L-type lectin receptor kinases: New forces in plant immunity

Wang, Yan; Bouwmeester, Klaas

doi:10.1371/journal.ppat.1006433

Cited by 74 publications

(65 citation statements)

References 38 publications

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“…The transcriptional reprogramming during AMF establishment (Gallou et al ., ) could also help the plant to recognize and more efficiently resist a pathogen attack. Lectin receptor kinases (LecRKs), which in this study were induced exclusively in mycorrhizal plants, are supposed to play important roles in sensing alterations at the plant cell wall and, subsequently, in mediating response reactions (Wang & Bouwmeester, ). Moreover, receptor kinases are proposed to positively regulate plant immunity at the transcriptional level and to mediate priming regulation (Wang & Bouwmeester, ).…”

Section: Discussionmentioning

confidence: 99%

“…Lectin receptor kinases (LecRKs), which in this study were induced exclusively in mycorrhizal plants, are supposed to play important roles in sensing alterations at the plant cell wall and, subsequently, in mediating response reactions (Wang & Bouwmeester, ). Moreover, receptor kinases are proposed to positively regulate plant immunity at the transcriptional level and to mediate priming regulation (Wang & Bouwmeester, ). Thus, the enhanced resistance or tolerance of mycorrhizal soybean plants to F. virguliforme may not only be a consequence of defence priming.…”

Section: Discussionmentioning

confidence: 99%

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Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome

et al. 2019

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Soilborne pathogens represent a threat to agriculture causing important yield losses. Sudden death syndrome (SDS) of soybean is a severe disease caused by a complex of Fusarium species. This pathosystem has been widely investigated and several strategies have been proposed to manage SDS. Although a decrease in symptoms and in the level of root tissue infection, particularly by F. virguliforme, was observed in the presence of arbuscular mycorrhizal fungi (AMF), biological control based on AMF has received less attention. Here, the results are reported of transcriptional analysis of mycorrhizal versus nonmycorrhizal soybean plantlets infected by F. virguliforme, grown under strict in vitro culture experimental conditions. Important transcriptional reprogramming was detected following infection by the pathogen. Results revealed 1768 and 967 differentially expressed genes in the AMF‐colonized (+AMF+Fv) and noncolonized (−AMF+Fv) plants, respectively. Major transcriptional changes corresponded to defence response‐related genes belonging to secondary metabolism, stress and signalling categories. The +AMF+Fv treatment showed the largest number of up‐regulated genes related to defence, such as those encoding disease resistance proteins, WRKY transcription factors, auxins, receptors kinases and proteases. Only a few genes had primed expression in the +AMF+Fv treatment, such as those encoding a thaumatin‐like protein (TLP) and a pleiotropic drug resistance (PDR) protein. Moreover, +AMF+Fv showed a significantly greater number of down‐regulated genes related to cell wall modification and peroxidases than the –AMF+Fv treatment. This detailed investigation increases knowledge of transcriptional changes and potential metabolic pathways involved in the enhanced resistance or tolerance of mycorrhizal plants to infection by F. virguliforme.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome

et al. 2019

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“…In animals, C‐lectin receptors are key players in innate immune responses. It is worth highlighting Dectin‐1, the mammalian β‐glucan receptor, which was the first mammalian non‐Toll‐like receptor discovered that is capable of coupling microbial recognition with transcriptional regulation of genes (Figure ; Brown and Gordon, ; Dambuza and Brown, ; Wang and Bouwmeester, ). In plants, Lec‐RLKs have a prominent role in biotic stress responses (Bouwmeester et al ., ; Desclos‐Theveniau et al ., ; Singh et al ., ; Wang et al ., , ; Gouhier‐Darimont et al ., ; Huang et al ., ; Balague et al ., ), in contrast to their minor role in developmental processes (Bellande et al ., ).…”

Section: Molecular Mechanisms For the Perception Of Cwi Alterations Amentioning

confidence: 99%

“…Lectins are widespread carbohydrate-binding proteins that can bind mono-and oligosaccharides (Bellande et al, 2017). Plant Lec-RLKs comprise PRRs with lectin-type extracellular domains that have been divided into three subclasses: (i) G-(GNA-related or S-locus) lectins; (ii) C-(calcium-dependent) lectins; and (iii) L-(legume) lectins (Wang and Bouwmeester, 2017). In animals, C-lectin receptors are key players in innate immune responses.…”

Section: Lectin-like (Lec)-prrs: a Diverse Set Of Plant Receptors Shamentioning

confidence: 99%

“…In plants, Lec-RLKs have a prominent role in biotic stress responses (Bouwmeester et al, 2011;Desclos-Theveniau et al, 2012;Singh et al, 2012;Wang et al, 2012Wang et al, , 2014Gouhier-Darimont et al, 2013;Huang et al, 2013;Balague et al, 2017), in contrast to their minor role in developmental processes (Bellande et al, 2017). However, only two ligand-LecRLK pairs have been identified (Bellande et al, 2017;Wang and Bouwmeester, 2017): lipopolysaccharides (LPSs)-LORE and extracellular ATP (eATP)-DORN1.…”

Section: Lectin-like (Lec)-prrs: a Diverse Set Of Plant Receptors Shamentioning

confidence: 99%

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Plant cell wall‐mediated immunity: cell wall changes trigger disease resistance responses

et al. 2018

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Plants have evolved a repertoire of monitoring systems to sense plant morphogenesis and to face environmental changes and threats caused by different attackers. These systems integrate different signals into overreaching triggering pathways which coordinate developmental and defence-associated responses. The plant cell wall, a dynamic and complex structure surrounding every plant cell, has emerged recently as an essential component of plant monitoring systems, thus expanding its function as a passive defensive barrier. Plants have a dedicated mechanism for maintaining cell wall integrity (CWI) which comprises a diverse set of plasma membrane-resident sensors and pattern recognition receptors (PRRs). The PRRs perceive plant-derived ligands, such as peptides or wall glycans, known as damage-associated molecular patterns (DAMPs). These DAMPs function as 'danger' alert signals activating DAMP-triggered immunity (DTI), which shares signalling components and responses with the immune pathways triggered by non-self microbe-associated molecular patterns that mediate disease resistance. Alteration of CWI by impairment of the expression or activity of proteins involved in cell wall biosynthesis and/or remodelling, as occurs in some plant cell wall mutants, or by wall damage due to colonization by pathogens/pests, activates specific defensive and growth responses. Our current understanding of how these alterations of CWI are perceived by the wall monitoring systems is scarce and few plant sensors/PRRs and DAMPs have been characterized. The identification of these CWI sensors and PRR-DAMP pairs will help us to understand the immune functions of the wall monitoring system, and might allow the breeding of crop varieties and the design of agricultural strategies that would enhance crop disease resistance.

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High-resolution mapping of SrTm4, a recessive resistance gene to wheat stem rust

Li¹,

Luo²,

Zhang

et al. 2023

Theor Appl Genet

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Key message The diploid wheat recessive stem rust resistance gene SrTm4 was fine-mapped to a 754-kb region on chromosome arm 2AmL and potential candidate genes were identified. Abstract Race Ug99 of Puccinia graminis f. sp. tritici (Pgt), the causal agent of wheat stem (or black) rust is one of the most serious threats to global wheat production. The identification, mapping, and deployment of effective stem rust resistance (Sr) genes are critical to reduce this threat. In this study, we generated SrTm4 monogenic lines and found that this gene confers resistance to North American and Chinese Pgt races. Using a large mapping population (9522 gametes), we mapped SrTm4 within a 0.06 cM interval flanked by marker loci CS4211 and 130K1519, which corresponds to a 1.0-Mb region in the Chinese Spring reference genome v2.1. A physical map of the SrTm4 region was constructed with 11 overlapping BACs from the resistant Triticum monococcum PI 306540. Comparison of the 754-kb physical map with the genomic sequence of Chinese Spring and a discontinuous BAC sequence of DV92 revealed a 593-kb chromosomal inversion in PI 306540. Within the candidate region, we identified an L-type lectin-domain containing receptor kinase (LLK1), which was disrupted by the proximal inversion breakpoint, as a potential candidate gene. Two diagnostic dominant markers were developed to detect the inversion breakpoints. In a survey of T. monococcum accessions, we identified 10 domesticated T. monococcum subsp. monococcum genotypes, mainly from the Balkans, carrying the inversion and showing similar mesothetic resistant infection types against Pgt races. The high-density map and tightly linked molecular markers developed in this study are useful tools to accelerate the deployment of SrTm4-mediated resistance in wheat breeding programs.

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L-type lectin receptor kinases: New forces in plant immunity

Cited by 74 publications

References 38 publications

Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome

Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome

Plant cell wall‐mediated immunity: cell wall changes trigger disease resistance responses

High-resolution mapping of SrTm4, a recessive resistance gene to wheat stem rust

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