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Zhang C, Munawar M, Castillo P, Han S, Zheng J. Description of Hemicycliophora geraerti n. sp. (Tylenchida: Hemicycliophoridae) associated with Prunus persica L. from China. NEMATOLOGY 2022. [DOI: 10.1163/15685411-bja10210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Summary
Hemicycliophora species are migratory root ectoparasites of higher plants, commonly known as sheath nematodes. The present study describes a new species, Hemicycliophora geraerti n. sp., recovered from the rhizosphere of peach tree (Prunus persica) in Zhejiang Province, China. This species is characterised by a cuticular sheath loosely fitting to the body, a lip region slightly set-off with body contour bearing 3-4 annuli, oral plate narrow, ovate, and non-protruding, amphidial apertures plugged, dorsoventrally flanked in the first lip annulus, stylet 110 (103-116) μm long and flexible, excretory pore located 4-7 annuli posterior to the base of the pharyngeal bulb; vulval lips modified with a small vulval sleeve, anus located 16 (13-21) annuli posterior to vulva, tail elongated, having a narrowly rounded slightly offset spike. The molecular characterisation and phylogenetic analyses based on D2-D3 expansion segments of the 28S rRNA, ITS rRNA, and COI mtDNA gene indicated the unique status and support the novelty of this population of Hemicycliophora, therefore herein described as H. geraerti n. sp.
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Affiliation(s)
- Chenying Zhang
- Laboratory of Plant Nematology, Institute of Biotechnology, College of Agriculture & Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, P.R. China
| | - Maria Munawar
- Department of Biological Sciences, University of Lethbridge, 4401 University Drive West, Lethbridge, AB, Canada T1K 3M4
| | - Pablo Castillo
- Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Campus de Excelencia Internacional Agroalimentario, ceiA3, Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
| | - Shaojie Han
- Laboratory of Plant Nematology, Institute of Biotechnology, College of Agriculture & Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, P.R. China
- Department of Plant Protection, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Hangzhou 310058, P.R. China
| | - Jingwu Zheng
- Laboratory of Plant Nematology, Institute of Biotechnology, College of Agriculture & Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, P.R. China
- Department of Plant Protection, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Hangzhou 310058, P.R. China
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First Report of Hemicycliophora Conida from Russia. Helminthologia 2022; 59:317-320. [PMID: 36694825 PMCID: PMC9831520 DOI: 10.2478/helm-2022-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 07/19/2022] [Indexed: 12/23/2022] Open
Abstract
A population of the sheath nematodes, identified as Hemicycliophora conida, has been reported from a natural habitat in Moscow, Russia. This paper includes morphological, morphometric and molecular data of the population.
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First Report of an Important Sheat Nematode, Hemicycliophora Poranga, Associated with Sugar Beet ( Beta Vulgaris L.) in Vietnam. Helminthologia 2021; 58:333-338. [PMID: 34934396 PMCID: PMC8647952 DOI: 10.2478/helm-2021-0033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/23/2021] [Indexed: 11/23/2022] Open
Abstract
Several species of the sheat nematodes, Hemicycliophora spp., have been known to cause significant damage to agricultural crops, including Hemicycliophora arenaria, H. conida, H. parvana, H. poranga, H. similis, and H. typica. Remarkably, our study reported on the presence of H. poranga for the first time in Vietnam. This species was found on 83.33% of the total samples with an average density of 270 individuals/100ml of soil (positive samples). In this study, the Vietnamese population of H. poranga was characterized based on both morphology and molecular characterization of D2-D3 expansion segment of 28S rRNA sequence. Besides, a molecular phylogenetic tree of the genus Hemicycliophora was also provided.
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