Butyrivibriospp. and Other Xylanolytic Microorganisms From the Rumen have Cinnamoyl Esterase Activity

McSweeney, Christopher S.; Dulieu, A.; Bunch, R. J.

doi:10.1006/anae.1997.0130

Cited by 29 publications

(25 citation statements)

References 24 publications

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“…This suggests that in nature these cellulolytic species utilize xylanases and pectinases primarily as tools to gain access to cellulose; i.e., they have sacrificed a reasonably abundant energy source (xylan or pectin) in exchange for an opportunity to exploit an even more abundant energy source (cellulose) that is utilizable by fewer competitors. Enzymatic cleavage of cell wall linkages between cinnamic acid and arabinoxylans by Ruminococcus albus and Butyrivibrio fibrisolvens has been proposed as another example of an activity whose primary function is to enhance accessibility of an organism to cellulose (435).…”

Section: Ecological Aspects Of Cellulose-degrading Communitiesmentioning

confidence: 99%

Microbial Cellulose Utilization: Fundamentals and Biotechnology

Lynd

Weimer

Zyl³

et al. 2002

Microbiol Mol Biol Rev

4,047

2,868

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Fundamental features of microbial cellulose utilization are examined at successively higher levels of aggregation encompassing the structure and composition of cellulosic biomass, taxonomic diversity, cellulase enzyme systems, molecular biology of cellulase enzymes, physiology of cellulolytic microorganisms, ecological aspects of cellulase-degrading communities, and rate-limiting factors in nature. The methodological basis for studying microbial cellulose utilization is considered relative to quantification of cells and enzymes in the presence of solid substrates as well as apparatus and analysis for cellulose-grown continuous cultures. Quantitative description of cellulose hydrolysis is addressed with respect to adsorption of cellulase enzymes, rates of enzymatic hydrolysis, bioenergetics of microbial cellulose utilization, kinetics of microbial cellulose utilization, and contrasting features compared to soluble substrate kinetics. A biological perspective on processing cellulosic biomass is presented, including features of pretreated substrates and alternative process configurations. Organism development is considered for “consolidated bioprocessing” (CBP), in which the production of cellulolytic enzymes, hydrolysis of biomass, and fermentation of resulting sugars to desired products occur in one step. Two organism development strategies for CBP are examined: (i) improve product yield and tolerance in microorganisms able to utilize cellulose, or (ii) express a heterologous system for cellulose hydrolysis and utilization in microorganisms that exhibit high product yield and tolerance. A concluding discussion identifies unresolved issues pertaining to microbial cellulose utilization, suggests approaches by which such issues might be resolved, and contrasts a microbially oriented cellulose hydrolysis paradigm to the more conventional enzymatically oriented paradigm in both fundamental and applied contexts

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Section: Ecological Aspects Of Cellulose-degrading Communitiesmentioning

confidence: 99%

Microbial Cellulose Utilization: Fundamentals and Biotechnology

Lynd

Weimer

Zyl³

et al. 2002

Microbiol Mol Biol Rev

4,047

2,868

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show abstract

“…It is supposed that the ester linkages between these phenolic acids and polysaccharides provide a steric hindrance to the degradation of fibre by rumen microbiota. Consequently, the promotion of B. fibrisolvens, that possesses ferulic and p-coumaric acid esterases which hydrolyze these ester linkages [146] appears particularly interesting.…”

Section: Modes Of Action On Rumen Microbiotamentioning

confidence: 99%

Use of Yeast Probiotics in Ruminants: Effects and Mechanisms of Action on Rumen pH, Fibre Degradation, and Microbiota According to the Diet

Chaucheyras‐Durand¹,

Chevaux²,

Martin³

et al. 2012

Probiotic in Animals

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“…Cinnamoyl esterases have commonly been found in rumen and soil saprophytic microorganisms (6,7,16) and also in bacteria from human and animal intestinal microbiota (5,32). However, very few reports describing cinnamoyl esterases of food-associated bacteria are available (6).…”

mentioning

confidence: 99%