Gatehouse, L.N., Sutherland, P., Forgie, S.A., Kaji, R., & Christeller, J.T. 2012 Molecular and Histological Characterization of Primary (Betaproteobacteria) and Secondary Gammaproteobacteria) Endosymbionts of Three Mealybug Species. Applied and Environmental Microbiology 78(4): 1187–1197
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Notes: Microscopic localization of endosymbiotic bacteria in three species of mealybug (Pseudococcus longispinus, the long-tailed mealybug; Pseudococcus calceolariae, the citrophilus mealybug; and Pseudococcus viburni, the obscure mealybug) showed these organisms were confined to bacteriocyte cells within a bacteriome centrally located within the hemocoel. Two species of bacteria were present, with the secondary endosymbiont, in all cases, living within the primary endosymbiont. The data from this model are consistent with a role for the primary endosymbiont in mealybug transmission of Grapevine leafroll-associated virus 3.
