First report of potato rot nematode, Ditylenchus destructor Thorne, 1945 infecting Codonopsis pilosula in Gansu province, China

Chunhui Ni; Shuling Zhang; Huixia Li; Yonggang Liu; Wenhao Li; Xuefen Xu; Zhipeng Xu

doi:10.21307/jofnem-2020-087

First report of potato rot nematode, Ditylenchus destructor Thorne, 1945 infecting Codonopsis pilosula in Gansu province, China

J Nematol. 2020 Aug 31:52:e2020-87. doi: 10.21307/jofnem-2020-087. eCollection 2020.

Authors

Chunhui Ni¹, Shuling Zhang¹, Huixia Li¹, Yonggang Liu², Wenhao Li¹, Xuefen Xu¹, Zhipeng Xu¹

Affiliations

¹ College of Plant Protection, Gansu Agricultural University/Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Lanzhou, 730070, Gansu Province, China.
² Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou, 730070, Gansu Province, China.

Abstract

In November 2019, stem nematode was found on Codonopsis pilosula in Tanchang county, Gansu province, China. The population of stem nematode was identified on the basis of both molecular and morphological methods. The morphological and morphometric characteristics of this nematode population matched with Ditylenchus destructor Thorne, 1945. The sequences of rDNA-ITS and D2/D3 region of 28S-rRNA similarity with the D. destructor. The pathogenicity results revealed the symptom of dry rot on C. pilosula was caused by this nematode. To our knowledge, this is the first report that D. destructor on C. pilosula in China.

Keywords: Chinese herbal medicine; Ditylenchus destructor; Molecular biology; Morphology; New host.