Calcium signaling in plant-microbe interaction: Difference between revisions
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Calcium ion (Ca<sup>2+</sup>) is an important second messenger involved in many signaling pathways in plants.<ref>[https://academic.oup.com/plcell/article/14/suppl_1/S401/6009910?login=true Sanders et al. “Calcium at the Crossroads of Signaling” 2002. The Plant Cell 14:401–S417.]</ref> The intracellular concentration of Ca<sup>2+</sup> connects the extracellular stimuli, including the signal of microbes, to intracellular and allow the respond in plants. Since Ca<sup>2+</sup> cannot be synthesized or degraded by plant, its concentration in the cytoplasm of a plant cell ([Ca<sup>2+</sup>]<sub>cyt</sub>) is completely dependent on the balance of its entry and efflux process.<ref>[https://www.tandfonline.com/doi/full/10.4161/psb.4.11.9800 Vadassery, J. and Oelmüller, R. “Calcium signaling in pathogenic and beneficial plant microbe interactions” 2009. Plant Signaling & Behavior 4:1024-1027.]</ref> The concentration is regulated tightly by various membrane proteins, such as Ca<sup>2+</sup> permeable channels, transporters, and Ca<sup>2+</sup> pumps.<ref>[https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.13031 Seybold et al. “Ca<sup>2+</sup> signalling in plant immune response: from pattern recognition receptors to Ca2+ decoding mechanisms” 2014. New Phytologist 204: 782-790.]</ref> Different microbe signals trigger distinctive Ca<sup>2+</sup> elevation patterns, referred to as Ca<sup>2+</sup> signature, that can be different from each other from various aspects: amplitude, duration, frequency, spatial distribution, and times of cycle in [Ca<sup>2+</sup>]<sub>cyt</sub> changes. The Ca<sup>2+</sup> signature produced by microbe signal can be decoded by downstream effectors and will result in transcriptional reprogramming of the defense or symbiosis-related genes by the transcription factors, causing different responses by plants.<ref>[https://www.sciencedirect.com/science/article/pii/S1369526617300304#bib0600 Yuan et al. “Calcium signatures and signaling events orchestrate plant–microbe interactions” 2017. Current Opinion in Plant Biology 38:173-183.]</ref><br> | Calcium ion (Ca<sup>2+</sup>) is an important second messenger involved in many signaling pathways in plants.<ref>[https://academic.oup.com/plcell/article/14/suppl_1/S401/6009910?login=true Sanders et al. “Calcium at the Crossroads of Signaling” 2002. The Plant Cell 14:401–S417.]</ref> The intracellular concentration of Ca<sup>2+</sup> connects the extracellular stimuli, including the signal of microbes, to intracellular and allow the respond in plants. Since Ca<sup>2+</sup> cannot be synthesized or degraded by plant, its concentration in the cytoplasm of a plant cell ([Ca<sup>2+</sup>]<sub>cyt</sub>) is completely dependent on the balance of its entry and efflux process.<ref>[https://www.tandfonline.com/doi/full/10.4161/psb.4.11.9800 Vadassery, J. and Oelmüller, R. “Calcium signaling in pathogenic and beneficial plant microbe interactions” 2009. Plant Signaling & Behavior 4:1024-1027.]</ref> The concentration is regulated tightly by various membrane proteins, such as Ca<sup>2+</sup> permeable channels, transporters, and Ca<sup>2+</sup> pumps.<ref>[https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.13031 Seybold et al. “Ca<sup>2+</sup> signalling in plant immune response: from pattern recognition receptors to Ca2+ decoding mechanisms” 2014. New Phytologist 204: 782-790.]</ref> Different microbe signals trigger distinctive Ca<sup>2+</sup> elevation patterns, referred to as Ca<sup>2+</sup> signature, that can be different from each other from various aspects: amplitude, duration, frequency, spatial distribution, and times of cycle in [Ca<sup>2+</sup>]<sub>cyt</sub> changes. The Ca<sup>2+</sup> signature produced by microbe signal can be decoded by downstream effectors and will result in transcriptional reprogramming of the defense or symbiosis-related genes by the transcription factors, causing different responses by plants.<ref>[https://www.sciencedirect.com/science/article/pii/S1369526617300304#bib0600 Yuan et al. “Calcium signatures and signaling events orchestrate plant–microbe interactions” 2017. Current Opinion in Plant Biology 38:173-183.]</ref><br> | ||
== | ==Detection of Microbes== | ||
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== | ==Formation of Calcium Signature== | ||
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==Decoding of Calcium Signature== | |||
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Revision as of 22:03, 27 November 2021
Introduction
Calcium ion (Ca2+) is an important second messenger involved in many signaling pathways in plants.[1] The intracellular concentration of Ca2+ connects the extracellular stimuli, including the signal of microbes, to intracellular and allow the respond in plants. Since Ca2+ cannot be synthesized or degraded by plant, its concentration in the cytoplasm of a plant cell ([Ca2+]cyt) is completely dependent on the balance of its entry and efflux process.[2] The concentration is regulated tightly by various membrane proteins, such as Ca2+ permeable channels, transporters, and Ca2+ pumps.[3] Different microbe signals trigger distinctive Ca2+ elevation patterns, referred to as Ca2+ signature, that can be different from each other from various aspects: amplitude, duration, frequency, spatial distribution, and times of cycle in [Ca2+]cyt changes. The Ca2+ signature produced by microbe signal can be decoded by downstream effectors and will result in transcriptional reprogramming of the defense or symbiosis-related genes by the transcription factors, causing different responses by plants.[4]
Detection of Microbes
Formation of Calcium Signature
Decoding of Calcium Signature
Conclusion
References
- ↑ Sanders et al. “Calcium at the Crossroads of Signaling” 2002. The Plant Cell 14:401–S417.
- ↑ Vadassery, J. and Oelmüller, R. “Calcium signaling in pathogenic and beneficial plant microbe interactions” 2009. Plant Signaling & Behavior 4:1024-1027.
- ↑ Seybold et al. “Ca2+ signalling in plant immune response: from pattern recognition receptors to Ca2+ decoding mechanisms” 2014. New Phytologist 204: 782-790.
- ↑ Yuan et al. “Calcium signatures and signaling events orchestrate plant–microbe interactions” 2017. Current Opinion in Plant Biology 38:173-183.
Edited by Yueqi Song, student of Joan Slonczewski for BIOL 116 Information in Living Systems, 2021, Kenyon College.
