Plant Hormone Signaling Crosstalks between Biotic and Abiotic Stress Responses

Ku, Yee-Shan; Sintaha, Mariz; Cheung, Ming-Yan; Lam, Hon‐Ming

doi:10.3390/ijms19103206

Cited by 426 publications

(278 citation statements)

References 159 publications

(206 reference statements)

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“…Plants respond to biotic and abiotic stress via crosstalk signals such as ABA, salicylic acid (SA)/jasmonic acid (JA)/ethylene (ET)-mediated defense signaling [149]. The role of ABA in the crosstalk between biotic and abiotic stress is very broad and is discussed in detail by recently published reviews [150,151]. A restraint function of ABA on the systemic acquired resistance pathway of SA induction has also been reported in tobacco [152].…”

Section: Biotic Stress Signaling Integration With the Aba Signaling Pmentioning

confidence: 99%

Integration of Abscisic Acid Signaling with Other Signaling Pathways in Plant Stress Responses and Development

Kumar

Kesawat

Ali

et al. 2019

Plants

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Plants are immobile and, to overcome harsh environmental conditions such as drought, salt, and cold, they have evolved complex signaling pathways. Abscisic acid (ABA), an isoprenoid phytohormone, is a critical signaling mediator that regulates diverse biological processes in various organisms. Significant progress has been made in the determination and characterization of key ABA-mediated molecular factors involved in different stress responses, including stomatal closure and developmental processes, such as seed germination and bud dormancy. Since ABA signaling is a complex signaling network that integrates with other signaling pathways, the dissection of its intricate regulatory network is necessary to understand the function of essential regulatory genes involved in ABA signaling. In the present review, we focus on two aspects of ABA signaling. First, we examine the perception of the stress signal (abiotic and biotic) and the response network of ABA signaling components that transduce the signal to the downstream pathway to respond to stress tolerance, regulation of stomata, and ABA signaling component ubiquitination. Second, ABA signaling in plant development processes, such as lateral root growth regulation, seed germination, and flowering time regulation is investigated. Examining such diverse signal integration dynamics could enhance our understanding of the underlying genetic, biochemical, and molecular mechanisms of ABA signaling networks in plants. 592 2 of 20 and developmental stages, plants were experiencing drought stress [5,[9][10][11][12][13][14][15][16][17]. Therefore, ABA is a misnomer [18], even though it plays a role in leaf senescence and seed dormancy, potentially via osmotic effects [19][20][21]. It has been observed that drought-stressed vegetative tissues of numerous plants accumulate ABA (40-fold induction) within hours of osmotic stress and then it decreases after rehydration. In addition, ABA has been considered a long-distance stress signal between shoots and roots [22]. Therefore, the study of spatiotemporal expression of genes that control ABA metabolism's rate-limiting steps is essential for understanding how plants adapt to stress. Other than its role in adaptation to abiotic stress, ABA has been shown to be a key regulator of pathogen virulence [23][24][25][26][27], which could offer insights into the basis of the ABA-synthesizing ability of numerous bio-and necrotrophic microbes [24,[28][29][30].Gene products acting in the vicinity of the cell wall or at the interface of the plasma membrane/cytoskeleton/cell wall are considered the most likely elements to participate in initial stress perception. For instance, gated aquaporins (plasma membrane intrinsic proteins (PIPs)) and osmo-/ion channels at the cell wall-plasma membrane interface may be implicated in the upstream perception [31][32][33]. The receptor of ABA remained unknown until 2009. Before then, several ABA receptors had been reported [34][35][36][37][38][39][40]; however, further investigations did not substantiate any o...

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Section: Biotic Stress Signaling Integration With the Aba Signaling Pmentioning

confidence: 99%

Integration of Abscisic Acid Signaling with Other Signaling Pathways in Plant Stress Responses and Development

Kumar

Kesawat

Ali

et al. 2019

Plants

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“…Both auxin biosynthesis and transport are involved in the regulation of Arabidopsis root development (Du and Scheres, 2018; Morffy and Strader, 2018; Xu et al , 2017). JA has been long recognized as a stress hormone, and can alter root architecture dramatically, but our knowledge about the underlying mechanisms remains limited (Ku et al , 2018; Wasternack, 2007; Wasternack and Hause, 2013). Previous studies have showed that JA can be induced by a variety of environmental stimuli (Carvalhais et al , 2015; de Ollas et al , 2013; Gundlach et al , 1992; Wasternack, 2007).…”

Section: Discussionmentioning

confidence: 99%

Arabidopsis ERF109 regulates auxin transport-related genes in root development

Cai

Zhao

et al. 2019

Preprint

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The transcription factor ERF109 acts as a crosstalk node between jasmonic acid signaling and auxin biosynthesis by directly regulating YUC2 and ASA1 during lateral root formation in Arabidopsis. However, whether ERF109 regulates the auxin transport remains unclear. Here we report a mechanism of ERF109-mediated auxin transport in root system. Through root transcriptome comparison between erf109, wild type, and 35S:ERF109, we found that the genes PIN2 and PIN4, encoding the major membrane-based efflux carriers of auxin, were enriched in the overexpression line. In the promoters of these auxin transport genes, GCC-box cis elements were found and potentially bound by ERF109. Moreover, PID, encoding a key regulator in polar auxin transport, was found upregulated in 35S:ERF109 and down regulated in erf109. Yeast-one-hybrid and chromatin immunoprecipitation assays showed that ERF109 directly bound to the GCC-box of PIN2, PIN4, and PID. Genetic analyses with double mutants confirmed the function of ERF109 in the regulation of auxin transport in Arabidopsis roots. Taken together, our results show that ERF109 modulates auxin transport by directly regulating PIN2, PIN4 and PID. This ERF109-mediated auxin transport likely works together with ERF109-mediated auxin synthesis to establish auxin maxima for lateral root initiation.

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“…Phytohormones are regarded as master regulators of plant growth, development, and stress responses [61][62][63]. Our KEGG pathway analysis of DEGs revealed that "plant hormone signal transduction" was significantly altered under heat stress ( Figure 4 and Table S6).…”

Section: Influence Of Heat Stress On Plant Hormone Signal Transductionmentioning

confidence: 92%

Transcriptomic Responses of Dove Tree (Davidia involucrata Baill.) to Heat Stress at the Seedling Stage

Liu

Vetukuri

et al. 2019

Forests

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The dove tree (Davidia involucrata Baill.), a tertiary relic species, is adapted to cool climates. With the progression of global warming, high-temperature stress has become the primary environmental factor restricting geographic distribution, ex situ conservation, and landscape application for D. involucrata resources. However, the detailed molecular events underlying D. involucrata responses to heat stress are poorly understood. Here, we conducted RNA-Seq-based gene expression profiling in D. involucrata seedlings during the time course of a 42 • C heat treatment (0, 1, 6, and 12 h). After de novo assembly, we obtained 138,923 unigenes, of which 69,743 were annotated in public databases. Furthermore,19,532,20,497 and 27,716 differentially expressed genes (DEGs) were identified after 1 h (HS1), 6 h (HS6), and 12 h (HS12) of heat treatment in comparison to 0 h (HS0), respectively. Based on a KEGG enrichment analysis, the two pathways "protein processing in endoplasmic reticulum" and "plant hormone signal transduction" are hypothesized to play vital roles during heat response in D. involucrata, and their potential interactions during heat stress are also discussed. In addition, 32 genes encoding putative heat shock transcription factors (Hsfs) were found to be associated with the response of D. involucrata to heat stress. Finally, the expression patterns of eight heat-responsive genes derived from qRT-PCR were in agreement with their transcript level alterations, as determined by a transcriptome analysis. Taken together, our transcriptomic data provide the first comprehensive transcriptional profile affected by heat stress in D. involucrata, which will facilitate further studies on the improvement of heat tolerance in this rare and endangered species.

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Plant Hormone Signaling Crosstalks between Biotic and Abiotic Stress Responses

Cited by 426 publications

References 159 publications

Integration of Abscisic Acid Signaling with Other Signaling Pathways in Plant Stress Responses and Development

Integration of Abscisic Acid Signaling with Other Signaling Pathways in Plant Stress Responses and Development

Arabidopsis ERF109 regulates auxin transport-related genes in root development

Transcriptomic Responses of Dove Tree (Davidia involucrata Baill.) to Heat Stress at the Seedling Stage

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