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Myceliophthora thermophila Xyr1 is predominantly involved in xylan degradation and xylose catabolism

ABSTRACT: The aim of this study is to investigate the role of the transcription factor Xyr1 in the regulation of cellulolytic and xylanolytic genes of the filamantous fungus Myceliophthora thermophila

ORGANISM(S): Thermothelomyces thermophilus

PROVIDER: GSE137286 | GEO | 2019/09/12

REPOSITORIES: GEO

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Myceliophthora thermophila Xyr1 is predominantly involved in xylan degradation and xylose catabolism

Project description:Myceliophthora thermophila Xyr1 is predominantly involved in xylan degradation and xylose catabolism

| PRJNA565008 | ENA

Transcriptomic response to different biomass in Myceliophthora thermophila (Sporotrichum thermophile)

Project description:The thermophilic filamentous fungi Myceliophthora thermophila (Sporotrichum thermophile) has an ability to decompose cellulolytic biomass. To identify the genes and proteins involved in this process, we explored the transcriptomes of M. thermophila grown at 45 °C on different agricultural straws (oat, triticale, canola, flax straws).

2016-11-28 | GSE57235 | GEO

<i>Myceliophthora thermophila</i> Xyr1 is predominantly involved in xylan degradation and xylose catabolism.

Project description: Not available

| S-EPMC6745793 | biostudies-literature

Engineering the Cellulolytic Fungus Myceliophthora thermophila into a Platform for Producing Commodity Chemicals Directly from Lignocellulose

Project description:Producing the fuels and chemicals from renewable plant biomass has been thought as a feasible way for global sustainable development. However, the economical efficiency of biorefinery remains challenges. Here a cellulolytic thermophilic fungus, Myceliophthora thermophila, was constructed into a platform through metabolic engineering, which can efficiently convert lignocellulose to important bulk chemicals for polymers, four carbon 1, 4-diacids (malic and succinic acid), directly from lignocellulose without any extra enzymes addition or complicated pretreatment, with titer of over 200 g/L on cellulose and 110 g/L on plant biomass (corncob) during fed-batch fermentation. Our study represents a milestone of consolidated bioprocessing technology (CBP) and offers a new promising system for cost-effectively production of biomass-based chemicals and potentially fuels.

2021-05-04 | GSE114057 | GEO

Transcriptomic response to substrate and temperature in two thermophilic fungi, Myceliophthora thermophila and Thielavia terrestris, and a related mesophile, Chaetomium globosum

Project description:The thermophilic filamentous fungi Myceliophthora thermophila (Sporotrichum thermophile) and Thielavia terrestris are proficient decomposers of cellulose, suggesting that they will be a rich source of thermostable industrial enzymes for lignocellulose degradation. To identify the genes and proteins involved in this process, we explored the transcriptomes of M. thermophila and T. terrestris growing at 45 ºC on either glucose, alfalfa, or barley straw by short-read sequencing of extracted mRNA. To better understand the adaptations that allow these fungi to grow at elevated temperatures, we compared their transcriptomes when growing at 34C to their transcritomes at 45C, and also to the transcriptome of the related fungus Chaetomium globosum, which does not grow at 45C. RNA was extracted from cultures in early growth stage growing with glucose, alfalfa, or barley straw as carbon source at 34C or 45C (M. thermophila and T. terrestris); duplicate cultures were sampled in some conditions.

2011-08-08 | E-GEOD-27323 | biostudies-arrayexpress

Transcriptional profiling of Myceliophthora thermophila on galactose and metabolic engineering for improved galactose utilization

Project description:Transcriptional landscape of MyceliopTranscriptional profiling of Myceliophthora thermophila on galactose and metabolic engineering for improved galactose utilization thora thermophila responding to soluble starch and the role of regulator AmyR on polysaccharide degradation Efficient biological conversion of all sugars from lignocellulosic biomass is necessary for cost-effective production of biofuels and commodity chemicals. Galactose is the next most abundant sugar in many hemicelluloses and it will be important to capture this carbon for an efficient bioconversion process of plant biomass. Thermophilic fugus Myceliophthora thermophila has been used as cell factory to produce biochemicals directly from renewable polysaccharides. This study determined the transcriptomic profiles of M. thermophila responding to galactose and identified the gene involved in the oxido-reductive pathway for galactose degradation, of which hexokinase might be the rate-limiting enzyme in this thermophilic fungus. Galactokinase was necessary for high induction of galactose transporter and disruption of galK resulted in decreased galactose utilization. Both of galactokinase deletion and sugar transporter overexpression could further activate the oxido-reductive pathway and led to improved galactose utilization. In addition, disruption of the Leloir pathway brought about reduced tolerance to cell wall perturbation, oxidative stress and high osmolality. In order to accelerate galactose consumption, the third galactose-degradation pathway- De Ley-Doudoroff pathway was successfully integrated into M. thermophila and the consumption rate of galactose was increased by 57%. This study will be benefit for the rational design of fungal strains to produce biofuels and biochemical from plant biomass, especially, marine plant biomass with the abundant of galactose, such as red seaweed and molasses.

2021-02-05 | GSE165516 | GEO

Reconstruction and analysis genome-scale metabolic model of thermophilic fungus Myceliophthora thermophila

Project description:Myceliophthora thermophila is a thermophilic fungus with great biotechnological characteristics for industrial applications, which can degrade and utilize all major polysaccharides in plant biomass. Nowadays, it has been developing into a platform for production of enzyme, commodity chemicals and biofuels. Therefore, an accurate genome-scale metabolic model would be an accelerator for this fungus becoming a universal chassis for biomanufacturing. Here we present a genome-scale metabolic model for M. thermophila constructed using an auto-generating pipeline with consequent thorough manual curation. Temperature plays a basic and critical role for the microbe growth. we are particularly interested in the genome wide response at metabolic layer of M. thermophilia as it is a thermophlic fungus. To study the effects of temperature on metabolic characteristics of M. thermophila growth, the fungus was cultivated under different temperature. The metabolic rearrangement predicted using context-specific GEMs integrating transcriptome data.The developed model provides new insights into thermophilic fungi metabolism and highlights model-driven strain design to improve biotechnological applications of this thermophilic lignocellulosic fungus.

2022-09-14 | GSE184074 | GEO

Development of a glucoamylase hyper-production platform in thermophilic fungus Myceliophthora thermophila via the rational redesigning and engineering manipulation

Project description:The development of proteins hyper-production platform in thermophilic fungus Myceliophthora thermophila is essential for both molecular basis understanding and industrial process. Herein the glucoamylase hyper-production strain MtGM12 was generated from our previously strain MtYM6 via genetically engineering. Transcriptional profiling analyses revealed that the amylolytic gene expression levels were significantly up-regulated in the MtGM12 than in MtWT.

2023-08-21 | GSE227646 | GEO

Weimberg pathway an alternative for utilization of D-xylose for Myceliophthora thermophila

Project description:An alternative for utilization of D-xylose, the non-phosphorylative Weimberg pathway was established in M. thermophila. Changes in transcript levels were surveyed in mutants. Transcriptome analysis revealed that the D-xylose dehydrogenase gene was significantly upregulated after deletion of D-xylose reductase when cultured in D-xylose media. Besides, genes belong to ribosome, biosynthesis of amino acids, biosynthesis of cofactors and carbon metabolism involved in growth were enriched in strains containing Weimberg pathway.

2023-02-01 | GSE214002 | GEO

Transcriptomic response to substrate and temperature in two thermophilic fungi, Myceliophthora thermophila and Thielavia terrestris, and a related mesophile, Chaetomium globosum

2011-08-08 | GSE27323 | GEO

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