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research-article | 06-November-2020

Morphological and molecular characterizations of Heterodera oryzae in Korea

graminicola, Hirschmanniella oryzae, Pratylenchus zea, Aphelechoides besseyi, Ditylenchus angustus, Pratylenchus indicus, and some cyst nematodes especially Heterodera oryzicola (Prasad et al., 1987; Jairajpuri, 2019). Four species of cyst nematodes infect rice viz Heterodera elachista, H. oryzicola, H. sacchari, and H. oryzae (Nobbs et al., 1992). Although cyst nematodes have been reported in rice from other countries neighboring South Korea such as China and Japan; no practical studies have indicated

Rose Mwesige, Eun-Hwa Kim, Eun-Hyung Park, Hyoung-Rai Ko

Journal of Nematology, Volume 52 , 1–12

research-article | 24-November-2020

Description of Heterodera microulae sp. n. (Nematoda: Heteroderinae) from China – a new cyst nematode in the Goettingiana group

Cyst-forming nematodes are the economical pests of cultivated crops and known to be reported from all the continents (Jones et al., 2013). The genus Heterodera was erected by Schmidt (1871) and currently contains about 80 species (Subbotin et al., 2010). Literature studies have indicated the presence of 14 Heterodera species from China mainland, including H. avenae (Chen et al., 1991), H. glycines (Liu et al., 1994), H. sinensis (Chen and Zheng, 1994), H. filipjevi (Li et al., 2010), H. koreana

Wenhao Li, Huixia Li, Chunhui Ni, Deliang Peng, Yonggang Liu, Ning Luo, Xuefen Xu

Journal of Nematology, Volume 52 , 1–16

Article | 21-July-2017

New Cyst Nematode, Heterodera sojae n. sp. (Nematoda: Heteroderidae) from Soybean in Korea

A new soybean cyst nematode Heterodera sojae n. sp. was found from the roots of soybean plants in Korea. Cysts of H. sojae n. sp. appeared more round, shining, and darker than that of H. glycines. Morphologically, H. sojae n. sp. differed from H. glycines by fenestra length (23.5–54.2 mm vs. 30–70 mm), vulval silt length (9.0–24.4 mm vs. 43–60 mm), tail length of J2 (54.3–74.8 mm vs. 40–61 mm), and hyaline part of J2 (32.6–46.3 mmvs. 20


Journal of Nematology, Volume 48 , ISSUE 4, 280–289

research-article | 17-March-2020

Molecular and morphological characterization of the alfalfa cyst nematode, Heterodera medicaginis, from Utah

The alfalfa cyst nematode, Heterodera medicaginis Kirjanova in the study of Kirjanova and Krall (1971) was originally described from the USSR in 1971 and re-described by Gerber and Maas (1982). The distribution of H. medicaginis is mostly Europe (Russia and Ukraine) and Asia (Kazakhstan and Uzbekistan) (Subbotin et al., 2010). This cyst nematode species can cause up to 46% green matter losses in lucerne under arid conditions (Artokhnica, 1984; Subbotin et al., 2010). More recently, the first

Zafar A. Handoo, Andrea M. Skantar, Saad L. Hafez, Mihail R. Kantor, Maria N. Hult, Stephen A. Rogers

Journal of Nematology, Volume 52 , 1–4

research-article | 24-April-2019

DNA barcoding evidence for the North American presence of alfalfa cyst nematode, Heterodera medicaginis

Alfalfa cyst nematode, Heterodera medicaginis (Kirjanova & Krall, 1971) was originally described from the USSR in 1971 and redescribed by Gerber and Maas (1982). The redescription added information missing in the original description regarding juvenile and male stages (Gerber and Maas, 1982). Host testing was conducted for the redescription that included 20 plant species from 7 plant families. These tests included Glycine max, Medicago lupulina, M. sativa, Phaseolus vulgaris, Pisum sativum

Thomas Powers, Andrea Skantar, Tim Harris, Rebecca Higgins, Peter Mullin, Saad Hafez, Zafar Handoo, Tim Todd, Kirsten Powers

Journal of Nematology, Volume 51 , 1–17

research-article | 30-November-2019

Effect of Heterodera schachtii female age on susceptibility to three fungal hyperparasites in the genus Hyalorbilia

The ascomycete fungus Hyalorbilia aff. multiguttulata DoUCR50 (basionym: Dactylella oviparasitica DoUCR50) is a hyperparasite of the sugarbeet cyst nematode, Heterodera schachtii. It is the causal agent of a long-term population suppression of this nematode in field 9E at the University of California Riverside Agricultural Operations (Borneman and Becker, 2007). Dactylella oviparasitica was re-named Brachyphoris oviparasitica (Chen et al., 2007) and subsequently assigned to the teleomorphic

J. Smith Becker, J. Borneman, J. O. Becker

Journal of Nematology, Volume 52 , 1–12

research-article | 23-April-2019

Nematicidal Activity of Fosthiazate Against Soybean Cyst Nematode Heterodera glycines

Soybean (Glycine max, Family Leguminosae) is widely grown worldwide due to its unique property of possessing high plant-based protein contents, lipid minerals, and vitamins (Olaoye and Ade-Omowaye, 2011). Soybean cyst nematode (SCN, Heterodera glycines) infection is the most serious disease affecting soybean production worldwide; this infection was reported for the first time in 1899 in Northeast China, since then, this nematode has been spread widely in various regions, including Asia, America

Hai Yan Wu, Man Luo, Lu Yuan Zhang, Xun Bo Zhou

Journal of Nematology, Volume 51 , 1–9

research-article | 30-November-2019

Morphological and molecular characterization of Heterodera dunensis n. sp. (Nematoda: Heteroderidae) from Gran Canaria, Canary Islands

The cysts forming nematodes of the genus Heterodera Schmidt, 1871 (Nematoda: Heteroderidae) are an economically important plant-parasitic nematode (PPN) group with a worldwide distribution and a broad host range causing prominent damages to the host plants ranging from stunted and reduced growth to wilting, chlorosis, and reduced root system (Perry et al., 2018; Sikora et al., 2018). The vermiform second-stage juveniles (J2) of this PPN migrate in the root system of a host plant to feed on the

Phougeishangbam Rolish Singh, Gerrit Karssen, Marjolein Couvreur, Wim Bert

Journal of Nematology, Volume 52 , 1–14

research-article | 30-November-2018

Resistance and tolerance reactions of winter wheat lines to Heterodera filipjevi in Turkey

). Recently, Wuletaw et al. (2016) also reviewed wheat production in Sub-Saharan Africa under a changing climate. Cereal cyst nematode (Heterodera avenae complex; CCN) is found globally and leads to significant economic yield losses, particularly in areas where dryland and cereal monoculture systems are practiced (Nicol et al., 2003; Dababat et al., 2015). After hatching, second-stage juvenile (J2) cyst nematodes start attacking the roots of the plant and begin feeding. The J2s penetrate the root system

Abdelfattah A. Dababat

Journal of Nematology, Volume 51 , 1–12

Research Article | 17-October-2018

First Report of the Yellow Nutsedge Cyst Nematode, Heterodera cyperi, in Georgia, U.S.A.

vegetable (2 cysts/100 cm3 of soil) sites had similar morphological features. Morphology and morphometric measurements of the cysts and J2 (Fig. 1A–C) were in agreement with those of Heterodera cyperi (Golden et al., 1962; Romero and López-Llorca, 1996). Measurements of J2 (n = 12) included the length (range = 443–494 μm, mean = 467.4 μm) and width (18.3–24.4 μm, 20.6 μm) of body, stylet (19.1–20.8 μm, 20.3 μm), tail (61.6.0–66.4 μm, 64.2 μm), body width at anus (11.9–14.1 μm, 12.8 μm), and hyaline tail

Abolfazl Hajihassani, Bhabesh Dutta, Ganpati B. Jagdale, Sergei A. Subbotin

Journal of Nematology, Volume 50 , ISSUE 3, 456–458

research-article | 30-November-2018

Development of a decision support system for managing Heterodera schahtii in sugar beet production

Zahra S. Omer, Jens Levenfors, Susanne Andersson, Ann-Charlotte Wallenhammar

Journal of Nematology, Volume 51 , 1–11

Article | 24-July-2017

First Report of the Fig Cyst Nematode, Heterodera fici Kirjanova, on Fig Tree, Ficus carica, in Ontario, Canada

Although fig trees are a popular ornamental fruit tree in subtropical regions, some hardy species, such as Ficus carica, have been grown in the west coast of British Columbia and southern Ontario in Canada. The fig cyst nematode, Heterodera fici Kirjanova, is a pest on fig plants, and the heavy infestation can cause retarded growth and yellowing of leaves (Maqbool et al., 1987). In the spring of 2016, a sample of rhizosphere from a potted fig (F. carica) seedling was submitted to the


Journal of Nematology, Volume 49 , ISSUE 2, 131–132

research-article | 17-March-2020

The effects of Meloidogyne incognita and Heterodera glycines on the yield and quality of edamame (Glycine max l.) in Arkansas

(Wrather and Koenning, 2003, 2006). Two nematodes of major concern for soybean production in Arkansas include the soybean cyst nematode (Heterodera glycines, Ichinoe) and the southern root-knot nematode (Meloidogyne incognita, Kofoid & White, Chitwood). Both nematodes have been historically present in Arkansas soybean and cotton fields (Kirkpatrick et al., 1992; Bateman et al., 2000; Walter and Barker, 1994; Tylka and Marett, 2014). A survey from 2018 identified that soybean cyst and root-knot nematode

J. E. Wilkes, T. L. Kirkpatrick

Journal of Nematology, Volume 52 , 1–15

research-article | 30-November-2018

Active and inactive forms of biotin synthase occur in Heterodera glycines

The soybean cyst nematode (SCN), Heterodera glycines, is an obligate plant parasite that poses a serious threat to soybean production worldwide. It is the most damaging pest of soybean in the USA and is estimated to cause more yield loss than any other disease (Koenning and Wrather, 2010; Wrather et al., 2010; Allen et al., 2017). Yield losses are attributed to the fact that this nematode injects a complex mixture of proteins and metabolites into the plant root cells (Niblack et al., 2006) and

Khee Man Kwon, Sadia Bekal, Leslie L. Domier, Kris N. Lambert

Journal of Nematology, Volume 51 , 1–12

Research Article | 31-May-2018

Identification of HG Types of Soybean Cyst Nematode Heterodera glycines and Resistance Screening on Soybean Genotypes in Northeast China

Soybean cyst nematode (SCN, Heterodera glycines Ichinohe) is a serious soybean pathogen worldwide. HG Type 0 had been a predominant SCN in Heilongjiang province, the largest soybean (Glycine max L.) producing region in China. Recently, increased virulence on resistant cultivars originally developed for resistance to HG Type 0 was observed in fields. In order to identify new cultivars resistant to local SCN populations, two soil samples were collected from two counties (Anda and Wuchang) in

Cui Hua, Chunjie Li, Yanfeng Hu, Yanzhi Mao, Jia You, Mingze Wang, Jingsheng Chen, Zhongyan Tian, Congli Wang

Journal of Nematology, Volume 50 , ISSUE 1, 41–50

Research Article | 03-December-2018

Effector gene vap1 based DGGE fingerprinting to assess variation within and among Heterodera schachtii populations

Populations of beet cyst nematodes Heterodera schachtii vary in aggressiveness and virulence toward sugar beet varieties, but also in traits like host range, or decline rate in the field. Diversity of their essential pathogenicity gene vap1 is shaped by diversifying selection and gene flow. The authors developed a technique to study inter-population variation and intra-population diversity and dynamics of H. schachtii based on the gene vap1. Degenerate primers were designed to amplify, clone

Rasha Haj Nuaima, Johannes Roeb, Johannes Hallmann, Matthias Daub, Sandra Otte, Holger Heuer

Journal of Nematology, Volume 50 , ISSUE 4, 517–528

Article | 05-December-2017

A New Race (X12) of Soybean Cyst Nematode in China

The soybean cyst nematode (SCN), Heterodera glycines, is a serious economic threat to soybean-producing regions worldwide. A new SCN population (called race X12) was detected in Shanxi province, China. Race X12 could reproduce on all the indicator lines of both race and Heterodera glycines (HG) type tests. The average number of females on Lee68 (susceptible control) was 171.40 with the lowest Female Index (FI) 61.31 on PI88788 and the highest FI 117.32 on Pickett in the race test. The average


Journal of Nematology, Volume 49 , ISSUE 3, 321–326

Article | 05-December-2017

Nematicidal Effects of 5-Aminolevulinic Acid on Plant-Parasitic Nematodes

incognita, Heterodera glycines, Pratylenchus coffeae, and Bursaphelenchus xylophilus. A series of in vitro assays and one greenhouse trial were conducted to examine the nematicidal effects of ALA. The results demonstrated that ALA exhibited a strong effect of suppression against the four nematodes tested. ALA also inhibited hatching of M. incognita and H. glycines. Results from the greenhouse experiment indicated that treatment of soil with 6.0 mM ALA significantly reduced the root-gall index (RGI) and


Journal of Nematology, Volume 49 , ISSUE 3, 295–303

research-article | 17-March-2020

Fungal communities associated with Heterodera glycines and their potential in biological control: a current update

The soybean cyst nematode (Heterodera glycines, SCN) was discovered as a significant pest of soybean in 1954 in North Carolina in the USA, and subsequently spread across a few counties in Arkansas, Missouri, Kentucky and Tennessee, as well as few other pockets in North Carolina (Winstead and Skotland, 1955). In 2014, bolstered by the increase in planting of soybean, the SCN has become a significant plant health issue all over the agrarian eastern continental United States as well as Hawaii and

Deepak Haarith, Kathryn E. Bushley, Senyu Chen

Journal of Nematology, Volume 52 , 1–17

Research Article | 03-September-2018

An Agent-Based Metapopulation Model Simulating Virus-Based Biocontrol of Heterodera Glycines

Safyre Anderson, Chinmay Soman, Sadia Bekal, Leslie Domier, Kris Lambert, Kaustubh Bhalerao

Journal of Nematology, Volume 50 , ISSUE 2, 79–90

Research Article | 03-September-2018

First Report of Carrot Cyst Nematode Heterodera carotae in Mexico: Morphological, Molecular Characterization, and Host Range Study

During 2008 to 2016 in several nematological surveys in the Tepeaca Valley, Puebla, Mexico, carrot cyst nematode, Heterodera carotae was found parasitizing carrots, Daucus carota. The nematode was present in 61% of the sampled fields with high population densities, causing severe carrot yield losses in the Tepeaca Valley. The aim of this work was to study morphology, morphometrics, host range, and molecular characterization of the nematode. The morphological and morphometric characterization

Ilia Mariana Escobar-Avila, Edgar Óliver López-Villegas, Sergei A. Subbotin, Alejandro Tovar-Soto

Journal of Nematology, Volume 50 , ISSUE 2, 229–242

research-article | 30-November-2018

Validation of the Chemotaxis of Plant Parasitic Nematodes Toward Host Root Exudates

). In contrast, it is widely accepted that PPN selectively target host, but not non-host, plant roots (Nicol et al., 2011). The most well characterized target selectivity of nematodes was described using maize roots and an entomopathogenic nematode, Heterodera megidis (Rasmann et al., 2005). In response to the feeding of western corn rootworm (WCR) larvae, maize roots emit a volatile compound (E)-β-caryophyllene to strongly attract H. megidis which in turn parasitizes and kills WCR larvae within a

Wenshan Liu, Alexis L. Jones, Heather N. Gosse, Kathy S. Lawrence, Sang-Wook Park

journal of nematology, Volume 51 , 1–10

research-article | 30-November-2020

Slight induction and strong inhibition of Heterodera glycines hatching by short-chain molecules released by different plant species

Soybean (Glycine max (L.) Merr) is an important source of proteins and oil, and therefore, more research are essential to increase productivity under different conditions, including biotic stress (Pagano and Miransari, 2016). The soybean cyst nematode (SCN, Heterodera glycines) is one of the main pathogens causing yield reduction worldwide and, just in the United States it is responsible for losses of more than U$1 billion annually (Koenning and Wrather, 2010; Wu et al., 2019). The planting of

Jeanny A. Velloso, Vicente P. Campos, Willian C. Terra, Aline F. Barros, Márcio P. Pedroso, Luma A. Pedroso, Letícia L. Paula

Journal of Nematology, Volume 53 , 1–12

research-article | 03-June-2019

Field and greenhouse evaluations of soil suppressiveness to Heterodera glycines in the Midwest corn-soybean production systems

Soybean cyst nematode (SCN), Heterodera glycines Ichinohe, is widely distributed throughout most soybean producing regions in the world (Riggs, 2004). This nematode has become a major yield-limiting factor in soybean production and causes an estimated annual yield loss of about $1 billion in the USA (Koenning and Wrather, 2010). Crop rotation, cultural practices, resistant cultivars, and nematicides are employed to reduce soybean yield suppression caused by SCN. Particularly, rotation of SCN

Weiming Hu, Eyob Kidane, Deborah A. Neher, Senyu Chen

Journal of Nematology, Volume 51 , 1–12

research-article | 30-November-2021

Review of nematode interactions with hemp (Cannabis sativa)

the terms “Cannabis × nemato*” and “hemp × nemato*”. The abstract of each article was read to determine if its subject matter concerned plant-parasitic nematodes and Cannabis sativa, as many hits dealt with sunn hemp (Crotalaria juncea L.), Bombay hemp or kenaf (Hibiscus cannabinus L.) and other plants. To determine the total number of records for root-knot nematodes, the terms “Meloidogyne”, “Heterodera radicicola” and “Heterodera marioni” were searched. Because Web of Science contains a number

Ernest C. Bernard, Angel G. Chaffin, Kimberly D. Gwinn

Journal of Nematology, Volume 54 , 1–18

research-article | 30-November-2020

Differences in distribution and community structure of plant-parasitic nematodes in pecan orchards between two ecoregions of Georgia

, Xiphinema, Paratylenchus, Hemicycliophora, Heterodera Rockdale Meloidogyne, Paratrichodorus, Mesocriconema, Helichotylenchus, Xiphinema Spalding Meloidogyne, Mesocriconema, Tylenchorhynchus, Helichotylenchus, Xiphinema Walton Meloidogyne, Hoplolaimus, Pratylenchus, Paratrichodorus, Mesocriconema, Tylenchorhynchus, Helichotylenchus, Hemicycliophora, Xiphenema Coastal Plain region Appling Meloidogyne, Hoplolaimus, Paratrichodorus, Mesocriconema, Helichotylenchus Berrien Meloidogyne

Ganpati B. Jagdale, Timothy B. Brenneman, Paul M. Severns, David Shapiro-Ilan

Journal of Nematology, Volume 53 , 1–14

Article | 24-July-2017

Sampling Error in Relation to Cyst Nematode Population Density Estimation in Small Field Plots


Journal of Nematology, Volume 49 , ISSUE 2, 150–155

research-article | 30-November-2018

Swine manure application enriches the soil food web in corn and soybean production

management of plant-parasitic nematodes is necessary to optimize crop productivity (Grabau and Chen, 2016a, 2016b) and non-parasitic, free-living nematodes contribute to and are sensitive indicators of soil fertility and ecology (Bongers, 1990; Ferris et al., 2001). In particular, soybean cyst nematode (Heterodera glycines) is the major yield-limiting pest in soybean production (Koenning and Wrather, 2010). Additional strategies to manage this pest are needed because management relies on a narrow set of

Zane J. Grabau, Yong Bao, Jeffrey A. Vetsch, Senyu Chen

Journal of Nematology, Volume 51 , 1–14

research-article | 30-November-2020

Announcement of WormAtlas partnership with the Journal of Nematology

Nathan E. Schroeder, David H. Hall

Journal of Nematology, Volume 53 , 1–2

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