Steinernema bertusi n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from South Africa

被引：12

作者：

Katumanyane, Agil ^{[1
]}

Malan, Antoinette P. ^{[2
]}

Tiedt, Louwrens R. ^{[3
]}

Hurley, Brett P. ^{[1
]}

机构：

[1] Univ Pretoria, FABI, Dept Zool & Entomol, ZA-0002 Pretoria, South Africa

[2] Stellenbosch Univ, Dept Conservat Ecol & Entomol, Dept AgriSci, Private Bag X1, ZA-7602 Stellenbosch, South Africa

[3] North West Univ, Lab Electron Microscopy, Potchefstroom Campus,Private Bag X6001, ZA-2520 Potchefstroom, South Africa

来源：

NEMATOLOGY | 2020年 / 22卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

cameroonense-clade; molecular; morphology; morphometrics; new species; phylogeny; taxonomy; PHYLOGENY; TRAVASSOS;

D O I：

10.1163/15685411-00003309

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Two isolates of Steinernema bertusi n. sp. were separately recovered from Tito, Mpumalanga, and Port Edward, Kwa Zulu Natal, South Africa. In this paper, we describe the isolates as a new entomopathogenic nematode (EPN) species using molecular and morphological methodologies. The new species belongs to the cameroonense-Glade, which consists of nematodes only isolated from the African continent. Steinementa bertusi n. sp. is characterised by having the longest infective juvenile (IJ) for this Glade at 716 (628-814) mu m. The IJ is further characterised by a body diam. of 32 (28-36) mu m and the pattern for the arrangement of the lateral ridges from head to tail is 2, 4, 5, 4, 2. The first-generation male spicule and gubernaculum length is 82 (72-88) mu m and 63 (54-72) mu m, respectively. Only 25% of the second-generation males possess a mucron. The first-generation females of S. bertusi n. sp. have a slightly protruding vulva, with double-flapped epiptygmata and a mucron at the posterior end. The new EPN species is most closely related to S. sacchari and is the sixth species to be included in the cameroonense-clade.

引用

页码：343 / 360

页数：18

共 29 条

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