Ren J., Song Ch.-L., Wang P., Li S., Kopparapu N.-K., Zheng X.-Q. (2015): Modification of structural and functional properties of sunflower 11S globulin hydrolysates. Czech J. Food Sci., 33: 474–478. The structural and functional properties such as solubility, emulsifying properties, foaming properties, oil binding capacity, and surface hydrophobicity of sunflower 11S globulin hydrolysates gene...

 Background to the research and aims. French pathologists have been intensively monitoring the prevalence of sunflower downy mildew in France over a 20 years period. Despite efforts to produce resistant varieties of sunflower, this monitoring has revealed that there has been a recent and rapid emergence of new and endemic (found only in France) races, that has led to an increase from one origi...

The capacity of Cryptococcus spp to produce melanin in media containing phenol compounds is widely used for identifying these species in the laboratory. The aim of the present study was to compare the production of this pigment by Cryptococcus spp. in four culture media. Sixteen strains of Cryptococcus neoformans, 17 of Cryptococcus albidus, 13 of Cryptococcus laurentii and two of Cryptococcus ...

The use of neonicotinoid seed treatments is a nearly ubiquitous practice in sunflower (Helianthus annuus) pest management. Sunflowers have a speciose pest complex, but also harbor a diverse and abundant community of beneficial, nontarget organisms which may be negatively affected by pest management practices. Here, we investigate how the foliar and subterranean arthropod pest communities in sun...

More people feed birds and other wildlife than hunt and fish combined. Despite its popularity, many bird-feeding traditions lack scientific data. We examined seed and feeder use by wild birds in the United States and Canada, and how seed use may change by season and geographic region. Between 2005 and 2008, 173 individuals from 38 states and 3 provinces in Canada made 20,077, 45-minute observat...

Downy mildew caused by Plasmopara halstedii is one of the main diseases causing economic losses in cultivated sunflower. Resistance in this host is conferred by major genes denoted Pl. The inbred sunflower line QIR8, which contains the Pl8 locus and is resistant to all known downy mildew races, was used to isolate a full-length resistance gene analogue (RGA) belonging to the CC-NBC-LRR class of...

Sunflower (Helianthus annuus) plants showing chlorotic concentric rings and line patterns on the leaves were observed in field crops near Paraná city (Entre Ríos, Argentina). Virus-enriched preparations examined with a trasmission electron microscope contained quasi-spherical particles ca. 33 nm in diameter. Symptomatic sunflower samples were serologically negative for six known members of the ...

The identification of Diaporthe (anamorph Phomopsis) species associated with stem canker of sunflower (Helianthus annuus) in Australia was studied using morphology, DNA sequence analysis and pathology. Phylogenetic analysis revealed three clades that did not correspond with known taxa, and these are believed to represent novel species. Diaporthe gulyae sp. nov. is described for isolates that ca...

This paper presents the efficacy of PGPR (Azospirillum and Pseudomonas) and its modulation by salicylic acid. Two hybrids of sunflower (Hysun and Parsun) were inoculated with Azospirillum spp. and Pseudomonas spp. prior to sowing. Salt stress (20 dSm) was applied 28 d after sowing followed by foliar spray of salicylic acid (100 μM) after 4 h of salt treatment. Azospirillum and Pseudomonas inocu...