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Journal of Nematology

Society of Nematologists

Subject: Life Sciences

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ISSN: 0022-300X
eISSN: 2640-396X

DESCRIPTION

FEATURED ARTICLES

Enhanced entomopathogenic nematode yield and fitness via addition of pulverized insect powder to solid media
Nematotoxic coumarins from Angelica pubescens Maxim. f. biserrata Shan et Yuan roots and their physiological effects on Bursaphelenchus xylophilus
Broad-based root-knot nematode resistance identified in cowpea gene-pool two
Description of Pseudacrobeles (Pseudacrobeles) curvatus sp. n. (Cephalobidae: Rhabditida) in South Korea

VOLUME 49 , ISSUE 4 (September 2017) - List of articles

Chemical Signals of Vector Beetle Facilitate the Prevalence of a Native Fungus and the Invasive Pinewood Nematode

BIN ZHANG/ WEI ZHANG/ MIN LU/ FAHEEM AHMAD/ HAOKAI TIAN/ JING NING/ XIAOLONG LIU/ LILIN ZHAO/ JIANGHUA SUN

In China, the invasive Bursaphelenchus xylophilus, the vector Monochamus alternatus beetle, and associated fungi exhibit a symbiotic relationship causing serious losses to pine forests. Although this complex system has been intensively investigated, the role of vector beetles on the development of associated fungi and their indirect contribution to the prevalence of pinewood nematode (PWN) is yet unknown. Here, three of the highly prevalent fungal species, viz., Sporothrix sp. 1, Ophiostoma ips,(..)

DOI: 10.21307/jofnem-2017-081

Modeling Host-Microbiome Interactions in Caenorhabditis elegans

TEKLU K. GERBABA/ LUKE GREEN-HARRISON/ ANDRE G. BURET

The microbiome influences host processes including nutritional availability, development, immunity, and behavioral responses. Caenorhabditis elegans is a powerful model to study molecular mechanisms of host–microbial interactions. Recent efforts have been made to profile the natural microbiome of C. elegans, laying a foundation for mechanistic studies of host–microbiome interactions in this genetically tractable model system. Studies using single-species microbes, multi-microbial systems, and hu(..)

DOI: 10.21307/jofnem-2017-082

A Model for Evolutionary Ecology of Disease: The Case for Caenorhabditis Nematodes and Their Natural Parasites

AMANDA K. GIBSON/ LEVI T. MORRAN

Many of the outstanding questions in disease ecology and evolution call for combining observation of natural host–parasite populations with experimental dissection of interactions in the field and the laboratory. The “rewilding” of model systems holds great promise for this endeavor. Here, we highlight the potential for development of the nematode Caenorhabditis elegans and its close relatives as a model for the study of disease ecology and evolution. This powerful laboratory model was disassoci(..)

DOI: 10.21307/jofnem-2017-083

Secondary Metabolites Produced by Heterorhabditis Symbionts and Their Application in Agriculture: What We Know and What to Do Next

S. PATRICIA STOCK/ AYAKO KUSAKABE/ ROUSEL A. OROZCO

Gram-negative Photorhabdus bacteria have a dual lifestyle: they are mutualists of Heterorhabditis nematodes and are pathogens of insects. Together, this nematode–bacterium partnership has been used to successfully control a wide range of agricultural insect pests. Photorhabdus produce a diverse array of small molecules that play key biological roles in regulating their dual roles. In particular, several secondary metabolites (SM) produced by this bacterium are known to play a critical role in th(..)

DOI: 10.21307/jofnem-2017-084

First Report of Estonian Cyst Nematode Cactodera estonica from India

C. SARANYA/ P. SUNDARARAJ/ PRIYANK H. MHATRE/ E. P. VENKATASALAM/ S. NIVITHA

DOI: 10.21307/jofnem-2017-085

Oat, Wheat, and Sorghum Genotype Reactions to Meloidogyne incognita and Meloidogyne javanica

ANDRESSA LIMA DE BRIDA/ ÉRIKA CRISTINA SOUZA DA SILVA CORREIA/ BÁRBARA MONTEIRO DE CASTRO E CASTRO/ JOSÉ COLA ZANUNCIO/ SÍLVIA RENATA SICILIANO WILCKEN

Meloidogyne spp. are the most economically important species of plant-pathogenic nematodes. Plant resistance and crop rotation are the main nematode management methods. Thus, the objective was to evaluate the resistance of seven wheat genotypes, five oat genotypes, ten sorghum hybrids, and three sorghum–sudangrass genotypes to Meloidogyne incognita and Meloidogyne javanica. The crops were sowed in pots with an auto-claved substrate. A single plant/pot was left after thinning. The soil was infest(..)

DOI: 10.21307/jofnem-2017-086

First Report of Matricidal Hatching in Bursaphelenchus xylophilus

ADELA ABELLEIRA/ ALICIA PRADO/ ANDREA ABELLEIRA-SANMARTÍN/ PEDRO MANSILLA

The reproductive strategy of the pinewood nematode (PWN), Bursaphelenchus xylophilus, is sexual amphimictic and oviparous. The incidence of intrauterine egg development and hatching in plant-parasitic nematodes is not a very common phenomenon. During the process of maintaining and breeding a B. xylophilus population isolated in Spain under laboratory conditions, evidence of matricidal hatching was observed. This is the first described case of this phenomenon in this species.

DOI: 10.21307/jofnem-2017-087

First Reports, Morphological, and Molecular Characterization of Longidorus caespiticola and Longidorus poessneckensis (Nematoda: Longidoridae) from Ukraine

SOLOMIA SUSULOVSKA/ PABLO CASTILLO/ ANTONIO ARCHIDONA-YUSTE

Seven needle nematode species of the genus Longidorus have been reported in Ukraine. Nematological surveys for needle nematodes were carried out in Ukraine between 2016 and 2017 and two nematode species of Longidorus (L. caespiticola and L. poessneckensis) were collected from natural and anthropogenically altered habitats on the territory of Opillia and Zakarpattia in Ukraine. Nematodes were extracted from 500 cm3 of soil by modified sieving and decanting method. Extracted specimens were process(..)

DOI: 10.21307/jofnem-2017-088

First Report of Cactodera estonica in Canada

QING YU/ FENGCHENG SUN

A population of cyst nematode with terminal protuberance was found in soil samples associated with and on the roots of Polygonum aviculare L. at N45°23.480′, W75°40.463′ in South Ottawa, Ontario. Both J2 and cysts were found. It was subsequently confirmed with morphological and molecular methods as Cactodera estonica Krall and Krall, 1978 (Krall and Krall, 1978). The cysts are dark brown, elongated with length/breadth ratio more than 2, and vulval fenestra circumfenestrate 33 ± 4.1 (20–48) μm in(..)

DOI: 10.21307/jofnem-2017-089

Xiphinema japonicum n. sp. (Nematoda: Longidorinae) from the Rhizosphere of Japanese Podocarpus macrophyllus (Thunb.), a Cryptic Species Related to Xiphinema bakeri Williams, 1961

LIRONG ZHAO/ WEIMIN YE/ MUNAWAR MARIA/ MAJID PEDRAM/ JIANFENG GU

Xiphinema japonicum n. sp., isolated in Ningbo, China, from the rhizosphere of Podocarpus macrophyllus (Thunb.) imported from Japan is described. The new species belongs to Xiphinema non-americanum group 7 and is characterized by medium body length (3.0–3.7 mm), total stylet length 190–201 μm, vulva located anteriorly (V = 30.5%–35.3%), two equally developed female genital branches without uterine differentiation (no Z or pseudo-Z organ and/or spines in the uteri), short tail, convex-conoid with(..)

DOI: 10.21307/jofnem-2017-090

Occurrence of Sheraphelenchus sucus (Nematoda: Aphelenchoidinae) and Panagrellus sp. (Rhabditida: Panagrolaimidae) Associated with Decaying Pomegranate Fruit in Italy

ELENA FANELLI/ ALBERTO TROCCOLI/ NICOLA VOVLAS/ GIANLUCA SCARCIA/ ANNAMARIA MINCUZZI/ SIMONA M. SANZANI/ ANTONIO IPPOLITO/ FRANCESCA DE LUCA

Two different nematode species were recovered from pomegranate decaying fruit in two localities in Southern Italy: the mycetophagus nematode Sheraphelenchus sucus and a bacterial feeder nematode belonging to the Panagrolaimidae (Rhabditida) family. Morphometrics of the Italian population of S. sucus closely resemble that of the type population, whereas some differences were found when compared with another population from Iran. Molecular characterization of the Italian S. sucus using the 18S rRN(..)

DOI: 10.21307/jofnem-2017-091

Pathogenic Potential of Fresh, Frozen, and Thermally Treated Anisakis spp. Type II (L3) (Nematoda: Anisakidae) after Oral Inoculation into Wistar Rats: A Histopathological Study

KAREEM MORSY/ ABEER MAHMOUD BADR/ FATHY ABDEL-GHAFFAR/ SOMAYA EL DEEB/ SAMAR EBEAD

The third-stage (L3) larvae of Anisakis are the etiological agents of human anisakiasis caused by consumption of raw or undercooked seafood infected with anisakid nematodes. Infection with these worms is associated with abdominal pain, nausea, and diarrhea and can lead to massive infiltration of eosinophils and the formation of granulomas in the gastrointestinal tract if the larvae are not removed. Food allergy affects populations worldwide, and despite several reports on the presence of the pot(..)

DOI: 10.21307/jofnem-2017-092

Control of Globodera spp. Using Brassica juncea Seed Meal and Seed Meal Extract

LOUISE-MARIE DANDURAND/ MATT J. MORRA/ INGA A. ZASADA/ WENDY S. PHILLIPS/ INNA POPOVA/ COLE HARDER

The eradication program for the potato cyst nematode (PCN), Globodera pallida, in the Northwest of the United States revolves around the use of soil fumigation. Alternative, integrated strategies are needed to continue to battle this invasive nematode. Laboratory, greenhouse, and field experiments were conducted with G. pallida and another cyst nematode found in the United States, Globodera ellingtonae, to evaluate the efficacy of a new formulated Brassica juncea seed meal extract, as well as a (..)

DOI: 10.21307/jofnem-2017-093

Annual and Perennial Alleyway Cover Crops Vary in Their Effects on Pratylenchus penetrans in Pacific Northwest Red Raspberry (Rubus idaeus)

RACHEL E. RUDOLPH/ INGA A. ZASADA/ LISA W. DEVETTER

Cover crops can provide many benefits to agroecosystems, such as lessening soil erosion and increasing water infiltration. However, cover crop use is not common in established red raspberry (Rubus idaeus) fields in the Pacific Northwest. Raspberry growers are concerned about resource competition between the cover crop and raspberry crop, as well as increasing population densities of the plant-parasitic nematode Pratylenchus penetrans, which has a wide host range and has been shown to reduce rasp(..)

DOI: 10.21307/jofnem-2017-094

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