Results 21 to 30 of about 607,331 (183)

First report of Gnomoniopsis smithogilvyi causing lesions and cankers of sweet chestnut in the United Kingdom [PDF]

open access: yesNew Disease Reports, 2017
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]

open access: yes, 2022
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

open access: yesPlant Protection Science, 2021
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]

open access: yes, 2023
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

open access: yesiForest - Biogeosciences and Forestry, 2019
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]

open access: yesPlant Pathology, 2001
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]

open access: yes, 2012
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

Two phytoalexins extracted from leaf lesions of loquat canker and their inhibition of plant bacteria.

open access: yesKyushu Plant Protection Research, 2003
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

Phytophthora cinnamon causing stem canker and root rot of nursery-grown Platanus × acerifolia: first report in the Northern emisphere

open access: yesPhytopathologia Mediterranea, 2014
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

open access: yesMolecular Plant-Microbe Interactions, 2013
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

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