Results 121 to 130 of about 782 (159)

In situ observation of pinewood nematode in wood

European Journal of Plant Pathology, 2016
In pine wilt disease, xylem dysfunction occurs in relation to nematode migration and proliferation in host tissue, but the detection accuracy of pinewood nematode (PWN), Bursaphelenchus xylophilus, in pine stem tissue remains unclear. This study describes the use of cryo-scanning electron microscopy (cryo-SEM) and fluorescein-conjugated wheat germ ...
Toshihiro Umebayashi, Toshihiro Yamada, Kazunari Fukuhara, Ryota Endo, Dai Kusumoto, Kenji Fukuda   +5 more
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THE PINEWOOD NEMATODE:Regulation and Mitigation

Annual Review of Phytopathology, 1997
▪ Abstract  In North America, the native pinewood nematode (PWN), Bursaphelenchus xylophilus, kills exotic pines. When inadvertently introduced to Japan and other Asian countries, PWN became a destructive pest of pines. The PWN has been intercepted in pine shipments from North America to Europe, where there is concern that it may also kill pines and ...
openaire   +2 more sources

Sublethal infection of different pine species by the pinewood nematode

Plant Pathology, 2020
Abstract Bursaphelenchus xylophilus , the pinewood nematode and causal agent of pine wilt disease (PWD), is a globally destructive pine pest. PWD is favoured by high temperatures and drought, but B .
Carla S. Pimentel, Jessica McKenney, Paulo N. Firmino, Teresa Calvão, Mathew P. Ayres   +4 more
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Mechanisms of invasive population establishment and spread of pinewood nematodes in China

Science in China Series C: Life Sciences, 2009
This paper summarizes the results of our study of the pinewood nematode (Bursaphelenchus xylophilus). By population genetic analysis, it was determined that there was no genetic bottle caused by the founder effect and genetic drift in the Chinese invasive population.
BingYan, XIE, XinYue, CHENG, Juan, SHI, QingWen, ZHANG, ShuMing, DAI, Fei Xue, CHENG, YouQing, LUO   +6 more
openaire   +2 more sources

Attraction of Pinewood Nematode to Endoparasitic Nematophagous Fungus Esteya vermicola

Current Microbiology, 2009
The investigations on attraction of nematodes to nematophagous fungi have mostly dealt with the nematode-trapping species. Esteya vermicola is the endoparasitic fungus of pinewood nematode (PWN) with high infection activity. In the present study, the attraction of PWNs to E. vermicola was investigated.
Chun Yan, Wang, Zhen, Wang, Zhe Ming, Fang, Dong Liang, Zhang, Li Juan, Gu, Lei, Liu, Chang Keun, Sung   +6 more
openaire   +2 more sources

Distribution of the pinewood nematode in China and susceptibility of some Chinese and exotic pines to the nematode

Canadian Journal of Forest Research, 1989
From 1983 to 1987 a survey was made to determine the hosts and geographic distribution of the pinewood nematode Bursaphelenchusxylophilus (Steiner and Buhrer), the cause of pine wilt disease, in China. Samples (669) were obtained from dead and dying conifers in 18 provinces and in the federally administrated cities of Beijing and Shanghai.
Yang Baojun, Wang Qouli
openaire   +1 more source

Field Diagnosis of the Asymptomatic Carrier of Pinewood Nematode

2008
To prevent pine wilt disease (PWD) from spreading over pine forests, elimination of pine trees killed by the pinewood nematode (PWN), Bursaphelenchus xylophilus is desirable, though this method is very laborious and time-consuming. If such dead trees are left in the field, pathogenic nematodes and their vector, Monochamus beetles, could spread from ...
Kazuyoshi Futai, Yuko Takeuchi
openaire   +1 more source

Influence of Fungi on Multiplication and Distribution of the Pinewood Nematode

2008
The influence of fungi on multiplication and distribution of the pinewood nematode (PWN) was investigated in Pinus thunbergii cuttings. Axenized nematodes and/or one of two fungi isolated from healthy and PWN-killed P. thunbergii were inoculated together into autoclaved cuttings. A close relationship between existence and distribution of fungal hyphae,
Yu Wang, Toshihiro Yamada, Daisuke Sakaue, Kazuo Suzuki   +3 more
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The pinewood nematode, Bursaphelenchus xylophilus

2012
According to the European Plant Protection Organization, the pinewood nematode (PWN), Bursaphelenchus xylophilus is a quarantine organism at the top of the list of the pathogenic species. PWN may be found in North America (Canada, USA and Mexico) and in East Asia (Japan, Korea, China and Taiwan) and has a highly destructive capability towards conifers,
Mota, Manuel, Vieira, Paulo
openaire   +1 more source

Pine wilt disease and the pinewood nematode

2012
Pine wilt disease (PWD) is one of the most damaging events affecting conifer forests (in particular Pinus spp.), in the Far East (Japan, China and Korea), North America (USA and Canada) and, more recently, in the European Union (Portugal). In Japan it became catastrophic, damaging native pine species (Pinus thunbergii and P.
Mota, Manuel, FUTAI, K, VIEIRA, Paulo
openaire   +1 more source