An extremely thermostable cellulase from the thermophilic eubacterium Rhodothermus marinus

Article Abstract:

An extracellular endo-beta-1,4-glucanase purified from Rhodothermus marinus is the most thermostable endocellulase that retains 50% of its activity after 3.5 hrs at 100 degree celsius and 80% after 16 hrs at 90 degree celsius. It is active on carboxymethyl cellulose, the hydrolysis products of which are glucose, cellobiose, cellotriose, cellopentaose mixture and oligosaccharides. This indicates that the cellular polymer is attacked by the enzyme in a random manner. The enzyme also shows glucosyltransferase activity.

Physiological aspects, Enzymes, Bacteria, Thermophilic, Microbiology, Cellulose, Thermophiles

---

Investigation of the microbial ecology of intertidal hot springs by using diversity analysis of 16S rRNA and chitinase genes

Article Abstract:

The microbial diversity of intertidal hot springs on the seashore of northwest Iceland was examined by combining directed in situ enrichments, artificial support colonization, and mat sampling. Analysis of 16S rRNA genes revealed the presence of clones related to both marine and terrestrial, thermophilic, mesophilic, and psychrophilic microorganisms scattered among 11 bacterial divisions.

Science & research, Biological diversity, Biodiversity, Microbial ecology

---

Influence of sulfide and temperature on species composition and community structure of hot spring microbial mats

Article Abstract:

Research has been conducted on the bacterial sulfur mats from sulfide-rich hot springs. The cloning and sequencing of the rRNA genes in investigating microbial diversity of one sulfur mat hot spring is described.

Sweden, Statistical Data Included, Analysis, Microbial mats, Cloning, Sulfides, Microbiological research

Similar abstracts:

• Abstracts: Properties of a novel thermostable glucoamylase from the hyperthermophilic archaeon Sulfolobus solfataricus in relation to starch processing
• Abstracts: Altered patterns of cellular growth, morphology, replication and division in conditional-lethal mutants of the thermophilic archaeon Sulfolobus acidocaldarius
• Abstracts: Molecular ecological analysis of the succession and diversity of sulfate-reducing bacteria in the mouse gastrointestinal tract
• Abstracts: Use of an intelligent control system to evaluate multiparametric effects on iron oxidation by thermophilic bacteria
• Abstracts: An autoregulatory cascade of EGF receptor signaling patterns the Drosophila egg. A family of rhomboid-like genes: Drosophila rhomboid-1 and roughoid/rhomboid-2 cooperate to activate EGF receptor signaling

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.