Appreciation is extended to numerous colleagues who have provided technical, inspirational, and material support for the studies on the ultrastructure of the soybean cyst nematode and who have given invaluable suggestions and editorial comments for papers used in this atlas. Many thanks are expressed to the following:
J.R. Adams (retired), Plant Sciences Institute, Beltsville, MD;
J.G. Baldwin, University of California, Riverside, CA;
A.F. Bird (retired), Division of Soils, CSIRO, Adelaide, Australia;
P. Bryant, West Tennessee Experimental Station, USDA, Jackson, TN;
A.V. Coomans, Universiteit Gent, Gent, Belgium;
J. Epps (deceased), West Tennessee Experimental Station, Jackson, TN;
A.T. De Grisse, Rijksuniversiteit Gent, Gent, Belgium;
M. Ichinohe, Ishihara Sangyo Kaisha, Ltd., Tokyo, Japan;
D.J. McLaren, National Institute for Medical Research, London, England;
C. Pooley, Plant Sciences Institute, Beltsville, MD;
J.N. Sasser (retired), North Carolina State University, Raleigh, NC;
A.M. Shepherd (retired), Rothamsted Experimental Station, Harpenden, Herts., England;
H.H. Triantaphyllou (retired) North Carolina State University, Raleigh, NC;
W.P. Wergin, Plant Sciences Institute, Beltsville, MD;
K.A. Wright (deceased), University of Toronto, Toronto, Canada;
U. Wyss, Christian-Albrechts-Universität, Kiel, Germany;
L.D. Young, West Tennessee Experimental Station, Jackson, TN.
Credit for the line drawings is given to R.B. Ewing (retired), Animal Parasitology Institute, Beltsville, MD.
Finally, my thanks is due to Sharon A. Ochs, support scientist, for her excellent technical assistance over many years. This assistance has included specimen preparation, ultramicrotomy, and photographic processing of electron micrographs, many of which were used in this atlas.
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