Ultrastructure and transovarial transmission of endosymbiotic microorganisms in Palaeococcus fuscipennis (Burmeister) (Insecta, Hemiptera, Coccinea: Monophlebidae)

• Authors: T. Szklarzewicz , K. Kedra , S. Niznik
• Languages of publication: EN

Abstracts

EN

Ovaries of Palaeococcus fuscipennis (Burmeister) are accompanied by large organs termed bacteriomes which are composed of large cells termed bacteriocytes. Each bacteriocyte is surrounded with small epithelial cells. The bacteriocyte cytoplasm is tightly packed with pleomorphic bacteria, whereas in epithelial cells small coccoid microorganisms are present. The number of coccoid bacteria is significantly lower than pleomorphic bacteria. The ovarioles containing choriogenic oocytes are invaded both by pleomorphic as well by coccoid bacteria. Microorganisms traverse the follicular epithelium and enter the perivitelline space. During advanced choriogenesis, endosymbionts are accumulated in the deep depression of the oocyte. Bacteria do not enter the ooplasm until the end of oocyte growth.

Keywords

EN

ENDOSYMBIOTIC MICROORGANISM; INSECT; TRANSOVARIAL TRANSMISSION

Discipline

• EXPERIMENTAL_BIOLOGY_&_MEDICINE: EXPERIMENTAL BIOLOGY & MEDICINE

• Journal: Folia Biologica
• Year: 2006
• Volume: 54
• Issue: 1-2
• Pages: 61-67

Contributors

author

T. Szklarzewicz

author

K. Kedra

author

S. Niznik

• Document Type: ARTICLE
• Publication order reference: Teresa Szklarzewicz, Department of Systematic Zoology and Zoogeography, Institute of Zoology, Jagiellonian University, R. Ingardena 6, 30-060 Krakow, Poland