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1

Isutsa, D. K., I. A. Merwin, and B. B. Brodie. "Screening Malus Germplasm for Field Resistance to Apple Replant Disease and Root-lesion Nematodes." HortScience 31, no. 4 (1996): 618f—618. http://dx.doi.org/10.21273/hortsci.31.4.618f.

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Apple replant disease (ARD) is a serious problem in fruit production, and none of the major clonal rootstocks are resistant to ARD. We have screened Malus domestica clones and species accessions from the USDA Malus Germplasm Repository at Geneva, N.Y., including M. angustifolia-2375.03 (MA), M. coronaria-2966.01 (MC), M. fusca-3031.01 (MF), M. ioensis-3059.01 (MI), M. sieversii-3530.01 (MS), and M. kirghisorum-3578.01 (MK), for resistance to ARD and root-lesion nematodes (RLN, Pratylenchus spp.), in a composite soil collected from 11 New York orchards with known ARD. Plant dry mass and height,
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2

Vieira, Paulo, and Lev G. Nemchinov. "An Expansin-Like Candidate Effector Protein from Pratylenchus penetrans Modulates Immune Responses in Nicotiana benthamiana." Phytopathology® 110, no. 3 (2020): 684–93. http://dx.doi.org/10.1094/phyto-09-19-0336-r.

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The root lesion nematode (RLN) Pratylenchus penetrans is a migratory species that attacks a broad range of crops. After the RLN is initially attracted to host roots by root exudates and compounds, it releases secretions that are critical for successful parasitism. Among those secretions are nematode virulence factors or effectors that facilitate the entry and migration of nematodes through the roots and modulate plant immune defenses. The recognition of the effectors by host resistance proteins leads to effector-triggered immunity and incompatible plant–nematode interactions. Although many can
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3

Walters, Thomas W., John N. Pinkerton, Ekaterini Riga, et al. "Managing Plant–Parasitic Nematodes in Established Red Raspberry Fields." HortTechnology 19, no. 4 (2009): 762–68. http://dx.doi.org/10.21273/hortsci.19.4.762.

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The efficacy and phytotoxicity of postplant treatments to control root lesion nematodes [RLN (Pratylenchus penetrans)] and dagger nematodes [DN (Xiphinema bakeri)] in red raspberry (Rubus idaeus) were evaluated in four field studies, each conducted over 1 to 3 years. Spring spray applications of oxamyl or fosthiazate reduced RLN and DN population densities for up to 2 years, but fall oxamyl sprays and spring drip-applied oxamyl applications were not effective. Oxamyl application rate determined the duration of nematode suppression. Two spring applications of oxamyl at 2 lb/acre provided more t
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4

Walters, Thomas W., John N. Pinkerton, Ekaterini Riga, et al. "Managing Plant–Parasitic Nematodes in Established Red Raspberry Fields." HortTechnology 19, no. 4 (2009): 762–68. http://dx.doi.org/10.21273/horttech.19.4.762.

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The efficacy and phytotoxicity of postplant treatments to control root lesion nematodes [RLN (Pratylenchus penetrans)] and dagger nematodes [DN (Xiphinema bakeri)] in red raspberry (Rubus idaeus) were evaluated in four field studies, each conducted over 1 to 3 years. Spring spray applications of oxamyl or fosthiazate reduced RLN and DN population densities for up to 2 years, but fall oxamyl sprays and spring drip-applied oxamyl applications were not effective. Oxamyl application rate determined the duration of nematode suppression. Two spring applications of oxamyl at 2 lb/acre provided more t
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5

Kumar, Ashish, Vedant Gautam, R. K. Tiwari, et al. "Present status and future directions for management of root lesion nematode (Pratylenchus thornei) in chickpea." Environment Conservation Journal 23, no. 1&2 (2022): 400–409. http://dx.doi.org/10.36953/ecj.0211204.2337.

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Chickpea is a popular legume crop in Asia and Africa's semi-arid regions. Crop production gains, on the other hand, have been modest, owing to biotic and abiotic stressors. Among the different biotic stresses, nematodes portray serious threat to chickpea production and colossal losses have been reported due to stress-free infection by other pathogens on infection with root lesion nematode (RLN). The worldwide distribution of two major species of RLN namely P. thornei and P. neglectus made them a focus research area especially on management aspect. In dryland farming areas of southeastern Austr
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6

Barbosa, Pedro, Jorge M. S. Faria, Tomás Cavaco, Ana Cristina Figueiredo, Manuel Mota, and Cláudia S. L. Vicente. "Nematicidal Activity of Phytochemicals against the Root-Lesion Nematode Pratylenchus penetrans." Plants 13, no. 5 (2024): 726. http://dx.doi.org/10.3390/plants13050726.

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Plant-parasitic nematodes (PPNs) are highly damaging pests responsible for heavy losses in worldwide productivity in a significant number of important plant crops. Common pest management strategies rely on the use of synthetic chemical nematicides, which have led to serious concerns regarding their impacts on human health and the environment. Plant natural products, or phytochemicals, can provide a good source of agents for sustainable control of PPNs, due to their intrinsic characteristics such as higher biodegradability, generally low toxicity for mammals, and lower bioaccumulation in the en
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7

Isutsa, Dorcas, Ian Merwin, and Bill Brodie. "Evaluating Transgenic Apple for Resistance or Tolerance to Apple Replant Disease." HortScience 33, no. 3 (1998): 531d—531. http://dx.doi.org/10.21273/hortsci.33.3.531d.

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Apple replant disease (ARD) causes serious problems in most fruit-growing regions worldwide. It is associated with nematodes, fungi, bacteria, and other deleterious factors. Its symptoms range from severe stunting to death of replants in old orchards. We evaluated effects of antibacterial (cecropin-, attacin- and hen egg white lysozyme-encoding) and antifungal (chitinase-encoding) transgenics, obtained from the apple-rootstock breeding program at Geneva, N.Y., on ARD. Transgenics were tested in a composite soil collected from New York orchards with known replant problems. The ARD-infested fiel
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8

Reeves, Karyn L., Clayton R. Forknall, Alison M. Kelly, et al. "A Novel Approach to the Design and Analysis of Field Experiments to Study Variation in the Tolerance and Resistance of Cultivars to Root Lesion Nematodes (Pratylenchus spp.)." Phytopathology® 110, no. 10 (2020): 1623–31. http://dx.doi.org/10.1094/phyto-03-20-0077-r.

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The root lesion nematode (RLN) species Pratylenchus thornei and P. neglectus are widely distributed within cropping regions of Australia and have been shown to limit grain production. Field experiments conducted to compare the performance of cultivars in the presence of RLNs investigate management options for growers by identifying cultivars with resistance, by limiting nematode reproduction, and tolerance, by yielding well in the presence of nematodes. A novel experimental design approach for RLN experiments is proposed where the observed RLN density, measured prior to sowing, is used to cond
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9

Toktay, Halil, C. Lynne McIntyre, Julie M. Nicol, Hakan Ozkan, and Halil I. Elekcioglu. "Identification of common root-lesion nematode (Pratylenchus thornei Sher et Allen) loci in bread wheat." Genome 49, no. 10 (2006): 1319–23. http://dx.doi.org/10.1139/g06-090.

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Plant parasitic nematodes are a major biotic cause of wheat-yield loss in temperate wheat-growing regions. A major strategy to develop resistance to root-lesion nematodes (RLNs) in wheat is to assess and then exploit their natural genetic variation. This study examines RLN (Pratylenchus thornei) resistance in 1 Middle Eastern landrace (AUS4930 7.2) and 1 synthetic hexaploid wheat, CROC_1/AE.SQUARROSA (224)//OPATA (CROC), using F2 and F9 populations generated by crossing AUS4930 7.2 and CROC with the susceptible cultivar Pastor, and inoculating these crosses with P. thornei in greenhouse trials
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10

Pereira, Gonçalo, Pedro Barbosa, Cláudia S. L. Vicente, and Jorge M. S. Faria. "Eco-Friendly Management of Root Lesion Nematodes Using Volatile Allelochemicals." Agronomy 15, no. 7 (2025): 1605. https://doi.org/10.3390/agronomy15071605.

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Root lesion nematodes (RLNs) are major plant parasites causing significant global yield losses in a wide range of crops. Current management strategies largely depend on synthetic nematicides, which raise environmental and human health concerns due to their broad-spectrum toxicity and persistence in the ecosystem. Volatile allelochemicals offer a promising, environmentally safer alternative due to their biodegradability and lower toxicity to mammals. In this study, we assessed the nematicidal activity of five allelochemical volatiles—dimethyl sulphide (DMS), dimethyl disulphide (DMDS), trans-ci
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11

Keçici, Ayça İrem, Refik Bozbuğa, Atilla Öcal, et al. "Diversity and Identification of Plant-Parasitic Nematodes in Wheat-Growing Ecosystems." Microorganisms 10, no. 8 (2022): 1534. http://dx.doi.org/10.3390/microorganisms10081534.

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Several nematode species can be found in different densities in almost any soil ecosystem, and their diversity in those ecosystems depends on numerous reasons, such as climatic conditions and host presence. Cereals are one of the main hosts of plant-parasitic nematodes (PPN), chiefly root-lesion nematodes (RLN, Pratylenchus spp.) and cereal cyst nematodes (CCN, Heterodera spp.). These nematodes are known as major parasites of the cereal crops; however, agricultural areas accommodate various nematodes showing biological variation. The diversity of parasitic nematodes on cereals in the Sakarya p
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12

Reen, R. A., J. P. Thompson, T. G. Clewett, J. G. Sheedy, and K. L. Bell. "Yield response in chickpea cultivars and wheat following crop rotations affecting population densities of Pratylenchus thornei and arbuscular mycorrhizal fungi." Crop and Pasture Science 65, no. 5 (2014): 428. http://dx.doi.org/10.1071/cp13441.

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In Australia, root-lesion nematode (RLN; Pratylenchus thornei) significantly reduces chickpea and wheat yields. Yield losses from RLN have been determined through use of nematicide; however, nematicide does not control nematodes in Vertosol subsoils in Australia’s northern grains region. The alternative strategy of assessing yield response, by using crop rotation with resistant and susceptible crops to manipulate nematode populations, is poorly documented for chickpea. Our research tested the effectiveness of crop rotation and nematicide against P. thornei populations for assessing yield loss
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13

Isutsa, Dorcas K., and Ian A. Merwin. "Malus Germplasm Varies in Resistance or Tolerance to Apple Replant Disease in a Mixture of New York Orchard Soils." HortScience 35, no. 2 (2000): 262–68. http://dx.doi.org/10.21273/hortsci.35.2.262.

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We tested 40 seedling lots and 17 clonal accessions—representing 941 genotypes and 19 species or interspecific hybrids of Malus—for their resistance or tolerance to apple replant disease (ARD) in a mixture of five New York soils with known replant problems. Total plant biomass, root necrosis, root-infesting fungi, and root-lesion nematode (RLN; Pratylenchus penetrans Cobb) or dagger nematode (DN; Xiphinema americanum Cobb) populations were evaluated in apple seedlings and clones grown for ≈60 days in the composite soil. In addition to phytophagous nematodes, various Pythium, Cylindrocarpon, Fu
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14

Everts, K. L., S. Sardanelli, R. J. Kratochvil, D. K. Armentrout, and L. E. Gallagher. "Root-Knot and Root-Lesion Nematode Suppression by Cover Crops, Poultry Litter, and Poultry Litter Compost." Plant Disease 90, no. 4 (2006): 487–92. http://dx.doi.org/10.1094/pd-90-0487.

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Experiments using soil-incorporated cover crops and amendments of poultry litter (PL) and PL compost to suppress root-knot (RKN) and root-lesion nematodes were conducted in response to increasing nematode populations in Maryland's potato production areas. Identical experiments were established in microplots infested with Meloidogyne incognita or Pratylenchus penetrans. Treatments consisted of 12 3-year rotational sequences comprising potato (year 1) and cucumber (year 2) followed by a moderately RKN-resistant or susceptible soybean cultivar, castor bean, grain sorghum, or sorghum sudangrass; P
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15

Zasada, Inga A., Thomas W. Walters, and John N. Pinkerton. "Post-Plant Nematicides for the Control of Root Lesion Nematode in Red Raspberry." HortTechnology 20, no. 5 (2010): 856–62. http://dx.doi.org/10.21273/horttech.20.5.856.

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To identify a post-plant nematicide to control root lesion nematode [RLN (Pratylenchus penetrans)] in red raspberry (Rubus idaeus), a number of nematicides was tested in soil-only and plant-based experiments. In soil-only experiments, soil naturally infested with RLN was drenched with the nematicides and nematode survival was assessed 7 and 14 days after treatment. Fosthiazate and oxamyl reduced RLN recovery 92% and 52% across trials and sampling times, respectively, compared with the nontreated control. Other nematicides that resulted in moderate, and sometimes inconsistent, control of RLN we
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16

Lopes-Caitar, Valéria Stefania, Rafael Bruno Guayato Nomura, Suellen Mika Hishinuma-Silva, et al. "Time Course RNA-seq Reveals Soybean Responses against Root-Lesion Nematode and Resistance Players." Plants 11, no. 21 (2022): 2983. http://dx.doi.org/10.3390/plants11212983.

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Pratylenchus brachyurus causes serious damage to soybean production and other crops worldwide. Plant molecular responses to RLN infection remain largely unknown and no resistance genes have been identified in soybean. In this study, we analyzed molecular responses to RLN infection in moderately resistant BRSGO (Chapadões—BRS) and susceptible TMG115 RR (TMG) Glycine max genotypes. Differential expression analysis revealed two stages of response to RLN infection and a set of differentially expressed genes (DEGs) in the first stage suggested a pattern-triggered immunity (PTI) in both genotypes. T
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17

Rudolph, Rachel E., Thomas W. Walters, Lisa W. DeVetter, and Inga A. Zasada. "Contribution of a Winter Wheat Cover Crop to the Maintenance of Root Lesion Nematode Populations in the Red Raspberry Production System." HortTechnology 28, no. 2 (2018): 182–88. http://dx.doi.org/10.21273/horttech03971-18.

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One of the primary production challenges red raspberry (Rubus idaeus) growers in the Pacific northwestern United States confront is root lesion nematode [RLN (Pratylenchus penetrans)]. In this perennial production system, red raspberry serves as a sustained host for RLN. When a red raspberry planting is slated for removal in the fall, a new red raspberry planting quickly follows in the same field the following spring. The primary crop that occurs in rotation with red raspberry is a winter wheat cover crop to provide soil coverage and protection during the winter. The objectives of this researc
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18

Zheng, Xia, Siyuan Zhu, Shouwei Tang, and Touming Liu. "Identification of drought, cadmium and root-lesion nematode infection stress-responsive transcription factors in ramie." Open Life Sciences 11, no. 1 (2016): 191–99. http://dx.doi.org/10.1515/biol-2016-0025.

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AbstractDrought, cadmium (Cd) stress, and root lesion nematode (RLN) infection are three of the most important stresses affecting ramie growth and development; therefore, ramie breeding programs focus on their management more than on any other abiotic or biotic stresses. The fact that only a small number of stress-responsive transcription factors (TFs) have been identified so far is a major obstacle in the elucidation of mechanisms regulating the response to these three stresses in ramie. In this study, in order to uncover more stress-responsive TFs, a total of 179 nonredundant genes with full
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19

Ogbonnaya, F. C., M. Imtiaz, H. S. Bariana, et al. "Mining synthetic hexaploids for multiple disease resistance to improve bread wheat." Australian Journal of Agricultural Research 59, no. 5 (2008): 421. http://dx.doi.org/10.1071/ar07227.

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A collection of 253 synthetic hexaploid wheats (SHWs) produced from 192 Aegilops tauschii accessions and 39 elite durum varieties were studied to identify, characterise, and evaluate potentially untapped diversity of disease resistance in wheat. The diseases for which resistance was sought included cereal cyst nematode (CCN), root lesion nematode (RLN), Stagonospora nodorum blotch (SNB), Septoria tritici blotch (STB), and the 3 rusts, leaf rust, stem rust, and stripe rust, all important diseases of bread wheat worldwide, which can severely reduce wheat yield and quality. The SHWs exhibited a w
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20

Tolba, Shimaa R. T., Laura C. Rosso, Isabella Pentimone, et al. "Root Endophytism by Pochonia chlamydosporia Affects Defense-Gene Expression in Leaves of Monocot and Dicot Hosts under Multiple Biotic Interactions." Plants 10, no. 4 (2021): 718. http://dx.doi.org/10.3390/plants10040718.

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A study was carried out on the effect of the root endophytic fungus Pochonia chlamydosporia on plant systemic signal of defense related genes during fungal or nematode parasitism. Different biotic stress factors were examined, inoculating roots of dicot and monocot hosts with the endophyte, and measuring the expression of defense genes in leaves. A first greenhouse assay was carried out on expression of PAL, PIN II, PR1 and LOX D in leaves of tomato cv Tondino inoculated with Phytophthora infestans (CBS 120920), inoculating or not the roots of infected plants with P. chlamydosporia DSM 26985.
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21

Tolba, Shimaa R. T., Laura C. Rosso, Isabella Pentimone, et al. "Root Endophytism by Pochonia chlamydosporia Affects Defense-Gene Expression in Leaves of Monocot and Dicot Hosts under Multiple Biotic Interactions." Plants 10 (April 7, 2021): 718. https://doi.org/10.3390/plants10040718.

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The study was carried out on the effect of the root endophytic fungus <em>Pochonia chlamydosporia </em>on plant systemic signal of defense related genes during fungal or nematode parasitism. Different biotic stress factors were examined, inoculating roots of dicot and monocot hosts with the endophyte, and measuring the expression of defense genes in leaves. A first greenhouse assay was carried out on expression of PAL, PIN II, PR1 and LOX D in leaves of tomato cv Tondino inoculated with <em>Phytophthora infestans </em>(CBS 120920), inoculating or not the roots of infected plants with <em>P. ch
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22

Fatemi, Ehsan, Siegbert Melzer, and Christian Jung. "DNA-based assessment of root lesion nematode infections in cereal roots." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-39559-8.

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AbstractRoot lesion nematodes (RLN) of the genus Pratylenchus are causing significant damage in cereal production worldwide. Due to climate change and without efficient and environment-friendly treatments, the damages through RLNs are predicted to increase. Microscopic assessments of RLNs in the field and the greenhouses are time-consuming and laborious. As a result, cereal breeders have mostly ignored this pest. We present a method measuring RLN in infected cereal roots using a standardized PCR approach. Publicly available Pratylenchus neglectus primer combinations were evaluated. An optimal
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23

Xia, Yanhui, Jing Li, Penghui Hao, et al. "Discovery of Root-Lesion Nematode (Pratylenchus scribneri) on Corn in Hainan Province of China." Plant Disease, November 24, 2021. http://dx.doi.org/10.1094/pdis-09-21-1960-pdn.

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Corn (Zea mays L.) is a very important cereal crop and serves as food, feed, and industrial material (Liu et al. 2016). The root-lesion nematode (RLN) is considered one of the most important plant-parasitic nematodes and can cause economic losses in agriculture worldwide (Jones et al. 2013). In January 2020, five samples were collected from a corn field in Lingshui Lizu Autonomous County, Hainan Province, China. The collected corn plants (cv. Denghai 685) were growing poorly and roots showed distinct lesions and rot. Corn fields with symptoms of stunted plants, and brown lesions on roots were
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24

Qi, Xiuxiu, Xia Xue, Guoquan Su, et al. "The physiological and biochemical role of silicon in enhancing the resistance of maize to root‐lesion nematode." Plant Pathology, June 17, 2024. http://dx.doi.org/10.1111/ppa.13955.

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AbstractSilicon (Si) plays an important role in enhancing the tolerance of plants to biotic and abiotic stress in soil ecosystems. Root‐lesion nematodes (Pratylenchus scribneri; RLNs) cause root damage and diseases that result in quality deterioration and economic loss. This study investigated the effects of Si application on maize plants and its interaction with RLN infection. We set up different treatments to evaluate the role of silicon application in maize root growth and RLN resistance. This study conducted analysis by combining measurements of the metabolism and root activity of maize un
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Li, Yu, Jin Li, Yaojun Hu, et al. "Occurrence of Root-Lesion Nematode Pratylenchus coffeae on Corn in Xinjiang Uygur Autonomous Region, China." Plant Disease, April 22, 2022. http://dx.doi.org/10.1094/pdis-09-21-1988-pdn.

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Pratylenchus coffeae Filipjev &amp; Schuurmans Stekhoven, 1941, is one of the most important root-lesion nematodes (RLN) parasitizing many agronomic and industrial crops (Wang et al. 2021). Corn (Zea mays L.) is one economically important crop in China, with 35 million hectares cultivated annually (Li et al. 2019). In July 2019, a survey of RLN was carried out in corn field planting with cultivar Heyu 187 in Chuanba village in Qitai County, Xinjiang Uygur Autonomous Region, China. Five root/soil samples were collected from poor growing plants with distinct brown lesions. Nematodes were extract
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Chen, Dahu, Ryan Barrett, Benjamin Mimee, et al. "Prevalence of Verticillium spp. and Pratylenchus spp. in Commercial Potato Fields in Atlantic Canada." American Journal of Potato Research, July 5, 2024. http://dx.doi.org/10.1007/s12230-024-09957-3.

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AbstractA survey of New Brunswick (NB) and Prince Edward Island (PEI) potato fields in crop rotation phase prior to potato production was conducted in fall (October and November) between 2017 and 2021. A total of 113 and 126 fields for NB and PEI, respectively, were surveyed with 20 to 35 fields each year tested in each province. Root lesion nematodes (RLN, Pratylenchus spp.) were detected in 99 and 98% of the fields for NB and PEI, respectively, and two root lesion nematode species, P. crenatus and P. penetrans, were identified in both provinces from 2017 to 2021. Based on 2019 and 2020 resul
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27

Mustafa, İmren, Göksel Özer, Timothy Paulitz, Alexei Morgounov, and Abdelfattah A. Dababat. "Plant-parasitic nematode associated with wheat in central, eastern, and south-eastern Kazakhstan." Plant Disease, March 23, 2021. http://dx.doi.org/10.1094/pdis-11-20-2424-sr.

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Kazakhstan is one of the biggest wheat producers, however, its wheat production is far below the average international wheat production standard due to biotic and abiotic stressors. Plant-parasitic nematodes are devastating for cereal production systems worldwide. A comprehensive survey was conducted in 2019 to identify plant-parasitic nematodes associated with wheat in different locations of central, eastern, and south-eastern Kazakhstan. The results revealed 33 root-lesion and 27 cyst nematode populations from the 77 localities sampled. These two genera occurred in separate or in mixed popul
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Orlando, Valeria, David Roberts, Simon G. Edwards, Thomas Prior, Roy Neilson, and Matthew A. Back. "Development and validation of four TaqMan real-time PCR diagnostics for the identification and quantification of Pratylenchus crenatus, Pratylenchus neglectus, Pratylenchus penetrans and Pratylenchus thornei." Nematology, February 29, 2024, 1–13. http://dx.doi.org/10.1163/15685411-bja10315.

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Summary Pratylenchus crenatus, P. neglectus, P. penetrans and P. thornei are globally the most commonly occurring species of root-lesion nematodes (RLN). Correct identification and quantification of these nematodes is important for strategic management interventions such as rotation choice and nematicide use. A real-time quantitative PCR can provide a fast and reliable alternative to morphological identification, which requires significant taxonomic experience. A TaqMan hydrolysis probe method based on the 28S rDNA D2-D3 expansion region was developed and validated for the identification and q
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Gilarte, P., J. M. Plett, E. Pendall, Y. Carrillo, and U. N. Nielsen. "Soil nematodes modify interactions between nitrogen-fixing and non-fixing tree seedlings from late, but not early, successional stages." Plant and Soil, August 30, 2024. http://dx.doi.org/10.1007/s11104-024-06906-1.

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Abstract Aims Plant community dynamics are influenced by interspecific interactions. Previous studies have shown that soil organisms play a key role in such interactions, but few studies have quantified soil fauna contributions. Methods We investigated the effects of root lesion (RLN) and bacterial feeding (BFN) nematodes on the interaction between seedlings of nitrogen-(N)-fixing tree species of Acacia and non-fixing Banksia from early and late successional stages of a temperate forest in a pot experiment. Results Nematodes had consistent, albeit minor, negative effects on both N-fixers and n
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30

Kumar, Ashish, Yogesh Dashrath Naik, Vedant Gautam, et al. "Genome‐wide association mapping reveals novel genes and genomic regions controlling root‐lesion nematode resistance in chickpea mini core collection." Plant Genome, September 13, 2024. http://dx.doi.org/10.1002/tpg2.20508.

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AbstractRoot‐lesion nematodes (RLN) pose a significant threat to chickpea (Cicer arietinum L.) by damaging the root system and causing up to 25% economic losses due to reduced yield. Worldwide commercially grown chickpea varieties lack significant genetic resistance to RLN, necessitating the identification of genetic variants contributing to natural resistance. This study identifies genomic loci responsible for resistance to the RLN, Pratylenchus thornei Sher &amp; Allen, in chickpea by utilizing high‐quality single nucleotide polymorphisms from whole‐genome sequencing data of 202 chickpea acc
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Hu, Yaojun, Ling Qin, Wenlong Niu, et al. "Pratylenchus zeae a causative agent of Corn Root Rot in Jiangsu Province of China." Plant Disease, February 23, 2023. http://dx.doi.org/10.1094/pdis-10-22-2456-pdn.

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Corn (Zea mays L.) plays an important role in China's cash crops, not only as food, but a vital raw material for animal husbandry and industry (Li et al. 2022). Pratylenchus zeae is one of the most damaging root-lesion nematodes (RLN) that can result in decreased yield and quality of crops (Liu et al. 2017). In September 2020, five root/soil samples were collected from the rhizosphere of corn (cv. Zhengdan 958), which had weak growth and root brown lesions in Chenzhou Village, Taolin Town, Donghai County, Lianyungang City, Jiangsu Province of China. Nematodes were extracted from the collected
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32

Qiao, Wanqiang, Yonggang Liu, Min Zhang, Mingming Shi, Jin Wu, and Huixia Li. "First Report of the Root-Lesion Nematode (Pratylenchus thornei Sher and Allen, 1953) Parasitizing Oats in Gansu Province, China." Plant Disease, March 14, 2023. http://dx.doi.org/10.1094/pdis-05-22-1131-pdn.

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Oat (Avena sativa L.) is a vital cereal crop and serves as food, feed, and industrial material for many commercial growers. The presence of root-lesion nematodes (RLN; Pratylenchus spp.) in oat-cultivated areas of China is alarming because RLNs display an endo-migratory life cycle and rank third among the most damaging nematode pests (Jones et al. 2013). Their penetration and feeding cause necrotic lesions on the roots, which further dispose plants to other soilborne pathogens resulting in extensive root rots (LaMondia, 2003). In China, it has been reported that P. thornei harmed sugarcane and
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33

Singh, Gurminder, Ashmit KC, Karansher Singh Sandhu, Andrew J. Friskop, Zhaohui Liu, and Guiping Yan. "Evaluation of Wheat Cultivars and Germplasm Lines for Resistance to Pratylenchus neglectus Populations Collected in North Dakota." Plant Disease, May 25, 2023. http://dx.doi.org/10.1094/pdis-03-23-0590-re.

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Root-lesion nematode (RLN; Pratylenchus neglectus) is a migratory endoparasite and a major soil-borne pathogen that affects wheat (Triticum spp.) production worldwide. Genetic resistance is one of the most economical and effective ways to manage P. neglectus in wheat. This study evaluated 37 local cultivars and germplasm lines in seven greenhouse experiments, including 26 hexaploid wheat, six durum wheat, two synthetic hexaploid wheat, one emmer wheat, and two triticale for P. neglectus resistance from 2016 to 2020. North Dakota field soils infested with two RLN populations (350 to 1,125 nemat
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34

Chen, Dahu, Judith Nyiraneza, Kamrun Nahar, et al. "Impacts of Primary Non-Inversion Shallow Tillage and Moldboard Plowing on the Potato Early Dying Disease Complex in Prince Edward Island, Canada." American Journal of Potato Research, March 25, 2025. https://doi.org/10.1007/s12230-025-09987-5.

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Abstract Conservation tillage has shown potential to improve soil health and enhance crop productivity in various cropping systems. Moldboard plowing (MP) in the fall prior to the potato phase is a conventional practice in Prince Edward Island (PEI), Canada, which leaves the soil prone to erosion and soil organic matter decline. Potato early dying disease complex (PED) is a major yield limiting factor in potato production in PEI. The objective of this four-year (2019–2022) study conducted in 14 commercial fields was to determine the effect of non-inversion shallow tillage (ST) in comparison wi
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35

Gao, Lingling, Yunlong Lv, Can Zhang, et al. "Discovery of Pratylenchus zeae Causing Root Rot of Winter Wheat in Anhui Province of China." Plant Disease, April 4, 2025. https://doi.org/10.1094/pdis-02-25-0327-pdn.

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Root-lesion nematode (RLN), Pratylenchus zeae Graham, 1951, is a serious nematode pest in a number of agronomic and industrial crops (Liu et al. 2017). Wheat (Triticum aestivum) is one of the most important food crops in Anhui province of China. In May 2023, a survey was conducted for RLNs in winter wheat fields in Woyang county of Bozhou City, Anhui province, China. The samples were collected about 20 days before wheat (cv. Gushenmai 19) harvest. The plants were growing poorly, with distinct brown lesions on the wheat roots. The RLNs were extracted with the modified Baermann funnel apparatus
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36

Kessler, Alexandra, and Alyssa Koehler. "A survey of plant parasitic nematodes of soybeans in Delaware and Maryland 2019-2021." Plant Health Progress, October 9, 2022. http://dx.doi.org/10.1094/php-07-22-0064-s.

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Soybean cyst nematode is the most yield-limiting pathogen of soybean across Delaware (DE) and eastern shore Maryland (MD). To update nematode distribution and population data, a three-year soil survey was conducted from 2019 to 2021. Soybean fields across DE and nine MD counties were sampled from August through October. Three hundred and eleven soil samples were collected, including two hundred and 22 predictive samples and 89 diagnostic samples. Across all samples, nine nematode taxa were identified. Soybean cyst nematode (Heterodera glycines, 53.38%), root-knot nematode (Meloidogyne incognit
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Mutai, Joyce, Beth Medvecky, Steven J. Vanek, et al. "Long‐term cropping system and manure effects on soil health parameters and associated soil‐borne pathogens." Soil Science Society of America Journal 89, no. 3 (2025). https://doi.org/10.1002/saj2.70076.

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AbstractSoil‐borne pathogens reduce the performance of key food crops in sub‐Saharan Africa. Diversified cropping and nutrient management can enhance soil and plant health, limiting pathogen damage. To examine how management and soil health changes influence soil‐borne pathogens, we leveraged an 18‐year field trial in western Kenya, evaluating cropping systems typical of smallholder farms. We considered three cropping systems and two organic matter management strategies: continuous maize monocrop (M–M), Tephrosia in rotation with maize (T–M), maize intercropped with soybean (M–S), application
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Kumar, Deepak, Shiveta Sharma, Rajiv Sharma, et al. "Genome-wide association study in hexaploid wheat identifies novel genomic regions associated with resistance to root lesion nematode (Pratylenchus thornei)." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-80996-0.

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AbstractRoot lesion nematode (RLN; Pratylenchus thornei) causes extensive yield losses in wheat worldwide and thus pose serious threat to global food security. Reliance on fumigants (such as methyl bromide) and nematicides for crop protection has been discouraged due to environmental concerns. Hence, alternative environment friendly control measures like finding and deployment of resistance genes against Pratylenchus thornei are of significant importance. In the present study, genome-wide association study (GWAS) was performed using single-locus and multi-locus methods. In total, 143 wheat gen
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Chen, Dahu, Bernie J. Zebarth, Claudia Goyer, Louis-Pierre Comeau, Kamrun Nahar, and Tom Dixon. "Effect of Biofumigation on Population Densities of Pratylenchus spp. and Verticillium spp. and Potato Yield in Eastern Canada." American Journal of Potato Research, April 13, 2022. http://dx.doi.org/10.1007/s12230-022-09875-2.

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AbstractBiofumigation has been proposed as an alternative to soil fumigation to manage soil-borne diseases including potato early dying disease complex (PED). This study examined the potential of using brown mustard (Mustard juncea) biofumigation to manage PED under rain-fed potato production in New Brunswick, Canada in two trials between 2017 and 2020 in comparison with chloropicrin fumigation and a conventional barley rotation. Biofumigation increased yield in one trial, but not in a second trial where the potato crop experienced severe drought, whereas chloropicrin fumigation increased yiel
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