Several papers have appeared in the literature since 1992 which refer to a major "isoflavonoid" antioxidant in young green barley leaves (Hordeum vulgare) as 2''-O-glucosylisovitexin. In the present paper the original NMR data supporting this structural assignment are examined and found to have been misinterpreted. HPLC and NMR data are used to prove that the major flavonoid antioxidants in you...

Aspartate kinase (EC 2.7.2.4) has been purified 8-fold and characterized from germinating barley (Hordeum vulgare) seedlings. The enzyme is inhibited 50% by 0.7 mm l-lysine and almost completely at 5 mm. l-Methionine does not affect the enzyme on its own, but at low concentrations (0.1-1 mm) increases the inhibition in the presence of lysine, indicating that the two amino acids act as cooperati...

Fluazifop is a grass-selective herbicide that appears to act by inhibiting fatty acid synthesis de novo in sensitive species. Results from four different types of experiment show that this inhibition is due to an action of fluazifop on acetyl-CoA carboxylase and not on fatty acid synthetase. The acetyl-CoA carboxylase from sensitive barley (Hordeum vulgare), but not from resistant pea (Pisum sa...

The article reports on the floral records of seven plant taxa for Mangystau region: Cakile maritima (subsp. euxina), Epilobium hirsutum, Rosa canina, Hordeum murinum. Among finds, subsp. euxina is a new genus and species flora Kazakhstan, presumably it also grows northern shore Caspian Sea, in Atyrau (Kazakhstan) Astrakhan Regions (Russia). hirsutum canina are given first time Mangyshlak floris...

five common range forage including agropyron intermedium, bromustomentellus, hordeum bulbosum, cousinia bakhtiarica and scariolla orientalis, weresampled during three phenological stages, from controlled rangeland stations over fivelocations in chaharmahal and bakhtiari province, iran. all samples were chemicallyanalyzed for crude protein (cp%), in vitro dry matter digestibility (dmd), organicm...

Нашими попередніми дослідженнями встановлена висока стійкість окремих зразків H. spontaneum до популяцій рас гельмінтоспоріозної інфекції південної зони України та характер успадковування цієї стійкості у гібридних поколіннях [8, 9] при цьому використання джерел патогенів в селекції рослин це імунологічний напрям, тоді як звичайний селекційний процес охоплює відразу кілька напрямків оцінювання ...

Stomata of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) leaves failed to open in the light and close in the dark or respond to changes in the CO(2) concentration of the atmosphere in either light or dark when the leaves were in an O(2)-free atmosphere. In contrast, the expected responses to environmental changes were found in atmospheres containing 1.5% O(2). It appears that O(2...

A new type of chlorophyll catabolite was isolated from extracts of de-greened primary leaves of barley (Hordeum vulgare cv. Lambic). Its constitution was elucidated by one-dimensional and two-dimensional [(1)H,(13)C]-homo- and heteronuclear NMR spectroscopic techniques and by high resolution mass spectroscopy. The isolated catabolite, a water-soluble, colorless, and nonfluorescent linear tetrap...

Increases in two extracellular peroxidases were observed following inoculation of barley (Hordeum vulgare L.) with the powdery mildew pathogen (Erysiphe graminis DC.: Fr. f. sp. hordei Em. Marchal). The more prominent isozyme, P8.5, was purified from intercellular wash fluids by acetone precipitation, ion-exchange chromatography, isoelectric focusing, and gel filtration. Purified P8.5 is a heme...

When worked out the treatment of Artemisia for Flora Iranica, in several cases no good, determinable material was available, especially from outside of Afghanistan, namely, Iran and the neighbouring Middle Asian regions. This was especially a problem for species of the homogamous group Serephidium. During the work on very rich new material of this group from Iran, collected by V. Mozaffarian (T...