Calcium signaling: decoding mechanism of calcium signatures

Poovaiah, B. W.; Du, Liqun

doi:10.1111/nph.15003

Cited by 26 publications

(11 citation statements)

References 15 publications

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“…It is well documented that microbial signals induce specific Ca 2+ signatures in the root hair [20,21]. For example, the fungal symbiotic microbe (mycorrhizae) triggers a different Ca 2+ signature, as compared to bacterial symbiotic microbe (rhizobacteria) [10,22,23,24]. Similarly, low temperatures also trigger Ca 2+ transients in plants [25,26].…”

Section: Cold Stress-induced Calcium Transientsmentioning

confidence: 99%

Calcium Signaling-Mediated Plant Response to Cold Stress

Yuan

Yang

Poovaiah

2018

IJMS

166

101

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Low temperatures have adverse impacts on plant growth, developmental processes, crop productivity and food quality. It is becoming clear that Ca2+ signaling plays a crucial role in conferring cold tolerance in plants. However, the role of Ca2+ involved in cold stress response needs to be further elucidated. Recent studies have shown how the perception of cold signals regulate Ca2+ channels to induce Ca2+ transients. In addition, studies have shown how Ca2+ signaling and its cross-talk with nitric oxide (NO), reactive oxygen species (ROS) and mitogen-activated protein kinases (MAPKs) signaling pathways ultimately lead to establishing cold tolerance in plants. Ca2+ signaling also plays a key role through Ca2+/calmodulin-mediated Arabidopsis signal responsive 1 (AtSR1/CAMTA3) when temperatures drop rapidly. This review highlights the current status in Ca2+ signaling-mediated cold tolerance in plants.

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Section: Cold Stress-induced Calcium Transientsmentioning

confidence: 99%

Calcium Signaling-Mediated Plant Response to Cold Stress

Yuan

Yang

Poovaiah

2018

IJMS

166

101

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“…Reactive oxygen species, electrical signals and changes in cytosolic Ca 2+ concentrations ([Ca 2+ ]cyt) are thought to form signaling networks supporting both local and systemic plant defense responses 36–38 . Further transmission of Ca signals activates JA, salicylic acid, ethylene and other signal transduction pathways, thereafter inducing plant defense responses 39–42 …”

Section: Introductionmentioning

confidence: 99%

Seed priming with calcium chloride enhances wheat resistance against wheat aphid Schizaphis graminumRondani

Wang

Song

et al. 2021

Pest Management Science

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BACKGROUND Calcium is an essential macronutrient for plant growth. Although it has been shown that exogenous Ca application can increase plant resistance to abiotic stress, little is known about its potential to enhance plant tolerance to biotic stress. Here, we investigated whether pretreatment of wheat (Triticum aestivum L.) seeds with calcium chloride (CaCl2) improves plant resistance against wheat aphid (Schizaphis graminum Rondani). The developmental time, population size, feeding behavior of aphids on plants grown from CaCl2‐ and water‐pretreated seeds, and plant defense responses to aphid attack were investigated. RESULTS Seed pretreatment with CaCl2 extended aphid development time and reduced aphid population size and feeding efficiency. In addition, the pretreatment significantly increased the concentration of Ca2+ in wheat leaves, and upregulated expression levels of TaCaM genes and callose synthase genes (TaGSL2, TaGSL8, TaGSL10, TaGSL12, TaGSL19, TaGSL22 and TaGSL23). Callose concentration in the leaves of plants grown from CaCl2‐pretreated seeds increased significantly upon aphid attack. Further, callose deposition was observed mainly in the phloem. CONCLUSION These results suggest that seed pretreatment with CaCl2 primes the plant response against wheat aphid attack, leading to modulation of callose deposition in the phloem in response to aphid attack. © 2021 Society of Chemical Industry.

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“…The calcium signal hypothesis suggests that the spatio-temporal dynamics of free calcium ions represents an encoded stimulus ( McAinsh and Hetherington, 1998 ). Such calcium signatures can be decoded by the appropriate calcium machinery ( Larsen et al , 2004 ; Hashimoto and Kudla, 2011 ; Miller et al , 2013 ; Lenzoni et al , 2018 ; Poovaiah and Du, 2018 ). Differences in the proteome of cell types, potential cell clusters, and organs will determine how cells receive, transduce, and translate a signal ( Fig.…”

Section: Calcium Signal Decodingmentioning

confidence: 99%

Encoding, transmission, decoding, and specificity of calcium signals in plants

Allan

Morris

Meisrimler

2022

Journal of Experimental Botany

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Calcium acts as a signal and transmits information in all eukaryotes. Encoding machinery consisting of calcium channels, stores, buffers and pumps can generate a variety of calcium transients in response to external stimuli, thus shaping the calcium signature. Mechanisms for the transmission of calcium signals have been described and a large repertoire of calcium binding proteins exist that can decode calcium signatures into specific responses. Whilst straightforward in concept, mysteries remain in exactly how such information processing is biochemically implemented. Novel developments in imaging technology and genetically encoded sensors (such as calcium indicators), in particular for multi-signal detection, are delivering exciting new insights into intra- and intercellular calcium signaling. Here, we review recent advances on characterising the encoding, transmission and decoding mechanisms, with a focus on long distance calcium signaling. We present technological advances and computational frameworks for studying the specificity of calcium signaling, highlighting current gaps in our understanding and suggesting techniques and approaches for unravelling the underlying mechanisms.

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Calcium signaling: decoding mechanism of calcium signatures

Abstract: This article is a Commentary on Lenzoni et al., 217: 1598–1609.

Cited by 26 publications

References 15 publications

Calcium Signaling-Mediated Plant Response to Cold Stress

Calcium Signaling-Mediated Plant Response to Cold Stress

Seed priming with calcium chloride enhances wheat resistance against wheat aphid Schizaphis graminumRondani

Encoding, transmission, decoding, and specificity of calcium signals in plants

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