Nyczepir A P, Reilly C C, Motsinger R E, Okie W R
J Nematol. 1988 Jan;20(1):40-6.
Host-parasite relationships of Criconemella xenoplax and C. ornata on Nemaguard peach and common bermudagrass were determined in the greenhouse. Criconemella xenoplax reproduced on peach and reduced root volume, height, and dry stem weight after 6 months, compared with the noninfested check. Numbers of C. ornata did not increase on peach or influence peach growth, but they did reduce dry top weight and root volume of common bermudagrass, compared with C. xenoplax. Criconemella xenoplax and C. ornata produced the enzyme beta-glucosidase and were capable of metabolizing prunasin, but only C. xenoplax produced beta-cyanoalanine synthase to detoxify the cyanide released from prunasin. The apparent inability of C. ornata to detoxify cyanide is one explanation why numbers of this species did not increase on peach. Criconemella xenoplax and C. ornata can be distinguished by using stylet length, vaginal configuration, and shape of the anterior head region.
在温室中测定了奇异环线虫（Criconemella xenoplax）和华丽环线虫（C. ornata）与Nemaguard桃和普通狗牙根之间的寄主-寄生虫关系。奇异环线虫在桃上繁殖，6个月后与未受侵染的对照相比，根体积、株高和茎干重降低。华丽环线虫的数量在桃上没有增加，也不影响桃的生长，但与奇异环线虫相比，它们确实降低了普通狗牙根的地上部干重和根体积。奇异环线虫和华丽环线虫都产生β-葡萄糖苷酶，并且能够代谢苦杏仁苷，但只有奇异环线虫产生β-氰丙氨酸合酶来解毒苦杏仁苷释放的氰化物。华丽环线虫明显无法解毒氰化物，这是该物种在桃上数量没有增加的一个原因。奇异环线虫和华丽环线虫可以通过口针长度、阴道形态和头部前端形状来区分。
