ArticleBiotechnology for biofuels and bioproducts2023
The putative methyltransferase LaeA regulates mycelium growth and cellulase production in Myceliophthora thermophila.
Article in Biotechnology for biofuels and bioproducts, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 16 citations in OpenAlex.
- Research Advances on the Functions of Transcriptional Regulators in Filamentous Fungi.Microorganisms · 2026Review
- Transcription factor MtCLR-2 regulates cellulase production via direct modulation of Mtegl2 and Mtbgl1 expression in Myceliophthora thermophila.Microbial cell factories · 2026Article
- The global regulator LaeA controls expression of genes involved in diverse primary and secondary metabolites biosynthesis and their secretion in fungi.Frontiers in microbiology · 2026Review
- MTD: A cloud-based omics database and interactive platform forSynthetic and systems biotechnology · 2025Article
- Epigenetic Regulation of Fungal Secondary Metabolism.Journal of fungi (Basel, Switzerland) · 2024Review
- Involvement of LaeA and Velvet Proteins in Regulating the Production of Mycotoxins and Other Fungal Secondary Metabolites.Journal of fungi (Basel, Switzerland) · 2024Review
- Enhanced ε-Poly-L-Lysine Production inBiomolecules · 2024Article
- Histone H2B lysine 122 and lysine 130, as the putative targets of Penicillium oxalicum LaeA, play important roles in asexual development, expression of secondary metabolite gene clusters, and extracellular glycoside hydrolase synthesis.World journal of microbiology & biotechnology · 2024Article
- Different Putative Methyltransferases Have Different Effects on the Expression Patterns of Cellulolytic Genes.Journal of fungi (Basel, Switzerland) · 2023Article
- Development of an efficient protein expression system in the thermophilic fungus Myceliophthora thermophila.Microbial cell factories · 2023Article
- PrJournal of fungi (Basel, Switzerland) · 2023Article
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7 authors at 2 institutions in 1 country.
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Abstract
backgroundFilamentous fungi with the ability to use complex carbon sources has been developed as platforms for biochemicals production. Myceliophthora thermophila has been developed as the cell factory to produce lignocellulolytic enzymes and plant biomass-based biofuels and biochemicals in biorefinery. However, low fungal growth rate and cellulose utilization efficiency are significant barriers to the satisfactory yield and productivity of target products, which needs our further exploration and improvement.
resultsIn this study, we comprehensively explored the roles of the putative methyltransferase LaeA in regulating mycelium growth, sugar consumption, and cellulases expression. Deletion of laeA in thermophile fungus Myceliophthora thermophila enhanced mycelium growth and glucose consumption significantly. Further exploration of LaeA regulatory network indicated that multiple growth regulatory factors (GRF) Cre-1, Grf-1, Grf-2, and Grf-3, which act as negative repressors of carbon metabolism, were regulated by LaeA in this fungus. We also determined that phosphoenolpyruvate carboxykinase (PCK) is the core node of the metabolic network related to fungal vegetative growth, of which enhancement partially contributed to the elevated sugar consumption and fungal growth of mutant ΔlaeA. Noteworthily, LaeA participated in regulating the expression of cellulase genes and their transcription regulator. ΔlaeA exhibited 30.6% and 5.5% increases in the peak values of extracellular protein and endo-glucanase activity, respectively, as compared to the WT strain. Furthermore, the global histone methylation assays indicated that LaeA is associated with modulating H3K9 methylation levels. The normal function of LaeA on regulating fungal physiology is dependent on methyltransferase activity.
conclusionsThe research presented in this study clarified the function and elucidated the regulatory network of LaeA in the regulation of fungal growth and cellulase production, which will significantly deepen our understanding about the regulation mechanism of LaeA in filamentous fungi and provides the new strategy for improvement the fermentation properties of industrial fungal strain by metabolic engineering.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.