Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Lucien Ledoux"'
Autor:
Arthur W. Galston
Publikováno v:
Science. 191:1044-1044
Autor:
Lucien Ledoux
Mankind, throughout history, has strived to improve his food sources. By means of slow and empirical selections, it has been possible to greatly increase both quantity and quality of plant crops. This procedure has brought the most useful cereals to
Autor:
Michel Jacobs, J. P. Schlösser, R. Huart, A. Ryngaert-Adriaensens, Lucien Ledoux, René-Fernand Matagne
Publikováno v:
Canadian Journal of Genetics and Cytology. 21:515-523
Fourteen corrected strains previously obtained by treating three thiamine mutants of Arabidopsis thaliana (L.) Heynh. with bacterial DNA were analysed for phenotypic expression in various culture conditions and for genetic behavior in outcrosses. Thr
Publikováno v:
Experimental Cell Research. 9:338-347
Resume Des œufs d'amphibiens en voie de segmentation, ont ete soumis a des micro-injections d'urease, de ribonuclease active ou inactivee par oxydation. La ribonuclease reduite, seule, a montre une action inhibitrice nette sur la segmentation, a des
Publikováno v:
Biochimica et Biophysica Acta. 26:513-516
Resume La penetration de la ribonuclease dans les cellules d'ascites de la tumeur de Landschutz traitees in vitro s'accompagne d'une elevation importante du metabolisme des bases pyrimidiques de l'ARN; le metabolisme des bases puriques de l'ARN et ce
Autor:
Lucien Ledoux
Publikováno v:
Biochimica et biophysica acta, 14 (C
Chromatographic study (on amberlite IRC-50) of the homogeneity of preparations of ribonuclease shows that the various fractions that can be obtained correspond to different oxido-reduction states of the same protein edifice. These fractions are inter
Autor:
E. Sempińska, Lucien Ledoux
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis. 138:570-586
The fate of heterologous DNA microinjected into eggs of amphibians has been studied using the following methods: 1. 1. Fractionation on columns of centrifuged DEAE-cellulose paper pulp. 2. 2. Ultracentrifugation in CsCl gradient. 3. 3. Hybridization
Autor:
Lucien Ledoux
Publikováno v:
Biochimica et Biophysica Acta. 13:121-134
Resume 1. 1. Le glutathion reduit, le cyanure et le sulfite activent la ribonuclease Cette activation est due exclusivement aux proprietes oxydo-reductrices de ces substances. 2. 2. Le glutathion oxyde et l'acide iodosobenzoique inhibent au contraire
Publikováno v:
European Journal of Biochemistry. 23:96-108
It has been shown that when Arabidopsis seeds are incubated with different heteropycnic labelled DNA during the first 4 days of germinating, large fragments of exogenous DNA are taken up by the seedling plant tissues (cotyledons and rootlet) and rema
Publikováno v:
Experimental Cell Research. 17:218-226
Resume L'absorption de la ribonuclease par des cellules d'ascites et de moelle ossuese a ete suivie en mesurant l'activite enzymatique et la radioactivite de suspensions cellulaires incubees en presence de l'enzyme marque par l'iode 131 I. Nos experi