✦ LIBER ✦

Influence of alterations in the purine ring on biological activity of cytokinins

✍ Scribed by Janina H. Rogozińska; Cornelis Kroon; Cornelis A. Salemink

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 463 KB
Volume: 12
Category: Article
ISSN: 0031-9422
DOI: 10.1016/0031-9422(73)85105-2

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Losses in biological activity during the

Losses in biological activity during the drying of cytokinin solutions

✍ K. G. M. Skene 📂 Article 📅 1976 🏛 Springer 🌐 English ⚖ 390 KB

The stability and biological activity of

The stability and biological activity of cytokinin metabolites in soybean callus tissue

✍ L. M. S. Palni; M. V. Palmer; D. S. Letham 📂 Article 📅 1984 🏛 Springer-Verlag 🌐 English ⚖ 856 KB

The activity, uptake and metabolism of cytokinin metabolites was determined in soybean (Glycine max (L.) Merr.) callus tissue. The following activity sequence was established: zeatin riboside (ZR) > zeatin (Z) > O-glucosides of Z, ZR and their dihydro derivatives > lupinic acid (an alanine conjugate

Influence of conformational flexibility

Influence of conformational flexibility on biological activity in cyclic astin analogues

✍ Gabriella Saviano; Ettore Benedetti; Rosanna Cozzolino; Antonia De Capua; Paolo 📂 Article 📅 2004 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 174 KB

## Abstract The astins, a family of natural antitumor cyclopeptides, from the roots of Aster tataricus, consist of a 16‐membered ring system containing uncoded amino acid residues. The backbone conformation, with a cis‐3,4‐dichlorinated proline residue, plays an important role in antineoplastic act

Influence of Pluronic® F68 on ceftazidim

Influence of Pluronic® F68 on ceftazidime biological activity in parenteral solutions

✍ Carolina Alves Dos Santos; Gabriel Borghesan Ribeiro; Marcos Camargo Knirsch; Ad 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 116 KB

β-Lactam antimicrobials are known to have a low concentration/therapeutic response. However, extending the period in which β-lactam are free in the plasma does directly influence therapeutic outcomes. The objective of this study was to evaluate the influence of Pluronic® F68 on the antimicrobial act

Lesch-Nyhan mutation: The influence of p

Lesch-Nyhan mutation: The influence of population density on purine phosphoribosyltransferase activities and exogenous purine utilization in monolayer cultures of skin fibroblasts

✍ Stephen Wood; Leonard Pinsky 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 603 KB

## Abstract In extracts of normal and Lesch‐Nyhan (LN) heterozygous skin fibroblast monolayer cultures, hypoxanthine‐guanine (H‐G) and adenine (A) phosphoribosyltransferase (PRT) activities are correlated. These activities vary concomitantly during the life cycle of a culture: Peak activities occur

Modification of the polar head group of

Modification of the polar head group of platelet-activating factor: Influence on the biological activity

✍ G. Ostermann; H.-P. Kertscher; A. Lang; U. Till 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 392 KB

Racemic analogues of platelet-activating factor and its lyso derivatives have been prepared in which one methyl of the trimethylammonium group has been replaced by ethyl, propyl, allyl, or carboxymethylene. The influence of chemical modification on the biological activity was assessed by measuring p