Fungal Biology and Biotechnology最新文献

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The decision for or against mycoparasitic attack by Trichoderma spp. is taken already at a distance in a prey-specific manner and benefits plant-beneficial interactions. 毛霉属真菌寄生攻击与否的决定是在一定距离外以猎物特异性的方式做出的,有利于植物之间的有益互动。
Fungal Biology and Biotechnology Pub Date : 2024-09-09 DOI: 10.1186/s40694-024-00183-4
Pia Stange, Johannes Kersting, Prasath Balaji Sivaprakasam Padmanaban, Jörg-Peter Schnitzler, Maaria Rosenkranz, Tanja Karl, J Philipp Benz
{"title":"The decision for or against mycoparasitic attack by Trichoderma spp. is taken already at a distance in a prey-specific manner and benefits plant-beneficial interactions.","authors":"Pia Stange, Johannes Kersting, Prasath Balaji Sivaprakasam Padmanaban, Jörg-Peter Schnitzler, Maaria Rosenkranz, Tanja Karl, J Philipp Benz","doi":"10.1186/s40694-024-00183-4","DOIUrl":"https://doi.org/10.1186/s40694-024-00183-4","url":null,"abstract":"<p><strong>Background: </strong>The application of plant-beneficial microorganisms as bio-fertilizer and biocontrol agents has gained traction in recent years, as both agriculture and forestry are facing the challenges of poor soils and climate change. Trichoderma spp. are gaining popularity in agriculture and forestry due to their multifaceted roles in promoting plant growth through e.g. nutrient translocation, hormone production, induction of plant systemic resistance, but also direct antagonism of other fungi. However, the mycotrophic nature of the genus bears the risk of possible interference with other native plant-beneficial fungi, such as ectomycorrhiza, in the rhizosphere. Such interference could yield unpredictable consequences for the host plants of these ecosystems. So far, it remains unclear, whether Trichoderma is able to differentiate between plant-beneficial and plant-pathogenic fungi during the process of plant colonization.</p><p><strong>Results: </strong>We investigated whether Trichoderma spp. can differentiate between beneficial ectomycorrhizal fungi (represented by Laccaria bicolor and Hebeloma cylindrosporum) and pathogenic fungi (represented by Fusarium graminearum and Alternaria alternata) in different confrontation scenarios, including a newly developed olfactometer \"race tube\"-like system. Using two independent species, T. harzianum and T. atrobrunneum, with plant-growth-promoting and immune-stimulating properties towards Populus x canescens, our study revealed robustly accelerated growth towards phytopathogens, while showing a contrary response to ectomycorrhizal fungi. Transcriptomic analyses identified distinct genetic programs during interaction corresponding to the lifestyles, emphasizing the expression of mycoparasitism-related genes only in the presence of phytopathogens.</p><p><strong>Conclusion: </strong>The findings reveal a critical mode of fungal community interactions belowground and suggest that Trichoderma spp. can distinguish between fungal partners of different lifestyles already at a distance. This sheds light on the entangled interactions of fungi in the rhizosphere and emphasizes the potential benefits of using Trichoderma spp. as a biocontrol agent and bio-fertilizer in tree plantations.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11384713/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142300569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Streptomyces small laccase expressed in Aspergillus Niger as a new addition for the lignocellulose bioconversion toolbox. 在尼日尔黑曲霉中表达的链霉菌小漆酶是木质纤维素生物转化工具箱中的新成员。
Fungal Biology and Biotechnology Pub Date : 2024-09-02 DOI: 10.1186/s40694-024-00181-6
Andika Sidar, Gerben P Voshol, Ahmed El-Masoudi, Erik Vijgenboom, Peter J Punt
{"title":"Streptomyces small laccase expressed in Aspergillus Niger as a new addition for the lignocellulose bioconversion toolbox.","authors":"Andika Sidar, Gerben P Voshol, Ahmed El-Masoudi, Erik Vijgenboom, Peter J Punt","doi":"10.1186/s40694-024-00181-6","DOIUrl":"10.1186/s40694-024-00181-6","url":null,"abstract":"<p><p>Laccases are multi-copper oxidases that are usually composed of three Cu-oxidase domains. Domains one and three house the copper binding sites, and the second domain is involved in forming a substrate-binding cleft. However, Streptomyces species are found to have small laccases (SLAC) that lack one of the three Cu-oxidase domains. This type of SLAC with interesting lignocellulose bioconversion activities has not been reported in Aspergillus niger. In our research, we explored the expression and engineering of the SLAC from Streptomyces leeuwenhoekii C34 in A. niger. Genes encoding two versions of the SLAC were expressed. One encoding the SLAC in its native form and a second encoding the SLAC fused to two N-terminal CBM1 domains. The latter is a configuration also known for specific yeast laccases. Both SLAC variants were functionally expressed in A. niger as shown by in vitro activity assays and proteome analysis. Laccase activity was also analyzed toward bioconversion of lignocellulosic rice straw. From this analysis it was clear that the SLAC activity improved the efficiency of saccharification of lignocellulosic biomass by cellulase enzyme cocktails.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11368006/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142121146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Border crossings and connections. 过境和连接。
Fungal Biology and Biotechnology Pub Date : 2024-08-22 DOI: 10.1186/s40694-024-00182-5
Martin Weinhold
{"title":"Border crossings and connections.","authors":"Martin Weinhold","doi":"10.1186/s40694-024-00182-5","DOIUrl":"10.1186/s40694-024-00182-5","url":null,"abstract":"<p><p>From 30 September 2023 to 7 January 2024, the Nobel Prize Museum in Stockholm presented the show Fungi-In Art and Science. For the exhibition, an alliance of scientists, artists, and designers was brought together that overcame all the alleged borders between the disciplines, between the scientific and the creative world. This special exhibition is the starting point to take on a tour where it is about crossing borders and growing connections when working with fungi. My interview partners represent perfectly the different angles from which you can take a look onto the kingdom of fungi. There is the person without previous knowledge but with a profound artistic understanding who got mesmerized by the subject-matter, which he didn't realize it existed before-Karl-Johan Cottman. There is the scientist, being knee-deep in fungi matter who discovered the arts for an extension of her scientific understanding-Vera Meyer. And last but not least there is the person living passionately for the arts who found fungi mesmerizing for both art creation and progressive/sustainable production-Phil Ross. So, there are three threads weaving one fungal fabric. Have fun reading it!</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11342535/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patent landscape analysis for materials based on fungal mycelium: a guidance report on how to interpret the current patent situation. 基于真菌菌丝体的材料专利状况分析:关于如何解读当前专利状况的指导报告。
Fungal Biology and Biotechnology Pub Date : 2024-08-10 DOI: 10.1186/s40694-024-00177-2
Vera Meyer, Sabine Mengel
{"title":"Patent landscape analysis for materials based on fungal mycelium: a guidance report on how to interpret the current patent situation.","authors":"Vera Meyer, Sabine Mengel","doi":"10.1186/s40694-024-00177-2","DOIUrl":"10.1186/s40694-024-00177-2","url":null,"abstract":"<p><strong>Background: </strong>Recent advancements in the collaboration between two scientific disciplines-fungal biotechnology and materials sciences-underscore the potential of fungal mycelium as renewable resource for sustainable biomaterials that can be harnessed in different industries. As fungal mycelium can be biotechnologically obtained from different filamentous fungi and is as a material very versatile, respective research and commercial application should be thriving. However, some granted patents in the field of fungal mycelium-based materials have caused uncertainty in the community as to which subject matter is patent-protected and for how long the protection is expected to last.</p><p><strong>Results: </strong>This opinion paper therefore maps the patent landscape of fungal mycelium-based materials with a specific focus on technical applications including building construction, insulation, packaging, and the like. We provide an overview of granted patents (73) and pending applications (34) related to granted patents, the dominant patent portfolios (five, with the number of patents and/or applications per owner between six and 44), the patent owners, and highlight the key claims formulated to protect the inventions. Additionally, we outline various options towards an increased activity in the field.</p><p><strong>Conclusion: </strong>Patent developments in the field leave the impression that fungal materials, despite their high potential as renewable and biodegradable materials, have been held back due to patent over-protection. Considering the need for replacing current petroleum-based materials with renewable biomaterials, coordinated efforts may be called for to intensify efforts in the field.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11316976/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141914549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NHEJ and HDR can occur simultaneously during gene integration into the genome of Aspergillus niger. 在黑曲霉基因组整合过程中,NHEJ 和 HDR 可同时发生。
Fungal Biology and Biotechnology Pub Date : 2024-08-05 DOI: 10.1186/s40694-024-00180-7
Susanne Fritsche, Aline Reinfurt, Felix Fronek, Matthias G Steiger
{"title":"NHEJ and HDR can occur simultaneously during gene integration into the genome of Aspergillus niger.","authors":"Susanne Fritsche, Aline Reinfurt, Felix Fronek, Matthias G Steiger","doi":"10.1186/s40694-024-00180-7","DOIUrl":"10.1186/s40694-024-00180-7","url":null,"abstract":"<p><p>Non-homologous end joining (NHEJ) and homology-directed repair (HDR) are two mechanisms in filamentous fungi to repair DNA damages. NHEJ is the dominant response pathway to rapidly join DNA double-strand breaks, but often leads to insertions or deletions. On the other hand, HDR is more precise and utilizes a homologous DNA template to restore the damaged sequence. Both types are exploited in genetic engineering approaches ranging from knock-out mutations to precise sequence modifications.In this study, we evaluated the efficiency of an HDR based gene integration system designed for the pyrG locus of Aspergillus niger. While gene integration was achieved at a rate of 91.4%, we also discovered a mixed-type repair (MTR) mechanism with simultaneous repair of a Cas9-mediated double-strand break by both NHEJ and HDR. In 20.3% of the analyzed transformants the donor DNA was integrated by NHEJ at the 3' end and by HDR at the 5' end of the double-strand break. Furthermore, sequencing of the locus revealed different DNA repair mechanisms at the site of the NHEJ event.Together, the results support the applicability of the genome integration system and a novel DNA repair type with implication on the diversity of genetic modifications in filamentous fungi.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11301975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dry gel spinning of fungal hydrogels for the development of renewable yarns from food waste. 利用真菌水凝胶的干凝胶纺丝技术,从食物垃圾中开发可再生纱线。
Fungal Biology and Biotechnology Pub Date : 2024-08-02 DOI: 10.1186/s40694-024-00178-1
Alice Lindh, E R Kanishka B Wijayarathna, Göksu Cinar Ciftci, Samira Syed, Tariq Bashir, Nawar Kadi, Akram Zamani
{"title":"Dry gel spinning of fungal hydrogels for the development of renewable yarns from food waste.","authors":"Alice Lindh, E R Kanishka B Wijayarathna, Göksu Cinar Ciftci, Samira Syed, Tariq Bashir, Nawar Kadi, Akram Zamani","doi":"10.1186/s40694-024-00178-1","DOIUrl":"10.1186/s40694-024-00178-1","url":null,"abstract":"<p><strong>Background: </strong>Renewable materials made using environmentally friendly processes are in high demand as a solution to reduce the pollution created by the fashion industry. In recent years, there has been a growing trend in research on renewable materials focused on bio-based materials derived from fungi.</p><p><strong>Results: </strong>Recently, fungal cell wall material of a chitosan producing fungus has been wet spun to monofilaments. This paper presents a modification for the fungal monofilament spinning process, by the development of a benign method, dry gel spinning, to produce continuous monofilaments and twisted multifilament yarns, from fungal cell wall, that can be used in textile applications. The fungal biomass of Rhizopus delemar, grown using bread waste as a substrate, was subjected to alkali treatment with a dilute sodium hydroxide solution to isolate alkali-insoluble material (AIM), which mainly consists of the fungal cell wall. The treatment of AIM with dilute lactic acid resulted in hydrogel formation. The morphology of the hydrogels was pH dependent, and they exhibited shear thinning viscoelastic behavior. Dry gel spinning of the fungal hydrogels was first conducted using a simple lab-scale syringe pump to inject the hydrogels through a needle to form a monofilament, which was directly placed on a rotating receiver and left to dry at room temperature. The resulting monofilament was used to make twisted multifilament yarns. The process was then improved by incorporating a heated chamber for the quicker drying of the monofilaments (at 30⁰C). Finally, the spinning process was scaled up using a twin-screw microcompounder instead of the syringe pump. The monofilaments were several meters long and reached a tensile strength of 63 MPa with a % elongation at break of 14. When spinning was performed in the heated chamber, the tensile strength increased to 80 MPa and further increased to 103 MPa when a micro-compounder was used for spinning.</p><p><strong>Conclusion: </strong>The developed dry gel spinning method shows promising results in scalability and demonstrates the potential for renewable material production using fungi. This novel approach produces materials with mechanical properties comparable to those of conventional textile fibers.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11295346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141879771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Increasing the efficiency of CRISPR/Cas9-mediated genome editing in the citrus postharvest pathogen Penicillium digitatum. 提高 CRISPR/Cas9 介导的柑橘采后病原体数字青霉基因组编辑的效率。
Fungal Biology and Biotechnology Pub Date : 2024-07-13 DOI: 10.1186/s40694-024-00179-0
Carolina Ropero-Pérez, Jose F Marcos, Paloma Manzanares, Sandra Garrigues
{"title":"Increasing the efficiency of CRISPR/Cas9-mediated genome editing in the citrus postharvest pathogen Penicillium digitatum.","authors":"Carolina Ropero-Pérez, Jose F Marcos, Paloma Manzanares, Sandra Garrigues","doi":"10.1186/s40694-024-00179-0","DOIUrl":"10.1186/s40694-024-00179-0","url":null,"abstract":"<p><strong>Background: </strong>Penicillium digitatum is a fungal plant pathogen that causes the green mold disease in harvested citrus fruits. Due to its economical relevance, many efforts have focused on the development of genetic engineering tools for this fungus. Adaptation of the CRISPR/Cas9 technology was previously accomplished with self-replicative AMA1-based plasmids for marker-free gene editing, but the resulting efficiency (10%) limited its practical implementation. In this study, we aimed to enhance the efficiency of the CRISPR/Cas9-mediated gene editing in P. digitatum to facilitate its practical use.</p><p><strong>Results: </strong>Increasing the culture time by performing additional culture streaks under selection conditions in a medium that promotes slower growth rates significantly improved the gene editing efficiency in P. digitatum up to 54-83%. To prove this, we disrupted five candidate genes that were chosen based on our previous high-throughput gene expression studies aimed at elucidating the transcriptomic response of P. digitatum to the antifungal protein PdAfpB. Two of these genes lead to visual phenotypic changes (PDIG_53730/pksP, and PDIG_54100/arp2) and allowed to start the protocol optimization. The other three candidates (PDIG_56860, PDIG_33760/rodA and PDIG_68680/dfg5) had no visually associated phenotype and were targeted to confirm the high efficiency of the protocol.</p><p><strong>Conclusion: </strong>Genome editing efficiency of P. digitatum was significantly increased from 10% to up to 83% through the modification of the selection methodology, which demonstrates the feasibility of the CRISPR/Cas9 system for gene disruption in this phytopathogenic fungus. Moreover, the approach described in this study might help increase CRISPR/Cas9 gene editing efficiencies in other economically relevant fungal species for which editing efficiency via CRISPR/Cas9 is still low.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11245846/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141604496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 review on the cultivation, bioactive compounds, health-promoting factors and clinical trials of medicinal mushrooms Taiwanofungus camphoratus, Inonotus obliquus and Tropicoporus linteus. 关于药用蘑菇台湾樟芝、猪蹄菇和林芝的栽培、生物活性化合物、健康促进因素和临床试验的综述。
Fungal Biology and Biotechnology Pub Date : 2024-07-10 DOI: 10.1186/s40694-024-00176-3
Phoebe Yon Ern Tee, Thiiben Krishnan, Xin Tian Cheong, Snechaa A P Maniam, Chung Yeng Looi, Yin Yin Ooi, Caroline Lin Lin Chua, Shin-Yee Fung, Adeline Yoke Yin Chia
{"title":"A review on the cultivation, bioactive compounds, health-promoting factors and clinical trials of medicinal mushrooms Taiwanofungus camphoratus, Inonotus obliquus and Tropicoporus linteus.","authors":"Phoebe Yon Ern Tee, Thiiben Krishnan, Xin Tian Cheong, Snechaa A P Maniam, Chung Yeng Looi, Yin Yin Ooi, Caroline Lin Lin Chua, Shin-Yee Fung, Adeline Yoke Yin Chia","doi":"10.1186/s40694-024-00176-3","DOIUrl":"10.1186/s40694-024-00176-3","url":null,"abstract":"<p><p>Medicinal mushrooms, such as Taiwanofungus camphoratus, Inonotus obliquus, and Tropicoporus linteus, have been used in traditional medicine for therapeutic purposes and promotion of overall health in China and many East Asian countries for centuries. Modern pharmacological studies have demonstrated the large amounts of bioactive constituents (such as polysaccharides, triterpenoids, and phenolic compounds) available in these medicinal mushrooms and their potential therapeutic properties. Due to the rising demand for the health-promoting medicinal mushrooms, various cultivation methods have been explored to combat over-harvesting of the fungi. Evidence of the robust pharmacological properties, including their anticancer, hypoglycemic, hypolipidemic, antioxidant, and antiviral activities, have been provided in various studies, where the health-benefiting properties of the medicinal fungi have been further proven through numerous clinical trials. In this review, the cultivation methods, available bioactive constituents, therapeutic properties, and potential uses of T. camphoratus, I. obliquus and T. linteus are explored.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11238383/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141581489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genomic deletions in Aureobasidium pullulans by an AMA1 plasmid for gRNA and CRISPR/Cas9 expression. 利用 AMA1 质粒在 Aureobasidium pullulans 中进行基因组缺失,以实现 gRNA 和 CRISPR/Cas9 表达。
Fungal Biology and Biotechnology Pub Date : 2024-06-01 DOI: 10.1186/s40694-024-00175-4
Audrey Masi, Klara Wögerbauer, Robert L Mach, Astrid R Mach-Aigner
{"title":"Genomic deletions in Aureobasidium pullulans by an AMA1 plasmid for gRNA and CRISPR/Cas9 expression.","authors":"Audrey Masi, Klara Wögerbauer, Robert L Mach, Astrid R Mach-Aigner","doi":"10.1186/s40694-024-00175-4","DOIUrl":"10.1186/s40694-024-00175-4","url":null,"abstract":"<p><strong>Background: </strong>Aureobasidium pullulans is a generalist polyextremotolerant black yeast fungus. It tolerates temperatures below 0 °C or salt concentrations up to 18%, among other stresses. A. pullulans genome sequencing revealed a high potential for producing bioactive metabolites. Only few molecular tools exist to edit the genome of A. pullulans, hence it is important to make full use of its potential. Two CRISPR/Cas9 methods have been proposed for the protoplast-based transformation of A. pullulans. These methods require the integration of a marker gene into the locus of the gene to be deleted, when the deletion of this gene does not yield a selectable phenotype. We present the adaptation of a plasmid-based CRISPR/Cas9 system developed in Aspergillus niger for A. pullulans to create deletion strains.</p><p><strong>Results: </strong>The A. niger CRISPR/Cas9 plasmid led to efficient genomic deletions in A. pullulans. In this study, strains with deletions ranging from 30 to 862 bp were obtained by using an AMA1 plasmid-based genome editing strategy.</p><p><strong>Conclusion: </strong>The CRISPR/Cas9 transformation system presented in this study provides new opportunities for strain engineering of A. pullulans. This system allows expression of Cas9 and antibiotic resistance while being easy to adapt. This strategy could open the path to intensive genomic engineering in A. pullulans.</p>","PeriodicalId":52292,"journal":{"name":"Fungal Biology and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11143684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141186951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An improved expression and purification protocol enables the structural characterization of Mnt1, an antifungal target from Candida albicans. 通过改进表达和纯化方案,实现了白念珠菌抗真菌靶标 Mnt1 的结构表征。
Fungal Biology and Biotechnology Pub Date : 2024-05-07 DOI: 10.1186/s40694-024-00174-5
Patrícia Alves Silva, Amanda Araújo Souza, Gideane Mendes de Oliveira, Marcelo Henrique Soller Ramada, Nahúm Valente Hernández, Héctor Manuel Mora-Montes, Renata Vieira Bueno, Diogo Martins-de-Sa, Sonia Maria de Freitas, Maria Sueli Soares Felipe, João Alexandre Ribeiro Gonçalves Barbosa
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