Yohann Petit
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View article: Improved Gene Annotation of the Fungal Wheat Pathogen <i>Zymoseptoria tritici</i> Based on Combined Iso-Seq and RNA-Seq Evidence
Improved Gene Annotation of the Fungal Wheat Pathogen <i>Zymoseptoria tritici</i> Based on Combined Iso-Seq and RNA-Seq Evidence Open
Despite large omics datasets, the prediction of eukaryotic genes is still challenging. We have developed a new method to improve the prediction of eukaryotic genes and demonstrate its utility using the genome of the fungal wheat pathogen Z…
View article: <i>Zymoseptoria tritici</i> Effectors Structurally Related to Killer Proteins <scp>UmV</scp> ‐ <scp>KP4</scp> and <scp>UmV</scp> ‐ <scp>KP6</scp> Inhibit Fungal Growth, and Define Extended Protein Families in Fungi
<i>Zymoseptoria tritici</i> Effectors Structurally Related to Killer Proteins <span>UmV</span> ‐ <span>KP4</span> and <span>UmV</span> ‐ <span>KP6</span> Inhibit Fungal Growth, and Define Extended Protein Families in Fungi Open
Fungal effectors play crucial roles in plant infection. Despite low sequence identity, they were recently discovered to belong to families with similar three‐dimensional structures. In this study, we elucidated the structures of Zt‐NIP1 an…
View article: The <i>Magnaporthe oryzae</i> effector Pwl2 alters HIPP43 localization to suppress host immunity
The <i>Magnaporthe oryzae</i> effector Pwl2 alters HIPP43 localization to suppress host immunity Open
The rice blast fungus Magnaporthe oryzae secretes a battery of effector proteins to facilitate host infection. Among these effectors, pathogenicity toward weeping lovegrass 2 (Pwl2) was originally identified as a host specificity determina…
View article: <i>Zymoseptoria tritici</i>effectors structurally related to killer proteins UmV-KP4 and UmV-KP6 are toxic to fungi, and define extended protein families in fungi
<i>Zymoseptoria tritici</i>effectors structurally related to killer proteins UmV-KP4 and UmV-KP6 are toxic to fungi, and define extended protein families in fungi Open
Fungal effectors play crucial roles in plant infection. Despite low sequence identity, effectors were recently classified into structural families. In this study, we have elucidated the structures of Zt-NIP1 and Mycgr3-91409 effectors of t…
View article: Bioengineering a plant NLR immune receptor with a robust binding interface toward a conserved fungal pathogen effector
Bioengineering a plant NLR immune receptor with a robust binding interface toward a conserved fungal pathogen effector Open
Bioengineering of plant immune receptors has emerged as a key strategy for generating novel disease resistance traits to counteract the expanding threat of plant pathogens to global food security. However, current approaches are limited by…
View article: The blast effector Pwl2 is a virulence factor that modifies the cellular localisation of host protein HIPP43 to suppress immunity
The blast effector Pwl2 is a virulence factor that modifies the cellular localisation of host protein HIPP43 to suppress immunity Open
The rice blast fungus Magnaporthe oryzae secretes a battery of effector proteins to facilitate host infection. Among these effectors, Pwl2 was first identified as a host specificity determinant for infection of weeping lovegrass ( Eragrost…
View article: Bioengineering a plant NLR immune receptor with a robust binding interface towards a conserved fungal pathogen effector
Bioengineering a plant NLR immune receptor with a robust binding interface towards a conserved fungal pathogen effector Open
Bioengineering of plant immune receptors has emerged as a key strategy for generating novel disease resistance traits to counteract the expanding threat of plant pathogens to global food security. However, current approaches are limited by…
View article: The neighbouring genes <i>AvrLm10A</i> and <i>AvrLm10B</i> are part of a large multigene family of cooperating effector genes conserved in Dothideomycetes and Sordariomycetes
The neighbouring genes <i>AvrLm10A</i> and <i>AvrLm10B</i> are part of a large multigene family of cooperating effector genes conserved in Dothideomycetes and Sordariomycetes Open
Fungal effectors (small‐secreted proteins) have long been considered as species or even subpopulation‐specific. The increasing availability of high‐quality fungal genomes and annotations has allowed the identification of trans‐species or t…
View article: Improved gene annotation of the fungal wheat pathogen<i>Zymoseptoria tritici</i>based on combined Iso-Seq and RNA-Seq evidence
Improved gene annotation of the fungal wheat pathogen<i>Zymoseptoria tritici</i>based on combined Iso-Seq and RNA-Seq evidence Open
Despite large omics datasets, the establishment of a reliable gene annotation is still challenging for eukaryotic genomes. Here, we used the reference genome of the major fungal wheat pathogen Zymoseptoria tritici (isolate IPO323) as a cas…
View article: A new family of structurally conserved fungal effectors displays epistatic interactions with plant resistance proteins
A new family of structurally conserved fungal effectors displays epistatic interactions with plant resistance proteins Open
Recognition of a pathogen avirulence (AVR) effector protein by a cognate plant resistance (R) protein triggers a set of immune responses that render the plant resistant. Pathogens can escape this so-called Effector-Triggered Immunity (ETI)…
View article: Characterization of epistatic interactions within a family of structurally conserved fungal effectors and of their broad-spectrum recognition by a plant resistance protein
Characterization of epistatic interactions within a family of structurally conserved fungal effectors and of their broad-spectrum recognition by a plant resistance protein Open
International audience
View article: The neighboring genes <i>AvrLm10A</i> and <i>AvrLm10B</i> are part of a large multigene family of cooperating effector genes conserved in Dothideomycetes and Sordariomycetes
The neighboring genes <i>AvrLm10A</i> and <i>AvrLm10B</i> are part of a large multigene family of cooperating effector genes conserved in Dothideomycetes and Sordariomycetes Open
With only a few exceptions, fungal effectors (small secreted proteins) have long been considered as species- or even isolate-specific. With the increasing availability of high-quality fungal genomes and annotations, trans-species or trans-…
View article: AvrLm10A/AvrLm10B a part of a multigene family of cooperating effectors largely conserved in Dothideomycetes and Sordariomycetes
AvrLm10A/AvrLm10B a part of a multigene family of cooperating effectors largely conserved in Dothideomycetes and Sordariomycetes Open
National audience
View article: A single amino acid polymorphism in a conserved effector of the multihost blast fungus pathogen expands host-target binding spectrum
A single amino acid polymorphism in a conserved effector of the multihost blast fungus pathogen expands host-target binding spectrum Open
Accelerated gene evolution is a hallmark of pathogen adaptation and specialization following host-jumps. However, the molecular processes associated with adaptive evolution between host-specific lineages of a multihost plant pathogen remai…
View article: A single amino acid polymorphism in a conserved effector of the multihost blast fungus pathogen expands host-target binding spectrum
A single amino acid polymorphism in a conserved effector of the multihost blast fungus pathogen expands host-target binding spectrum Open
Accelerated gene evolution is a hallmark of pathogen adaptation and specialization following host-jumps. However, the molecular processes associated with adaptive evolution between host-specific lineages of a multihost plant pathogen remai…
View article: Ustilago maydis effector Jsi1 interacts with Topless corepressor, hijacking plant jasmonate/ethylene signaling
Ustilago maydis effector Jsi1 interacts with Topless corepressor, hijacking plant jasmonate/ethylene signaling Open
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View article: A new family of structurally conserved fungal effectors displays epistatic interactions with plant resistance proteins
A new family of structurally conserved fungal effectors displays epistatic interactions with plant resistance proteins Open
Recognition of a pathogen avirulence (AVR) effector protein by a cognate plant resistance (R) protein triggers a set of immune responses that render the plant resistant. Pathogens can escape this so-called Effector-Triggered Immunity (ETI)…
View article: <i>Ustilago maydis</i> effector Jsi1 interacts with Topless corepressor, hijacking plant jasmonate/ethylene signaling
<i>Ustilago maydis</i> effector Jsi1 interacts with Topless corepressor, hijacking plant jasmonate/ethylene signaling Open
Summary Ustilago maydis is the causal agent of maize smut disease. During the colonization process, the fungus secretes effector proteins that suppress immune responses and redirect the host metabolism in favor of the pathogen. As effector…
View article: A Clone Resource of <i>Magnaporthe oryzae</i> Effectors That Share Sequence and Structural Similarities Across Host-Specific Lineages
A Clone Resource of <i>Magnaporthe oryzae</i> Effectors That Share Sequence and Structural Similarities Across Host-Specific Lineages Open
The blast fungus Magnaporthe oryzae (syn. Pyricularia oryzae) is a destructive plant pathogen that can infect about 50 species of both wild and cultivated grasses, including important crops such as rice and wheat. M. oryzae is composed of …
View article: Fungal effector Jsi1 hijacks plant JA/ET signaling through Topless
Fungal effector Jsi1 hijacks plant JA/ET signaling through Topless Open
Ustilago maydis (U. maydis) is the causal agent of maize smut disease. During the colonization process, the fungus secretes effector proteins which suppress immune responses and redirect the host-metabolism in favor of the pathogen. Here w…
View article: Two avirulence genes of Leptosphaeria maculans, displaying suppressive interactions, share a common structural pattern and are part of a larger effector family
Two avirulence genes of Leptosphaeria maculans, displaying suppressive interactions, share a common structural pattern and are part of a larger effector family Open
International audience
View article: New effectors from the multihost blast fungus Magnaporthe oryzae target HMA domain containing host proteins
New effectors from the multihost blast fungus Magnaporthe oryzae target HMA domain containing host proteins Open
Magnaporthe oryzaeis a multihost pathogen that infects >50 species of grasses, including the cereal crops wheat, barley and rice. This pathogen deploys an arsenal of secreted proteins called effectors to infect its host plants and countera…
View article: A two genes – for – one gene interaction between <i>Leptosphaeria maculans</i> and <i>Brassica napus</i>
A two genes – for – one gene interaction between <i>Leptosphaeria maculans</i> and <i>Brassica napus</i> Open
Summary Interactions between Leptosphaeria maculans , causal agent of stem canker of oilseed rape, and its Brassica hosts are models of choice to explore the multiplicity of ‘gene‐for‐gene’ complementarities and how they diversified to inc…
View article: Functional analysis of AvrLm10a and AvrLm10b two neighbor effector genes from L.maculans displaying a "two genes for one gene" interaction with the resistance gene Rlm10 from Brassica nigra.
Functional analysis of AvrLm10a and AvrLm10b two neighbor effector genes from L.maculans displaying a "two genes for one gene" interaction with the resistance gene Rlm10 from Brassica nigra. Open
National audience
View article: New insights into plant–microbe interactions through advances in fungal genetics
New insights into plant–microbe interactions through advances in fungal genetics Open
Meetings: MeetingsNew insights into plant–microbeinteractions through advances infungal genetics29thFungal Genetics Conference, AsilomarConference Center, Pacific Grove, California, USA,March 2017
View article: Complex Interactions between Fungal Avirulence Genes and Their Corresponding Plant Resistance Genes and Consequences for Disease Resistance Management
Complex Interactions between Fungal Avirulence Genes and Their Corresponding Plant Resistance Genes and Consequences for Disease Resistance Management Open
During infection, pathogens secrete an arsenal of molecules, collectively called effectors, key elements of pathogenesis which modulate innate immunity of the plant and facilitate infection. Some of these effectors can be recognized direct…
View article: A two genes – for – one gene interaction between Leptosphaeria maculans and Brassica napus
A two genes – for – one gene interaction between Leptosphaeria maculans and Brassica napus Open
Leptosphaeria maculans is a hemibiotophic ascomycete which causes stem canker of oilseed rape. That phytopathogenic fungus interacts with its host (Brassica napus) according to the gene-for-gene concept. The most economically and environme…