Ca2+ channels and Ca2+ signals involved in abiotic stress responses in plant cells: recent advances

Liu, Jiayu; Niu, Yufan; Zhang, Jingjing; Zhou, Yuqing; Ma, Zheng; Huang, Xuan

doi:10.1007/s11240-017-1350-0

Cited by 38 publications

(20 citation statements)

References 110 publications

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“…Despite this problem, research has shown that plants’ action potentials are associated with an increase of and concentrations and a decrease of and in the cytoplasm, and the same concentrations change conversely in the apoplast. 2 However, although voltage-sensitive channels 55 and voltage-sensitive channels 56 have been identified, for most of the proposed molecular mechanisms, there is no experimental proof that they are involved in action potentials. Studies have only recently confirmed that voltage-gated potassium channels responsible for repolarization exist 57 and that the proton pump AHA1 is implicated in variation potential generation by controlling the membrane potential.…”

Section: Plant Behaviors and The Mechanisms Of Electrical Signalsmentioning

confidence: 99%

“…The action potentials in plants are believed to be produced by fluxes of , and . 130 The existence of voltage-dependent channels has been proven, 55 , 131 but the channels involved in the currents for the depolarization in action potential in plants have not yet been identified. Also, we know that some action potentials have a complex mechanisms in some plants.…”

Section: The Definition Of a Nervous Systemmentioning

confidence: 99%

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Broadening the definition of a nervous system to better understand the evolution of plants and animals

Miguel-Tomé

Llinás

2021

Plant Signaling & Behavior

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Most textbook definitions recognize only animals as having nervous systems. However, for the past couple decades, botanists have been meticulously studying long-distance signaling systems in plants, and some researchers have stated that plants have a simple nervous system. Thus, an academic conflict has emerged between those who defend and those who deny the existence of a nervous system in plants. This article analyses that debate, and we propose an alternative to answering yes or no: broadening the definition of a nervous system to include plants. We claim that a definition broader than the current one, which is based only on a phylogenetic viewpoint, would be helpful in obtaining a deeper understanding of how evolution has driven the features of signal generation, transmission and processing in multicellular beings. Also, we propose two possible definitions and exemplify how broader a definition allows for new viewpoints on the evolution of plants, animals and the nervous system.

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Section: Plant Behaviors and The Mechanisms Of Electrical Signalsmentioning

confidence: 99%

Section: The Definition Of a Nervous Systemmentioning

confidence: 99%

Broadening the definition of a nervous system to better understand the evolution of plants and animals

Miguel-Tomé

Llinás

2021

Plant Signaling & Behavior

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“…Cyclic nucleotide-gated ion channels (CNGCs) are nonselective, ligand-gated cation channels present across eukaryotes (Liu et al, 2018). In plants, CNGCs are found to be involved in diverse processes and their functions are thought to result from their involvement in calcium influx.…”

mentioning

confidence: 99%

CYCLIC NUCLEOTIDE-GATED ION CHANNELs 14 and 16 Promote Tolerance to Heat and Chilling in Rice

Cui

et al. 2020

Plant Physiol.

116

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Calcium signaling has been postulated to be critical for both heat and chilling tolerance in plants, but its molecular mechanisms are not fully understood. Here, we investigated the function of two closely related cyclic nucleotide-gated ion channel (CNGC) proteins, OsCNGC14 and OsCNGC16, in temperature-stress tolerance in rice (Oryza sativa) by examining their loss-of-function mutants generated by genome editing. Under both heat and chilling stress, both the cngc14 and cngc16 mutants displayed reduced survival rates, higher accumulation levels of hydrogen peroxide, and increased cell death. In the cngc16 mutant, the extent to which some genes were induced and repressed in response to heat stress was altered and some Heat Shock factor (HSF) and Heat Shock Protein (HSP) genes were slightly more induced compared to the wild type. Furthermore, the loss of either OsCNGC14 or OsCNGC16 reduced or abolished cytosolic calcium signals induced by either heat or chilling stress. Therefore, OsCNGC14 and OsCNGC16 are required for heat and chilling tolerance and are modulators of calcium signals in response to temperature stress. In addition, loss of their homologs AtCNGC2 and AtCNGC4 in Arabidopsis (Arabidopsis thaliana) also led to compromised tolerance of low temperature. Thus, this study indicates a critical role of CNGC genes in both chilling and heat tolerance in plants, suggesting a potential overlap in calcium signaling in response to high-and low-temperature stress.

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“…The increase in Ca 2+ concentration is similar to the accumulation of ROS, which is one of the basic steps in plants' response to stress signals. Just like other signaling molecules, Ca 2+ is a necessary universal second messenger acting as transduction and regulatory factor in plants, which can produce adaptive responses by Ca 2+ binding proteins that sense rapid Ca 2+ increase and transmit specific signals [ 115 , 116 ]. The reduction effect of H 2 S is related to the promotion of Ca 2+ influx, and H 2 S generated by CBS was 3.5 times when there was Ca 2+ /calmodulin (CaM) more than without them, while that can be inhibited with treating CaM inhibitors [ 117 ].…”

Section: How H 2 S Enhances the Hypoxia Tolerance Of Plants During Waterloggingmentioning

confidence: 99%

Hydrogen Sulfide Enhances Plant Tolerance to Waterlogging Stress

Sun

et al. 2021

Plants

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Hydrogen sulfide (H2S) is considered the third gas signal molecule in recent years. A large number of studies have shown that H2S not only played an important role in animals but also participated in the regulation of plant growth and development and responses to various environmental stresses. Waterlogging, as a kind of abiotic stress, poses a serious threat to land-based waterlogging-sensitive plants, and which H2S plays an indispensable role in response to. In this review, we summarized that H2S improves resistance to waterlogging stress by affecting lateral root development, photosynthetic efficiency, and cell fates. Here, we reviewed the roles of H2S in plant resistance to waterlogging stress, focusing on the mechanism of its promotion to gained hypoxia tolerance. Finally, we raised relevant issues that needed to be addressed.

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Ca2+ channels and Ca2+ signals involved in abiotic stress responses in plant cells: recent advances

Cited by 38 publications

References 110 publications

Broadening the definition of a nervous system to better understand the evolution of plants and animals

Broadening the definition of a nervous system to better understand the evolution of plants and animals

CYCLIC NUCLEOTIDE-GATED ION CHANNELs 14 and 16 Promote Tolerance to Heat and Chilling in Rice

Hydrogen Sulfide Enhances Plant Tolerance to Waterlogging Stress

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