In this study, it was aimed to investigate the effects of salinity, which is an important environmental problem, in cultivation ornamental plants (such as zinnia) and irrigation with high salt water, especially on antioxidant defense mechanism. For purpose, two Zinnia species were irrigated by different concentrations saline water (50, 100, 150, 200 mM NaCl); salinity superoxide dismutase (SOD)...

Conditioned medium from mesophyll cell-suspension cultures of Zinnia eregans 1. has striking effects on cell expansion and tracheary element differentiation when applied to cultures of freshly isolated mesophyll cells. These effects include (a) induction of early cell expansion, (b) delay in differentiation by 48 h or more, (c) reduction in the synchrony of differentiation, and (d) early format...

To determine whether proteasome activity is required for tracheary element (TE) differentiation, the proteasome inhibitors clasto-lactacystin beta-lactone and carbobenzoxy-leucinyl-leucinyl-leucinal (LLL) were used in a zinnia (Zinnia elegans) mesophyll cell culture system. The addition of proteasome inhibitors at the time of culture initiation prevented differentiation otherwise detectable at ...

Vascular tissue in plants is unique due to its diverse and dynamic cellular patterns. Through research in several organisms, such as Arabidopsis, Populus and Zinnia, using biochemical, genetic and genomic approaches, significant progress has recently been made in revealing the molecular nature of several signals underlying the patterning of vascular tissue. These signals include ligands, recept...

the effect of electromagnetic field was examined on zinnia (zinnia elegans) seeds to enhance seed germination and early growth. the seeds were exposed to four magnetic strengths of 15, 100, 400 and 800 mt in four durations of 30, 60, 120 and 240 min. the experiments were carried out in two forms of laboratory germination and soil emergence. results showed that magnetic field application enhance...

Zinnia elegans constitutes one of the most useful model systems for studying xylem differentiation, which simultaneously involves secondary cell wall synthesis, cell wall lignification, and programmed cell death. Likewise, the in vitro culture system of Z. elegans has been the best characterized as the differentiation of mesophyll cells into tracheary elements allows study of the biochemistry a...

Changes in the enzymatic activity of cinnamyl alcohol dehydrogenase (CAD) and in the expression of a gene for CAD during tracheary element (TE) differentiation were investigated in cultures of single cells isolated from the mesophyll of zinnia (Zinnia elegans). In cultures in which TE differentiation was induced (TE-inductive cultures), CAD activity increased from h 36 after the start of cultur...