Save

Description of Ironus telperionensis n. sp. (Nematoda: Ironidae) and two known species of Chronogaster (Nematoda: Chronogastridae) and Paraphanolaimus (Nematoda: Aphanolaimidae) from the Telperion Nature Reserve (Mpumalanga, South Africa)

In: Nematology
Authors:
Chantelle GirganNematology Unit, Biosystematics Division, Agricultural Research Council-Plant Health and Protection, Private Bag X134, Queenswood 0121, South Africa

Search for other papers by Chantelle Girgan in
Current site
Google Scholar
PubMed
Close
,
Ebrahim ShokoohiGreen Biotechnologies Research Centre of Excellence, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa

Search for other papers by Ebrahim Shokoohi in
Current site
Google Scholar
PubMed
Close
,
Mariette MaraisNematology Unit, Biosystematics Division, Agricultural Research Council-Plant Health and Protection, Private Bag X134, Queenswood 0121, South Africa

Search for other papers by Mariette Marais in
Current site
Google Scholar
PubMed
Close
,
Hendrika FourieUnit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa

Search for other papers by Hendrika Fourie in
Current site
Google Scholar
PubMed
Close
,
Lourens TiedtLaboratory for Electron Microscopy, North-West University, Private Bag X 6001, Potchefstroom 2520, South Africa

Search for other papers by Lourens Tiedt in
Current site
Google Scholar
PubMed
Close
, and
Antoinette SwartNematology Unit, Biosystematics Division, Agricultural Research Council-Plant Health and Protection, Private Bag X134, Queenswood 0121, South Africa
Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa

Search for other papers by Antoinette Swart in
Current site
Google Scholar
PubMed
Close
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

$34.95

Summary

A nematode survey conducted in the Telperion Nature Reserve (Mpumalanga, South Africa) resulted in a new Ironus species being described as well as two known species reported for the first time from South Africa, viz., Chronogaster aspinata and Paraphanolaimus behningi. Ironus telperionensis n. sp. is characterised by a long (1724 (1456-1864) μm) and slender body (50 times longer than mid-body diam.), long stoma (116 (87-129) μm), and a 235 (212-257) μm long tail with a ventral curl at the tip. The new species is morphologically most similar to I. ignavus and I. paludicola. However, the new species can be separated from I. ignavus based on the lower ratio c (7.3 (6.5-8.0) vs 8.0-11.0) and longer stoma (116 (87-129) vs 76-90 μm). Ironus telperionensis n. sp. can be distinguished from I. paludicola by the lower ratio a (49.2 (37.4-53.0) vs 60.0-80.0) and lower ratio c (7.3 (6.5-8.0) vs 8.0-13.0). The 18S rDNA phylogenetic analysis of I. telperionensis n. sp. placed it close to I. elegans (KC133064), whereas the 28S rDNA phylogenetic analysis placed it close to I. tenuicaudatus. The phylogenetic analysis revealed that Ironus is a monophyletic group. Paraphanolaimus behningi was identified based on anteriorly bent vagina in the female, spicule length (106 or 110 μm) and number of supplements (13 or 14) in the male. Chronogaster aspinata was identified based on body length (1127 or 1203 μm), cephalic setae length (7 μm), finely rounded tail terminus without a mucron or additional spines, and no longitudinal ridges. It fits the known description of the species. Although various differences were observed between previously reported populations of these species, the morphometrics of the specimens found in Telperion widen the existing variation in these two species.

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 402 186 11
Full Text Views 17 8 0
PDF Views & Downloads 50 17 0