Tylenchorhynchus claytoni

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 : 20

Tylenchorhynchus claytoni

( Fig. 1 G–I)

Measurements. See Table 9 .

Remarks. Tylenchorhynchus claytoni was described from soil around roots of tobacco in SC by Steiner (1937). It has been recorded from 10 countries in Europe, 6 in Asia, 1 in Africa, 2 in North America, 1 in Central America, and 1 in Oceania (CABI 2009). In the USA, it occurs in 25 states ( Barker & Clayton 1973; Lucas et al. 1974; CABI 2009). Tylenchorhynchus claytoni occurred commonly in turf soils from Rhode Island ( Troll & Tarjan, 1954), Massachusetts ( Troll & Rohde 1966) and NC ( Lucas et al. 1974). In the present study, it was recovered from 25 counties in NC and SC. It was found in three turf management zones (green, fairway and tee) and three grass species (bermudagrass, creeping bentgrass, zoysiagrass) in SC and two turf management zones (green, fairway) and two grass species (bermudagrass and creeping bentgrass) in NC. The morphological features and morphometrics of these populations did not differ from previously described populations ( Steiner 1937; Loof 1974b; Golden et al. 1987).

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.