Cactodera guizhouensis n. sp. (Nematoda: Heteroderinae), a new species of cyst-forming nematode parasitizing potato in Guizhou, China

Ni, Chun-Hui; Xie, Yu-Jia; Yang, Si-Hua; Yang, Zai-Fu; Xu, Chun-Ling; Xie, Hui

doi:10.1007/s10658-024-02816-1

Eur J Plant Pathol

2024

DOI: 10.1007/s10658-024-02816-1

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Cactodera guizhouensis n. sp. (Nematoda: Heteroderinae), a new species of cyst-forming nematode parasitizing potato in Guizhou, China

Chun-Hui Ni,

Yu-Jia Xie,

Si-Hua Yang

et al.

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2024

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Molecular and Morphological Characteristics of a Novel Cyst Nematode in the Rhizosphere of Artemisia lavandulaefolia DC. in Gansu Province, Northwest China

Guo,

Li,

Wei

et al. 2024

Pathogens

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Cyst nematodes are obligate parasitic nematodes found in the fields of many cultivated crops. These nematodes, which have great economic importance, pose a threat to food security, though they are frequently ignored or misdiagnosed as pests because of covert parasitism. A cyst nematode population parasitizing on Artemisia lavandulaefolia DC., one of the traditional Chinese medicines was collected in Gansu Province. The species was diagnosed using integrative taxonomy and molecular approaches. The cyst population is spherical or lemon-shaped, light brown or dark brown in color, with a long neck and a protruding vulval cone. The stylet of the second-stage juvenile is strong, and the front end of the ball at the base of the stylet is concave; the median bulb and excretory pore are prominent; the tail is blunt and circular, and the transparent tail is usually shorter than the stylet. A phylogenetic analysis was carried out using the internal transcribed spacer (ITS) and 28S genes of ribosomal DNA, which further confirmed the presence of Cactodera chenopodiae. According to our literature review, this is the first report on C. chenopodiae in Compositae. By following this research, we can better understand the challenges posed by A. lavandulaefolia DC. and develop effective strategies for managing its spread and impacts. This will help to protect vulnerable ecosystems and ensure the sustainability of agricultural and forestry activities in affected areas.

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Molecular and Morphological Characteristics of a Novel Cyst Nematode in the Rhizosphere of Artemisia lavandulaefolia DC. in Gansu Province, Northwest China

Guo,

Li,

Wei

et al. 2024

Pathogens

View full text Add to dashboard Cite

show abstract

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Cactodera guizhouensis n. sp. (Nematoda: Heteroderinae), a new species of cyst-forming nematode parasitizing potato in Guizhou, China

Cited by 1 publication

References 17 publications

Molecular and Morphological Characteristics of a Novel Cyst Nematode in the Rhizosphere of Artemisia lavandulaefolia DC. in Gansu Province, Northwest China

Molecular and Morphological Characteristics of a Novel Cyst Nematode in the Rhizosphere of Artemisia lavandulaefolia DC. in Gansu Province, Northwest China

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