Morphological and Molecular Characteristics of Pratylenchus haiduongensis sp. n., a New Species of Root-Lesion Nematodes Associated with Carrot in Vietnam.

ABSTRACT: Pratylenchus haiduongensis sp. n. is described as associated with carrot (Daucus carota subsp. sativus (Hoffm.) Schübl. & G. Martens) in Hai Duong Province, Vietnam. P. haiduongensis sp. n. is characterized by the lip region with three annuli and slightly separated from the body. Stylet knobs are rounded (never indented anteriorly). The lateral field includes four incisures, bearing areolation at the pharynx region and tail region and occasionally appears in the vulval region. Sometimes the appearances of oblique broken striaes divide the lateral field into five or six incisures. The ovary is distinct with one row of oocytes. Spermatheca is oval in shape with round central cavity, without sperm or reduced in some specimens. The postvuval uterine sac is long surpassing

SUBMITTER: Nguyen TD 

PROVIDER: S-EPMC5644920 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature