Journal of nematology最新文献_第6页

Crop Rotation with Resistant Potato and Solanum sisymbriifolium to Control Globodera pallida. 抗马铃薯与抗西葫芦轮作防治苍白球虱。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-12-07 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0054

Paige Hickman, Louise-Marie Dandurand

{"title":"Crop Rotation with Resistant Potato and Solanum sisymbriifolium to Control Globodera pallida.","authors":"Paige Hickman, Louise-Marie Dandurand","doi":"10.2478/jofnem-2025-0054","DOIUrl":"10.2478/jofnem-2025-0054","url":null,"abstract":"Globodera pallida, the pale cyst nematode is a regulated pest in Idaho. This study investigated whether rotation of the trap crop Solanum sisymbriifolium and a resistant potato variety was effective for controlling G. pallida in Idaho. The highly resistant potato variety, 'Innovator', was used. Three-year crop rotations incorporating 'Innovator' and S. sisymbriifolium before a susceptible potato were established in an Idaho field. At the end of each growing season, the impact of each crop on the initial population used to infest soil and progeny cysts was evaluated. 'Innovator' and S. sisymbriifolium similarly reduced encysted eggs of the initial population by 70% after the first year. However, S. sisymbriifolium further reduced egg viability of the initial population to 58%, compared with 'Innovator' plots with 89% egg viability. By the end of year 3, reproduction factors (RF; final egg population/initial egg population) showed that all rotations resulted in 99%-100% overall reduction in the initial G. pallida population density. After 2 years of S. sisymbriifolium, cysts were undetectable following the susceptible potato 'Russet Burbank'. These results demonstrate the potential of S. sisymbriifolium and resistant potato in rotation to reduce G. pallida population densities.","PeriodicalId":16475,"journal":{"name":"Journal of nematology","volume":"57 1","pages":"20250054"},"PeriodicalIF":1.4,"publicationDate":"2025-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12682248/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145708438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Throughput Resistance Phenotyping of Banana (Musa spp.) against Radopholus similis. 香蕉（Musa spp.）对相似瓢虫的高通量抗性表型分析。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-12-07 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0055

Joseph Kisitu, Kanan K Saikai, Danny Coyne, Reagan Kanaabi, James Kisaakye, Rony Swennen, Gloria V Nakato

{"title":"High-Throughput Resistance Phenotyping of Banana (Musa spp.) against Radopholus similis.","authors":"Joseph Kisitu, Kanan K Saikai, Danny Coyne, Reagan Kanaabi, James Kisaakye, Rony Swennen, Gloria V Nakato","doi":"10.2478/jofnem-2025-0055","DOIUrl":"10.2478/jofnem-2025-0055","url":null,"abstract":"Radopholus similis severely damages banana roots causing significant yield losses. Field screening for resistance is labor intensive and inconsistent due to environmental variation and mixed nematode populations. The screenhouse offers a controlled environment but is limited by the time needed for root development and variation in plant growth. We developed and validated a high-throughput in vitro method for phenotyping banana resistance to R. similis using sand-Murashige and Skoog (MS) media. Tissue culture plantlets grown in sterilized sand-MS were inoculated with 50 female R. similis after root development and nematodes extracted eight weeks after inoculation to calculate the reproduction factor (RF). Although RF values were higher for in vitro than in the screenhouse, accession responses showed similar trends under both conditions. The in vitro method was rapid, cost-effective with higher throughput, accelerating phenotyping and enabling rapid assessment of banana accessions for breeding programs. Some accessions responded differently to the two methods indicating that additional methods, such as root necrosis scores are important to confirm resistance. This study is the first in vitro-based demonstration of phenotyping for nematode resistance using modified sand-MS media with improved root development and pathogen interactions.","PeriodicalId":16475,"journal":{"name":"Journal of nematology","volume":"57 1","pages":"20250055"},"PeriodicalIF":1.4,"publicationDate":"2025-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12757907/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145900582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First Report of Anguina pacificae Parasitizing Turfgrass in Washington. 华盛顿地区草坪草中安家蚕的首次报道。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-27 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0053

Emily Braithwaite, Chas J Schmid, Alec R Kowalewski, Katherine Fleming, Amy B Peetz, Inga A Zasada, Hannah M Rivedal

引用次数: 0

Race Detection and Density of Rotylenchulus reniformis & Meloidogyne incognita on Banana in Türkiye. 我国香蕉上小轮虫和小轮虫的小种检测和密度。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-17 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0044

Sümeyya Vuslat Dişkaya, İbrahim Halil Elekcioğlu

引用次数: 0

Rotylenchulus reniformis Management and Vertical Distribution in Summer-Winter Crop Rotations Including Carinata. 夏-冬轮作包括海马莲在内的小轮菊管理与垂直分布。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-17 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0052

Rebeca Sandoval Ruiz, Ramdeo Seepaul, Ian M Small, Zane J Grabau

{"title":"Rotylenchulus reniformis Management and Vertical Distribution in Summer-Winter Crop Rotations Including Carinata.","authors":"Rebeca Sandoval Ruiz, Ramdeo Seepaul, Ian M Small, Zane J Grabau","doi":"10.2478/jofnem-2025-0052","DOIUrl":"10.2478/jofnem-2025-0052","url":null,"abstract":"Brassica carinata (carinata) is an emerging winter biofuel crop in the southeastern United States. Rotylenchulus reniformis (reniform nematode) is an important yield-robbing parasite on cotton in the region. A better understanding of rotation systems involving carinata would guide R. reniformis management and crop selection decisions. This study aimed to determine the effect of winter crop rotations with or without carinata, in combination with summer crops, on R. reniformis at two soil depths in a field study in North Florida. Two-year winter rotations included fallow-carinata, fallow-fallow, and oat-carinata. Winter rotations were crossed with corn, cotton, soybean, and peanut each year. Soil samples were taken from 0-30 cm and 30-120 cm depth after both summer and winter crop harvest for 4 yr. Rotylenchulus reniformis soil abundances were greater at 0-30 cm than at 30-120 cm deep, but crop effects were generally similar at both depths. Cotton supported greater R. reniformis soil abundances than corn, peanut, or soybean. Winter rotations did not consistently affect R. reniformis, regardless of prior summer crop, although carinata tended to decrease R. reniformis soil abundances. In summary, carinata production expands options for winter crop rotations to manage R. reniformis.","PeriodicalId":16475,"journal":{"name":"Journal of nematology","volume":"57 1","pages":"20250052"},"PeriodicalIF":1.4,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12620610/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145549787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heterorhabditis caligo n. sp. (Rhabditida: Heterorhabditidae): A New Entomopathogenic Nematode from Pichilemu Sand Dunes, Chile. （横纹肌目：异虫虫科）：智利Pichilemu沙丘一种新的昆虫病原线虫。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-10 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0045

Ernesto San-Blas, Patricia Morales-Montero, Brynelly Bastidas, Vladimir Půža, Ricardo A R Machado

{"title":"Heterorhabditis caligo n. sp. (Rhabditida: Heterorhabditidae): A New Entomopathogenic Nematode from Pichilemu Sand Dunes, Chile.","authors":"Ernesto San-Blas, Patricia Morales-Montero, Brynelly Bastidas, Vladimir Půža, Ricardo A R Machado","doi":"10.2478/jofnem-2025-0045","DOIUrl":"10.2478/jofnem-2025-0045","url":null,"abstract":"During a survey of the nematode biodiversity in the Petrel wetland (central Chile), a population of Heterorhabditis sp. was found in the coastal dune samples. Morphological, morphometric, and molecular studies indicated that this nematode belonged to the megidis group, and represented a novel species, which we named Heterorhabditis caligo n. sp. This nematode species resembles H. marelatus but it is different in the morphometrics of its infective juvenile in the following ways: pharynx length (135-150 μm vs. 120-138 μm), and the position of the excretory pore from the anterior end (105-128 μm vs. 81-113 μm). In males, the fourth and eighth pairs of the bursal papillae are shorter and do not reach the edge of the bursa in H. caligo n. sp., whereas all the papillae in H. marelatus reach the edge of the bursa. The excretory pore of amphimictic females of H. caligo n. sp. is located more posteriorly than in those of H. marelatus 193 (169-224) μm vs. 157 (139-178) μm, respectively. Phylogenetic analyses of the genus based on whole nuclear and mitochondrial genome sequences and on five gene markers showed a clear separation of Heterorhabditis caligo n. sp. from the other species, placing it within the megidis group.","PeriodicalId":16475,"journal":{"name":"Journal of nematology","volume":"57 1","pages":"20250045"},"PeriodicalIF":1.4,"publicationDate":"2025-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12614883/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145541088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diplolaimelloides woaabi sp. n. (Nematoda: Monhysteridae): A Novel Species of Free-Living Nematode from the Great Salt Lake, Utah. （线虫纲：单线虫科）：犹他州大盐湖自由生活线虫的一新种。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-07 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0048

Julie Jung, Thomas R Murray, Morgan C Marcue, Thomas Powers, Solinus Farrer, Abigail Borgmeier, Byron J Adams, Jonathan A Wang, Gustavo Fonseca, Michael S Werner

{"title":"Diplolaimelloides woaabi sp. n. (Nematoda: Monhysteridae): A Novel Species of Free-Living Nematode from the Great Salt Lake, Utah.","authors":"Julie Jung, Thomas R Murray, Morgan C Marcue, Thomas Powers, Solinus Farrer, Abigail Borgmeier, Byron J Adams, Jonathan A Wang, Gustavo Fonseca, Michael S Werner","doi":"10.2478/jofnem-2025-0048","DOIUrl":"10.2478/jofnem-2025-0048","url":null,"abstract":"A new species of free-living nematode inhabiting microbialites in Great Salt Lake, Utah, USA is described both molecularly by 18S-sequencing and morphologically with scanning electron microscopy and differential interference contrast (DIC) microscopy. Diplolaimelloides woaabi sp. nov. (family Monhysteridae, order Monhysterida) is characterized by a combination of the following characters: ocelli present; a relatively small body size (<1.5 mm); short anterior sensory setae; cryptospiral amphidial fovea; a funnel-shaped anterior buccal cavity and reduced secondary cavity; fused lips; long double spicules and conspicuous male bursa displaying four pairs of post-cloacal papillae arranged in a (2 + 2) pattern, a single mid-ventral pre-cloacal papilla, two pairs of papillae posterior to the bursa, and an additional offset mid-tail papillae pair; and a pair of sub-apical extensions on spicules. An updated key to all species of Diplolaimelloides Meyl, 1954 is given. This species is notable for its adaptation to hypersaline microbialites, positioning it as both an extremophile and a potential bioindicator of ecological change in Great Salt Lake.","PeriodicalId":16475,"journal":{"name":"Journal of nematology","volume":"57 1","pages":"20250048"},"PeriodicalIF":1.4,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12595261/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145482312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Society of Nematologists 1961. 线虫学家协会，1961年。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-05 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0049

引用次数: 0

Morphological Ambiguity between Chambersiella Cobb, 1920, and Geraldius Sanwal, 1971: A Taxonomic Dilemma Solved through a Note from N. A. Cobb. 1920年Chambersiella Cobb与1971年Geraldius Sanwal形态学歧义：通过N. A. Cobb注释解决的分类学困境。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-11-05 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0051

Jonathan D Eisenback, Paulo Vieira

引用次数: 0

Description and Molecular Characterization of Criconemoides iraqicus n. sp. (Rhabditida: Criconematidae) From Iraq. 伊拉克蜱螨的描述及分子特征（横纹肌目：蜱螨科）。

IF 1.4 4区生物学

Journal of nematology Pub Date : 2025-10-05 eCollection Date: 2025-02-01 DOI: 10.2478/jofnem-2025-0046

Ahmed Malik Jumaah, Sedighe Azimi

{"title":"Description and Molecular Characterization of Criconemoides iraqicus n. sp. (Rhabditida: Criconematidae) From Iraq.","authors":"Ahmed Malik Jumaah, Sedighe Azimi","doi":"10.2478/jofnem-2025-0046","DOIUrl":"10.2478/jofnem-2025-0046","url":null,"abstract":"Criconemoides iraqicus n. sp. recovered from the rhizospheric soil of pomegranate in Misan province, Iraq, is described based on morphological and molecular data. The new species is characterized by its lip region comprised of two annuli, true submedian lobes absent, pseudolips present, body annuli smooth and with few anastomoses (R = 76-79), stylet 64.6-75.3 μm long, with anchor-shaped basal knobs, excretory pore at one to three annuli posterior to the pharynx base, vulva closed, vulval lips not projecting above body contour, and tail conical with one to three terminal lobes. Based on the number of body annuli, stylet length, smooth annuli, and shape of postvulval body region, C. iraqicus n. sp. is closely similar to C. amorphus, C. ananasi, C. geraerti, C. informis, C. neoinformis, and C. tenuiannulatus. The phylogenetic relationships of the new species with representatives of the family Criconematidae were reconstructed and discussed using partial sequences of the small subunit, D2-D3 expansion segments of the large subunit, and internal transcribed spacer regions of ribosomal DNA (SSU, LSU D2-D3, and ITS rDNA) based on Bayesian inference (BI). In phylogenetic trees, sequences of the new species formed clades with corresponding sequences of C. geraerti, C. informis, Discocriconemella parasinensis, and D. sinensis with different levels of relatedness.","PeriodicalId":16475,"journal":{"name":"Journal of nematology","volume":"57 1","pages":"20250046"},"PeriodicalIF":1.4,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12497450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145238854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0