+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Glycerol and water effects on x-ray sensitivity in Staphylococcus aureus

, : Glycerol and water effects on x-ray sensitivity in Staphylococcus aureus. Radiation Research 18: 607-619

The variation of X-ray sensitivity of Staphylococcus aureus was studied over a range of glycerol concentrations to 95%. The relationship followed closely that described by the Langmuir adsorption equation. Extrapolation of this relationship to infinite glycerol concentration gives values of less than one-twentieth of the sensitivity of the cells in phosphate buffer. The results are not consistent with glycerol acting primarily either to prevent the oxygen-enhancement effect or by protection through the simple removal of water from the cells. Simple dehydration of this organism does not decrease X-ray sensitivity, provided a protective agent is not added before drying. It is proposed that protection by glycerol occurs through the adsorption of glycerol on sites usually occupied by water at the surface of important macro-molecules within the cell.


PMID: 13999341

DOI: 10.2307/3571402

Other references

Martin, J.W.; Jourharzadeh, P.; Fitterer, P.H., 1998: Description and comparison of major foregut ossicles in hydrothermal vent crabs. Major foregut (gastric mill) ossicles, including the dorsal median tooth, lateral teeth, accessory lateral teeth, and cardiopyloric valve, of hydrothermal vent crabs were dissected and examined during the summer of 1996 from specimens housed at th...

McNeil, E.; Gunas, H.; Koroshetz, W., 2014: The future of neuroscience clinical trials. JAMA Neurology 71(5): 652-652

Lares, M.; Perez, E., 1997: Chemical composition and rheological properties of modified zulu starch. Cereal Foods World 42(8): 638

Tsironis, G.P., 2003: If "discrete breathers" is the answer, what is the question?. Intense work on discrete breathers or intrinsic localized modes in recent years has revealed a wealth of new properties of classical energy localization. Relaxation and mobility in particular may be two of the critical links with biomolecular proc...

Coley, P.D.; Kursar, T.A., 2003: Drug discovery as a conservation tool in Panama The use of ecological insight. Ecological Society of America Annual Meeting Abstracts 88: 69

Slattery, E.; Rumore, M.M.; Douglas, J.S.; Seres, D.S., 2015: 3-in-1 vs 2-in-1 parenteral nutrition in adults: a review. Parenteral nutrition (PN) provides a means of nourishment for patients in whom oral or enteral nutrition is not possible or practical. Initial formulations consisted of carbohydrates (dextrose), amino acids, vitamins, trace minerals, electrolytes,...

Ruban, M.E., 1968: Development problems of Soviet agriculture. Three phases in the development of USSR agriculture are distinguished: (1) dispossession of large landowners from 1917-28; (2) compulsory collectivization from 1909-52; and (3) the new economic and agricultural policy after 1953. The aim is to gua...

Schäfer, K.; Bader, M.; Gretz, N.; Oberbäumer, I.; Bachmann, S., 1994: Focal overexpression of collagen IV characterizes the initiation of epithelial changes in polycystic kidney disease. Changes of extracellular matrix are involved in the pathogenesis of autosomal dominant polycystic kidney disease (ADPKD). The relationship between epithelial changes and extracellular matrix production was studied in a new rat model (Han:SPRD/cy+)...

Cooper, W.E.; Brodie, B.B., 1963: A comparison of Fusarium-wilt of cotton varieties with root-knot and sting nematodes as predisposing agents. Observations were made on 19 varieties and selections in 1959 and on 24 in 1960, grown on fields infested with (1) Meloidogyne incognita + Fusarium oxysporum f. vasinfectum and (2) Belonolaimus longicaudatus + F. oxysporum f, vasinfectum. Analysis...

Movila, A.; Rolain, J-M.; Podavalenko, A.; Toderas, I.; Tkachenco, L.; Naglov, V.; Raoult, D., 2010: Detection of spotted fever group rickettsiae and family Anaplasmataceae in Ixodes ricinus ticks from Republic of Moldova and Eastern Ukraine. Cell invasion by the intracellular parasite Toxoplasma gondii occurs through an active process that involves dynamic events, such as gliding motility and conoid extrusion, followed by a sequential secretion from specialized secretory organelles. I...