Effect of exogenous cytokinins on dynamics of development and differentiation of infectious structures of the pathogen of wheat powdery mildew

Effect of some immunomodulators and zeatin on susceptibility of wheat to powdery mildew

“…Earlier, the author observed dose-response for cytokinin immunomodulation in the powdery mildew-wheat plant pathosystem, which had a resistance region flanked by two regions of increased susceptibility (Babosha, 2009(Babosha, , 2012. Similar cytokinin dose-response curves were obtained for the number of normal appressoria and for the size of halos induced by the powdery mildew fungi at the sites of entry (Babosha et al, 2009). Two metabolic processes with substrate inhibition connected in series were suggested to produce concentration curves of complex shape (Gurevich, 2001).…”

The Effect of Exogenous Phytohormones on Resistance of Wheat Calluses to <i>Tilletia caries</i> (D.C.) Tul. & C. Tul.

“…Besides, a wellknown basic function of cellular walls, their participation in the definition of the direction and speed of cell stretching, in the interaction of cells inside the tissue and identification of "strange" cells, pathogens, in particular, in the formation of water and ionic-binding properties of tissues, is now established. Then, it is interesting to understand, why in the plants of tobacco infected with tobacco mosaic virus, or in the wheat infected with the powdery mildew agent [28], the increase of the sizes of the intercellular space of mesophyll is observed, which accordingly, weakens the level of intercellular interaction in the defeated site of a leaf and promotes infection distribution. From the results received in this work, it is evident that defense action of ABA and cytokinines is connected with the reduction of the quantity of potentially defeated cells of a calli and with the initiation of formation of cell zones with organized growth.…”

Analyse der Verticillium longisporum induzierten Seneszenz und Transdifferenzierung in Arabidopsis thaliana

“…Mit Bremia lactucae (falscher Mehltau) infizierter und mit Cytokinin behandelter Salat zeigte eine deutliche Reduktion des Pilzwachstums (Prokopova et al, 2010). Auch Getreide-Mehltau (Erysiphe graminis) wird durch exogene Cytokinbehandlung in seiner Infektiösität drastisch inhibiert (Babosha et al, 2009). Ein direktes Zusammenspiel zwischen Cytokinin und Pathogenabwehr konnte von Choi et al (2010) Vegetationsphase gegeben und sie müssen bei mehrjährigen Pflanzen jährlich ersetzt werden (Lüttge et al, 2002).…”