The expression of many different genes is regulated by ABA and osmotic stress (Skriver and Mundy, 1990). These genes and their products have been characterized in severa1 plants, and they include dehydrins in barley, corn (Close et al., 1989), and Arabidopsis thaliana (Rouse et al., 1992); proteins responsive to ABA (RAB) in rice (Mundy and Chua, 1988; Yamaguchi-Shinozaki et al., 1989); TAS and...

A cDNA clone encoding cytochrome c of Stellaria longipes was isolated and characterized. The nucleotide and predicted amino acid sequences were highly similar to those from other plant, fungal, and animal species. No significant polymorphism was observed among different genotypes (ecotypes). The S. longipes genome contained a low copy number of nucleotide sequences of cytochrome c. The gene exp...

We investigated the effects of organic and conventional pest and fertility management on weed cover and the seed bank community in an organic rotation. The study was conducted during the 4th and 5th years of an organic rotation on part of a long term organic-conventional comparison trial. Results showed that although crop type (potato vs. cabbage) in a single year significantly affected wee...

Die Möglichkeit einer Differenzierung zwischen dikotylen (Betula vulgaris, Galium aperine, Cirsium arvensis, Stellaria media, Viola arvensis) und monokotylen (Triticum aestivum, Poa annua, Apera spica-venti, Alopecurus myosuroides) Pflanzenarten anhand ihrer LIF-Parameter von der Blattoberund Unterseite wurde geprüft. Diskriminanzanalyse anhand von Fluoreszenzmessungen der Blattoberseite ergab ...

A series of novel 5-(4-hydroxybenzyl)-2-thioxoimidazolidin-4-one esters were synthesized under mild conditions by the reaction of 5-(4-hydroxybenzyl)-2-thioxoimidazolidin-4-one and carboxylic acids with DCC and DMAP as the promoters. Their structures were confirmed by ¹H-NMR, IR, ESI-MS and elemental analysis. The preliminary bioassy results indicated that some of compounds exhibit good herbici...

The current study was designed to conduct the physicochemical, phytochemical and gas chromatography- mass spectrometry analysis of Chenopodium album Stellaria media L. Methanolic extract dried leaves prepared subsequently fractionated using different solvents like hexane, chloroform, ethyl acetate. Obtained plant fractions were analyzed for presence secondary metabolites screening methods. Furt...