Plant Hormone-Mediated Regulation of Heat Tolerance in Response to Global Climate Change

Li, Ning; Euring, Dejuan; Yung, Joon; Zeng, Lin; Lu, Meng-Zhu; Huang, Lijun; Kim, Woe Yeon

doi:10.3389/fpls.2020.627969

Cited by 173 publications

(137 citation statements)

References 106 publications

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“…A series of physiological and ecological changes occur in plants due to high temperatures, affecting their growth and development [147]. Heat stress can result in a serious decline in agricultural economic yield due to adverse effects on crop physiology, including cell membrane damage, enzyme inactivation, inhibition of photosynthesis, and enhanced respiration [148,149].…”

Section: Heat Stressmentioning

confidence: 99%

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Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses

Wang

Mostafa

Zeng

et al. 2021

IJMS

238

108

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As sessile organisms, plants must tolerate various environmental stresses. Plant hormones play vital roles in plant responses to biotic and abiotic stresses. Among these hormones, jasmonic acid (JA) and its precursors and derivatives (jasmonates, JAs) play important roles in the mediation of plant responses and defenses to biotic and abiotic stresses and have received extensive research attention. Although some reviews of JAs are available, this review focuses on JAs in the regulation of plant stress responses, as well as JA synthesis, metabolism, and signaling pathways. We summarize recent progress in clarifying the functions and mechanisms of JAs in plant responses to abiotic stresses (drought, cold, salt, heat, and heavy metal toxicity) and biotic stresses (pathogen, insect, and herbivore). Meanwhile, the crosstalk of JA with various other plant hormones regulates the balance between plant growth and defense. Therefore, we review the crosstalk of JAs with other phytohormones, including auxin, gibberellic acid, salicylic acid, brassinosteroid, ethylene, and abscisic acid. Finally, we discuss current issues and future opportunities in research into JAs in plant stress responses.

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Section: Heat Stressmentioning

confidence: 99%

“…However, the mechanisms underlying heat response pathway interactions with JA are rarely explored [155]. Several studies have suggested that JA might regulate plant heat stress responses through a subset of the WRKY superfamily that is induced by JA [149,156,157].…”

Section: Heat Stressmentioning

confidence: 99%

Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses

Wang

Mostafa

Zeng

et al. 2021

IJMS

238

108

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“…3 D). Considering V14 might act via phytohormone-mediated thermosensory pathways [ 48 , 49 ], we examined the response of v14 seedlings to various phytohormone treatments (Additional file 8 ). However, none of such treatments could restore the albinism observed at 25 °C, suggesting that V14 is irresponsive to phytohormones.…”

Section: Discussionmentioning

confidence: 99%

A rice mTERF protein V14 sustains photosynthesis establishment and temperature acclimation in early seedling leaves

et al. 2021

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Background Plant mitochondrial transcription termination factor (mTERF) family members play important roles in development and stress tolerance through regulation of organellar gene expression. However, their molecular functions have yet to be clearly defined. Results Here an mTERF gene V14 was identified by fine mapping using a conditional albino mutant v14 that displayed albinism only in the first two true leaves, which was confirmed by transgenic complementation tests. Subcellular localization and real-time PCR analyses indicated that V14 encodes a chloroplastic protein ubiquitously expressed in leaves while spiking in the second true leaf. Chloroplastic gene expression profiling in the pale leaves of v14 through real-time PCR and Northern blotting analyses showed abnormal accumulation of the unprocessed transcripts covering the rpoB-rpoC1 and/or rpoC1-rpoC2 intercistronic regions accompanied by reduced abundance of the mature rpoC1 and rpoC2 transcripts, which encode two core subunits of the plastid-encoded plastid RNA polymerase (PEP). Subsequent immunoblotting analyses confirmed the reduced accumulation of RpoC1 and RpoC2. A light-inducible photosynthetic gene psbD was also found down-regulated at both the mRNA and protein levels. Interestingly, such stage-specific aberrant posttranscriptional regulation and psbD expression can be reversed by high temperatures (30 ~ 35 °C), although V14 expression lacks thermo-sensitivity. Meanwhile, three V14 homologous genes were found heat-inducible with similar temporal expression patterns, implicating their possible functional redundancy to V14. Conclusions These data revealed a critical role of V14 in chloroplast development, which impacts, in a stage-specific and thermo-sensitive way, the appropriate processing of rpoB-rpoC1-rpoC2 precursors and the expression of certain photosynthetic proteins. Our findings thus expand the knowledge of the molecular functions of rice mTERFs and suggest the contributions of plant mTERFs to photosynthesis establishment and temperature acclimation.

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“…We observed an increased protein metabolism in these organs. It is believed that the stress response is transitory and ensures the transition of the plant from normal to stressful metabolism by blocking non-essential metabolic pathways and triggering protective mechanisms, especially shock response systems (Waters & Vierling, 2020;Li et al, 2021). The increase of protein content in roots and rhizomes may be a consequence of their enzymatic adaptation and compaction of membrane structures in order to protect cells against the damaging factor.…”

Section: Discussionmentioning

confidence: 99%

Influence of crude oil pollution on the content and electrophoretic spectrum of proteins in Carex hirta plants at the initial stages of vegetative development

Bunio

Tsvilynyuk

2021

Regul. Mech. Biosyst.

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The role of proteins in the general adaptive response of Carex hirta plants to soil pollution by crude oil has been studied. It was established that a possible element of the process of adaptation of C. hirta plants to combined stress – conditions of soil polluted by crude oil – may be the synthesis of stress proteins – high molecular weight of more than 60 kD and low molecular weight, not exceeding 22–45 kD. The synthesis of all 5 HSP families was detected in the leaves and rhizomes, and only sHSP (starting from Mr 32 kD), Hsp 60 and Hsp 100 proteins were synthesized in the roots under the influence of crude oil pollution. The development of C. hirta adaptation syndrome under the influence of crude oil pollution of the soil was promoted by enhanced synthesis of proteins with Mr 85, 77, 64, 60 and 27 kD in the leaves, 118 and 41 kD in the rhizomes and proteins with Mr 105, 53, 50 and 43 kD in the roots of the plants. The decrease in the amount of proteins with Mr 91, 45, 28 kD in the leaves, proteins with Mr 85, 76 and 23 kD in rhizomes and proteins with Mr 64 and 39 in the roots of C. hirta plants under conditions of crude oil polluted soil could be a consequence of inhibition of synthesis or degradation of protein molecules providing the required level of low molecular weight protective compounds in cells. The root system and rhizomes of C. hirta plants undergo a greater crude oil load, which leads to increased protein synthesis in these organs and decreased in the leaves, correspondingly. However, a decrease in protein content in the leaves may indicate their outflow in the roots and rhizomes. Сrude oil contaminated soil as a polycomponent stressor accelerated the aging of leaves of C. hirta plants, which could be caused by increased synthesis of ABA. ABA in its turn induced the synthesis of leaf-specific protein with Mr 27 kD. These proteins bind significant amounts of water with their hydrate shells maintaining the high water holding capacity of the cytoplasm under drought conditions. ABA inhibits the mRNA synthesis and their corresponding proteins, which are characteristic under normal conditions, and induces the expression of genes and, consequently, the synthesis of specific proteins including 27 kD protein. By stimulating the expression of individual genes and the synthesis of new polypeptides, ABA promotes the formation of protective reactions and increases the resistance of plants to crude oil pollution.

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Plant Hormone-Mediated Regulation of Heat Tolerance in Response to Global Climate Change

Cited by 173 publications

References 106 publications

Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses

Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses

A rice mTERF protein V14 sustains photosynthesis establishment and temperature acclimation in early seedling leaves

Influence of crude oil pollution on the content and electrophoretic spectrum of proteins in Carex hirta plants at the initial stages of vegetative development

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