Zobrazeno 1 - 10
of 78
pro vyhledávání: '"J. Sahulka"'
Publikováno v:
IBM Systems Journal. 30:296-311
IBM Clustered FORTRAN is a combination of software and hardware that allows two IBM Enterprise System/3090™ (ES/3090™) multiprocessors to be physically connected as a cluster and allows FORTRAN jobs to execute in parallel across all of the proces
Autor:
J. Sahulka
Publikováno v:
Biologia Plantarum. 19:113-128
The effect of some ammonium salts on nitrate reductase (NR) level, onin vivo nitrate reduction and on nitrate content was followed in the presence of nitrate in the medium, under changing experimental conditions, in excisedPisum sativum roots, and th
Reevaluation of the 'in vitro' and 'in vivo' methods of nitrate reductase determination in pea roots
Autor:
J. Sahulka
Publikováno v:
Biologia Plantarum. 27:424-431
Nitrate consumption, nitrite production and nitrite loss were followed in the“in vitro” nitrate reductase (NR) assay mixtures with pea root extracts, and nitrite production in the “in vitro” NR assay was compared with anaerobic nitrite produc
Autor:
J. Sahulka, Ludmila Lisá
Publikováno v:
Biologia Plantarum. 20:359-367
Nitrate reductase (NR) induction is enhanced by exogenously supplied sucrose in excised pea roots exposed to both exogenous nitrate and exogenous nitrite. NR synthesis is preferentially supported by sugars transported to the cells at the moment, howe
Publikováno v:
Zeitschrift für Pflanzenphysiologie. 75:392-404
Summary The activities of NADH 2 dependent glutamate dehydrogenase (GDH) and nitrate reductase were followed in excised pea roots cultured in liquid medium with or without sucrose. Whilst the persistance of nitrate reductase activity in excised pea r
Autor:
J. Sahulka, L. Lisá
Publikováno v:
Canadian Journal of Botany. 59:1121-1127
Exogenous L-glutamine, the sodium salt of L-glutamic acid, and casamino acids do not decrease glutamine synthetase (GS) level in isolated pea (Pisum sativum L. cv. Jupiter and cv. Proteus) roots cultured with 20 g∙L−1 sucrose while L-glutamic aci
Autor:
J. Sahulka
Publikováno v:
Biologia Plantarum. 20:201-209
The effect was studied of chloride ions, added in the form of different salts, on nitrate reductase (NR) level in excised pea roots, on anaerobic nitrite production in an assay medium lacking both nitrate and n-propanol, on nitrate content in the roo
Autor:
J. Sahulka, Alena Gaudinová
Publikováno v:
Zeitschrift für Pflanzenphysiologie. 78:13-23
Summary The addition of acids to the nutrient medium and the increase in the concentration of hydrogen ions in the external medium and within the roots therein obviously the determining factor causes an increase in GDH activity in excised pea roots.
Autor:
J. Sahulka, L. Lisá
Publikováno v:
Biochemie und Physiologie der Pflanzen. 174:653-659
Summary Exogenously supplied inorganic acids depress GS level in isolated pea roots cultivated in media containing sucrose but do not enhance the decrease in GS level caused by sugar starvation. The negative influence in sugar-supplied roots is not p
Publikováno v:
Biologia Plantarum. 27:445-450
Exposure of isolated pea roots to 0.5 and 2.0 mM nitrite resulted in a temporary decrease in glutamine synthetase (GS) level. The GS level decrease was preceded by a temporary increase in NO2- content: nitrite content maximum was observed after 6 h e