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Article | 21-July-2017

Reproduction and Damage Potential of Five Geographical Ditylenchus africanus Populations on Peanut

Ditylenchus africanus affects peanut quality, which leads to downgrading of consignments and economic losses for producers.This nematode is difficult to control and host-plant resistance may be the most effective way to control it. Recently, the peanut breeding line PC254K1 has been identified as resistant to a D. africanus population from Vaalharts and will be included into the peanut breeding program. The objectives of our study were to compare the reproduction potential of D

SONIA STEENKAMP, DIRK DE WAELE, ALEXANDER MCDONALD

Journal of Nematology, Volume 48 , ISSUE 2, 72–78

research-article | 16-April-2020

Nematicide efficacy at managing Meloidogyne arenaria and non-target effects on free-living nematodes in peanut production

Peanut (Arachis hypogaea) is an important crop in the United States with 757,000 ha planted in 2018, worth $1.15 billion (NASS-USDA, 2019a, b). Much of the production is concentrated in the Southeast where Meloidogyne arenaria (peanut root-knot nematode (PRKN)) can significantly reduce yields with suppression approaching 50% observed in field research (Rodriguez-Kabana and Robertson, 1987; Rodriguez-Kabana et al., 1994a, 1994b). Damage thresholds for this nematode are 1 egg/100 cm3, so any

Zane J. Grabau, Mark D. Mauldin, Alemayehu Habteweld, Ethan T. Carter

Journal of Nematology, Volume 52 , 1–10

research-article | 30-November-2018

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

PPN toward or away from test compounds (e.g., root extracts and exudates). The specific objectives were to (i) develop a new and unique bioassay for PPN chemotaxis, and (ii) validate this bioassay using three PPN species (i.e., R. reniformis, M. incognita, and H. glycines) exposed to root extracts and exudates from host (cotton and soybean) and/or non-host (peanut) plants, which underpin the crucial properties of root exudates (esp., hydrophiles) in the host-specific recognition and orientation of

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

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

During February and May 2021, several potted American pitcher plants (Sarracenia sp.) with roots galls induced by root-knot nematodes were collected from a botanical garden in Los Angeles County, California. Based on the analysis of several molecular markers, the root-knot nematode extracted from the galled roots was identified as the Texas peanut root-knot nematode M. haplanaria (Eisenback et al., 2003) in the Nematology Laboratory, Plant Pest Diagnostics Center, California Department of Food

Sergei A. Subbotin

Journal of Nematology, Volume 53 , 1–7

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 | 16-April-2020

Nematicide influence on cotton yield and plant-parasitic nematodes in conventional and sod-based crop rotation

, stunting, and chlorosis (Lawrence and McLean, 2001; Blasingame et al., 2002; Robinson, 2007). Rotating to a non-host crop may provide short-term suppression of plant-parasitic nematodes in cotton production (Starr et al., 2002). For instance, crop rotation to a non-host like peanut (Arachis hypogaea) or corn (Zea mays) is an effective means to manage RN (Moore and Lawrence, 2012). Rotation to a non-host for one or more years can reduce RN populations below economic thresholds into the subsequent cotton

Lesley A. Schumacher, Zane J. Grabau, David L. Wright, Ian M. Small, Hui-Ling Liao

Journal of Nematology, Volume 52 , 1–14

Article | 01-April-2020

H-deficient Bombay and paraBombay red blood cells are most strongly agglutinated by the galactophilic lectins of Aplysia and Pseudomonas aeruginosa that detect I and P1 antigens

The galactophilic lectins Aplysia gonad lectin (AGL) and Pseudomonas aeruginosa lectin (PA-IL),which detect human I and P1 RBC antigens, were examined for hemagglutination of H+ (group O and B) and H-deficient (Bombay and para-Bombay phenotype) RBCs. The results were compared with those obtained using two other galactophilic lectins, Maclura pomifera lectin (MPL) and Arachis hypogaea (peanut) agglutinin (PNA), which share T-antigen affinity, and two fucose-binding H-specific lectins, Ulex

Nechama Gilboa-Garber, Dvora Sudakevitz, Cyril Levene, Naomi Rahimi-Levene, Vered Yahalom

Immunohematology, Volume 22 , ISSUE 1, 15–22

Research Article | 17-October-2018

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

, or cucumber were non-hosts. In the United States, H. cyperi was reported from Florida, North Carolina, and Arkansas (Subbotin et al., 2010) infecting Cyperus spp. Yellow nutsedge is considered a serious weed problem in many cropping systems including peanut, cotton, tobacco, and vegetable crops in the Southern United States. To our knowledge, this is the first report of H. cyperi infecting yellow nutsedge in Georgia. Figure 1 Photomicrographs of Heterodera cyperi from yellow nutsedge in Georgia

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

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

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