title: Description of a new Pratylenchus species from China (Tylenchida, Pratylenchidae).
abstract: Pratylenchus ekrami from maize (Zea mays) roots in Shenyang and luffa (Luffa cylindrica) roots in Dalian, China, are described in this paper. Nematodes from the two areas were identified consistently, and were characterized by a heavy cephalic sclerotization, extending posteriorly up to two body annuli, stylet 11-13 μm long, elongating conoid tail, and becoming thinner from vulva. Males were not found. Pratylenchus ekrami is close to Pratylenchus vulnus, but the most critical characteristics between the two species were the number of lip annuli, stylet size, and shape of stylet knobs. This species is the first reported in China.
  
  
  
  Pratylenchus ekramifrom maize (Zea mays) roots in Shenyang and luffa (Luffa cylindrica) roots in Dalian, China, are described in this paper. Nematodes from the two areas were identified consistently, and were characterized by a heavy cephalic sclerotization, extending posteriorly up to two body annuli, stylet 11-13 μm long, elongating conoid tail, and becoming thinner from vulva. Males were not found.Pratylenchus ekramiis close toPratylenchus vulnus, but the most critical characteristics between the two species were the number of lip annuli, stylet size, and shape of stylet knobs. This species is the first reported in China.
authors.affiliation: Nematology Institute of Northern China, Shenyang Agricultural University, Shenyang 110866, China. duanyx6407@163.com.
authors.forename: Ning
authors.initials: N
authors.lastname: Liu
authors.forename: Xiao-Song
authors.initials: XS
authors.lastname: Zhou
authors.forename: Li-Jie
authors.initials: LJ
authors.lastname: Chen
authors.forename: Yu-Xi
authors.initials: YX
authors.lastname: Duan
mesh_terms: D000818:Animals; D002681:China; D005260:Female; D008297:Male; D010935:Plant Diseases / Q000469:parasitology*; D012987:Soil / Q000469:parasitology; D017187:Tylenchida / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification*; D003313:Zea mays / Q000469:parasitology*
chemical_list: D012987:Soil
keywords: Pratylenchidae; Pratylenchus; Pratylenchus ekrami; new record species