Abstract
1Mycoplasma Section, National Institute of Allergy and Infectious Diseases, Frederick Cancer Research and Development Center, Frederick, Maryland 21702
2Insect Biocontrol Laboratory, U.S. Department of Agriculture, Beltsville, Maryland 20705
3Laboratoire de Biologie Cellulaire et Moleculaire, Institut National Recherche Agronomique and Université de Bordeaux II, 33883 Villenave d'Ornon Cedex, France
4Department of Microbiology, Ohio State University, Columbus, Ohio 43210
5Department of Anatomical Sciences, State University of New York, Stony Brook, New York 11794
6National Resources Institute, Chatham, Kent, England ME4 4TB