Second Messengers: Central Regulators in Plant Abiotic Stress Response

Jain, Muskan; Nagar, Preeti; Goel, Parul; Singh, Anil Kumar; Kumari, Sumita; Mustafiz, Ananda

doi:10.1007/978-981-10-7479-0_2

Cited by 15 publications

(5 citation statements)

References 280 publications

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“…The calmodulin-binding transcriptional activator (CAMTA) family includes various TFs in the bZIP and MYB families. They contain DNA-binding domains and interact with CaMs to regulate the expression of downstream genes affected by stress signals and ABA [ 100 , 101 ]. However, CAMs may also regulate cold-induced gene expression.…”

Section: Dehydrin Gene Expression Regulatory Networkmentioning

confidence: 99%

Plant Dehydrins: Expression, Regulatory Networks, and Protective Roles in Plants Challenged by Abiotic Stress

Sun

Chen

et al. 2021

IJMS

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Dehydrins, also known as Group II late embryogenesis abundant (LEA) proteins, are classic intrinsically disordered proteins, which have high hydrophilicity. A wide range of hostile environmental conditions including low temperature, drought, and high salinity stimulate dehydrin expression. Numerous studies have furnished evidence for the protective role played by dehydrins in plants exposed to abiotic stress. Furthermore, dehydrins play important roles in seed maturation and plant stress tolerance. Hence, dehydrins might also protect plasma membranes and proteins and stabilize DNA conformations. In the present review, we discuss the regulatory networks of dehydrin gene expression including the abscisic acid (ABA), mitogen-activated protein (MAP) kinase cascade, and Ca2+ signaling pathways. Crosstalk among these molecules and pathways may form a complex, diverse regulatory network, which may be implicated in regulating the same dehydrin.

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Section: Dehydrin Gene Expression Regulatory Networkmentioning

confidence: 99%

Plant Dehydrins: Expression, Regulatory Networks, and Protective Roles in Plants Challenged by Abiotic Stress

Sun

Chen

et al. 2021

IJMS

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“…Calcium is not only involved in building the structural material of cells [28] but also acts as a secondary messenger, regulating the process of plants' responses to changes in the external environment [29][30][31]. The most active part of the root system is the milky-white absorbing root, which is the site of important life activities such as root elongation, differentiation of mature tissues, and absorption of water and inorganic salts [32].…”

Section: Effects Of Calcium and Aluminum Treatments On The Root Growt...mentioning

confidence: 99%

Aluminum Supplementation Mediates the Changes in Tea Plant Growth and Metabolism in Response to Calcium Stress

Zhang,

Song,

Fan

et al. 2023

IJMS

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Tea plants are more sensitive to variations in calcium concentration compared to other plants, whereas a moderate aluminum concentration facilitates the growth and development of tea plants. Aluminum and calcium show a competitive interaction with respect to the uptake of elements, consequently exerting physiological effects on plants. To further explore these interactions, in this study, we used the solution culture method to treat tea plants with two calcium concentrations (0.8 mM and 5.6 mM) and three aluminum concentrations (0 mM, 0.4 mM, and 1 mM). We then determined the influence of the combined treatments on root growth and quality compound accumulation in the tissues by a combination of phenotype, gene expression, and metabolite analyses. Moderate aluminum supplementation (0.4 mM) alleviated the inhibition of root growth caused by high calcium stress. High calcium stress significantly inhibited the accumulation of most amino acids (e.g., Glutamic acid, Citulline, and Arginine) and organic acids (e.g., a-ketoglutaric acid) in the roots, stems, and leaves, whereas aluminum deficiency significantly increased most amino acids in the roots and leaves (except Serine, Alanine, and Phenylalanine in the roots and Ser in the leaves), with a more than two-fold increase in Arg and Lysine. High calcium stress also induced the accumulation of secondary metabolites such as epigallocatechin gallate and procyanidin in the roots, whereas aluminum supplementation significantly reduced the contents of flavonol glycosides such as quercetin, rutin, myricitrin, and kaempferitrin, as well as caffeine, regardless of calcium concentration. Aluminum supplementation reversed some of the changes in the contents of leaf metabolites induced by calcium stress (e.g., 4-dihydroquercetin, apigenin C-pentoside, phenethylamine, and caffeine). Overall, calcium stress caused severe growth inhibition and metabolic disorders in tea plants, which could be reversed by aluminum supplementation, particularly in maintaining the root tips and the accumulation of secondary metabolites. These results provide a theoretical basis for improving calcium-aluminum nutrient management to promote tea plant growth and quality.

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“…Second messengers, such as ROS and RNS, as well as Ca 2+ , have been widely discussed to play an important role under adverse growth conditions [114,115]. Since most cellular functions are compromised under hypoxic conditions that lead to cytosolic acidification and the elevation of cytosolic Ca 2+ concentrations, as well as the accumulation of ROS and RNS [22,23], these factors may be considered as signal transducers when O 2 availability is limited.…”

Section: Signaling Events Initiating Plant Hypoxic Responsesmentioning

confidence: 99%

Try or Die: Dynamics of Plant Respiration and How to Survive Low Oxygen Conditions

Jethva

Schmidt

Sauter

et al. 2022

Plants

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Fluctuations in oxygen (O2) availability occur as a result of flooding, which is periodically encountered by terrestrial plants. Plant respiration and mitochondrial energy generation rely on O2 availability. Therefore, decreased O2 concentrations severely affect mitochondrial function. Low O2 concentrations (hypoxia) induce cellular stress due to decreased ATP production, depletion of energy reserves and accumulation of metabolic intermediates. In addition, the transition from low to high O2 in combination with light changes—as experienced during re-oxygenation—leads to the excess formation of reactive oxygen species (ROS). In this review, we will update our current knowledge about the mechanisms enabling plants to adapt to low-O2 environments, and how to survive re-oxygenation. New insights into the role of mitochondrial retrograde signaling, chromatin modification, as well as moonlighting proteins and mitochondrial alternative electron transport pathways (and their contribution to low O2 tolerance and survival of re-oxygenation), are presented.

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Second Messengers: Central Regulators in Plant Abiotic Stress Response

Cited by 15 publications

References 280 publications

Plant Dehydrins: Expression, Regulatory Networks, and Protective Roles in Plants Challenged by Abiotic Stress

Plant Dehydrins: Expression, Regulatory Networks, and Protective Roles in Plants Challenged by Abiotic Stress

Aluminum Supplementation Mediates the Changes in Tea Plant Growth and Metabolism in Response to Calcium Stress

Try or Die: Dynamics of Plant Respiration and How to Survive Low Oxygen Conditions

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