Young bean plants (Phaseolus vulgaris L. var Saxa) were fed with three different types of inorganic nitrogen, after being grown on nitrogen-free nutrient solution for 8 days. The pattern of (14)CO(2) fixation was investigated in photosynthesizing primary leaf discs of 11-day-old plants (3 days with nitrogen source) and in a pulse-chase experiment in 13-day-old plants (5 days with nitrogen sourc...

A rapid, sensitive spectrophotometric method for the analysis of sulfatides is described. The assay method is based upon the formation of a colored complex between the cationic dye azure A and (anionic) sulfolipids; the complex is extractable by a solution of chloroform-methanol 1:1. With the exception of some of the phospholipids, the reaction is specific for the sulfolipids. Cardiolipin was t...

When Escherichia coli Olll:B4 is exposed briefly to ethylenediaminetetraacetate (EDTA) it releases 30 to 50% of its lipopolysaccharide, determined not only by measuring percentage release of colitose, a sugar unique to this polymer, but also by measuring the amount of phenol-extractable lipopolysaccharide remaining with the cell. The fraction released cannot be significantly increased above 50%...

When Escherichia coli Olll:B4 is exposed briefly to ethylenediaminetetraacetate (EDTA) it releases 30 to 50% of its lipopolysaccharide, determined not only by measuring percentage release of colitose, a sugar unique to this polymer, but also by measuring the amount of phenol-extractable lipopolysaccharide remaining with the cell. The fraction released cannot be significantly increased above 50%...

This study was carried out to investigate the effect of treated wastewater on soil chemical and physical properties. Field experiment was conducted in Borkhar region in Isfahan province in central Iran with two water treatments of wastewater and groundwater under sprinkler and surface irrigation systems for three crops of sugar beet, corn and sunflower. Soil samples were collected to 120 cm dep...

The objective of this study was to determine the influence chitosan treatments, applied in vineyard for plan protection, on phenolic quality grapes. conducted two consecutive years (2020-2021) wine center Murfatlar, Romania, ‘Fetească neagră’, an ancient but well-known indigenous Romanian grape variety red wines. Chitosan is meant offer alternative classic treatment with Bordeaux mixture (BM), ...