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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 3 (September 2017) - List of articles

IN MEMORIAM Virginia Rogers Ferris

Andrea M. Skantar

DOI: 10.21307/jofnem-2017-067

Morphological and Molecular Identification of Longidorus euonymus and Helicotylenchus multicinctus from the Rhizosphere of Grapevine and Banana in Greece

EMMANUEL A. TZORTZAKAKIS/ CAROLINA CANTALAPIEDRA-NAVARRETE/ PABLO CASTILLO/ JUAN E. PALOMARES-RIUS/ ANTONIO ARCHIDONA-YUSTE

Plant-parasitic nematodes such as Longidorus euonymus and Helicotylenchus multicintctus are species widely distributed in central Europe as well as in Mediterranean area. In Greece, both species have been previously reported but no morphometrics or molecular data were available for these species. Nematode surveys in the rhizosphere of grapevines in Athens carried out in 2016 and 2017, yielded a Longidorus species identified as Longidorus euonymus. Similarly, a population of Helicotylenchus multi(..)

DOI: 10.21307/jofnem-2017-068

An 18S rDNA Perspective on the Classification of Criconematoidea

THOMAS POWERS/ TIMOTHY HARRIS/ REBECCA HIGGINS/ PETER MULLIN/ KIRSTEN POWERS

In the nematode family Criconematidae, a taxonomy primarily based on cuticle characters has created classifications that are notoriously volatile. Molecular characters may lead to their stabilization. A phylogenetic tree of Criconematoidea was constructed using 166 new near full-length 18S rDNA sequences and 58 sequences from GenBank. Bayesian and maximum likelihood (ML) analyses produced trees with similar topologies. Major features include a strongly supported clade that includes Criconematida(..)

DOI: 10.21307/jofnem-2017-069

Taxonomy and Systematics of the Genus Makatinus Heyns, 1965 (Nematoda: Dorylaimida: Aporcelaimidae)

REYES PENA-SANTIAGO/ INGRID VARELA

The taxonomy and the systematics of the genus Makatinus are discussed by means of the characterization of its morphological pattern and the first molecular (D2–D3 expansion segments of 28S rDNA) analysis of a representative of this taxon, Makatinus crassiformis from Costa Rica. The presence of two or more pairs of male ad-cloacal genital papillae is the most characteristic autapomorphy of the genus, but the status of its species on this concern differ among them. Both morphological and molecular(..)

DOI: 10.21307/jofnem-2017-070

Morphological, Morphometric, and Molecular Characterization of Intraspecific Variations within Indian Populations of Meloidogyne graminicola

RAJAN SALALIA/ R. K. WALIA/ VISHAL SINGH SOMVANSHI/ PUNEET KUMAR/ ANIL KUMAR

Fourteen populations of Meloidogyne graminicola were collected from different agroecological regions of India. Morphological and morphometrical comparisons were made for various nematode life stages. Three populations (Hisar, New Delhi, and Samastipur) were different from typical M. graminicola on the basis of the length of eggs; J2 length, a-value, hyaline tail portion; male length, distance up to excretory pore, spicule and gubernaculum lengths; female length and width, stylet length, distance(..)

DOI: 10.21307/jofnem-2017-071

Description of a New Anguinid Nematode, Nothotylenchus phoenixae n. sp. (Nematoda: Anguinidae) Associated with Palm Date Trees and Its Phylogenetic Relations within the Family Anguinidae

MEHRAB ESMAEILI/ RAMIN HEYDARI/ WEIMIN YE

Abstract: Nothotylenchus phoenixae n. sp. is described and illustrated from soil samples of palm trees in Kermanshah Province, western Iran. The new species is characterized by a body length of 784 (663 to 925) mmin females and 677 to 715 mmin males; a delicate stylet 6 (5 to 7) mmlong and six lines in the lateral field; median bulb of pharynx fusiform, nonmuscular, and nonvalvate; isthmus elongate, slender ending to a pyriform basal pharyngeal bulb not overlapping intestine; postvulval uterine (..)

DOI: 10.21307/jofnem-2017-072

Morphological and Molecular Characteristics of Pratylenchus haiduongensis sp. n., a New Species of Root–Lesion Nematodes Associated with Carrot in Vietnam

THI DUYEN NGUYEN/ THI MAI LINH LE/ HUU TIEN NGUYEN/ THI ANH DUONG NGUYEN/ GRACIA LIEBANAS/ QUANG PHAP TRINH

Abstract: Pratylenchus haiduongensis sp. n. is described as associated with carrot (Daucus carota subsp. sativus (Hoffm.) Sch€ubl. & G. Martens) in Hai Duong Province, Vietnam. P. haiduongensis sp. n. is characterized by the lip region with three annuli and slightly separated from the body. Stylet knobs are rounded (never indented anteriorly). The lateral field includes four incisures, bearing areolation at the pharynx region and tail region and occasionally appears in the vulval region. Sometim(..)

DOI: 10.21307/jofnem-2017-073

A New Species of the Rare Genus Anguillonema Fuchs, 1938 (Nematoda: Hexatylina, Sphaerularioidea) with Its Molecular Phylogenetic Study

MAHYAR MOBASSERI/ MAJID PEDRAM/ EBRAHIM POURJAM

Abstract: Anguillonema amolensis n. sp. is described and illustrated based on its morphological, morphometric, and molecular characters. The new species is characterized by its 575 to 820 mm long and wide body (body width at vulva = 30 to 59 mm), irregularly ventrally curved after fixation, five to six lines in lateral fields, 6.0 to 7.5 mm long stylet with small rounded knobs, pharynx lacking median bulb, pharyngo-intestinal junction anterior to nerve ring and excretory pore, females with monod(..)

DOI: 10.21307/jofnem-2017-074

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

FEIXUE CHENG/ JIAN WANG/ ZHIQIANG SONG/ JU’E CHENG/ DEYONG ZHANG/ YONG LIU

Plant-parasitic nematodes are important agricultural pests and often cause serious crop losses. Novel, environmental friendly nematicides are urgently needed because of the harmful effects of some existing nematicides on human health. 5-Aminolevulinic acid (ALA) was reported as a potential biodegradable herbicide, insecticide, or plant-growth promoting agent. Lack of information on ALA against plant-parasitic nematodes prompted this investigation to determine the effects of ALA on Meloidogyne in(..)

DOI: 10.21307/jofnem-2017-075

Influence of Root Exudates and Soil on Attachment of Pasteuria penetrans to Meloidogyne arenaria

CHANG LIU/ PATRICIA TIMPER/ PINGSHENG JI/ TESFAMARIAM MEKETE/ SOUMI JOSEPH

Abstract: The bacterium Pasteuria penetrans is a parasite of root-knot nematodes (Meloidogyne spp.). Endospores of P. penetrans attach to the cuticle of second-stage juveniles (J2) and subsequently sterilize infected females. When encumbered by large numbers of spores, juveniles are less mobile and their ability to infect roots is reduced. This study looked at different factors that influence spore attachment of P. penetrans to the root-knot nematode Meloidogyne arenaria. Pretreatment of J2 with(..)

DOI: 10.21307/jofnem-2017-076

Vertical Distribution of Pasteuria penetrans Parasitizing Meloidogyne incognita on Pittosporum tobira in Florida

RICHARD BAIDOO/ TESFAMARIAM MEKETE MENGISTU/ JANETE A. BRITO/ ROBERT MCSORLEY/ ROBERT H. STAMPS/ WILLIAM T. CROW

Pasteuria penetrans is considered as the primary agent responsible for soil suppressiveness to root-knot nematodes widely distributed in many agricultural fields. A preliminary survey on a Pittosporum tobira field where the grower had experienced a continuous decline in productivity caused by Meloidogyne incognita showed that the nematode was infected with Pasteuria penetrans. For effective control of the nematode, the bacterium and the host must coexist in the same root zone. The vertical distr(..)

DOI: 10.21307/jofnem-2017-077

Superparasitism and Population Regulation of the Mosquito-Parasitic Mermithid Nematodes Romanomermis iyengari and Strelkovimermis spiculatus

MANAR SANAD/ JENNIFER S. SUN/ MUHAMMAD S. M. SHAMSELDEAN/ YI WANG/ RANDY GAUGLER

Superparasitism is a common phenomenon in mosquito-parasitic mermithid nematodes. Multiple nematodes are needed in a single host to produce males. Host selection behavior and intraspecific competition among Romanomermis iyengari and Strelkovimermis spiculatus were investigated against their host, Culex pipiens pipiens in laboratory experiments. In a choice assay between previously infected and uninfected host larvae, infectious preparasites of both nematode species could distinguish not only bet(..)

DOI: 10.21307/jofnem-2017-078

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

YUN LIAN/ JIANQIU GUO/ HAICHAO LI/ YONGKANG WU/ HE WEI/ JINSHE WANG/ JINYING LI/ WEIGUO LU

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 nu(..)

DOI: 10.21307/jofnem-2017-079

The Mesostigmatid Mite Protogamasellus mica, an Effective Predator of Free-Living and Plant-Parasitic Nematodes

GRAHAM R. STIRLING/ A. MARCELLE STIRLING/ DAVID E. WALTER

Protogamasellus mica was extracted from a sugarcane field in Australia and cultured on bacterial-feeding nematodes. Studies with various nematodes in laboratory arenas showed that one mite and its progeny reduced nematode numbers by between 26 and 50 nematodes/day. A bacterivore (Mesorhabditis sp.), a fungivore (Aphelenchus avenae), and two plant parasites (root-knot nematode, Meloidogyne javanica and root-lesion nematode, Pratylenchus zeae) were all reduced at much the same rate despite the fac(..)

DOI: 10.21307/jofnem-2017-080

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