High-temperature adult-plant resistance to stripe rust in facultative winter wheat

Akın, Beyhan; Chen, Xian Ming; Моргунов, А. И.; Zencirci, Nüsret; Wan, Anmin; Wang, Meinan

doi:10.1071/cp16073

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…Wheat ( Triticum aestivum ) stripe rust ( Puccinia striiformis f. sp. tritici ; hereafter Pst ) is the most devastating pathogen of all the wheat rusts, impacting global production with estimated annual losses of $979 million (Beddow et al ., ; Akin et al ., ). Indeed, in recent years, the spread of the pathogen, coupled with an increase in the total planting area of wheat, has resulted in Pst becoming the most threatening of the cereal pathogens (Milus et al ., ; Hovmøller et al ., ; Jin et al ., ; Zhao et al ., ).…”

Section: Introductionmentioning

confidence: 99%

TaADF4, an actin‐depolymerizing factor from wheat, is required for resistance to the stripe rust pathogen Puccinia striiformis f. sp. tritici

et al. 2017

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Actin filament assembly in plants is a dynamic process, requiring the activity of more than 75 actin-binding proteins. Central to the regulation of filament assembly and stability is the activity of a conserved family of actin-depolymerizing factors (ADFs), whose primarily function is to regulate the severing and depolymerization of actin filaments. In recent years, the activity of ADF proteins has been linked to a variety of cellular processes, including those associated with response to stress. Herein, a wheat ADF gene, TaADF4, was identified and characterized. TaADF4 encodes a 139-amino-acid protein containing five F-actin-binding sites and two G-actin-binding sites, and interacts with wheat (Triticum aestivum) Actin1 (TaACT1), in planta. Following treatment of wheat, separately, with jasmonic acid, abscisic acid or with the avirulent race, CYR23, of the stripe rust pathogen Puccinia striiformis f. sp. tritici, we observed a rapid induction in accumulation of TaADF4 mRNA. Interestingly, accumulation of TaADF4 mRNA was diminished in response to inoculation with a virulent race, CYR31. Silencing of TaADF4 resulted in enhanced susceptibility to CYR23, demonstrating a role for TaADF4 in defense signaling. Using a pharmacological-based approach, coupled with an analysis of host response to pathogen infection, we observed that treatment of plants with the actin-modifying agent latrunculin B enhanced resistance to CYR23, including increased production of reactive oxygen species and enhancement of localized hypersensitive cell death. Taken together, these data support the hypothesis that TaADF4 positively modulates plant immunity in wheat via the modulation of actin cytoskeletal organization.

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Section: Introductionmentioning

confidence: 99%

TaADF4, an actin‐depolymerizing factor from wheat, is required for resistance to the stripe rust pathogen Puccinia striiformis f. sp. tritici

et al. 2017

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“…Cooperative studies with Washington State University and USDA examined genetics of adult plant resistance to yellow rust in 100 IWWIP genotypes [5] . Gene Yr18 contributing to adult plant resistance was found in 44% of the entries studied.…”

Section: Research Highlightsmentioning

confidence: 99%

International Winter Wheat Improvement Program: history, activities, impact and future

Morgounov¹,

Özdemir²,

Keser³

et al. 2019

Front. Agr. Sci. Eng.

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International Winter Wheat Improvement Program (IWWIP) was established in 1986 between the Government of Turkey and CIMMYT with three main objectives: (1) develop winter/facultative germplasm for Central and West Asia, (2) facilitate global winter wheat germplasm exchange, and (3) training wheat scientists. ICARDA joined the program in 1991 making it a threeway partnership that continues to work effectively. The germplasm developed by IWWIP as well as the winter wheat cultivars and lines received from global cooperators are assembled into international nurseries. These nurseries are offered annually to public and private entities (IWWIP website) and distributed to more than 100 cooperators in all continents. IWWIP impact has primarily been in new winter wheat cultivars combining broad adaptation, high yield potential, drought tolerance and disease resistance. A total of 93 IWWIP cultivars have been released in 11 countries occupying annually an estimated 2.5-3.0 Mha. IWWIP cooperation with researchers in Turkey, Central and West Asia and several US universities has resulted in a number of publications reviewed in this paper. Important IWWIP impacts include national inventories of wheat landraces in Turkey, Tajikistan and Uzbekistan, their collection, characterization, evaluation and utilization.

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“…In wheat, high‐temperature seedling‐plant (HTSP) and high‐temperature adult‐plant (HTAP) resistance to Pst are non‐race‐specific and durable (Chen, 2013; Shang, 1998). HTAP resistance has been successfully used for controlling stripe rust in the United States and other countries (Akin et al., 2016; Chen, 2013; Line & Chen, 1995; Liu et al., 2019; Liu, Wang, et al., 2018). Up to now, 11 permanently named Yr genes and many quantitative trait loci conferring HTAP resistance have been identified, which cause susceptibility to stripe rust at the seedling stage but result in resistance at the adult‐plant stage under high temperatures (Chen, 2013, 2020; Liu et al., 2019; Liu, Wang, et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

A Puccinia striiformis f. sp. tritici effector inhibits high‐temperature seedling‐plant resistance in wheat

Zhang

et al. 2022

The Plant Journal

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Resistance to Pseudomonas syringae pv. maculicola 1 (RPM1)-induced protein kinase (RIPK) in Arabidopsis belongs to the receptor-like cytoplasmic kinase (RLCK) family and plays a vital role in immunity. However, the role of RLCKs in the high-temperature seedling-plant (HTSP) resistance of wheat (Triticum aestivum) to Puccinia striiformis f. sp. tritici (Pst), the stripe rust pathogen, remains unclear. Here, we identified a homologous gene of RIPK in wheat, namely TaRIPK. Expression of TaRIPK was induced by Pst inoculation and high temperatures. Silencing of TaRIPK reduced the expression level of TaRPM1, resulting in weaker HTSP resistance. Moreover, TaRIPK interacts with and phosphorylates papain-like cysteine protease 1 (TaPLCP1). Meanwhile, we found that the Pst-secreted protein PSTG_01766 targets TaPLCP1. Transient expression of PSTG_01766 inhibited basal immunity in tobacco (Nicotiana benthamiana) and wheat. The role of PSTG_01766 as an effector involved in HTSP resistance was further supported by host-induced gene silencing and bacterial type three secretion system-mediated delivery into wheat. PSTG_01766 inhibited the TaRIPK-induced phosphorylation of TaPLCP1. Furthermore, PSTG_01766 has the potential to influence the subcellular localization of TaPLCP1. Overall, we suggest that the TaRIPK-TaPLCP1-TaRPM1 module fits the guard model for disease resistance, participating in HTSP resistance. PSTG_01766 decreases HTSP resistance via targeting TaPLCP1. Guarded by wheat and attacked by Pst, TaPLCP1 may serve as a central hub of the defense response. Our findings improve the understanding of the molecular mechanism of wheat HTSP resistance, which may be an important strategy for controlling stripe rust in the face of global warming.

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High-temperature adult-plant resistance to stripe rust in facultative winter wheat

Cited by 3 publications

References 32 publications

TaADF4, an actin‐depolymerizing factor from wheat, is required for resistance to the stripe rust pathogen Puccinia striiformis f. sp. tritici

TaADF4, an actin‐depolymerizing factor from wheat, is required for resistance to the stripe rust pathogen Puccinia striiformis f. sp. tritici

International Winter Wheat Improvement Program: history, activities, impact and future

A Puccinia striiformis f. sp. tritici effector inhibits high‐temperature seedling‐plant resistance in wheat

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