 |
3 Spore of Pasteuria nishizwae attached to a juvenile of Heterodera glycines (the soybean cyst nematode). The exosporium (a membrane that covers the spore during sporogenesis) has been retained. Photo by R. M. Sayre |
 |
4 Spore of Pasteuria nishizwae attached to a juvenile Heterodera glycines. The exposporium has been lost. Photo by R. M. Sayre |