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Type: Article
Published: 2023-02-02
Page range: 552-566
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Redescription and Molecular Characterization of Trichotylenchus dispersus (Nematoda: Dolichodoridae) in China

1Research Center of Nematodes of Plant Quarantine/Laboratory of Plant Nematology/Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
2Post-Entry Quarantine Station for Tropical Plant HaiKou Customs, Haikou 570100, China.
1Research Center of Nematodes of Plant Quarantine/Laboratory of Plant Nematology/Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
1Research Center of Nematodes of Plant Quarantine/Laboratory of Plant Nematology/Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
1Research Center of Nematodes of Plant Quarantine/Laboratory of Plant Nematology/Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Nematoda Banana rDNA sequences new geological record new host

Abstract

A species of Trichotylenchus nematode was isolated from the rhizosphere of banana root in Leizhou City, Guangdong Province, China. The species assumes the following characteristics: open C-shaped body; head offset from body; lateral field with three incisures, pharyngeal and tail regions irregularly areolated; stylet 18.6–20.7 µm long; pharyngeal gland not extending over intestine; fibrous tissue present in the intestine; post-anal intestinal sac present; elongate-subcylindroid tail, bluntly conoid terminus, lack of striations, and containing 34–44 annuli. In addition, scanning electron microscopy was used to elucidate some morphological details, but only some juveniles were observed. Partial 18S rRNA, ITS, and 28S D2–D3 expansion sequences were amplified with universal primers and deposited in GenBank under accession numbers ON622716, ON622717, and ON622714, respectively. Here, this species was identified as T. dispersus [(Siddiqi & Sharma, 1995) Geraert, 2011].

 

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