Vol.78, No.1 January 2016
Explanation of the cover photographs
Infection of Melissococcus plutonius clonal complex 12 strain in European honeybee larvae is essentially confined to the digestive tract
Daisuke TSKAMATSU et al. (pp. 29–34)
Transmission electron micrographs of the tissues of honey bee larvae infected with European foulbrood pathogen, Melissococcus plutonius. M. plutonius cells were localized and proliferated mainly in the midguts of larvae during the course of infection (A–F). Some M. plutonius cells were also detected in other organs/tissues including tubules with short villi (G). FD, food in the midgut; Mp, M. plutonius; DG-Mp, degenerated M. plutonius; PM, peritrophic matrix; L, lumen; MV, microvilli; ME, midgut epithelial cell.
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