Zobrazeno 1 - 10
of 126
pro vyhledávání: '"H. Schraudolf"'
Autor:
H. Schraudolf
Publikováno v:
Protoplasma. 113:144-149
Metronidazole inhibits cell division in gametophytes of the fernAnemia phyllitidis without changing morphogenetic patterns. Simultaneously the sensitivity of the prothallia against gibberellins which substitute for the natural sexual pheromone “ant
Autor:
H. Schraudolf
Publikováno v:
Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences. 86:75-80
SynopsisEvolution of new forms of organisms must be accompanied by evolution of the informational processes which regulate the development of these new forms. During plant phylogeny, products of metabolism have become phytohormones through the evolut
Autor:
U. Richter, H. Schraudolf
Publikováno v:
Plant Systematics and Evolution. 129:291-297
An electron microscopical investigation of the cell walls in young antheridia ofPolypodium crassifolium andPlatycerium alcicorne confirms the classical developmental model as postulated byStrasburger and byKny. The structure of the basal cell walls,
Fatty acid composition of lipids from differentiated tissues and cell cultures of Euonymus europaeus
Autor:
H. Schraudolf, A.R. Gemmrich
Publikováno v:
Chemistry and Physics of Lipids. 26:259-264
The fatty acid patterns of Euonymus europaeus callus cultures and cell suspension cultures were analysed at the beginning of stationary growth phase and compared with those from the respective differentiated tissues. The lipid and fatty acid patterns
Autor:
I. Frauenkron, H. Schraudolf
Publikováno v:
Protoplasma. 98:131-138
The effect of concanavalin A upon colony formation inPediastrum boryanum andHydrodictyon reticulatum was tested. Cell aggregation and the development of the pattern specific cell shape are influenced in both species; moreover, inPediastrum the lectin
Autor:
A. Fischer, H. Schraudolf
Publikováno v:
Plant Science Letters. 14:199-203
Gametophytes of Anemia phyllitidis contain free cytokinins (1.1 μg kinetin-equivalents/g fresh wt.). Zeatin which is accompanied by its riboside and 2-isopentenyladenosine could be identified by TLC as the main active compounds.
Autor:
K. Legler, H. Schraudolf
Publikováno v:
Physiologia Plantarum. 22:312-318
Action of riboflavin, isoriboflavin and 2-thiouracil in the induction of 2-dimensional growth of fern prothallia.—The inhibition of cell division induced by 2-thiouracil in prothallia of Dryopteris filix-mas and Anemia phyllitidis is reversed by ri
Autor:
H. Schraudolf
Publikováno v:
Planta. 74:188-193
Helminthosporol, helminthosporic acid, dihydrohelminthosporic acid, and steviol have been tested for their ability to induce antheridium formation in Anemia phyllitidis. All helminthosporol derivatives posses a limited but real activity. Steviol prov
Autor:
A. Scamoni, P. Hanell, K. Doerner, K. Skiebe, J. Schöneich, W. Stahl, F. Scholz, F. Fabig, P. Hertwig, H. Schraudolf, null Freye, S. Danert, H. Grimm, Alfred Lein, F. Weiser, M. Gersch, K. Wuttky
Publikováno v:
Der Züchter. 33:58-64
Autor:
H. Schraudolf
Publikováno v:
Planta. 76:37-46
In Polypodium crassifolium, light controls the induction of antheridium formation in contrast to hormonal induction in other fern species.