Relationship between the intracellular integrity and the morphology of the capsular envelope in attached and free-living marine bacteria

Article Abstract:

The capsular envelope that surrounds the marine bacterial cells decreases with decreasing integrity of the internal structures in attached and free-living marine bacteria. Intact bacterial cells are fully covered by the capsular envelope, whereas empty bacterial cells have only the cell wall with no envelope. In marine-snow associated bacterial community, 95% of the intact cells have a capsular envelope and 55% of the empty cells have no capsule. In the marine free-living bacterial community, the corresponding figures are 65% and 80%, respectively.

Bacteria, Morphology (Biology), Marine microbiology

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Purification, characterization, and molecular analysis of thermostable cellulases CelA and CelB from Thermotoga neapolitana

Article Abstract:

A study was conducted to characterize a couple of cellulase components from a marine hyperthermophile, Thermotoga neopolitana. The molecular masses of the enzymes were obtained using sodium dodecyl sulfate while polysaccharase activity was determined through the release of reducing sugars by the Somogyi-Nelson technique. Results indicated that the cellulase components may be determined as a polycistronic mRNA. Findings also suggested cellobiose correlated with cellulase production in Trichoderma reesei and in Thermomonospora fusca.

Molecular dynamics, Plant biomass

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Assesing the diversity of marine bcterial beta-glucosidases by capillary electrophoresis zymography

Article Abstract:

Researchers estimate the amount of bacterial beta-glucosidase in the ocean may be much higher than is commonly believed. This conclusion is based on analysis of water samples using substrate-incorporated capillary electrophoresis zymography.

Usage, Electrophoresis

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