018 ), abscisic acid (ABA) ( Edel and Kudla, 2016 ; Chen et al, 2017 ; Yuenyong et al, 2018 ), gibberellins ( Abbasi et al, 2004 ; Nakata et al, 2009 ; Li et al, 2013 ), and auxins ( Vanneste and Friml, 2013 ; Hazak et al, 2019 ). In plants, oodles of Ca 2+ -binding proteins function as Ca 2+ sensors decoding complex Ca 2+ signatures ( Kudla et al, 2018 ).…”

Section: Calcium: a Second Messenger And Its Interaction With Calmodumentioning

confidence: 99%

Ca2+/Calmodulin Complex Triggers CAMTA Transcriptional Machinery Under Stress in Plants: Signaling Cascade and Molecular Regulation

Iqbal

Singh

et al. 2020

Front. Plant Sci.

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Calcium (Ca2+) ion is a critical ubiquitous intracellular second messenger, acting as a lead currency for several distinct signal transduction pathways. Transient perturbations in free cytosolic Ca2+ ([Ca2+]cyt) concentrations are indispensable for the translation of signals into adaptive biological responses. The transient increase in [Ca2+]cyt levels is sensed by an array of Ca2+ sensor relay proteins such as calmodulin (CaM), eventually leading to conformational changes and activation of CaM. CaM, in a Ca2+-dependent manner, regulates several transcription factors (TFs) that are implicated in various molecular, physiological, and biochemical functions in cells. CAMTA (calmodulin-binding transcription activator) is one such member of the Ca2+-loaded CaM-dependent family of TFs. The present review focuses on Ca2+ as a second messenger, its interaction with CaM, and Ca2+/CaM-mediated CAMTA transcriptional regulation in plants. The review recapitulates the molecular and physiological functions of CAMTA in model plants and various crops, confirming its probable involvement in stress signaling pathways and overall plant development. Studying Ca2+/CaM-mediated CAMTA TF will help in answering key questions concerning signaling cascades and molecular regulation under stress conditions and plant growth, thus improving our knowledge for crop improvement.

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Crosstalk between abscisic acid and nitric oxide under heat stress: exploring new vantage points

Iqbal¹,

Umar²,

Khan

et al. 2021

Plant Cell Rep

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Chloroplasts Use Calcium Signals to Call for Help under Heat Stress

Cited by 4 publications

References 10 publications

The Role of Calmodulin Binding Transcription Activator in Plants under Different Stressors: Physiological, Biochemical, Molecular Mechanisms of Camellia sinensis and Its Current Progress of CAMTAs

The Role of Calmodulin Binding Transcription Activator in Plants under Different Stressors: Physiological, Biochemical, Molecular Mechanisms of Camellia sinensis and Its Current Progress of CAMTAs

Ca2+/Calmodulin Complex Triggers CAMTA Transcriptional Machinery Under Stress in Plants: Signaling Cascade and Molecular Regulation

Crosstalk between abscisic acid and nitric oxide under heat stress: exploring new vantage points

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