OsWRKY114 Negatively Regulates Drought Tolerance by Restricting Stomatal Closure in Rice

Song, Giha; Son, Seungmin; Lee, Kyong Sil; Park, Yeo Jin; Suh, Eun Jung; Lee, Soo In; Park, Sang Ryeol

doi:10.3390/plants11151938

Cited by 16 publications

(14 citation statements)

References 29 publications

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“…In rice, the osaba1 mutant provided genetic evidence that increased stomatal conductance can enhance disease resistance to Xoo ( Zhang et al., 2019 ). OsWRKY114 negatively regulated stomatal closure and conferred innate immunity against Xoo by repressing ABA signaling ( Son et al., 2022 ; Song et al., 2022 ). Finally, in Arabidopsis, Lie et al.…”

Section: The Effects Of Humidity On Stomatal Immunitymentioning

confidence: 99%

Climate change impedes plant immunity mechanisms

Son

Park

2022

Front. Plant Sci.

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Rapid climate change caused by human activity is threatening global crop production and food security worldwide. In particular, the emergence of new infectious plant pathogens and the geographical expansion of plant disease incidence result in serious yield losses of major crops annually. Since climate change has accelerated recently and is expected to worsen in the future, we have reached an inflection point where comprehensive preparations to cope with the upcoming crisis can no longer be delayed. Development of new plant breeding technologies including site-directed nucleases offers the opportunity to mitigate the effects of the changing climate. Therefore, understanding the effects of climate change on plant innate immunity and identification of elite genes conferring disease resistance are crucial for the engineering of new crop cultivars and plant improvement strategies. Here, we summarize and discuss the effects of major environmental factors such as temperature, humidity, and carbon dioxide concentration on plant immunity systems. This review provides a strategy for securing crop-based nutrition against severe pathogen attacks in the era of climate change.

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Section: The Effects Of Humidity On Stomatal Immunitymentioning

confidence: 99%

Climate change impedes plant immunity mechanisms

Son

Park

2022

Front. Plant Sci.

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“…In previous our study, the OsWRKY114 directly activates the promoters of PR genes and enhances disease resistance to Xoo [ 41 ]. Furthermore, interestingly, drought tolerance is reduced in OsWRKY114 OX plants [ 42 ]. ABA is the central phytohormone conferring plant tolerance against abiotic stress including drought, whereas it reduces disease resistance to biotrophic pathogens via an antagonistic effect of SA signaling [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

“…However, the WRKY Group III transcription factor OsWRKY45 enhances disease resistance to Xoo but reduces drought tolerance in rice [ 49 , 55 ]. Here, we demonstrate the WRKY Group III transcription factor OsWRKY114 increases resistance to Xoo with dual regulation of PR genes and ABA ( Figure 7 ), while it reduces drought tolerance [ 42 ]. The WRKY transcription factors belonging to Group III are known to be the most highly evolved WRKYs [ 56 ] and they are involved in mainly innate immunity against various pathogens [ 57 , 58 , 59 ].…”

Section: Discussionmentioning

confidence: 99%

“…We previously revealed that OsWRKY114 enhances innate immunity to Xoo through the direct upregulation of pathogenesis-related ( PR ) genes, such as OsPR1a and chitinase [ 41 ]. Moreover, most recently, it was reported that OsWRKY114 decreases the expressions of PYR/PYL/RCAR genes that improve drought tolerance through stomatal closure [ 42 ]. However, the biological function of OsWRKY114 in ABA-pathogenesis has yet to be elucidated.…”

Section: Introductionmentioning

confidence: 99%

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OsWRKY114 Inhibits ABA-Induced Susceptibility to Xanthomonas oryzae pv. oryzae in Rice

Son

Song

et al. 2022

IJMS

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The phytohormone abscisic acid (ABA) regulates various aspects of plant growth, development, and stress responses. ABA suppresses innate immunity to Xanthomonas oryzae pv. oryzae (Xoo) in rice (Oryza sativa), but the identity of the underlying regulator is unknown. In this study, we revealed that OsWRKY114 is involved in the ABA response during Xoo infection. ABA-induced susceptibility to Xoo was reduced in OsWRKY114-overexpressing rice plants. OsWRKY114 attenuated the negative effect of ABA on salicylic acid-dependent immunity. Furthermore, OsWRKY114 decreased the transcript levels of ABA-associated genes involved in ABA response and biosynthesis. Moreover, the endogenous ABA level was lower in OsWRKY114-overexpressing plants than in the wild-type plants after Xoo inoculation. Taken together, our results suggest that OsWRKY114 is a negative regulator of ABA that confers susceptibility to Xoo in rice.

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“…Plants show the most prominent response through stomatal regulations against climatic variability, particularly drought ( Song et al., 2022 ). Both abaxial (lower surface of leaf) and adaxial (upper surface of leaf) stomata are important gateways for the exchange of gases ( Wankmüller and Carminati, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Characterizing stomatal attributes and photosynthetic induction in relation to biochemical changes in Coriandrum sativum L. by foliar-applied zinc oxide nanoparticles under drought conditions

Ahmed

Khan

Abbasi³

et al. 2023

Front. Plant Sci.

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Abiotic stress, particularly drought, will remain an alarming challenge for sustainable agriculture. New approaches have been opted, such as nanoparticles (NPs), to reduce the negative impact of drought stress and lessen the use of synthetic fertilizers and pesticides that are an inevitable problem these days. The application of zinc oxide nanoparticles (ZnO NPs) has been recognized as an effective strategy to enhance plant growth and crop production during abiotic stress. The aim of the current study was to investigate the role of ZnO NPs in drought stress management of drought-susceptible Coriandrum sativum L. (C. sativum) in two consecutive seasons. Drought regimes (moderate drought regime—MDR and intensive drought regime—IDR) were developed based on replenishment method with respect to 50% field capacity of fully irrigated (control) plants. The results showed that foliar application of 100 ppm ZnO NPs improved the net photosynthesis (Pn), stomatal conductance (C), and transpiration rate (E) and boosted up the photosynthetic capacity associated with photosynthetic active radiation in MDR. Similarly, 48% to 30% improvement of chlorophyll b content was observed in MDR and onefold to 41% in IDR during both seasons in ZnO NP-supplemented plants. The amount of abscisic acid in leaves showed a decreasing trend in MDR and IDR in the first season (40% and 30%) and the second season (49% and 33%) compared with untreated ZnO NP plants. The ZnO NP-treated plants showed an increment in total soluble sugars, total phenolic content, and total flavonoid content in both drought regimes, whereas the abaxial surface showed high stomatal density and stomatal index than the adaxial surface in foliar-supplied NP plants. Furthermore, ZnO NPs improve the magnitude of stomata ultrastructures like stomatal length, stomatal width, and pore length for better adaptation against drought. Principal component analysis revealed the efficacy of ZnO NPs in inducing drought tolerance in moderate and intensive stress regimes. These results suggest that 100 ppm ZnO NPs can be used to ameliorate drought tolerance in C. sativum plants.

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OsWRKY114 Negatively Regulates Drought Tolerance by Restricting Stomatal Closure in Rice

Cited by 16 publications

References 29 publications

Climate change impedes plant immunity mechanisms

Climate change impedes plant immunity mechanisms

OsWRKY114 Inhibits ABA-Induced Susceptibility to Xanthomonas oryzae pv. oryzae in Rice

Characterizing stomatal attributes and photosynthetic induction in relation to biochemical changes in Coriandrum sativum L. by foliar-applied zinc oxide nanoparticles under drought conditions

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