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Pinewood nematode-associated bacteria contribute to oxidative stress resistance...
Vicente, Claudia; Ikuyo, Yoriko; Mota, Manuel; Hasegawa, KoichiBackground: Pine wilt disease (PWD) caused by the pinewood nematode Bursaphelenchus xylophilus is one of the most serious forest diseases in the world. The role of B. xylophilus-associated bacteria in PWD and their interaction with the nematode, have recently been under substantial investigation. Several studies report a potential contribution of the bacteria for the PWD development, either as a helper to enhan...
Characterization of bacterial communities associated with the pine sawyer beetl...
Vicente, Claudia; Nascimento, Francisco; Espada, Margarida; Barbosa, Pedro; Hasegawa, Koichi; Mota, Manuel; Oliveira, SolangePine wilt disease (PWD) has a tremendous impact on worldwide forestlands, both from the environmental and economical viewpoints. Monochamus sp., a xylophagous insect from the Cerambycidae family, plays an important role in dissemination of the pinewood nematode, Bursaphelenchus xylophilus, the primary pathogenic agent of PWD. This study investigates, for the first time, the bacterial communities of Monochamus g...
Developmental biology and cytogenetics of B. xylophilus
Hasegawa, Koichi; MOTA, Manuel; FUTAI, Kazuyoshi; MIWA, JohjiThe pine wood nematode Bursaphelenchus xylophilus reproduces bisexually: a haploid sperm fertilizes a haploid oocyte, and the two pronuclei rearrange, move together, fuse, and begin diploid development. Early embryonic events taking place in the B. xylophilus embryo are similar to those of Caenorhabditis elegans, although the anterior-posterior axis appeares to be determined oppositely to that observed for C. e...
Chromosome structure and behaviour in Bursaphelenchus xylophilus (Nematoda: Par...
HASEGAWA, Koichi; MOTA, Manuel; FUTAI, Kazuyoshi; MIWA, JohjiChromosome structure and behaviour in both meiosis of the germ cells and mitosis of the embryo from fertilisation to the two-cell stage in Bursaphelenchus xylophilus were examined by DAPI staining and three-dimensional reconstruction of serial-section images from confocal laser-scanning microscopy. By this method, each chromosome’s shape and behaviour were clearly visible in early embryogenesis from fertilisati...
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