WAX INDUCER1 (HvWIN1) transcription factor regulates free fatty acid biosynthetic genes to reinforce cuticle to resist Fusarium head blight in barley spikelets

Kumar, Arun; Yogendra, Kalenahalli N.; Karre, Shailesh; Kushalappa, Ajjamada C.; Dion, Yves; Choo, T. M.

doi:10.1093/jxb/erw187

Cited by 56 publications

(45 citation statements)

References 65 publications

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“…Negative effects of N fertilization on epidermal cuticle thickness as well as disease susceptibility have been seen in the leaf of tomato [61] and fruit of peach [62]. The degree of plant epidermal lignification can effectively prevent the penetration of pathogens, thereby reducing the incidence of disease [4]. Furthermore, as a key enzyme in lignin biosynthesis, cinnamyl alcohol dehydrogenase is negatively regulated by N fertilization, and its inhibition makes Arabidopsis more susceptible to Pseudomonas syringae pv.…”

Section: Physical Defence Mechanismsmentioning

confidence: 99%

“…Typically, this form of defence consists of physical barriers and pre-formed chemical compounds ( Figure 1) [2,3]. The strength of the physical barrier directly determines the number of pathogens entering the plant so that changes in the cuticle permeability, cell wall thickness and the degree of lignification critically affect plant resistance to pathogen infection [4,5]. The associated chemical defences consist primarily of secondary metabolites that inhibit microbial growth and further invasion.…”

Section: Introductionmentioning

confidence: 99%

“…plant so that changes in the cuticle permeability, cell wall thickness and the degree of lignification critically affect plant resistance to pathogen infection [4,5]. The associated chemical defences consist primarily of secondary metabolites that inhibit microbial growth and further invasion.…”

Section: Introductionmentioning

confidence: 99%

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Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences

Sun

Wang

Mur

et al. 2020

IJMS

146

113

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Nitrogen (N) is one of the most important elements that has a central impact on plant growth and yield. N is also widely involved in plant stress responses, but its roles in host-pathogen interactions are complex as each affects the other. In this review, we summarize the relationship between N nutrition and plant disease and stress its importance for both host and pathogen. From the perspective of the pathogen, we describe how N can affect the pathogen’s infection strategy, whether necrotrophic or biotrophic. N can influence the deployment of virulence factors such as type III secretion systems in bacterial pathogen or contribute nutrients such as gamma-aminobutyric acid to the invader. Considering the host, the association between N nutrition and plant defence is considered in terms of physical, biochemical and genetic mechanisms. Generally, N has negative effects on physical defences and the production of anti-microbial phytoalexins but positive effects on defence-related enzymes and proteins to affect local defence as well as systemic resistance. N nutrition can also influence defence via amino acid metabolism and hormone production to affect downstream defence-related gene expression via transcriptional regulation and nitric oxide (NO) production, which represents a direct link with N. Although the critical role of N nutrition in plant defences is stressed in this review, further work is urgently needed to provide a comprehensive understanding of how opposing virulence and defence mechanisms are influenced by interacting networks.

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Section: Physical Defence Mechanismsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences

Sun

Wang

Mur

et al. 2020

IJMS

146

113

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“…Using synthetic microRNAs, Shi et al (2011) simultaneously silenced three Arabidopsis SHN clade members, suggesting the redundant functions of SHN TFs in cutin biosynthesis; the reduced activity of SHN TFs led to a decrease in the cutin load and fusion of floral organs. Further studies demonstrated that the overexpression of SHN TFs often leads to an enhanced tolerance of transgenic plants to abiotic and biotic stresses (Al-Abdallat, Al-Debei, Ayad, & Hasan, 2014;Bao et al, 2017;Kumar et al, 2016;Sadler et al, 2016;Sela et al, 2013;Wang et al, 2012;Yang, Isabel Ordiz, Jaworski, & Beachy, 2011).…”

Section: Introductionmentioning

confidence: 99%

Overexpression of the TaSHN1 transcription factor in bread wheat leads to leaf surface modifications, improved drought tolerance, and no yield penalty under controlled growth conditions

Shi

Kovalchuk

et al. 2018

Plant Cell & Environment

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Transcription factors regulate multiple networks, mediating the responses of organisms to stresses, including drought. Here, we investigated the role of the wheat transcription factor TaSHN1 in crop growth and drought tolerance. TaSHN1, isolated from bread wheat, was characterized for molecular interactions and functionality. The overexpression of TaSHN1 in wheat was followed by the evaluation of T and T transgenic lines for drought tolerance, growth, and yield components. Leaf surface changes were analysed by light microscopy, SEM, TEM, and GC-MS/GC-FID. TaSHN1 behaves as a transcriptional activator in a yeast transactivation assay and binds stress-related DNA cis-elements, determinants of which were revealed using 3D molecular modelling. The overexpression of TaSHN1 in transgenic wheat did not result in a yield penalty under the controlled plant growth conditions of a glasshouse. Transgenic lines had significantly lower stomatal density and leaf water loss and exhibited improved recovery after severe drought, compared with control plants. The comparative analysis of cuticular waxes revealed an increased accumulation of alkanes in leaves of transgenic lines. Our data demonstrate that TaSHN1 may operate as a positive modulator of drought stress tolerance. Positive attributes could be mediated through an enhanced accumulation of alkanes and reduced stomatal density.

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“…В качестве примеров применения VIGS можно при-вести недавние работы по изучению транскрипционных факторов, контролирующих устойчивость к засухе и фузариозу (Kumar et al, 2016): анализ по-следствий «выключения» экспрессии гена в клетках взрослого растения используется как часть комплексного процесса исследования, направленного на всестороннее выявление функций целевых генов.…”

Section: другие методы генной инженерии для изучения генетического коunclassified

Transgenic plants as genetic models for studying functions of plant genes

Кочетов¹,

Шумный²

2016

Vestn. VOGiS

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WAX INDUCER1 (HvWIN1) transcription factor regulates free fatty acid biosynthetic genes to reinforce cuticle to resist Fusarium head blight in barley spikelets

Abstract: HighlightWAX INDUCER1 (HvWIN1) transcription factor regulates cutin biosynthetic genes to reinforce cuticle to resist Fusarium head blight. CYP86A2, CYP89A2 and LACS2 are potential downstream targets of HvWIN1.

Cited by 56 publications

References 65 publications

Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences

Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences

Overexpression of the TaSHN1 transcription factor in bread wheat leads to leaf surface modifications, improved drought tolerance, and no yield penalty under controlled growth conditions

Transgenic plants as genetic models for studying functions of plant genes

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