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Original Research | 18-July-2017

Diversity of Root-knot Nematodes Associated with Tubers of Yam (Dioscorea spp.) Established Using Isozyme Analysis and Mitochondrial DNA-based Identification

identified using enzyme phenotyping (esterase and malate dehydrogenase) and mitochondrial DNA (mtDNA) NADH dehydrogenase subunit 5 (Nad5) barcoding. Examination of 48 populations revealed that yam tubers were infested by Meloidogyne incognita (69%), followed by M. javanica (13%), M. enterolobii (2%), and M. arenaria (2%). Most of the tubers sampled (86%) were infected by a single species, and multiple species of RKN were detected in 14% of the samples. Results of both identification methods revealed the

Yao A. Kolombia, Gerrit Karssen, Nicole Viaene, P. Lava Kumar, Nancy de Sutter, Lisa Joos, Danny L. Coyne, Wim Bert

Journal of Nematology, Volume 49 , ISSUE 2, 177–188

research-article | 21-January-2022

Susceptibility of Flordaguard peach rootstock to a resistant-breaking population of Meloidogyne floridensis and two populations of Meloidogyne arenaria

peach rootstock cvs. Nemaguard (Prunus persica x P. davidiana) and Nemared (P. persica x P. davidiana), developed by the U.S. Department of Agriculture, and Okinawa, introduced as seed from Japan, were reported resistant to M. incognita, M. javanica, and M. arenaria (Sharpe, 1957; Okie et al., 1985; Esmenjaud et al., 1997). Okinawa and Nemaguard were planted extensively in Florida during the 1960’s because they were considered to have a high degree of resistance to the prevalent RKN species M

Sai Qiu, Mary Ann D. Maquilan, Jose X. Chaparro, Janete A. Brito, Thomas G. Beckman, Donald W. Dickson

Journal of Nematology, Volume 53 , 1–12

research-article | 30-November-2020

Reproduction of Meloidogyne arenaria race 2 on Flue-cured tobacco possessing resistance genes Rk1 and/or Rk2

. tomentosa Ruis and Pav. (Yi et al., 1998). This gene has been widely incorporated into flue-cured tobacco cultivars grown commercially in the United States (Koenning et al., 1999). Rk1 imparts resistance to M. incognita (Kofoid and White, 1919) Chitwood (1949) host races 1 and 3 and M. arenaria (Neal, 1889) Chitwood (1949) host race 1 (Ng’ambi et al., 1999b; Schneider, 1991). Ternouth et al. (1986) suggested that the gene imparts some level of resistance or tolerance to M. javanica (Treub, 1885

Noah Adamo, Charles S. Johnson, T. David Reed, Jonathan D. Eisenback

Journal of Nematology, Volume 53 , 1–13

research-article | 17-March-2020

First report of root-knot nematode, Meloidogyne arenaria, on lavender in Turkey

. (2014) was reported on L. spica L. (Carneiro et al., 2014). Lavender species, L. spica L. was inoculated with M. arenaria (Neal, 1892; Chitwood, 1949) and was a suitable host for this root-knot nematode (Moreno et al., 1990). However, there is no report on root-knot nematodes infecting lavender in Turkey. In 2019, a survey was carried out in the lavender growing areas in Kırklareli and Edirne provinces of Turkey. The roots of lavender plants with symptoms of stunting were observed and examined

Tevfik Özalp, Gonca Könül, Önder Ayyıldız, Adnan Tülek, Zübeyir Devran

Journal of Nematology, Volume 52 , 1–3

Article | 21-July-2017

Evaluation of Steam and Soil Solarization for Meloidogyne arenaria Control in Florida Floriculture Crops

Steam and soil solarization were investigated for control of the root-knot nematode Meloidogyne arenaria in 2 yr of field trials on a commercial flower farm in Florida. The objective was to determine if preplant steam treatments in combination with solarization, or solarization alone effectively controlled nematodes compared to methyl bromide (MeBr). Trials were conducted in a field with naturally occurring populations of M. arenaria. Treatments were solarization alone, steam treatment after

NANCY KOKALIS-BURELLE, ERIN N. ROSSKOPF, DAVID M. BUTLER, STEVEN A. FENNIMORE, JOHN HOLZINGER

Journal of Nematology, Volume 48 , ISSUE 3, 183–192

research-article | 30-November-2018

Screening of Cucurbita maxima and Cucurbita moschata Genotypes for Resistance Against Meloidogyne arenaria, M. incognita, M. javanica, and M. luci

rootstocks to manage the four RKN species (M. arenaria, M. incognita, M. javanica, and M. luci). Materials and methods Meloidogyne arenaria, M. incognita, M. javanica, and M. luci used in the study were obtained from pot cultures in the Nematology Laboratory at the Ondokuz Mayıs University. The RKN isolates were originally established from single egg masses isolated from nematode-infested plants in vegetable greenhouses located in Samsun Province, Turkey and maintained on susceptible tomato (Solanum

Gökhan Aydınlı, Ertan Sait Kurtar, Sevilhan Mennan

journal of nematology, Volume 51 , 1–10

Research Article | 31-May-2018

Influence of Temperature on Susceptibility of CVS. Tifguard and Georgia-06G Peanut to Meloidogyne arenaria

Tifguard was released in 2008 as a peanut cultivar with a high level of resistance to Meloidogyne arenaria. Our objective was to determine the role of temperature on infection and development of M. arenaria in Tifguard compared to that in the nematode susceptible cultivar, Georgia-06G. Temperature affected the rate of nematode infection and development in both Tifguard and Georgia-06G (P ≤ 0.05). In Georgia-06G, egg-laying females were observed 25, 20 or 25 days after inoculation at 28°C, 31°C

Weimin Yuan, C. C. Holbrook, Y. Chu, P. Ozias-Akins, D. W. Dickson

Journal of Nematology, Volume 50 , ISSUE 1, 33–40

research-article | 30-November-2020

Reproduction of Meloidogyne arenaria race 2 on flue-cured tobacco with putative resistance derived from Nicotiana repanda

resistance to M. incognita (Kofoid and White) Chitwood (1949) host races 1 and 3 and M. arenaria (Neal) Chitwood (1949) host race 1 (Ng’ambi et al., 1999b; Schneider, 1991). Rk1 may have some inhibitory effect on the reproduction of M. javanicaon flue-cured tobacco (Ternouth et al., 1986) but contradicting research suggests that Rk1 imparts minimal or no resistance to M. javanica, M. incognita host races 2 and 4, M. arenaria race 2, and M. hapla Chitwood (1949) (Ng’ambi et al., 1999b). In 1993, another

Noah Adamo, Charles S. Johnson, T. David Reed, Jonathan D. Eisenback

Journal of Nematology, Volume 53 , 1–9

research-article | 24-April-2020

Differences in parasitism of root-knot nematodes (Meloidogyne spp.) on oilseed radish and oat

species of root-knot nematodes at the level of one nematode per 100 cm3 of soil where management is needed to achieve economically reasonable yields (Marquez and Hajihassani, 2019). The nematode species most associated with vegetable production in Georgia are M. incognita, M. arenaria, and M. javanica (Marquez et al., 2019). The life cycle of root-knot nematodes is completed in three basic stages: egg, juvenile (J), and adult stages. Eggs are deposited in a gelatinous mass that protects eggs from

Negin Hamidi, Abolfazl Hajihassani

Journal of Nematology, Volume 52 , 1–10

research-article | 30-November-2020

Host status of morning-glory (Ipomoea spp.) to Meloidogyne species

limitations, crop rotation is the nematode control method widely used by producers in different parts of the world (Bellé et al., 2020; Ramos et al., 2019). However, the effectiveness of crop rotation for the management of root-knot nematodes is drastically reduced due to the presence of weeds in crops and during the off-season (Bellé et al., 2016; Koenning et al., 1999). The root-knot nematodes M. javanica (Treub) Chitwood, M. incognita (Kofoid and White) Chitwood, M. arenaria (Neal) Chitwood and M

Tiago Edu Kaspary, Ismail Teodoro de Souza Júnior, Rodrigo Ferraz Ramos, Cristiano Bellé

Journal of Nematology, Volume 53 , 1–6

research-article | 23-April-2019

Resistant Pepper Carrying N, Me1, and Me3 have Different Effects on Penetration and Reproduction of Four Major Meloidogyne species

) Chitwood, M. arenaria (Neal) Chitwood, and M. javanica (Treub) Chitwood are particularly significant nematode pests of pepper (Fery et al., 1998; Castagnone-Sereno et al., 2001). Meloidogyne haplanaria, Eisenback, Bernard, Starr, Lee & Tomaszewski, a resistant (Mi gene)-breaking root-knot species of tomato, has also been reported to infect and reproduce on pepper (Eisenback et al., 2003; Bendezu et al., 2004; Joseph et al., 2016). Successful management of Meloidogyne spp. in pepper includes one or

Abolfazl Hajihassani, William B. Rutter, Xuelin Luo

Journal of Nematology, Volume 51 , 1–9

research-article | 09-April-2020

First report of the root-knot nematode, Meloidogyne morocciensis infecting peach in Southern Brazil

, generally continuous, sometimes broken; the phasmids were 29.3 μm apart (25.4-31.9 μm), similar to M. arenaria (Neal, 1889) Chitwood, 1949 and M. incognita (Kofoid and White, 1919; Chitwood, 1949), as observed by Rammah and Hirschmann (1990). The polymorphism analysis revealed the A3N1 phenotype, Est A3 being the phenotype observed for α-esterase with three distinct bands (Rm = 1.11; 1.21; 1.32) (Fig. 1B) and Mdh N1 phenotype corresponding for malate dehydrogenase with only one band (Rm = 1.0) (Fig. 1C

W. R. Silva, C. P. Machaca-Calsin, C. B. Gomes

Journal of Nematology, Volume 52 , 1–3

research-article | 30-November-2020

Report of the Texas peanut root-knot nematode, Meloidogyne haplanaria (Tylenchida: Meloidogynidae) from American pitcher plants (Sarracenia sp.) in California

, bermudagrass, and birch in Arkansas (Khanal et al., 2016; Ye et al., 2019). Meloidogyne haplanaria has been shown to overcome the Mi resistant gene to M. arenaria, M. javanica, and M. incognita in tomato. However, the peanut cultivar ‘NemaTAM’, which is resistant to M. arenaria and M.javanivca, is also resistant to the Texas root-knot nematode (Bendezu et al., 2004). The objective of the present study was to provide molecular characterization of M. haplanaria parasitising potted American pitcher plants in

Sergei A. Subbotin

Journal of Nematology, Volume 53 , 1–7

research-article | 15-April-2019

Nicotinamide adenine dinucleotide induced resistance against root-knot nematode Meloidogyne hapla is based on increased tomato basal defense

Root-knot nematodes (RKNs; Meloidogyne spp.) are sedentary endoparasitic nematodes that can infect a wide range of plant species worldwide, which results in approximately $70 billion in crop losses annually (Caboni et al., 2012). Meloidogyne spp. is ranked within the top 10 most economically devastating plant-parasitic nematodes, with Meloidogyne incognita, M. arenaria, M. hapla, and M. javanica as the four major crop-damaging species (Jones et al., 2013). In tomato, yield loss due to RKNs

Noor Abdelsamad, H. Regmi, J. Desaeger, P. DiGennaro

Journal of Nematology, Volume 51 , 1–10

research-article | 30-November-2018

Maternal Stress Reduces the Susceptibility of Root-Knot Nematodes to Pasteuria Penetrans

exudates from both host and non-host plants reduced attachment of P. penetrans compared to J2 that had no prior exposure to root exudates (Liu et al., 2017). This was the first evidence that cues from the environment could alter the susceptibility of root-knot nematodes to pathogens. The objective of this study was to investigate the influence of maternal stress in M. arenaria on the susceptibility of their offspring to parasitism by P. penetrans. Because host genotype can influence the outcome of

Chang Liu, Pingsheng Ji, Patricia Timper

Journal of Nematology, Volume 51 , 1–8

Article | 05-December-2017

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

with root exudates of eggplant (Solanum melongena cv. Black beauty) reduced spore attachment compared with pretreatment with phosphate-buffered saline (PBS), suggesting that the nematode surface coat was altered or the spore recognition domains on the nematode surface were blocked. Spore attachment was equally reduced following exposure to root exudates from both host and nonhost plants for M. arenaria, indicating a common signal that affects spore attachment. Although phytohormones have been shown

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

Journal of Nematology, Volume 49 , ISSUE 3, 304–310

research-article | 26-April-2019

First report of Meloidogyne javanica on Ginger and Turmeric in the United States

Abolfazl Hajihassani, Weimin Ye, Brooke B. Hampton

Journal of Nematology, Volume 51 , 1–3

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