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Retraction notice to "Thermostable xylanases from thermophilic fungi and bacteria: Current perspective" [Bioresour. Technol. 277 (2019) 195-203]

Author(s): Chadha BS; Kaur B; Basotra N; Tsang A; Pandey A;

No abstract available

Article GUID: 39447502


Transcriptomics identify the triggering of citrate export as the key event caused by manganese deficiency in Aspergillus niger

Author(s): Fekete E; Bíró V; Márton A; Bakondi-Kovács I; Sándor E; Kovács B; Geoffrion N; Tsang A; Kubicek CP; Karaffa L;

For over a century, the filamentous Ascomycete fungus Aspergillus niger has played a pivotal role in the industrial production of citric acid. A critical fermentation parameter that sustains high-yield citric acid accumulation is the suboptimal concentration of manganese(II) ions in the culture b ...

Article GUID: 39377610


Comparative genomic analysis of thermophilic fungi reveals convergent evolutionary adaptations and gene losses

Author(s): Steindorff AS; Aguilar-Pontes MV; Robinson AJ; Andreopoulos B; LaButti K; Kuo A; Mondo S; Riley R; Otillar R; Haridas S; Lipzen A; Grimwood J; Schmutz J; Clum A; Reid ID; Moisan MC; Butler G; Nguyen TTM; Dewar K; Conant G; Drula E; Henri ...

Thermophily is a trait scattered across the fungal tree of life, with its highest prevalence within three fungal families (Chaetomiaceae, Thermoascaceae, and Trichocomaceae), as well as some members of the phylum Mucoromycota. We examined 37 thermophilic and thermotolerant species and 42 mesophil ...

Article GUID: 39266695


Developing endophytic Penicillium oxalicum as a source of lignocellulolytic enzymes for enhanced hydrolysis of biorefinery relevant pretreated rice straw

Author(s): Sharma G; Kaur B; Raheja Y; Kaur A; Singh V; Basotra N; Di Falco M; Tsang A; Chadha BS;

Endophytic fungi, as plant symbionts, produce an elaborate array of enzymes for efficient disintegration of lignocellulosic biomass into constituent monomeric sugars, making them novel source of lignocellulolytic CAZymes with immense potential in future biorefineries. The present study reports lignocellulolytic enzymes production potential of an endophyti ...

Article GUID: 39249151


Transcriptional and secretome analysis of Rasamsonia emersonii lytic polysaccharide mono-oxygenases

Author(s): Raheja Y; Singh V; Kumar N; Agrawal D; Sharma G; Di Falco M; Tsang A; Chadha BS;

The current study is the first to describe the temporal and differential transcriptional expression of two lytic polysaccharide monooxygenase (LPMO) genes of Rasamsonia emersonii in response to various carbon sources. The mass spectrometry based secretome analysis of carbohydrate active enzymes (CAZymes) expression in response to different carbon sources ...

Article GUID: 39167166


Expansion of Auxiliary Activity Family 5 sequence space via biochemical characterization of six new copper radical oxidases

Author(s): Fong JK; Mathieu Y; Vo MT; Bellemare A; Tsang A; Brumer H;

Bacterial and fungal copper radical oxidases (CROs) from Auxiliary Activity Family 5 (AA5) are implicated in morphogenesis and pathogenesis. The unique catalytic properties of CROs also make these enzymes attractive biocatalysts for the transformation of small molecules and biopolymers. Despite a recent increase in the number of characterized AA5 members, ...

Article GUID: 38953370


Genome and secretome insights: unravelling the lignocellulolytic potential of Myceliophthora verrucosa for enhanced hydrolysis of lignocellulosic biomass

Author(s): Sharma G; Kaur B; Singh V; Raheja Y; Falco MD; Tsang A; Chadha BS;

Lignocellulolytic enzymes from a novel Myceliophthora verrucosa (5DR) strain was found to potentiate the efficacy of benchmark cellulase during saccharification of acid/alkali treated bagasse by ~ 2.24 fold, indicating it to be an important source of auxiliary enzymes. The De-novo sequencing and analysis of M. verrucosa genome (31.7 Mb) revealed to encode ...

Article GUID: 38676717


Substrate specificity mapping of fungal CAZy AA3_2 oxidoreductases

Author(s): Zhao H; Karppi J; Mototsune O; Poshina D; Svartström J; Nguyen TTM; Vo TM; Tsang A; Master E; Tenkanen M;

Background: Oxidative enzymes targeting lignocellulosic substrates are presently classified into various auxiliary activity (AA) families within the carbohydrate-active enzyme (CAZy) database. Among these, the fungal AA3 glucose-methanol-choline (GMC) oxidoreductases with varying auxiliary activi ...

Article GUID: 38539167


A thermostable and inhibitor resistant β-glucosidase from Rasamsonia emersonii for efficient hydrolysis of lignocellulosics biomass

Author(s): Raheja Y; Singh V; Sharma G; Tsang A; Chadha BS;

The present study reports a highly thermostable ß-glucosidase (GH3) from Rasamsonia emersonii that was heterologously expressed in Pichia pastoris. Extracellular ß-glucosidase was purified to homogeneity using single step affinity chromatography with molecular weight of ~ 110 kDa. Intriguingly, the purified enzyme displayed high tolerance to inhibitors ma ...

Article GUID: 38470501


Comparative analysis of functional diversity of rumen microbiome in bison and beef heifers

Author(s): Nguyen TTM; Badhan AK; Reid ID; Ribeiro G; Gruninger R; Tsang A; Guan LL; McAllister T;

Ruminants play a key role in the conversion of cellulolytic plant material into high-quality meat and milk protein for humans. The rumen microbiome is the driver of this conversion, yet there is little information on how gene expression within the microbiome impacts the efficiency of this conversion process. The current study investigates gene expression ...

Article GUID: 38054735


Functional screening pipeline to uncover laccase-like multicopper oxidase enzymes that transform industrial lignins

Author(s): Sharan AA; Bellemare A; DiFalco M; Tsang A; Vuong TV; Edwards EA; Master ER;

Laccase-like multicopper oxidases are recognized for their potential to alter the reactivity of lignins for application in value-added products. Typically, model compounds are employed to discover such enzymes; however, they do not represent the complexity of industrial lignin substrates. In this work, a screening pipeline was developed to test enzymes si ...

Article GUID: 38000639


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