l-(U-(14)C)-5-oxoproline (pyrollidone carboxylic acid or pyroglutamic acid) was infiltrated into detached leaves of a number of species and incubated for 1 to 6 hours. In every case, conversion to labeled glutamate and glutamine was observed. The amount converted varied from 1 to 64% of the total label fed depending on the species. The ratio of glutamate-(14)C to glutamine-(14)C ranged from 5 i...

Chloroplasts isolated from powdery mildew-infected (Erysiphe polygoni DC) sugar beet leaves (Beta vulgaris L) showed a reduction in the rate of electron transport and in the accompanying ATP formation in noncyclic photophosphorylation (water as electron donor, NADP as electron acceptor) and little or no change in the rate of ATP formation in cyclic photophosphorylation catalyzed by phenazine me...

Allelopathy is described as the interference to plant growth resulting from chemical interactions among plants and other organisms mediated through release of bioactive secondary metabolites. Since only a few studies have been reported about role seed allelopathy, an experiment was designed evaluate seeds Portulaca oleracea L. crop species common bean (Phaseolus vulgaris L.), onion (Allium cepa...

Even though the faba bean (Vicia faba L.) is among the most ubiquitously cultivated crops, very little is known about its origins. Here, we report discoveries of charred faba beans from three adjacent Neolithic sites in the lower Galilee region, in the southern Levant, that offer new insights into the early history of this species. Biometric measurements, radiocarbon dating and stable carbon is...

Samples of sweet yellow lupins (Lupinus luteus; n = 4), broad leaf lupins (Lupinus albus; n = 12), narrow leaf lupins (Lupinus angustifolius; n = 8), faba beans (Vicia faba; n = 2), field peas (Pisum sativum; n = 4) and narbon beans (Vicia narbonensis; n = 2) were collected over a two-year period. The physical characteristics (thousand seed and hectolitre mass), chemical composition (dry matter...

Haemolytic favism is a severe, acute anaemia which occurs in glucose-6-phosphate dehydrogenase deficient individuals, usually following the ingestion of Vicia faba seeds. Current interest is focused on the nature of the active substances of Vicia faba and on the causes of the varying susceptibility among G6PD-deficient individuals to episodes of severe haemolysis. The results of experiments in ...

The influence of salinity on the different polyamine fractions (free, conjugated, and bound) was compared in a natrophilic halophyte (Beta vulgaris L. cv. IC) and a salt sensitive glycophyte (Nicotiana rustica L. cv. Basmas). Low-level salinity (25 mM NaCl) and high salinity (150 and 50 mM NaCl for sugar beet and tobacco, respectively) were supplied in hydroponics. Under low salinity shoot dry ...

a restriction-site analysis of chloroplast dna (cpdna) was carried out to evaluate the levelof diversity in vicia faba l. germplasm selected from different geographical regions using 11 restrictionendonucleases. we analyzed 214 restriction sites in 18 accessions of vicia faba. all of the accessionshad identical cpdnas, pointing out the ancestral character of all the accessions are of only one g...

eight faba bean genotypes and one local (barkat) as control were evaluated for three successive years (2000-2003) in a randomized complete block design (rcbd) with four replications at gorgan agricultural research station. this study was carried out to determine the morphological traits, yield components and yield stability to select the best genotypes. simple and combined analysis of variance ...

In Europe, the framework for sugar beet (Beta vulgaris L.) production was subject to considerable changes and for the future it is expected that sugar beet cultivation might concentrate around the sugar factories for economic reasons. Based on data from a national sugar beet farmers' survey and multi-year crop rotation trials, the effects of cropping interval (number of years in between two sub...