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学者姓名:张龙斌

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N-acetylglucosamine sensor, Ngs1 contributes to Beauveria bassiana vegetative growth, oxidative phosphorylation, fungal development, and cell wall integrity during entomopathogen-insect interaction SCIE
期刊论文 | 2025 , 208 | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
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Abstract :

N-acetylglucosamine (GlcNAc), a key component of fungal cell walls and insect cuticles, is an important signal to activate fungal response during entomopathogen-insect interactions. Research on Ngs1, the only identified GlcNAc sensor and transducer, has been primarily restricted to Candida species. Although our previous work identified an Ngs1 homology in Beauveria bassiana, its physiological functions in entomopathogenic fungi remain largely unexplored. In this study, we unveiled the sub-localization of Ngs1 in the nucleolus. Further transcriptomic analysis revealed that Ngs1 plays a crucial role in vegetative growth, fungal development, and cellwall construction by acting as a transcriptional mediator, particularly influencing carbon metabolism in response to insect cuticle stimulation. The absence of Ngs1 compromised vegetative growth across various carbon sources by downregulating expressions of key catalytic enzymes. Conversely, Ngs1 deficiency enhanced transcription levels of oxidative phosphorylation, leading to increased ATP and reactive oxygen species (ROS) production. Despite higher ATP levels, Ngs1-deletion mutants exhibited reduced asexual development and hyphal germination, primarily due to the function of Ngs1 in the central developmental pathway and Brg1/Nrg1dependent pathway. Additionally, the downregulation of N-glycan biosynthesis in Delta Ngs1 diminished cell wall components, resulting in decreased cell wall resistance to lysis and impaired fungal development. These findings advance our understanding of the regulatory role of Ngs1 in B. bassiana during host interactions and provide a theoretical foundation for engineering fungi to maintain or even enhance pesticidal activity.

Keyword :

Beauveria bassiana Beauveria bassiana Biocontrol traits Biocontrol traits Entomopathogenic fungi Entomopathogenic fungi N -acetylglucosamine sensor N -acetylglucosamine sensor Transcriptome Transcriptome

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GB/T 7714 Cui, Zhou , Yang, Wu-Wei-Jie , Yang, Zhi-Hao et al. N-acetylglucosamine sensor, Ngs1 contributes to Beauveria bassiana vegetative growth, oxidative phosphorylation, fungal development, and cell wall integrity during entomopathogen-insect interaction [J]. | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY , 2025 , 208 .
MLA Cui, Zhou et al. "N-acetylglucosamine sensor, Ngs1 contributes to Beauveria bassiana vegetative growth, oxidative phosphorylation, fungal development, and cell wall integrity during entomopathogen-insect interaction" . | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 208 (2025) .
APA Cui, Zhou , Yang, Wu-Wei-Jie , Yang, Zhi-Hao , Zhang, Long-Bin , Guan, Yi . N-acetylglucosamine sensor, Ngs1 contributes to Beauveria bassiana vegetative growth, oxidative phosphorylation, fungal development, and cell wall integrity during entomopathogen-insect interaction . | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY , 2025 , 208 .
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N-acetylglucosamine sensor, Ngs1 contributes to Beauveria bassiana vegetative growth, oxidative phosphorylation, fungal development, and cell wall integrity during entomopathogen-insect interaction Scopus
期刊论文 | 2025 , 208 , 106273- | Pesticide Biochemistry and Physiology
N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana Scopus
期刊论文 | 2024 , 203 | Pesticide Biochemistry and Physiology
SCOPUS Cited Count: 3
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Abstract :

Beauveria bassiana is a popular and eco-friendly biopesticide. During its pathogen-pest interaction, both N-acetylglucosamine (GlcNAc) catabolism and anabolism are crucial for nutrient supply and cell-wall construction. The initiation of GlcNAc metabolism relies on the catalysis of GlcNAc kinase, which has been extensively studied in the human pathogen Candida albicans. However, the physiological function of GlcNAc kinase remains poorly understood in entomopathogenic fungi. In the present study, a GlcNAc kinase homolog was identified and designated as BbHxk1 in B. bassiana. Deletion of BbHxk1 resulted in viable but reduced vegetative growth on various carbon sources. ΔBbHxk1 mutants displayed severe defects in cell wall integrity, making them more susceptible to cell wall stress cues. Furthermore, the absence of BbHxk1 resulted in an increase in conidial yield and blastospore production, and a faster rate of germination and filamentation, potentially attributed to higher intracellular ATP levels. BbHxk1 deficiency led to a reduction in the activities of cuticle-degrading enzymes, which might contribute to the attenuated pathogenicity specifically through cuticle penetration rather than hemocoel infection towards Galleria mellonella larvae. Being different from C. albicans Hxk1, which facultatively acts as a catalyzing enzyme and transcriptional regulator, BbHxk1 primarily acts as a catalyzing enzyme and metabolic regulator. The altered metabolomic profiling correlated with the phenotypic defects in ΔBbHxk1 mutants, further implicating a potential metabolism-dependent mechanism of BbHxk1 in mediating physiologies of B. bassiana. These findings not only unveil a novel role for GlcNAc kinase in B. bassiana, but also provide a solid theoretical basis to guide metabolic reprogramming in order to maintain or even enhance the efficiency of fungi for practical applications. © 2023

Keyword :

Beauveria bassiana Beauveria bassiana Filamentous entomopathogenic fungus Filamentous entomopathogenic fungus Metabolomics Metabolomics N-acetylglucosamine kinase N-acetylglucosamine kinase Physiological phenotypes Physiological phenotypes

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GB/T 7714 Zhang, L.-B. , Yang, W.-W.-J. , Yang, Z.-H. et al. N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana [J]. | Pesticide Biochemistry and Physiology , 2024 , 203 .
MLA Zhang, L.-B. et al. "N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana" . | Pesticide Biochemistry and Physiology 203 (2024) .
APA Zhang, L.-B. , Yang, W.-W.-J. , Yang, Z.-H. , Guan, Y. . N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana . | Pesticide Biochemistry and Physiology , 2024 , 203 .
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Correction to: A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 (Microbial Cell Factories, (2024), 23, 1, (167), 10.1186/s12934-024-02443-9) Scopus
其他 | 2024 , 23 (1)
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Abstract :

https://doi.org/10.1186/s12934-024-02443-9. Following publication of the original article, the authors identified an error in the author name of Xiu-Gen Qiu. The incorrect author name is: Xiu-Gen Xiu The correct author name is: Xiu-Gen Qiu The author group has been updated above and the original article has been corrected. © The Author(s) 2024.

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GB/T 7714 Zhang, L.-B. , Qiu, X.-G. , Qiu, T.-T. et al. Correction to: A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 (Microbial Cell Factories, (2024), 23, 1, (167), 10.1186/s12934-024-02443-9) [未知].
MLA Zhang, L.-B. et al. "Correction to: A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 (Microbial Cell Factories, (2024), 23, 1, (167), 10.1186/s12934-024-02443-9)" [未知].
APA Zhang, L.-B. , Qiu, X.-G. , Qiu, T.-T. , Cui, Z. , Zheng, Y. , Meng, C. . Correction to: A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 (Microbial Cell Factories, (2024), 23, 1, (167), 10.1186/s12934-024-02443-9) [未知].
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A novel fungal sensor (Ngs1) of N-acetylglucosamine (GlcNAc) mediates the fungal response to GlcNAc in the interaction between entomopathogenic Beauveria bassiana and insect host SCIE
期刊论文 | 2024 , 207 | JOURNAL OF INVERTEBRATE PATHOLOGY
WoS CC Cited Count: 1
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Abstract :

As N-acetylglucosamine (GlcNAc) ubiquitously exists in both insect cuticle and fungal cell walls, the GlcNAc sensor (Ngs1) potentially plays important roles in the interactions between entomopathogenic fungi and their insect hosts. However, the roles of the Ngs1 derived from the entomopathogens in response to the host's cuticle remain completely unexplored. In this study, a putative Ngs1 homolog was identified in the entomopathogenic fungus Beauveria bassiana. Deletion of Ngs1 significantly reduced virulence towards Galleria mellonella larvae either through cuticle infection (by 23%) or by bypassing the cuticle (by 44%). To investigate the role of Ngs1 in fungal virulence, an analysis of the transcriptome induced by Locusta migratoria exoskeleton was conducted, highlighting the regulatory mechanism of Ngs1 in carbohydrate metabolic process, particularly chitin metabolism and GlcNAc metabolism. Consistent with the transcriptomic data, Ngs1-deletion mutants showed reduced activities of both secreted chitinase (17% reduction) and Pr1 protease (35% reduction). Loss of Ngs1 down-regulated the transcript levels of GlcNAc-catabolism genes, resulting in a 17% decrease in fungal growth on GlcNAc-supported media. Furthermore, Ngs1 deficiency attenuated the fungal response to GlcNAc, leading to the alteration of fungal resistance to diverse stress cues. All of these changes contribute to the reduction in virulence in Ngs1-deficient B. bassiana. These findings support that Ngs1 plays a critical role in responding to insect-derived GlcNAc, affecting the production of cuticle-degrading enzymes to penetrate insect epidermis, GlcNAc-induced changes of stress resistance, and contribute to the fungal virulence against insects.

Keyword :

Entomopathogenic fungi Entomopathogenic fungi N -acetylglucosamine response N -acetylglucosamine response N -acetylglucosamine sensor N -acetylglucosamine sensor Pathogenic traits Pathogenic traits Transcriptome Transcriptome

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GB/T 7714 Zhang, Long-Bin , Yang, Zhi-Hao , Yang, Wu-Wei-Jie et al. A novel fungal sensor (Ngs1) of N-acetylglucosamine (GlcNAc) mediates the fungal response to GlcNAc in the interaction between entomopathogenic Beauveria bassiana and insect host [J]. | JOURNAL OF INVERTEBRATE PATHOLOGY , 2024 , 207 .
MLA Zhang, Long-Bin et al. "A novel fungal sensor (Ngs1) of N-acetylglucosamine (GlcNAc) mediates the fungal response to GlcNAc in the interaction between entomopathogenic Beauveria bassiana and insect host" . | JOURNAL OF INVERTEBRATE PATHOLOGY 207 (2024) .
APA Zhang, Long-Bin , Yang, Zhi-Hao , Yang, Wu-Wei-Jie , Guan, Yi . A novel fungal sensor (Ngs1) of N-acetylglucosamine (GlcNAc) mediates the fungal response to GlcNAc in the interaction between entomopathogenic Beauveria bassiana and insect host . | JOURNAL OF INVERTEBRATE PATHOLOGY , 2024 , 207 .
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A novel fungal sensor (Ngs1) of N-acetylglucosamine (GlcNAc) mediates the fungal response to GlcNAc in the interaction between entomopathogenic Beauveria bassiana and insect host Scopus
期刊论文 | 2024 , 207 | Journal of Invertebrate Pathology
Rho4 interacts with BbGDI and is essential for the biocontrol potential of Beauveria bassiana by maintaining intracellular redox homeostasis SCIE
期刊论文 | 2024 , 205 | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
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Abstract :

Rho4 is a member of the Rho-family small GTPases. In this study, we revealed the function of Rho4 and explored its mechanism involved in intracellular redox homeostasis in Beauveria bassiana, one of the most widely utilized filamentous entomopathogenic fungi. The disruption of Rho4 in B. bassiana resulted in significant phenotypic changes, such as fungal virulence, growth rate on different media, thermotolerance, germination, and conidiation. Integrated analysis of proteomic and transcriptomic data unveiled differential expression patterns of various redox-related genes and proteins in Delta rho4, including the down-regulation of GST shown in proteomic and transcriptomic data, and the down-regulated gene expression levels of NOX, SOD, CAT, and GR in the transcriptome. Based on the bi-omics analysis, we focused on the impact of Rho4 in maintaining intracellular redox homeostasis. A decreased ROS content observed in Delta rho4 might be attributed to the reduced NOX activity, which subsequently affects the GSH-producing/consuming metabolisms, with the attenuated activities of GR and GST. The imbalanced redox homeostasis also resulted in the reduced enzyme activities of SOD and CAT. Exogenous oxides could partially complement the ROS level and rescue the growth defect in Delta rho4 to a certain extent. Besides, BbGDI was initially identified as an interacting protein of Rho4 in entomopathogenic fungi. Our results provide a comprehensive understanding of the function and regulating mechanism of Rho4 in B. bassiana.

Keyword :

Beauveria bassiana Beauveria bassiana Proteomic analysis Proteomic analysis Redox homeostasis Redox homeostasis Rho4 Rho4 Small GTPase Small GTPase Transcriptomic analysis Transcriptomic analysis

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GB/T 7714 Zou, Zhenyu , Chen, Xiaonuo , Weng, Xiaojun et al. Rho4 interacts with BbGDI and is essential for the biocontrol potential of Beauveria bassiana by maintaining intracellular redox homeostasis [J]. | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY , 2024 , 205 .
MLA Zou, Zhenyu et al. "Rho4 interacts with BbGDI and is essential for the biocontrol potential of Beauveria bassiana by maintaining intracellular redox homeostasis" . | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 205 (2024) .
APA Zou, Zhenyu , Chen, Xiaonuo , Weng, Xiaojun , Guo, Yuhan , Guan, Yi , Zhang, Longbin . Rho4 interacts with BbGDI and is essential for the biocontrol potential of Beauveria bassiana by maintaining intracellular redox homeostasis . | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY , 2024 , 205 .
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Rho4 interacts with BbGDI and is essential for the biocontrol potential of Beauveria bassiana by maintaining intracellular redox homeostasis Scopus
期刊论文 | 2024 , 205 | Pesticide Biochemistry and Physiology
Transcriptomic and metabolomic analysis unveils a negative effect of glutathione metabolism on laccase activity in Cerrena unicolor 87613 SCIE
期刊论文 | 2024 , 12 (2) | MICROBIOLOGY SPECTRUM
WoS CC Cited Count: 1
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The white rot fungus Cerrena unicolor 87613 has been previously shown to be a promising resource in laccase production, an enzyme with significant biotechnological applications. Conventional methods face technical challenges in improving laccase activity. Attempts are still being made to develop novel approaches for further enhancing laccase activity. This study aimed to understand the regulation of laccase activity in C. unicolor 87613 for a better exploration of the novel approach. Transcriptomic and metabolomic analyses were performed to identify key genes and metabolites involved in extracellular laccase activity. The findings indicated a strong correlation between the glutathione metabolism pathway and laccase activity. Subsequently, experimental verifications were conducted by manipulating the pathway using chemical approaches. The additive reduced glutathione (GSH) dose-dependently repressed laccase activity, while the GSH inhibitors (APR-246) and reactive oxygen species (ROS) inducer (H2O2) enhanced laccase activity. Changes in GSH levels could determine the intracellular redox homeostasis in interaction with ROS and partially affect the expression level of laccase genes in C. unicolor 87613 in turn. In addition, GSH synthetase was found to mediate GSH abundance in a feedback loop. This study suggests that laccase activity is negatively influenced by GSH metabolism and provides a theoretical basis for a novel strategy to enhance laccase activity by reprogramming glutathione metabolism at a specific cultivation stage.

Keyword :

Cerrena unicolor Cerrena unicolor glutathione metabolism glutathione metabolism laccase activity laccase activity metabolome metabolome transcriptome transcriptome

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GB/T 7714 Zhang, Long-Bin , Qiu, Ting-Ting , Qiu, Xiu-Gen et al. Transcriptomic and metabolomic analysis unveils a negative effect of glutathione metabolism on laccase activity in Cerrena unicolor 87613 [J]. | MICROBIOLOGY SPECTRUM , 2024 , 12 (2) .
MLA Zhang, Long-Bin et al. "Transcriptomic and metabolomic analysis unveils a negative effect of glutathione metabolism on laccase activity in Cerrena unicolor 87613" . | MICROBIOLOGY SPECTRUM 12 . 2 (2024) .
APA Zhang, Long-Bin , Qiu, Ting-Ting , Qiu, Xiu-Gen , Yang, Wu-Wei-Jie , Ye, Xiu-Yun , Meng, Chun . Transcriptomic and metabolomic analysis unveils a negative effect of glutathione metabolism on laccase activity in Cerrena unicolor 87613 . | MICROBIOLOGY SPECTRUM , 2024 , 12 (2) .
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Transcriptomic and metabolomic analysis unveils a negative effect of glutathione metabolism on laccase activity in Cerrena unicolor 87613 Scopus
期刊论文 | 2024 , 12 (2) | Microbiology Spectrum
Rad6 Regulates Conidiation by Affecting the Biotin Metabolism in Beauveria bassiana SCIE
期刊论文 | 2024 , 10 (9) | JOURNAL OF FUNGI
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Rad6 is a canonical ubiquitin-conjugating enzyme known for its role in regulating chromosome-related cellular processes in yeast and has been proven to have multiple functions in Beauveria bassiana, including insect-pathogenic lifestyle, UV damage repair, and conidiation. However, previous studies have only reported the key role of Rad6 in regulating conidial production in a nutrient-rich medium, without any deep mechanism analyses. In this study, we found that the disruption of Rad6 leads to a profound reduction in conidial production, irrespective of whether the fungus is cultivated in nutrient-rich or nutrient-poor environments. The absence of rad6 exerts a suppressive effect on the transcription of essential genes in the central developmental pathway, namely, brlA, abaA, and wetA, resulting in a direct downregulation of conidiation capacity. Additionally, mutant strains exhibited a more pronounced decline in both conidial generation and hyphal development when cultured in nutrient-rich conditions. This observation correlates with the downregulation of the central developmental pathway (CDP) downstream gene vosA and the upregulation of flaA in nutrient-rich cultures. Moreover, single-transcriptomics analyses indicated that irregularities in biotin metabolism, DNA repair, and tryptophan metabolism are the underlying factors contributing to the reduced conidial production. Comprehensive dual transcriptomics analyses pinpointed abnormal biotin metabolism as the primary cause of conidial production decline. Subsequently, we successfully restored conidial production in the Rad6 mutant strain through the supplementation of biotin, further confirming the transcriptomic evidence. Altogether, our findings underscore the pivotal role of Rad6 in influencing biotin metabolism, subsequently impacting the expression of CDP genes and ultimately shaping the asexual life cycle of B. bassiana.

Keyword :

Beauveria bassiana Beauveria bassiana biotin biotin conidiation conidiation entomopathogenic fungi entomopathogenic fungi Rad6 Rad6

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GB/T 7714 Guo, Yuhan , He, Haomin , Guan, Yi et al. Rad6 Regulates Conidiation by Affecting the Biotin Metabolism in Beauveria bassiana [J]. | JOURNAL OF FUNGI , 2024 , 10 (9) .
MLA Guo, Yuhan et al. "Rad6 Regulates Conidiation by Affecting the Biotin Metabolism in Beauveria bassiana" . | JOURNAL OF FUNGI 10 . 9 (2024) .
APA Guo, Yuhan , He, Haomin , Guan, Yi , Zhang, Longbin . Rad6 Regulates Conidiation by Affecting the Biotin Metabolism in Beauveria bassiana . | JOURNAL OF FUNGI , 2024 , 10 (9) .
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Rad6 Regulates Conidiation by Affecting the Biotin Metabolism in Beauveria bassiana Scopus
期刊论文 | 2024 , 10 (9) | Journal of Fungi
N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana SCIE
期刊论文 | 2024 , 203 | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
WoS CC Cited Count: 3
Abstract&Keyword Cite Version(1)

Abstract :

Beauveria bassiana is a popular and eco-friendly biopesticide. During its pathogen-pest interaction, both N-acetylglucosamine (GlcNAc) catabolism and anabolism are crucial for nutrient supply and cell-wall construction. The initiation of GlcNAc metabolism relies on the catalysis of GlcNAc kinase, which has been extensively studied in the human pathogen Candida albicans. However, the physiological function of GlcNAc kinase remains poorly understood in entomopathogenic fungi. In the present study, a GlcNAc kinase homolog was identified and designated as BbHxk1 in B. bassiana. Deletion of BbHxk1 resulted in viable but reduced vegetative growth on various carbon sources. Delta BbHxk1 mutants displayed severe defects in cell wall integrity, making them more susceptible to cell wall stress cues. Furthermore, the absence of BbHxk1 resulted in an increase in conidial yield and blastospore production, and a faster rate of germination and filamentation, potentially attributed to higher intracellular ATP levels. BbHxk1 deficiency led to a reduction in the activities of cuticle-degrading enzymes, which might contribute to the attenuated pathogenicity specifically through cuticle penetration rather than hemocoel infection towards Galleria mellonella larvae. Being different from C. albicans Hxk1, which facultatively acts as a catalyzing enzyme and transcriptional regulator, BbHxk1 primarily acts as a catalyzing enzyme and metabolic regulator. The altered metabolomic profiling correlated with the phenotypic defects in Delta BbHxk1 mutants, further implicating a potential metabolism-dependent mechanism of BbHxk1 in mediating physiologies of B. bassiana. These findings not only unveil a novel role for GlcNAc kinase in B. bassiana, but also provide a solid theoretical basis to guide metabolic reprogramming in order to maintain or even enhance the efficiency of fungi for practical applications.

Keyword :

Beauveria bassiana Beauveria bassiana Filamentous entomopathogenic fungus Filamentous entomopathogenic fungus Metabolomics Metabolomics N -acetylglucosamine kinase N -acetylglucosamine kinase Physiological phenotypes Physiological phenotypes

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GB/T 7714 Zhang, Long-Bin , Yang, Wu-Wei-Jie , Yang, Zhi-Hao et al. N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana [J]. | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY , 2024 , 203 .
MLA Zhang, Long-Bin et al. "N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana" . | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 203 (2024) .
APA Zhang, Long-Bin , Yang, Wu-Wei-Jie , Yang, Zhi-Hao , Guan, Yi . N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana . | PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY , 2024 , 203 .
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N-acetylglucosamine kinase (BbHxk1) has pleiotropic effects on vegetative growth, cell wall integrity, morphological transition, cuticle infection, and metabolic modulation in the biological pesticide Beauveria bassiana Scopus
期刊论文 | 2024 , 203 | Pesticide Biochemistry and Physiology
Essential roles of Rad6 in conidial property, stress tolerance, and pathogenicity of Beauveria bassiana SCIE
期刊论文 | 2024 , 15 (1) | VIRULENCE
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Rad6 functions as a ubiquitin-conjugating protein that regulates cellular processes in many fungal species. However, its role in filamentous entomopathogenic fungi remains poorly understood. This study characterizes Rad6 in Beauveria bassiana, a filamentous fungus widely employed as a critical fungicide globally. The results demonstrate a significant association between Rad6 and conidial properties, heat shock response, and UV-B tolerance. Concurrently, the mutant strain exhibited heightened sensitivity to oxidative stress, cell wall interfering agents, DNA damage stress, and prolonged heat shock. Furthermore, the absence of Rad6 significantly extended the median lethal time (LT50) of Galleria mellonella infected by B. bassiana. This delay could be attributed to reduced Pr1 proteases and extracellular cuticle-degrading enzymes, diminished dimorphic transition rates, and dysregulated antioxidant enzymes. Additionally, the absence of Rad6 had a more pronounced effect on genetic information processing, metabolism, and cellular processes under normal conditions. However, its impact was limited to metabolism in oxidative stress. This study offers a comprehensive understanding of the pivotal roles of Rad6 in conidial and hyphal stress tolerance, environmental adaptation, and the pathogenesis of Beauveria bassiana.

Keyword :

Beauveria bassiana Beauveria bassiana DNA damaging DNA damaging filamentous fungi filamentous fungi Rad6 Rad6 stress tolerance stress tolerance virulence virulence

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GB/T 7714 Guan, Yi , He, Haomin , Guo, Yuhan et al. Essential roles of Rad6 in conidial property, stress tolerance, and pathogenicity of Beauveria bassiana [J]. | VIRULENCE , 2024 , 15 (1) .
MLA Guan, Yi et al. "Essential roles of Rad6 in conidial property, stress tolerance, and pathogenicity of Beauveria bassiana" . | VIRULENCE 15 . 1 (2024) .
APA Guan, Yi , He, Haomin , Guo, Yuhan , Zhang, Longbin . Essential roles of Rad6 in conidial property, stress tolerance, and pathogenicity of Beauveria bassiana . | VIRULENCE , 2024 , 15 (1) .
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Essential roles of Rad6 in conidial property, stress tolerance, and pathogenicity of Beauveria bassiana Scopus
期刊论文 | 2024 , 15 (1) | Virulence
A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 SCIE
期刊论文 | 2024 , 23 (1) | MICROBIAL CELL FACTORIES
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Background White-rot fungi are known to naturally produce high quantities of laccase, which exhibit commendable stability and catalytic efficiency. However, their laccase production does not meet the demands for industrial-scale applications. To address this limitation, it is crucial to optimize the conditions for laccase production. However, the regulatory mechanisms underlying different conditions remain unclear. This knowledge gap hinders the cost-effective application of laccases. Results In this study, we utilized transcriptomic and metabolomic data to investigate a promising laccase producer, Cerrena unicolor 87613, cultivated with fructose as the carbon source. Our comprehensive analysis of differentially expressed genes (DEGs) and differentially abundant metabolites (DAMs) aimed to identify changes in cellular processes that could affect laccase production. As a result, we discovered a complex metabolic network primarily involving carbon metabolism and amino acid metabolism, which exhibited contrasting changes between transcription and metabolic patterns. Within this network, we identified five biomarkers, including succinate, serine, methionine, glutamate and reduced glutathione, that played crucial roles in co-determining laccase production levels. Conclusions Our study proposed a complex metabolic network and identified key biomarkers that determine the production level of laccase in the commercially promising Cerrena unicolor 87613. These findings not only shed light on the regulatory mechanisms of carbon sources in laccase production, but also provide a theoretical foundation for enhancing laccase production through strategic reprogramming of metabolic pathways, especially related to the citrate cycle and specific amino acid metabolism.

Keyword :

Cerrena unicolor Cerrena unicolor Fructose Fructose Laccase production Laccase production Metabolic networks Metabolic networks Regulation mechanism Regulation mechanism White rot fungi White rot fungi

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GB/T 7714 Zhang, Long-Bin , Xiu, Xiu-Gen , Qiu, Ting-Ting et al. A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 [J]. | MICROBIAL CELL FACTORIES , 2024 , 23 (1) .
MLA Zhang, Long-Bin et al. "A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613" . | MICROBIAL CELL FACTORIES 23 . 1 (2024) .
APA Zhang, Long-Bin , Xiu, Xiu-Gen , Qiu, Ting-Ting , Cui, Zhou , Zheng, Yan , Meng, Chun . A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 . | MICROBIAL CELL FACTORIES , 2024 , 23 (1) .
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A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 SCIE
期刊论文 | 2024 , 23 (1) | MICROBIAL CELL FACTORIES
A complex metabolic network and its biomarkers regulate laccase production in white-rot fungus Cerrena unicolor 87613 Scopus
期刊论文 | 2024 , 23 (1) | Microbial Cell Factories
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