In an attempt to elucidate the regulatory mechanism of vessel lignification, we isolated ZPO-C, a novel peroxidase gene of Zinnia elegans that is expressed specifically in differentiating tracheary elements (TEs). The ZPO-C transcript was shown to accumulate transiently at the time of secondary wall thickening of TEs in xylogenic culture of Zinnia cells. In situ hybridization indicated specific...

vii

Priming is one of the most common methods of improving seed quality. The aim of this experiment was to study the effects of hydroand osmopriming on the germination, vigour and hydrolytic enzymes (α-amylase, β-glucosidase, exopeptidase and lipases) activity of zinnia (Zinnia elegans Jacq.) seeds. Seeds of three cultivars: Jowita, Kirke and Orys, and Z. elegans fl.pl., a mixture of cultivars (Mix...

Phytosulfokine (PSK) is a sulfated peptide hormone required for the proliferation and differentiation of plant cells. Here, we characterize the physiological roles of PSK in transdifferentiation of isolated mesophyll cells of zinnia (Zinnia elegans 'Canary Bird') into tracheary elements (TEs). Transcripts for a zinnia PSK precursor gene, ZePSK1, show two peaks of expression during TE differenti...

Growth media have important effects on the development of ornamental plants. Many organic and inorganic materials are used in as growing (GM) The present study was carried out Atatürk University controlled greenhouses condition. In study, 11 different created with sand, soil, peat, perlite, coconut peat their mixtures were media. Mixing medium a volumetric basis (V:V), respectively: Mix 1: peat...

The characterization of in vitro xylogenic cultures of zinnia (Zinnia elegans) has led to major discoveries in the understanding of xylem formation in plants. We have constructed and characterized a subtractive library from zinnia cultures enriched in genes that are specifically expressed at the onset of secondary wall deposition and tracheary element (TE) programmed cell death. This Late Xylog...

Pathogen management commonly includes environmental regulation and sanitization. There are limited numbers of effective registered bactericides. In 3 years greenhouse trials, PostivaTM, a premix pydiflumetofen (6.9%) difenoconazole (11.5%), was tested for activity against xanthomonas leafspot geranium, zinnia, ficus bacterial wilt geranium caused by Ralstonia solanacearum. PostivaTM applied at ...

Abstract Growth regulators had a significant effect on the morphometric parameters of graceful zinnia, among which most effective was Epin-extra. Being treated twice with epibrassinolide, zinnia plants more saturated color range. Zircon (a drug from group hydroxycinnamic acids), as it turned out, lesser than The Mechta (in English translation Dream). Further in text this name will be used) vari...