First report of Gnomoniopsis smithogilvyi causing lesions and cankers of sweet chestnut in the United Kingdom [PDF]
In late summer 2016 cankers and shoot dieback were detected on a sweet chestnut ( Castanea sativa ) tree (Figs. 1-2) during a survey for chestnut blight ( Cryphonectria parastica ) in southeast England. The tree was part of a two-year-old…
A. Lewis +4 more
openaire +1 more source
First report of Fusarium avenaceum causing branch canker on pear in Turkey [PDF]
Pear (Pyrus communis) is an important fruit crop in Turkey. In May 2021, canker lesions were observed in pruning wounds on approximately 70% of the pear trees cultivar Deveci in a fve-year-old orchard in Bursa province, Turkey.
Bayraktar, Harun +9 more
core +1 more source
Biocontrol of citrus canker with endophyte Bacillus amyloliquefaciens QC-Y
Citrus canker is an important disease caused by Xanthomonas axonopodis pv. citri that affects citrus species. We isolated a bacterium denominated QC-Y with a strong inhibitory effect on citrus canker from navel orange leaves.
Jialin Qian +6 more
doaj +1 more source
causing Phomopsis stem canker on sunflower in Argentina [PDF]
Phomopsis stem canker, a disease emerging on sunflower (Helianthus annuus) in response to environmental change, has already been described in Argentina with Diaporthe helianthi as the main aetiological agent (Ridao et al., 1994).
Colombo, Denis Nahuel +7 more
core +1 more source
Lenticel infection in Fraxinus excelsior shoots in the context of ash dieback
Common ash (Faxinus excelsior L.) in Europe is declining on a continental scale due to the action of Hymenoscyphus fraxineus, an invasive forest pathogen that causes ash dieback disease leading to the collapse and eventual death of ash trees through ...
Nemesio-Gorriz M +4 more
doaj +1 more source
Development of phoma lesions on oilseed rape leaves inoculated with ascospores of A‐group or B‐group Leptosphaeria maculans (stem canker) at different temperatures and wetness durations [PDF]
In controlled‐environment experiments, ascospores of both A‐group and B‐group Leptosphaeria maculans were able to infect leaves of oilseed rape and produce phoma leaf spot lesions at temperatures from 5 to 20°C and wetness durations from 8 to 72 h after inoculation.
Toscano-Underwood, C. +4 more
openaire +1 more source
Genetic basis for resistance against fruit tree canker in apple [PDF]
Neonectria ditissima (formerly Neonectria galligena, anamorph Cylindrocarpon heteronema) is the causal agent of fruit tree canker which is regarded as a serious economic problem in horticulture.
Ghasemkhani, Marjan
core +1 more source
ビワ葉に親和性細菌であるビワがんしゅ病菌(Pseudomonas syringae pv. eriobotryae)Bグループ菌を接種すると,ビワのファイトアレキシンであるaucuparinが病斑発現とともに検出されるが,病斑拡大停止時には消失し,これに代わって.eriobofuranが検出されるようになった。ビワ葉に非親和性細菌であるタバコ野火病菌(Pseudomonas syringae pv. tabaci)を接種すると,病斑は形成されないが接種直後からaucuparinが検出され,eriobofuranは検出されなかった。これらのことから,aucuparinは病原菌の侵入・感染に,eriobofuranは病斑拡大阻止に関与していると考察した。
Morita, Akira, Nonaka, Fukuji
openaire +2 more sources
Lethal stem and root cankers were observed in nursery-grown Platanus × acerifolia trees in Rome. Externally, canker lesions appeared as bluish or blackish areas starting from the stem base and extending upward. Inner bark was necrotised. In some cases an
Massimo PILOTTI +3 more
doaj +1 more source
Increased Resistance Against Citrus Canker Mediated by a Citrus Mitogen-Activated Protein Kinase
Mitogen-activated protein kinases (MAPK) play crucial roles in plant immunity. We previously identified a citrus MAPK (CsMAPK1) as a differentially expressed protein in response to infection by Xanthomonas aurantifolii, a bacterium that causes citrus ...
Maria Luiza Peixoto de Oliveira +5 more
doaj +1 more source

