First Report of <i>Rotylenchulus reniformis</i> on Tomato in Henan, China

Zhang, F.; Wang, Y.; Dai, Dan; Guo, Gia‐Luen; Guo, Song; Sun, Ming; Zhang, J.

doi:10.1094/pdis-09-18-1633-pdn

Cited by 4 publications

(4 citation statements)

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“…In this study, we provide the abundance and prevalence of some PPN encountered in major yam growing areas of Jiangxi and Shandong provinces of China. The 17 PPN species recovered in the present study have previously been described in China from a variety of other crops [4,[33][34][35][36] and yam in other parts of the world [4,11,33,37]. These five major occurring species (Pratylenchus coffeae, M. incognita, R. reniformis, H. dihystera, and Merlinius brevidens) on yam based on population density and frequency of occurrence were also verified with appropriate molecular analysis.…”

Section: Discussionsupporting

confidence: 63%

“…In this study, we provide the abundance and prevalence of some PPN encountered in major yam growing areas of Jiangxi and Shandong provinces of China. The 17 PPN species recovered in the present study have previously been described in China from a variety of other crops [ 4 , 33 , 34 , 35 , 36 ] and yam in other parts of the world [ 4 , 11 , 33 , 37 ]. These five major occurring species ( Pratylenchus coffeae , M .…”

Section: Discussionmentioning

confidence: 59%

“…In China, RKN species were also recorded to be widespread on yam and many other important crop plants in the south to northern regions of the country causing significant yield losses of 70% [ 41 , 42 ] as well as R . reniformis on tomatoes [ 36 ]. Merlinius spp.…”

Section: Discussionmentioning

confidence: 99%

“…RKN was the second most common species found in yam, followed by R. reniformis; both of these nematodes have previously been associated with yam in Costa Rica [37], Ghana [4], and Puerto Rico [40]. In China, RKN species were also recorded to be widespread on yam and many other important crop plants in the south to northern regions of the country causing significant yield losses of 70% [41,42] as well as R. reniformis on tomatoes [36]. Merlinius spp.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence and Molecular Diversity of Plant-Parasitic Nematodes of Yam (Dioscorea spp.) in China, with Focus on Merlinius spp.

Abdulsalam

Peng

Yao

et al. 2021

Biology

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There is little information about nematode pests associated with yam in China. Between 2020 and 2021, surveys of yam fields were conducted to investigate the abundance and prevalence of plant-parasitic nematodes in major yam growing areas. A total of 110 bulk soil samples from the yam rhizosphere and 48 yam tubers were collected from seven counties in Jiangxi and Shandong provinces. Standard protocols were used to extract nematodes from soil and tubers and identified at the genus level. In this study, 16 species and 13 nematode genera were recorded. The five most prominent species on the yam rhizosphere according to mean population densities were Pratylenchus coffeae (291/individuals), Meloidogyne (262/individuals), Rotylenchulus reniformis (225/individuals), Merlinius (224/individuals), and Helicotylenchus dihystera (171/individuals). In the tubers, the three most prominent species were Pratylenchus coffeae (415/individuals), Meloidogyne (331/individuals), and Rotylenchulus reniformis (115/individuals). These species were verified with appropriate molecular analysis. The high prevalence of the ectoparasite (Merlinius spp.) on the rhizosphere of yam also revealed that Merlinius spp. May be more important to yam than previously thought. Morphological and molecular analyses further confirmed the identity of the species as Merlinius brevidens and were characterized for the first time on yam in China. Minor morphometrical differences (slightly longer body and stylet) were observed in Chinese populations of M. brevidens compared to the original description. Additionally, this study reveals that M. brevidens isolated from China showed a higher nucleotide sequence in the ITS region compared to M. brevidens populations from India. This finding provides baseline information on the nematode pest occurrence on yam in China and calls for effective management.

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Section: Discussionsupporting

confidence: 63%

“…In this study, we provide the abundance and prevalence of some PPN encountered in major yam growing areas of Jiangxi and Shandong provinces of China. The 17 PPN species recovered in the present study have previously been described in China from a variety of other crops [ 4 , 33 , 34 , 35 , 36 ] and yam in other parts of the world [ 4 , 11 , 33 , 37 ]. These five major occurring species ( Pratylenchus coffeae , M .…”

Section: Discussionmentioning

confidence: 59%