Phasmarhabditis hermaphrodita (Nematoda: Rhabditidae), a potential biocontrol agent isolated for the first time from invasive slugs in North America

被引:48
作者
De Ley, Irma Tandingan [1 ]
McDonnell, Rory D. [2 ]
Lopez, Sandy [2 ]
Paine, Timothy D. [2 ]
De Ley, Paul [1 ]
机构
[1] Univ Calif Riverside, Dept Nematol, Riverside, CA 92521 USA
[2] Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA
关键词
biological control; Deroceras laeve; Deroceras reticulatum; gastropods; Lehmannia valentiana; molecular; morphology; morphometrics; new record; slugs; systematics; taxonomy; BIOLOGICAL-CONTROL; MORPHOLOGY;
D O I
10.1163/15685411-00002838
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Phasmarhabditis hermaphrodita is reported for the first time in North America from cadavers of the invasive slug species Deroceras reticulatum, D. laeve and Lehmannia valentiana collected from three different locations in California, USA. Four isolates were identified using combined morphology, morphometrics and molecular sequence data for complete internal transcribed spacer (ITS-1, 5.8S, ITS-2), D2-D3 expansion segments of the large subunit (LSU or 28S) and nearly complete small subunit (SSU or 18S) ribosomal DNA. Extremely low sequence variations in the COI gene of the mitochondria were observed among US isolates as well as between US isolates and the two UK sequences. The occurrence of P. hermaphrodita in North America has regulatory implications for potential biological control strategies against non-native gastropod species that are pests in ornamental and agricultural cultivation on this continent. The D2-D3 sequence of the LSU rDNA is new for the species.
引用
收藏
页码:1129 / 1138
页数:10
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