8 Ergebnisse
Sources of carbohydrate nutrition such as sucrose, glucose, and galactose, with the exception of arabinose, were shown to influence positively callus growth and polysaccharide (pectin silenan and acidic arabinogalactan) biosynthesis. Galactose was found to cause a stimulatory effect on yield and
Pectin-calcium gels obtained based on pectins of callus cultures are able to adhere to the surface of cells of Gram-positive bacteria Bacillus subtilis to various degrees and this is thanks to the structural features of pectin. Rapid adhesion of the cells to gels obtained from the pectin of
The development of male organs is induced in female flowers of the dioecious plant Silene latifolia by infection with the fungus Microbotryum violaceum. Stamens in a healthy female flower grow only to stage 6, whereas those in an infected female flower develop to the mature stage (stage 12), at
Previous results have demonstrated that extracts derived from maturing male sex organs of Chara tomentosa are capable of inducing profound structural and functional effects upon M-phase cells in the primary root meristems of Melandrium noctiflorum and Allium cepa. Evident changes produced by a
The peptide-N4-(N-acetylglucosaminyl) asparagine amidase (PNGase Se) earlier described [Lhernould S., Karamanos Y., Bourgerie S., Strecker G., Julien R., Morvan H. (1992) Glycoconjugate J 9:191-97] was partially purified from cultured Silene alba cells using affinity chromatography. The enzyme is
Pectin-protein fraction SVC was isolated from the callus culture of the bladder campion (Silene vulgaris). The main components in it were residues of D-galacturonic acid, galactose, arabinose, rhamnose, and protein. Using ion-exchange chromatography, ultrafiltration, and acid and enzymatic
The cultivation of Silene vulgaris (M.) G. callus culture on the nutrient mediums contained carbohydrates, phytohormones, nitrogen, and phosphate has led to the modification of the arabinogalactane structure from the cell walls. It was noticed that a sucrose concentration increase in the cultivation
A series of phytoecodysteroids, including alpha-ecdysone, 2-deoxy-alpha-ecdysone, and 2-deoxyecdysterone isolated from Silene praemixta, integristerone A and ecdysterone isolated from Rhaponticum carthamoides and 22-acetylcyasterone and turkesterone isolated from Ajuga turkestanica, exhibit a