Plant cell wall polysaccharide-degrading enzymes of Melanoplus bivittatus

1969 ◽  
Vol 15 (12) ◽  
pp. 2273-2283 ◽  
Author(s):  
Kenneth W. Talmadge ◽  
Peter Albersheim
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cell Wall Polysaccharide ◽  
Degrading Enzymes

scholarly journals Aspergillus Enzymes Involved in Degradation of Plant Cell Wall Polysaccharides

2001 ◽  
Vol 65 (4) ◽  
pp. 497-522 ◽  
Author(s):  
Ronald P. de Vries ◽  
Jaap Visser
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Current Knowledge ◽  
Wide Spectrum ◽  
Structural Characteristics ◽  
Attractive Alternative ◽  
Cell Wall Polysaccharide ◽  
Cell Wall Polysaccharides ◽  
Degrading Enzymes

SUMMARY Degradation of plant cell wall polysaccharides is of major importance in the food and feed, beverage, textile, and paper and pulp industries, as well as in several other industrial production processes. Enzymatic degradation of these polymers has received attention for many years and is becoming a more and more attractive alternative to chemical and mechanical processes. Over the past 15 years, much progress has been made in elucidating the structural characteristics of these polysaccharides and in characterizing the enzymes involved in their degradation and the genes of biotechnologically relevant microorganisms encoding these enzymes. The members of the fungal genus Aspergillus are commonly used for the production of polysaccharide-degrading enzymes. This genus produces a wide spectrum of cell wall-degrading enzymes, allowing not only complete degradation of the polysaccharides but also tailored modifications by using specific enzymes purified from these fungi. This review summarizes our current knowledge of the cell wall polysaccharide-degrading enzymes from aspergilli and the genes by which they are encoded.

Cotton Plant Cell Wall Polysaccharide-Degrading Enzymes of the Boll Weevil1

1970 ◽  
Vol 63 (5) ◽  
pp. 1712-1714 ◽  
Author(s):  
Kenneth Talmadge ◽  
Peter Albershelm ◽  
Norman W. Earle
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Cotton Plant ◽  
Plant Cell Wall ◽  
Cell Wall Polysaccharide ◽  
Degrading Enzymes

scholarly journals PUL-Mediated Plant Cell Wall Polysaccharide Utilization in the Gut Bacteroidetes

2021 ◽  
Vol 22 (6) ◽  
pp. 3077
Author(s):  
Zhenzhen Hao ◽  
Xiaolu Wang ◽  
Haomeng Yang ◽  
Tao Tu ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Cell Wall ◽  
Microbial Community ◽  
Gut Microbiota ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cell Wall Polysaccharide ◽  
Prominent Feature ◽  
Cell Wall Polysaccharides ◽  
Gut Microbial Community

Plant cell wall polysaccharides (PCWP) are abundantly present in the food of humans and feed of livestock. Mammalians by themselves cannot degrade PCWP but rather depend on microbes resident in the gut intestine for deconstruction. The dominant Bacteroidetes in the gut microbial community are such bacteria with PCWP-degrading ability. The polysaccharide utilization systems (PUL) responsible for PCWP degradation and utilization are a prominent feature of Bacteroidetes. In recent years, there have been tremendous efforts in elucidating how PULs assist Bacteroidetes to assimilate carbon and acquire energy from PCWP. Here, we will review the PUL-mediated plant cell wall polysaccharides utilization in the gut Bacteroidetes focusing on cellulose, xylan, mannan, and pectin utilization and discuss how the mechanisms can be exploited to modulate the gut microbiota.

scholarly journals Biological Function(s) and Application (s) of Pectin and Pectin Degrading Enzymes

2018 ◽  
Vol 15 (1) ◽  
pp. 87-100 ◽  
Author(s):  
Puja Chandrayan
Keyword(s):  
Cell Wall ◽  
Structure Function ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Plant Defence ◽  
Glycoside Hydrolases ◽  
Limited Information ◽  
Thermostable Enzymes ◽  
Network Cell ◽  
Degrading Enzymes

Pectin is an integral part of plant cell wall and since centuries pectin extracted from plants is widely used in food and fruit juice processing. Moreover, in last half century, the applications have also invaded into many bio-processing applications such as pharmaceutical, bioenergy, textile, paper and tea processing. In these growing industries, the use of pectinases has grown with a significant amount i.e. approximately 10 % of total global enzyme market comes from pectinases. Herein comprehensive analyses of information related to structure and function of pectin in plant cell wall as well as structural classes of pectins have been discussed. The major function of pectin is in cementing the cellulose and hemicelluloses network, cell-cell adhesion and plant defence. Keeping the wide use of pectin in food industry and growing need of environment friendly technology for pectin extraction has accelerated the demand of pectin degrading enzymes (PDEs). PDEs are from three enzyme classes: carbohydrate esterases from CE8 and CE12 family, glycoside hydrolases from GH28 family and lyases from PL1, 2, 3, 9 and 10. We have reviewed the literature related to abundance and structure-function of these abovementioned enzymes from bacteria. From the current available literature, we found very limited information is present about thermostable PDEs. Hence, in future it could be a topic of study to gain the insight about structure-function of enzymes together with the expanded role of thermostable enzymes in development of bioprocesses based on these enzymes.

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