منابع مشابه
Marine bivalve geochemistry and shell ultrastructure
Marine bivalve geochemistry and shell ultrastructure from modern low pH environments S. Hahn, R. Rodolfo-Metalpa, E. Griesshaber, W. W. Schmahl, D. Buhl, J. M. Hall-Spencer, C. Baggini, K. T. Fehr, and A. Immenhauser Institute of Geology, Mineralogy and Geophysics, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany Marine Institute, Marine Biology and Ecology Research Centre,...
متن کاملImproved ultrastructure of marine invertebrates using non-toxic buffers.
Many marine biology studies depend on field work on ships or remote sampling locations where sophisticated sample preservation techniques (e.g., high-pressure freezing) are often limited or unavailable. Our aim was to optimize the ultrastructural preservation of marine invertebrates, especially when working in the field. To achieve chemically-fixed material of the highest quality, we compared t...
متن کاملIsolation, characterization, and ultrastructure of the peptidoglycan layer of a marine pseudomonad.
The peptidoglycan layer of a marine pseudomonad was observed by electron microscopy in thin sections of plasmolyzed intact cells and mureinoplasts but not in untreated intact cells. Only fragments of this layer could be isolated by sodium lauryl sulfate (SLS) treatment of mureinoplast envelopes. Sacculus-like peptidoglycan structures were obtained from growing cells by immediate heat inactivati...
متن کاملToxinology of Venomous Marine Worms; A Review
Although the widespread distribution of venomous marine worms around the world, the structural and toxinologcal studies of their toxins are still limited.This study was aimed to evaluate the toxicity of poisonous marine worms. Touching the cilium of Chloeia flava and Sipuncula marine worms cause painful inflammation of the skin. Many species of nemertines prey their victims by a flexible prob...
متن کاملThiosulphate Oxidation in Thiobacillus
bacterium Thiobacillus X. A fifth fraction (acidic fraction) contained two additional cytochrome components with x bands at 550 and 557 msi respectively in the reduced state. 2. All the cytochromes appear to be ofthe c type, are labile to heat and acid and do not combine with carbon monoxide. They are auto-oxidizable to varying degrees. 3. Cytochromes 550 (1) and 557 (1) are basic, and are adso...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1974
ISSN: 0022-1287
DOI: 10.1099/00221287-85-1-130