Symbiotic microorganisms of the leafhopper Deltocephalus pulicaris (Fallén, 1806) (Insecta, Hemiptera, Cicadellidae: Deltocephalinae): molecular characterization, ultrastructure and transovarial transmission

Michał Kobiałka 1 , Anna Michalik 1 , Marcin Walczak 2 , Łukasz Junkiert 2  and Teresa Szklarzewicz 1
  • 1 Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland
  • 2 Department of Zoology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, 40-007 Katowice, Poland


The ovaries of the leafhopper Deltocephalus pulicaris are accompanied by large organs termed bacteriomes, which are composed of numerous polyploid cells called bacteriocytes. The cytoplasm of bacteriocytes is tightly packed with symbiotic microorganisms. Ultrastructural and molecular analyses have revealed that bacteriocytes of D. pulicaris contain two types of symbionts: the bacterium “Candidatus Sulcia muelleri” and the bacterium “Candidatus Nasuia deltocephalinicola”. Both symbionts are transovarially transmitted from the mother to the next generation.

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