| new leaf diseases of barley in egypt. | leaf diseases of barley were observed also in egypt. from leaves of barley were isolated: helminthosporium teres, h. gramineum, stemphylium vesicarium, alternaria triticina, vlocladium chartarum, acnemonium kiliense, stemphylium spec. accompanied with the pleospora stage. inoculations on both attached and detached leaves showed that all the tested fungi were pathogenic, except acremonium kiliense and ulocladium chartarum. | 1976 | 1037183 |
| fungitoxicity of lyophilized and spray-dried garlic extracts. | among the compounds discussed for anti-microbial and anti-fungal use allicin (allylthiosulfinate, diallyl disulfide-s-monoxide), an active ingredient of garlic, has attracted considerable attention. the objective of this study is to determine the antifungal activity of a local garlic ecotype (voghiera) extracts against different pathogens. primary screening was carried out by the agar plates technique using ethanol garlic extract at four final concentrations against the following organisms: alte ... | 2007 | 17763036 |
| first occurrence of strobilurin-resistant isolates of stemphylium vesicarium in an italian pear orchard. | | 2007 | 18396802 |
| purification and biological characterization of host-specific sv-toxins from stemphylium vesicarium causing brown spot of european pear. | abstract culture filtrates of a pathogenic isolate (it37) of stemphylium vesicarium, causing brown spot of european pear, induced veinal necrosis only on pear leaves susceptible to the pathogen. two host-specific toxins, sv-toxins i and ii, were purified from culture filtrates of it37 by successively using amberlite xad-2 resin adsorption, cellulose thin-layer chromatography, and high-performance liquid chromatography under three different sets of conditions. susceptible cultivars showed veinal ... | 1999 | 18944740 |
| quantitative detection of pear-pathogenic stemphylium vesicarium in orchards. | abstract isolates of stemphylium vesicarium causing brown spot of pear can be distinguished from nonpathogenic isolates of s. vesicarium from pear or from other hosts on the basis of distinctive amplified fragment length polymorphism fingerprinting profiles. dna fragments specific for isolates pathogenic to pear were identified and a quantitative polymerase chain reaction (pcr) was developed on the sequence from one of these specific dna loci. this taqman pcr has a high sensitivity with a dynami ... | 2009 | 19900004 |
| baseline sensitivity of stemphylium vesicarium, the causal agent of pear brown spot, to boscalid. | | 2009 | 20222565 |
| a thaumatin-like gene from asparagus officinalis (aoprt-l) exhibits slow activation following tissue maceration or salicylic acid treatment, suggesting convergent defence-related signalling in monocots. | summary messenger rna derived from mechanically separated cells of asparagus has proved to be an enriched source of defence-related transcripts. we describe the characterization of a novel pr-5 gene coding for a secreted protein of neutral pi (aoprt-l) that is strongly up-regulated following cell isolation or following accelerated tissue ageing caused by tissue maceration, but which is also responsive to salicylic acid, a defence-related signal not normally associated with wound responses. infec ... | 2000 | 20572983 |
| effect of relative humidity and interrupted wetness periods on brown spot severity of pear caused by stemphylium vesicarium. | abstract field observations in four pear orchards during 5 years from april to october indicated that days with uninterrupted wetness of variable length represented 83.9% of the total days studied. however, days with surface wetness interruptions and with high relative humidity (rh) (>/=90%) without wetness occurred with a frequency of 7.1 and 6.2%, respectively. accordingly, the effect of interruption of 24-h wetness periods by dry periods of high or low rh on infections caused by stemphylium v ... | 2002 | 18944145 |