Filenchus cylindricus

Zeng, Yongsan, Ye, Weimin, Tredway, Lane, Martin, Samuel & Martin, Matt, 2012, Taxonomy and morphology of plant-parasitic nematodes associated with turfgrasses in North and South Carolina, USA, Zootaxa 3452, pp. 1-46 : 6

Filenchus cylindricus

( Fig. 1 J–M)

Measurements. See Table 1.

Remarks. The type population of F. cylindricus was first described as Tylenchus cylindricus from natural grassland adjacent to wheat fields near Presho and Winner, South Dakota, and Holbrook, Nebraska, by Thorne & Malek (1968). Elmiligy (1971) described another population from loamy sand around roots of Zea mays in Iowa as T. hageneri . Raski & Geraert (1987) synonymized T. hageneri with T. cylindricus and transferred both species to the genus Filenchus . This species has also been recorded from Bulgaria ( Katalan-Gateva & Tsoneva 1977), Romania ( Dobrin & Rosca 1996), Turkey ( Erdogus et al. 2010) and Pakistan ( Erum & Shahina, 2010). In the present study, F. cylindricus was found in samples from a bermudagrass tee in Horry County, SC. The morphological characteristics fit well with the description by Zeidan & Geraert (1991), but the morphometrics showed smaller body length and a value in females than in the described populations ( Zeidan & Geraert 1991). This is the first record of F. cylindricus from turfgrasses in SC.

Figures

FIGURE 1. Micrographs of Pratylenchus penetrans, Tylenchorhynchus claytoni and Filenchus cylindricus from turfgrasses in NC and SC. Scale bars: A, B, J = 50 μm; C-I, K-M = 20 μm. A, B. Entire body of P. penetrans. C. Pharyngeal region of P. penetrans. D, E. Female tails of P. penetrans. F. Male tail of P. penetrans. G. Pharyngeal region of T. claytoni. H. Female tail of T. claytoni. I. Male tail of T. claytoni. J. Entire body of F. cylindricus. K. Pharyngeal region of F. cylindricus. L. Vulval region of F. cylindricus. M. Female tail of F. cylindricus.