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Four Aromatic Intradiol Ring Cleavage Dioxygenases from Aspergillus niger.

Author(s): Semana P, Powlowski J

Ring cleavage dioxygenases catalyze the critical ring-opening step in the catabolism of aromatic compounds. The archetypal filamentous fungus Aspergillus niger previously has been reported to be able to utilize a range of monocyclic aromatic compounds as so...

Article GUID: 31540981
Characterization of active and inactive forms of the phenol hydroxylase stimulatory protein DmpM.

Author(s): Cadieux E, Powlowski J

Biochemistry. 1999 Aug 17;38(33):10714-22 Authors: Cadieux E, Powlowski J

Article GUID: 10451366
Biochemical and molecular characterization of a cellobiohydrolase from Trametes versicolor.

Author(s): Lahjouji K, Storms R, Xiao Z, Joung KB, Zheng Y, Powlowski J, Tsang A, Varin L

Appl Microbiol Biotechnol. 2007 May;75(2):337-46 Authors: Lahjouji K, Storms R, Xiao Z, Joung KB, Zheng Y, Powlowski J, Tsang A, Varin L

Article GUID: 17333176
A shared binding site for NAD+ and coenzyme A in an acetaldehyde dehydrogenase involved in bacterial degradation of aromatic compounds.

Author(s): Lei Y, Pawelek PD, Powlowski J

Biochemistry. 2008 Jul 01;47(26):6870-82 Authors: Lei Y, Pawelek PD, Powlowski J

Article GUID: 18537268
Analytical and computational approaches to define the Aspergillus niger secretome.

Author(s): Tsang A, Butler G, Powlowski J, Panisko EA, Baker SE

Fungal Genet Biol. 2009 Mar;46 Suppl 1:S153-S160 Authors: Tsang A, Butler G, Powlowski J, Panisko EA, Baker SE

Article GUID: 19618504
A molecular phylogeny of thermophilic fungi.

Author(s): Morgenstern I, Powlowski J, Ishmael N, Darmond C, Marqueteau S, Moisan MC, Quenneville G, Tsang A

Fungal Biol. 2012 Apr;116(4):489-502 Authors: Morgenstern I, Powlowski J, Ishmael N, Darmond C, Marqueteau S, Moisan MC, Quenneville G, Tsang A

Article GUID: 22483047
Transcriptome and exoproteome analysis of utilization of plant-derived biomass by Myceliophthora thermophila.

Author(s): Kolbusz MA, Di Falco M, Ishmael N, Marqueteau S, Moisan MC, Baptista CDS, Powlowski J, Tsang A

Fungal Genet Biol. 2014 Nov;72:10-20 Authors: Kolbusz MA, Di Falco M, Ishmael N, Marqueteau S, Moisan MC, Baptista CDS, Powlowski J, Tsang A

Article GUID: 24881579
mycoCLAP, the database for characterized lignocellulose-active proteins of fungal origin: resource and text mining curation support.

Author(s): Strasser K, McDonnell E, Nyaga C, Wu M, Wu S, Almeida H, Meurs MJ, Kosseim L, Powlowski J, Butler G, Tsang A

Database (Oxford). 2015;2015: Authors: Strasser K, McDonnell E, Nyaga C, Wu M, Wu S, Almeida H, Meurs MJ, Kosseim L, Powlowski J, Butler G, Tsang A

Article GUID: 25754864
Improvement in Saccharification Yield of Mixed Rumen Enzymes by Identification of Recalcitrant Cell Wall Constituents Using Enzyme Fingerprinting.

Author(s): Badhan A, Wang YX, Gruninger R, Patton D, Powlowski J, Tsang A, McAllister TA

Biomed Res Int. 2015;2015:562952 Authors: Badhan A, Wang YX, Gruninger R, Patton D, Powlowski J, Tsang A, McAllister TA

Article GUID: 26180803
Title:Improvement in Saccharification Yield of Mixed Rumen Enzymes by Identification of Recalcitrant Cell Wall Constituents Using Enzyme Fingerprinting.
Authors:Badhan A,  Wang YX,  Gruninger R,  Patton D,  Powlowski J,  Tsang A,  McAllister TA
Link:https://www.ncbi.nlm.nih.gov/pubmed/26180803?dopt=Abstract
DOI:10.1155/2015/562952
Category:Biomed Res Int
PMID:26180803
Dept Affiliation: GENOMICS
1 Agriculture and Agri-Food Canada, Lethbridge Research Centre, Lethbridge, AB, Canada T1H 4P4.
2 Centre for Structural and Functional Genomics, Concordia University, Montreal, QC, Canada H4B 1R6.

Description:

Improvement in Saccharification Yield of Mixed Rumen Enzymes by Identification of Recalcitrant Cell Wall Constituents Using Enzyme Fingerprinting.

Biomed Res Int. 2015;2015:562952

Authors: Badhan A, Wang YX, Gruninger R, Patton D, Powlowski J, Tsang A, McAllister TA

Abstract

Identification of recalcitrant factors that limit digestion of forages and the development of enzymatic approaches that improve hydrolysis could play a key role in improving the efficiency of meat and milk production in ruminants. Enzyme fingerprinting of barley silage fed to heifers and total tract indigestible fibre residue (TIFR) collected from feces was used to identify cell wall components resistant to total tract digestion. Enzyme fingerprinting results identified acetyl xylan esterases as key to the enhanced ruminal digestion. FTIR analysis also suggested cross-link cell wall polymers as principal components of indigested fiber residues in feces. Based on structural information from enzymatic fingerprinting and FTIR, enzyme pretreatment to enhance glucose yield from barley straw and alfalfa hay upon exposure to mixed rumen-enzymes was developed. Prehydrolysis effects of recombinant fungal fibrolytic hydrolases were analyzed using microassay in combination with statistical experimental design. Recombinant hemicellulases and auxiliary enzymes initiated degradation of plant structural polysaccharides upon application and improved the in vitro saccharification of alfalfa and barley straw by mixed rumen enzymes. The validation results showed that microassay in combination with statistical experimental design can be successfully used to predict effective enzyme pretreatments that can enhance plant cell wall digestion by mixed rumen enzymes.

PMID: 26180803 [PubMed - indexed for MEDLINE]