Претраживање
Приказ резултата 1-10 од 12
The effect of anoxia on PolyP content of Phycomyces blakesleeanus mycelium studied by P-31 NMR spectroscopy
(New York Acad Sciences, New York, 2005)
The effect of anoxia and the respiratory chain inhibitors azide and cyanide on the polyphosphate content of Phycomyces was studied by in vivo (31)p NMR spectroscopy. Anoxia was manifested by a decrease of core polyphosphates ...
Modeling of the migration of the European glass eel
(New York Acad Sciences, New York, 2005)
The characteristics of glass eel migration at the mouth of river Bojana have been investigated by seasonal field studies from February to April 1998. Samples were collected by two fyke nets, one on each riverside, for 12 ...
Characterization of enzymatically synthesized diferulate
(New York Acad Sciences, New York, 2005)
Horseradish peroxidase was used to synthesize diferulates by a procedure in which ethyl ferulate was used as substrate. Four different forms were obtained, of which two dominant were the 5-5' and 8-5' diferulate. Fluorescence ...
Changes in Chenopodium rubrum seeds with aging
(New York Acad Sciences, New York, 2005)
We studied antioxidative system, germination, growth, and flowering in vitro in Chenopodium rubrum seeds of different ages. Peroxidase, superoxide dismutase, and catalase activity, as well as glutathione status, were ...
New insights into the structural organization of the plant polymer lignin
(New York Acad Sciences, New York, 2005)
The organizational features of lignin structure and the mechanism of its synthesis have significant implications for the response of the plant to stress. It was unknown whether the enzymic formation of lignin in the cell ...
P-31 NMR spectroscopy and polarographic combined study of erythrocytes treated with 5-fluorouracil - Cardiotoxicity-related changes in ATP, 2,3-BPG, and O-2 metabolism
(New York Acad Sciences, New York, 2005)
Antineoplastic drug 5-fluorouracil (5-FU) frequently shows cardiotoxic effects, the mechanism of which has not yet been elucidated. The objective of the present study was to explore effects of 5-FU on metabolism of ATP, ...
Ascorbic acid and the oxidative processes in pea root cell wall isolates - Characterization by fluorescence and EPR spectroscopy
(New York Acad Sciences, New York, 2005)
A comparative fluorescence and oxygen radical-sensitive spin trap EPR spectroscopic study of isolated cell walls (with proteins or deproteinated), in the presence and absence of ascorbate and H2O2 is presented. Fluorescence ...
Influence of photic environment on the form of the fish electroretinographic off-response
(New York Acad Sciences, New York, 2005)
Scotopic electroretinogram of dogfish shark (Scylliorhinus canicula) and eel (Anguilla anguilla) is characterized by a negative off-response, changing in sign under photopic condition. It increased under the effect of ...
Mycorrhiza formation enhances adaptive response of hybrid poplar to drought
(New York Acad Sciences, New York, 2005)
Mycorrhized and nonmycorrhized plants of hybrid poplar (Populus tremula L. x Populus tremuloides Mich) were cultivated in petri dishes until the amount of water became limiting (detected by a decrease of photosynthetic ...
Photopic vision in eels - Evidences of color discrimination
(New York Acad Sciences, New York, 2005)
Several classes of second-order retinal neurons have been studied electrophysiologically in European eel (Anguilla anguilla) from two different localities, Lake Seliger in Russia and the coastal waters of the Adriatic Sea ...