Journal
JOURNAL OF INVERTEBRATE PATHOLOGY
Volume 97, Issue 3, Pages 310-313Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jip.2007.09.009
Keywords
Pentastiridius leporinus; planthopper; intranuclear bacteria; morphology; electron microscopy; Wolbachia
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Pentastiridius leporinus is an important vector of sugar beet pathogens in eastern France. An electron microscope survey on the insect-associated microflora revealed the occurrence of intranuclear prokaryotic cells in every internal organ analysed. These bacteria, which could also be found in the cytoplasm surrounding the nucleus, had a homogeneous coccoid (ca. 0.45 mu m) or rod (0.45-1 mu m) shape. The presence of three membrane layers was observed, the outermost forming a kind of vacuole containing generally a single microorganism. No cytopathological abnormalities were detected in the infected cells. To our knowledge, this is the first report of a hemipteran species infected by intranuclear bacteria. The possible identity of this microorganism is discussed. (C) 2007 Elsevier Inc. All rights reserved.
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