Summary Sclerotinia sclerotiorum is a pathogen which causes disease of oilseed rape. Severe plant infection contributes to decrease in the quality crop. It therefore important pay attention whether hybrids are highly tolerant this fungal at early stages breeding. In study, question interest there has been progress increasing tolerance new pathogen. Three years breeding experiments (2014, 2015, ...

sclerotinia sclerotiorum is a phytopathogenicfungus that attacks more than 400 plant species of them medicinal plant. in this study the extract obtained from basal stalk rot of helianthus annuus l., attacked by s. sclerotiorum, was subjected to the analysis of ftir to identify the presence of beta-glucan. ft-ir spectrum showed four ranges of bands in 890 cm-1, two overlap band in 1047 and 1078 ...

Bu çal??mada, Türkiye'nin Hatay ilinin farkl? bölgelerinde do?al olarak yeti?en Foeniculum vulgare ve Laurus nobilis gibi bitkilerden elde edilen uçucu ya?lar?n, toprak kaynakl? mantar (Sclerotinia sclerotiorum) hastal?k etkenlerine kar?? in vitro antifungal etkinli?i ara?t?r?lm??t?r. Farkl? konsantrasyonlardaki ya?lar?n faz?, doza ba?l? bir ?ekilde miselyal geli?meyi inhibe etmi?tir. L. ya?lar...

Effective plant defense strategies rely in part on the perception of non-self determinants, so-called microbe-associated molecular patterns (MAMPs), by transmembrane pattern recognition receptors leading to MAMP-triggered immunity. Plant resistance against necrotrophic pathogens with a broad host range is complex and yet not well understood. Particularly, it is unclear if resistance to necrotro...

Pseudomonas sp. DF41 is a biocontrol agent capable of suppressing Sclerotinia sclerotiorum-mediated stem rot of canola. Using transposon mutagenesis, we identified two mutants with greatly reduced antifungal (AF) activity. The first mutant had an insertion in gacS, forming part of the GacS/GacA regulatory system. The second mutation was in a gene involved in lipopeptide (LP) synthesis suggestin...

Pseudomonas chlororaphis strain PA23 has demonstrated excellent biocontrol in the canola phyllosphere. This bacterium produces the non-volatile antibiotics phenazine and pyrrolnitrin as well as the volatile antibiotics nonanal, benzothiazole and 2-ethyl-1-hexanol. In vitro experiments were conducted to study the effects of different mutations on the production of these three organic volatile an...

Sclerotinia sclerotiorum D-E7 was studied to determine the impact of nutritional supplements and monosaccharides on growth, oxalate accumulation, and culture pH in broth media (initial pH c. 5). Cultures with 0.1% nutritional supplement (tryptone, yeast extract, or soytone) yielded minimal growth, 2-3 mM oxalate, and a final culture pH of 4.2-4.8. In contrast, cultures with 0.1% nutritional sup...