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Enzymatic Strategies for Biocontrolling Phytopathogenic Fungi Using Trichoderma Koningiopsis LBM116 利用Koningiopsis LBM116生物防治植物病原真菌的酶促策略
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-12 DOI: 10.1111/1758-2229.70122
Natalia Soledad Amerio, Marcela Paola Barengo, Gustavo Angel Bich, Pedro Dario Zapata, Laura Lidia Villalba, María Lorena Castrillo
{"title":"Enzymatic Strategies for Biocontrolling Phytopathogenic Fungi Using Trichoderma Koningiopsis LBM116","authors":"Natalia Soledad Amerio,&nbsp;Marcela Paola Barengo,&nbsp;Gustavo Angel Bich,&nbsp;Pedro Dario Zapata,&nbsp;Laura Lidia Villalba,&nbsp;María Lorena Castrillo","doi":"10.1111/1758-2229.70122","DOIUrl":"https://doi.org/10.1111/1758-2229.70122","url":null,"abstract":"<p>The growing demand for sustainable alternatives to chemical fungicides has driven the development of microbial-based biocontrol strategies. In this study, the native strain <i>Trichoderma koningiopsis</i> LBM116 (Misiones, Argentina) was optimised for the production of mycolytic enzymes (chitinases, β-1,3-glucanases, and proteases) using factorial and response surface experimental designs. Enzyme secretion was increased by more than 250% compared to initial conditions by selecting specific carbon and nitrogen sources and adjusting inoculum and pH parameters. The optimised enzyme formulation improved lettuce seed germination to 86.66% in the presence of the phytopathogen <i>Fusarium</i> sp., under controlled conditions. In seedling trials, it also reduced disease severity and improved growth parameters. These results confirm the dual effect of the enzyme formulation, acting as a biocontrol agent and plant growth promoter. This work highlights the potential of enzyme formulations derived from <i>T. koningiopsis</i> LBM116 as an effective, low-cost, and sustainable alternative for managing phytopathogens in agriculture.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enzymatic Strategies for Biocontrolling Phytopathogenic Fungi Using Trichoderma Koningiopsis LBM116 利用Koningiopsis LBM116生物防治植物病原真菌的酶促策略
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-12 DOI: 10.1111/1758-2229.70122
Natalia Soledad Amerio, Marcela Paola Barengo, Gustavo Angel Bich, Pedro Dario Zapata, Laura Lidia Villalba, María Lorena Castrillo
{"title":"Enzymatic Strategies for Biocontrolling Phytopathogenic Fungi Using Trichoderma Koningiopsis LBM116","authors":"Natalia Soledad Amerio,&nbsp;Marcela Paola Barengo,&nbsp;Gustavo Angel Bich,&nbsp;Pedro Dario Zapata,&nbsp;Laura Lidia Villalba,&nbsp;María Lorena Castrillo","doi":"10.1111/1758-2229.70122","DOIUrl":"https://doi.org/10.1111/1758-2229.70122","url":null,"abstract":"<p>The growing demand for sustainable alternatives to chemical fungicides has driven the development of microbial-based biocontrol strategies. In this study, the native strain <i>Trichoderma koningiopsis</i> LBM116 (Misiones, Argentina) was optimised for the production of mycolytic enzymes (chitinases, β-1,3-glucanases, and proteases) using factorial and response surface experimental designs. Enzyme secretion was increased by more than 250% compared to initial conditions by selecting specific carbon and nitrogen sources and adjusting inoculum and pH parameters. The optimised enzyme formulation improved lettuce seed germination to 86.66% in the presence of the phytopathogen <i>Fusarium</i> sp., under controlled conditions. In seedling trials, it also reduced disease severity and improved growth parameters. These results confirm the dual effect of the enzyme formulation, acting as a biocontrol agent and plant growth promoter. This work highlights the potential of enzyme formulations derived from <i>T. koningiopsis</i> LBM116 as an effective, low-cost, and sustainable alternative for managing phytopathogens in agriculture.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evolutionary Convergence of Nutritional Symbionts in Ticks 蜱中营养共生体的进化趋同
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70120
Noor Fattar, Meriem Louni, Marie Buysse, Anna Maria Floriano, Joanne Bertaux, Anne Cantereau, Ana Rivero, Marjorie Bruley, Karen D. McCoy, Vincent Delafont, Nathalie Boulanger, Fabrice Vavre, Didier Bouchon, Olivier Duron
{"title":"Evolutionary Convergence of Nutritional Symbionts in Ticks","authors":"Noor Fattar,&nbsp;Meriem Louni,&nbsp;Marie Buysse,&nbsp;Anna Maria Floriano,&nbsp;Joanne Bertaux,&nbsp;Anne Cantereau,&nbsp;Ana Rivero,&nbsp;Marjorie Bruley,&nbsp;Karen D. McCoy,&nbsp;Vincent Delafont,&nbsp;Nathalie Boulanger,&nbsp;Fabrice Vavre,&nbsp;Didier Bouchon,&nbsp;Olivier Duron","doi":"10.1111/1758-2229.70120","DOIUrl":"https://doi.org/10.1111/1758-2229.70120","url":null,"abstract":"<p>Symbiosis with bacteria is essential for the survival of animals with an obligate blood-feeding lifestyle. In ticks, two distinct bacterial lineages, <i>Coxiella</i>-like and <i>Francisella</i>-like endosymbionts, have independently evolved into nutritional symbionts, converging on a key biochemical function for the tick's survival and growth: the production of three B vitamins. In this study, we carried out comparative analyses across multiple tick species and characterised remarkable similarities in their tissue localisation, particularly in organs important for nutrient metabolism and maternal transmission to progeny. In these organs, both symbionts colonise similar intracellular niches, residing within membrane-bound, replicative vacuoles that occupy a substantial part of the cytoplasm of tick cells. Despite extensive genomic reduction, both symbionts have retained pathways for the biosynthesis of B vitamins and, in some cases, chorismate, a precursor used for the production of serotonin by ticks. However, differences exist: while <i>Coxiella</i>-like endosymbionts lack the ability to synthesise heme, <i>Francisella</i>-like endosymbionts possess a complete heme biosynthesis pathway and may potentially provide ticks with this essential cofactor. Overall, these phenotypic and genomic characteristics reveal a broad convergence among symbiotic interactions across major tick families, highlighting the essential role of symbiosis in tick nutrition, feeding behaviour, blood intake and subsequently in pathogen transmission.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overwintering Does Not Affect Microbiota Diversity in Halyomorpha halys: Implications for Its Ecology and Management 越冬不影响Halyomorpha halys微生物群多样性:对其生态学和管理的启示
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70116
Riccardo Piccinno, Giulio Galla, Gerardo Roselli, Mirco Rodeghiero, Valerio Mazzoni, Lloyd Stringer, Heidi Christine Hauffe, Gianfranco Anfora, Omar Rota-Stabelli
{"title":"Overwintering Does Not Affect Microbiota Diversity in Halyomorpha halys: Implications for Its Ecology and Management","authors":"Riccardo Piccinno,&nbsp;Giulio Galla,&nbsp;Gerardo Roselli,&nbsp;Mirco Rodeghiero,&nbsp;Valerio Mazzoni,&nbsp;Lloyd Stringer,&nbsp;Heidi Christine Hauffe,&nbsp;Gianfranco Anfora,&nbsp;Omar Rota-Stabelli","doi":"10.1111/1758-2229.70116","DOIUrl":"https://doi.org/10.1111/1758-2229.70116","url":null,"abstract":"<p>Host-associated microbial communities play an important role in regulating many aspects of insect biology, but changes in this microbiota during diapause and overwintering are still largely unknown. <i>Halyomorpha halys</i> is an invasive agricultural pest characterised by a unique overwintering strategy where individuals aggregate and enter a state of dormancy, making it an excellent model to study the relationship between microbiota and diapause. We investigated the bacterial diversity of wild <i>H. halys</i> specimens before and after dormancy using 16S rRNA gene amplicon-sequencing. We found that microbiota varies between geographically neighbouring sampling locations, but there were no significant differences in microbial diversity or composition between populations sampled before and after diapause, despite stressful overwintering conditions. Such stability may relate to the highly specific taxa that dominate the stinkbug-associated microbial community. In addition, we did not detect any strong association of stink bugs with phytopathogens, but we found that two populations harboured <i>Nosema maddoxi</i>, a microsporidian pathogen of stink bugs. Our results are relevant to the assessment of accidental spillovers of microorganisms in newly invaded areas and to the implementation of the sterile insect technique based on mass trapping, irradiation, shipping and release after diapause of wild individuals.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144245073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacterial Diversity and Succession in the Presence of Steel and Effects on Corrosion 钢存在下的细菌多样性和演替及其对腐蚀的影响
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70119
Liam Nolan, Théo Risser, Rainier Catubig, Abhirami Venugopal, Jess Glasson, Damien L. Callahan, Anthony Somers, M. Leigh Ackland, Agnes Michalczyk
{"title":"Bacterial Diversity and Succession in the Presence of Steel and Effects on Corrosion","authors":"Liam Nolan,&nbsp;Théo Risser,&nbsp;Rainier Catubig,&nbsp;Abhirami Venugopal,&nbsp;Jess Glasson,&nbsp;Damien L. Callahan,&nbsp;Anthony Somers,&nbsp;M. Leigh Ackland,&nbsp;Agnes Michalczyk","doi":"10.1111/1758-2229.70119","DOIUrl":"https://doi.org/10.1111/1758-2229.70119","url":null,"abstract":"<p>Steel corrosion is an extensive problem worldwide, substantially impacting marine infrastructures. In this study, the influence of steel on bacterial succession and corrosion was investigated by culturing marine water samples with and without steel coupons for 14 days. Compared to abiotic controls, oxygen levels were rapidly depleted in biotic cultures. Fe levels increased in controls compared to biotic cultures, potentially due to anoxic conditions and the incorporation of Fe in the biofilm. Proteobacteria dominated the initial cultures, but over 14 days the number of phylogenetic groups decreased overall in abundance. Taxons that increased in abundance included <i>Clostridiaceae</i>, <i>Fusobacteriaceae</i>, <i>Flavobacteriaceae</i> and <i>Prolixibacteraceae</i>, some members of which can utilise Fe. While initially in low abundance, <i>Arcobacteraceae</i>, <i>Pseudoalteromonadaceae</i>, <i>Rhodobacteraceae</i> and <i>Rhizobiaceae</i> numbers increased over time. Sites 1 and 2 cultures displayed localised deep pitting corrosion on coupon surfaces, consistent with microbial action, with an increase in Bacteroidetes, suggesting this phylum facilitates corrosion. In contrast, Site 3 cultures displayed uniform, superficial corrosion, with <i>Clostridiaceae</i> being the dominating family by Day 14, suggesting corrosion inhibition through biofilm formation. By identifying bacteria associated with corrosion, targeted approaches to corrosion reduction may be developed through identifying significant metabolic pathways by transcriptomics and the application of metabolic inhibitors.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacterial Diversity and Succession in the Presence of Steel and Effects on Corrosion 钢存在下的细菌多样性和演替及其对腐蚀的影响
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70119
Liam Nolan, Théo Risser, Rainier Catubig, Abhirami Venugopal, Jess Glasson, Damien L. Callahan, Anthony Somers, M. Leigh Ackland, Agnes Michalczyk
{"title":"Bacterial Diversity and Succession in the Presence of Steel and Effects on Corrosion","authors":"Liam Nolan,&nbsp;Théo Risser,&nbsp;Rainier Catubig,&nbsp;Abhirami Venugopal,&nbsp;Jess Glasson,&nbsp;Damien L. Callahan,&nbsp;Anthony Somers,&nbsp;M. Leigh Ackland,&nbsp;Agnes Michalczyk","doi":"10.1111/1758-2229.70119","DOIUrl":"https://doi.org/10.1111/1758-2229.70119","url":null,"abstract":"<p>Steel corrosion is an extensive problem worldwide, substantially impacting marine infrastructures. In this study, the influence of steel on bacterial succession and corrosion was investigated by culturing marine water samples with and without steel coupons for 14 days. Compared to abiotic controls, oxygen levels were rapidly depleted in biotic cultures. Fe levels increased in controls compared to biotic cultures, potentially due to anoxic conditions and the incorporation of Fe in the biofilm. Proteobacteria dominated the initial cultures, but over 14 days the number of phylogenetic groups decreased overall in abundance. Taxons that increased in abundance included <i>Clostridiaceae</i>, <i>Fusobacteriaceae</i>, <i>Flavobacteriaceae</i> and <i>Prolixibacteraceae</i>, some members of which can utilise Fe. While initially in low abundance, <i>Arcobacteraceae</i>, <i>Pseudoalteromonadaceae</i>, <i>Rhodobacteraceae</i> and <i>Rhizobiaceae</i> numbers increased over time. Sites 1 and 2 cultures displayed localised deep pitting corrosion on coupon surfaces, consistent with microbial action, with an increase in Bacteroidetes, suggesting this phylum facilitates corrosion. In contrast, Site 3 cultures displayed uniform, superficial corrosion, with <i>Clostridiaceae</i> being the dominating family by Day 14, suggesting corrosion inhibition through biofilm formation. By identifying bacteria associated with corrosion, targeted approaches to corrosion reduction may be developed through identifying significant metabolic pathways by transcriptomics and the application of metabolic inhibitors.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Novel Pathosystem With the Model Plant Arabidopsis thaliana for Defining the Molecular Basis of Taphrina Infections 以拟南芥为模式植物的一种新的病理系统,确定了稻瘟病毒感染的分子基础
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70118
Agate Auzane, Margaretta Christita, Kai Wang, Timo Sipilä, Sitaram Rajaraman, Gugan Eswaran, Jasmin Kemppinen, Alejandro De La Fuente, Klaas Bouwmeester, Petri Auvinen, Lars Paulin, Jarkko Salojärvi, Maija Sierla, Mikael Broché, Kirk Overmyer
{"title":"A Novel Pathosystem With the Model Plant Arabidopsis thaliana for Defining the Molecular Basis of Taphrina Infections","authors":"Agate Auzane,&nbsp;Margaretta Christita,&nbsp;Kai Wang,&nbsp;Timo Sipilä,&nbsp;Sitaram Rajaraman,&nbsp;Gugan Eswaran,&nbsp;Jasmin Kemppinen,&nbsp;Alejandro De La Fuente,&nbsp;Klaas Bouwmeester,&nbsp;Petri Auvinen,&nbsp;Lars Paulin,&nbsp;Jarkko Salojärvi,&nbsp;Maija Sierla,&nbsp;Mikael Broché,&nbsp;Kirk Overmyer","doi":"10.1111/1758-2229.70118","DOIUrl":"https://doi.org/10.1111/1758-2229.70118","url":null,"abstract":"<p>Plant-associated yeasts modulate host immunity to promote or prevent disease. Mechanisms of yeast perception by the plant innate immune system remain unknown, with progress hindered by lack of a model system with the model plant <i>Arabidopsis thaliana</i> (<i>Arabidopsis</i>). A yeast strain of <i>Taphrina tormentillae</i>, named M11, was previously isolated from wild <i>Arabidopsis. Taphrina</i> have been found on many non-host plants, and their complex ecology remains understudied. Here, the interaction of M11 with <i>Arabidopsis</i> was characterised. Infection of <i>Arabidopsis</i> with the birch pathogen <i>T. betulina</i>, used as a non-host control, triggered typical defence activation features but did not multiply, demonstrating <i>Arabidopsis</i> had immunity against a non-adapted yeast. M11 triggered attenuated defence activation features, grew <i>in planta</i>, and caused subtle but clear leaf deformation symptoms, demonstrating it is pathogenic. M11 was widely distributed in environmental sequencing data and found on multiple non-host plants, suggesting <i>Taphrina</i> play previously unrecognised ecological roles on multiple plant species. M11 genome features involved in host interaction were analysed, and potential immune stimulatory molecules in chitin-free cell walls were identified. A pilot screen demonstrated the utility of reverse genetics with <i>Arabidopsis</i> and identified that the BAK1 co-receptor is involved in the perception of M11 <i>Taphrina</i> cell walls.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evolutionary Convergence of Nutritional Symbionts in Ticks 蜱中营养共生体的进化趋同
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70120
Noor Fattar, Meriem Louni, Marie Buysse, Anna Maria Floriano, Joanne Bertaux, Anne Cantereau, Ana Rivero, Marjorie Bruley, Karen D. McCoy, Vincent Delafont, Nathalie Boulanger, Fabrice Vavre, Didier Bouchon, Olivier Duron
{"title":"Evolutionary Convergence of Nutritional Symbionts in Ticks","authors":"Noor Fattar,&nbsp;Meriem Louni,&nbsp;Marie Buysse,&nbsp;Anna Maria Floriano,&nbsp;Joanne Bertaux,&nbsp;Anne Cantereau,&nbsp;Ana Rivero,&nbsp;Marjorie Bruley,&nbsp;Karen D. McCoy,&nbsp;Vincent Delafont,&nbsp;Nathalie Boulanger,&nbsp;Fabrice Vavre,&nbsp;Didier Bouchon,&nbsp;Olivier Duron","doi":"10.1111/1758-2229.70120","DOIUrl":"https://doi.org/10.1111/1758-2229.70120","url":null,"abstract":"<p>Symbiosis with bacteria is essential for the survival of animals with an obligate blood-feeding lifestyle. In ticks, two distinct bacterial lineages, <i>Coxiella</i>-like and <i>Francisella</i>-like endosymbionts, have independently evolved into nutritional symbionts, converging on a key biochemical function for the tick's survival and growth: the production of three B vitamins. In this study, we carried out comparative analyses across multiple tick species and characterised remarkable similarities in their tissue localisation, particularly in organs important for nutrient metabolism and maternal transmission to progeny. In these organs, both symbionts colonise similar intracellular niches, residing within membrane-bound, replicative vacuoles that occupy a substantial part of the cytoplasm of tick cells. Despite extensive genomic reduction, both symbionts have retained pathways for the biosynthesis of B vitamins and, in some cases, chorismate, a precursor used for the production of serotonin by ticks. However, differences exist: while <i>Coxiella</i>-like endosymbionts lack the ability to synthesise heme, <i>Francisella</i>-like endosymbionts possess a complete heme biosynthesis pathway and may potentially provide ticks with this essential cofactor. Overall, these phenotypic and genomic characteristics reveal a broad convergence among symbiotic interactions across major tick families, highlighting the essential role of symbiosis in tick nutrition, feeding behaviour, blood intake and subsequently in pathogen transmission.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Novel Pathosystem With the Model Plant Arabidopsis thaliana for Defining the Molecular Basis of Taphrina Infections 以拟南芥为模式植物的一种新的病理系统,确定了稻瘟病毒感染的分子基础
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70118
Agate Auzane, Margaretta Christita, Kai Wang, Timo Sipilä, Sitaram Rajaraman, Gugan Eswaran, Jasmin Kemppinen, Alejandro De La Fuente, Klaas Bouwmeester, Petri Auvinen, Lars Paulin, Jarkko Salojärvi, Maija Sierla, Mikael Broché, Kirk Overmyer
{"title":"A Novel Pathosystem With the Model Plant Arabidopsis thaliana for Defining the Molecular Basis of Taphrina Infections","authors":"Agate Auzane,&nbsp;Margaretta Christita,&nbsp;Kai Wang,&nbsp;Timo Sipilä,&nbsp;Sitaram Rajaraman,&nbsp;Gugan Eswaran,&nbsp;Jasmin Kemppinen,&nbsp;Alejandro De La Fuente,&nbsp;Klaas Bouwmeester,&nbsp;Petri Auvinen,&nbsp;Lars Paulin,&nbsp;Jarkko Salojärvi,&nbsp;Maija Sierla,&nbsp;Mikael Broché,&nbsp;Kirk Overmyer","doi":"10.1111/1758-2229.70118","DOIUrl":"https://doi.org/10.1111/1758-2229.70118","url":null,"abstract":"<p>Plant-associated yeasts modulate host immunity to promote or prevent disease. Mechanisms of yeast perception by the plant innate immune system remain unknown, with progress hindered by lack of a model system with the model plant <i>Arabidopsis thaliana</i> (<i>Arabidopsis</i>). A yeast strain of <i>Taphrina tormentillae</i>, named M11, was previously isolated from wild <i>Arabidopsis. Taphrina</i> have been found on many non-host plants, and their complex ecology remains understudied. Here, the interaction of M11 with <i>Arabidopsis</i> was characterised. Infection of <i>Arabidopsis</i> with the birch pathogen <i>T. betulina</i>, used as a non-host control, triggered typical defence activation features but did not multiply, demonstrating <i>Arabidopsis</i> had immunity against a non-adapted yeast. M11 triggered attenuated defence activation features, grew <i>in planta</i>, and caused subtle but clear leaf deformation symptoms, demonstrating it is pathogenic. M11 was widely distributed in environmental sequencing data and found on multiple non-host plants, suggesting <i>Taphrina</i> play previously unrecognised ecological roles on multiple plant species. M11 genome features involved in host interaction were analysed, and potential immune stimulatory molecules in chitin-free cell walls were identified. A pilot screen demonstrated the utility of reverse genetics with <i>Arabidopsis</i> and identified that the BAK1 co-receptor is involved in the perception of M11 <i>Taphrina</i> cell walls.</p>","PeriodicalId":163,"journal":{"name":"Environmental Microbiology Reports","volume":"17 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1758-2229.70118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overwintering Does Not Affect Microbiota Diversity in Halyomorpha halys: Implications for Its Ecology and Management 越冬不影响Halyomorpha halys微生物群多样性:对其生态学和管理的启示
IF 3.6 4区 生物学
Environmental Microbiology Reports Pub Date : 2025-06-10 DOI: 10.1111/1758-2229.70116
Riccardo Piccinno, Giulio Galla, Gerardo Roselli, Mirco Rodeghiero, Valerio Mazzoni, Lloyd Stringer, Heidi Christine Hauffe, Gianfranco Anfora, Omar Rota-Stabelli
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