80 research outputs found
sj-jpg-1-msj-10.1177_13524585231195861 – Supplemental material for GM-CSF is a marker of compartmentalised intrathecal inflammation in multiple sclerosis
No full textSupplemental material, sj-jpg-1-msj-10.1177_13524585231195861 for GM-CSF is a marker of compartmentalised intrathecal inflammation in multiple sclerosis by S-J Martin, K Brand-Arzamendi, G Saab, A Muccilli, J Oh and R Schneider in Multiple Sclerosis Journal</p
Use of plant water extracts for weed control in durum wheat (Triticum turgidum L. Subsp. durum Desf.)
No full textThe use of plant water extracts to control weeds is gaining attention in environmentallyfriendly agriculture, but the study of the effect that such extracts may exert on the yield of durum wheat is still unexplored. In 2014 and 2016, the herbicidal potential of several plant water extracts was field tested on durum wheat (cv Valbelice). In 2014, extracts obtained from Artemisia arborescens, Rhus coriaria, Lantana camara, Thymus vulgaris, and Euphorbia characias were used, whereas in 2016 only A. arborescens and R. coriaria were tested as "donor" plants. In both years, weed incidence was evaluated, together with the major yield parameters of wheat. None of the treatments (including chemicals) could eradicate weeds from the field. In 2014, dicots were in general prevailing in plots treated with extracts of E. characias, while monocots prevailed after treatments with L. camara and R. coriaria. In 2016, lower weed biomass and diversity level were found, and only Avena and Phalaris were detected at harvest time. Treatment with plant water extracts affected grain yields, but it seems likely that those effects are not due to the diverse incidence of weeds in treated and untreated plots, rather to some direct action exerted by allelopathic substances
sj-jpg-2-msj-10.1177_13524585231195861 – Supplemental material for GM-CSF is a marker of compartmentalised intrathecal inflammation in multiple sclerosis
No full textSupplemental material, sj-jpg-2-msj-10.1177_13524585231195861 for GM-CSF is a marker of compartmentalised intrathecal inflammation in multiple sclerosis by S-J Martin, K Brand-Arzamendi, G Saab, A Muccilli, J Oh and R Schneider in Multiple Sclerosis Journal</p
Chain-breaking antioxidant activity of hydroxylated and methoxylated magnolol derivatives: The role of H-bonds
No full textChemical modification of magnolol, an uncommon dimeric neolignan contained in Magnolia genus trees, provides a unique array of polyphenols having interesting biological activity potentially related to radical scavenging. The chain-breaking antioxidant activity of four new hydroxylated and methoxylated magnolol derivatives was explored by experimental and computational methods. The measurement of the rate constant of the reaction with ROO center dot radicals (k(inh)) in an apolar solvent showed that the introduction of hydroxyl groups ortho to the phenolic OH in magnolol increased the k(inh) value, being 2.4 x 10(5) M-1 s(-1) and 3.3 x 10(5) M-1 s(-1) for the mono and the dihydroxy derivatives respectively (k(inh) of magnolol is 6.1 x 10(4) M-1 s(-1)). The di-methoxylated derivative is less reactive than magnolol (k(inh) = 1.1 x 10(4) M-1 s(-1)), while the insertion of both hydroxyl and methoxyl groups showed no effect (6.0 x 10(4) M-1 s(-1)). Infrared spectroscopy and theoretical calculations allowed a rationalization of these results and pointed out the crucial role of intramolecular H-bonds. We also show that a correct estimation of the rate constant of the reaction with ROO center dot radicals, by using BDE(OH) calculations, requires that the geometry of the radical is as close as possible to that of the parent phenol
Proteomic analysis of proteins responsive to drought and low temperature stress in a hard red spring wheat cultivar
No full textDrought stress is becoming more prevalent with global warming, and has been shown to have large effects on gluten proteins linked to wheat bread making quality. Likewise, low temperature stress can detrimentally affect proteins in wheat. This study was done to determine the differential abundance of high molecular weight (HMW) glutenin proteins in a drought and low temperature stressed high quality hard red spring wheat cultivar (PAN3478), against a control. The treatments were applied in the greenhouse at the soft dough stage. HMW glutenin proteins were extracted from the flour, and were separated by using two-dimensional gel electrophoresis. Protein spots that had p values lower than 0.05 and fold values equal to or greater than 1.2 were considered to be significantly differentially abundant. These proteins were further analyzed by using tandem mass spectrometry. There was a 1.3 to 1.8 fold change in 17 protein spots due to the cold treatment. The drought treatment caused a 1.3 to 3.8 fold change in 19 protein spots. These spots matched either HMW or low molecular weight (LMW) glutenin subunits. In the latter case, the C subunits of LMW glutenins were notably found to be up-regulated under both stress conditions. All the proteins that have been identified can directly influence dough characteristics. Data are available via ProteomeXchange with the identifier PXD017578
Proteolytic enzymes in storage protein mobilization and cell death of the megagametophyte of Araucaria bidwillii Hook. post-germinated seeds
No full textSaccharomyces hybrids as a tool for improving the quality of Moscato di Siracusa DOC wine
No full textThe study aimed to evaluate four Saccharomyces cerevisiae strains, one intraspecific S. cerevisiae hybrid, and five interspecific S. cerevisiae×S. uvarum hybrids with respect to the quality of Moscato di Siracusa DOC wine by comparing them with a commercial Saccharomyces cerevisiae strain. Most of the interspecific hybrids maintained volatile acidity (VA) at very low levels, produced high concentrations of glycerol, malic and succinic acid, and yielded the highest concentration of positive sensory attributes. On the basis of the results of these experimental fermentation trials, a real opportunity to produce special wines employing S. cerevisiae×S. uvarum hybrids is proposed.The study aimed to evaluate four Saccharomyces cerevisiae strains, one intraspecific S. cerevisiae hybrid, and five interspecific S. Cerevisiae×S. uvarum hybrids with respect to the quality of Moscato di Siracusa DOC wine by comparing them with a commercial Saccharomyces cerevisiae strain.Most of the interspecific hybrids maintained volatile acidity (VA) at very low levels, producedhigh concentrations of glycerol, malic and succinic acid, and yielded the highest concentrationof positive sensory attributes.On the basis of the results of these experimental fermentation trials, a real opportunity to producespecial wines employing S. cerevisiae×S. uvarum hybrids is proposed
Quality Characteristics of Wholemeal Flour and Bread from Durum Wheat (Triticum turgidum L subsp. durum Desf.) after Field Treatment with Plant Water Extracts
No full textThe use of selected plant water extracts to control pests and weeds is gaining growing attention in organic and sustainable agriculture, but the effects that such extracts may exert on the quality aspects of durum wheat are still unexplored. In 2014, 5 plant water extracts (Artemisia arborescens, Euphorbia characias, Rhus coriaria, Thymus vulgaris, Lantana camara) were prepared and distributed on durum wheat cv Valbelice to evaluate their potential herbicidal effects. After crop harvesting, the major physicochemical and technological parameters of wholemeal flours obtained from each treatment were measured and compared with those from chemical weeding and untreated controls. A baking test was also performed to evaluate the breadmaking quality. In wholemeal flours obtained after the treatment with plant extracts protein and dry gluten content were higher than in control and chemical weeding. Wholemeal flours obtained after chemical weeding reached the highest Mixograph parameters, and that from durum wheat treated with R. coriaria extract demonstrated a very high α-amylase activity. We concluded that the treatments with plant water extracts may influence many quality traits of durum wheat. This occurrence must be taken into account in overall decisions concerning the use of plant extracts in pest and weed management practice
- …
