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Journal articles on the topic 'Plant-parasitic nematodes Reproduction'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Miamoto, Angelica, Cláudia Regina Dias-Arieira, Heriksen Higashi Puerari, Thaísa Muriel Mioranza, and Carolina Bertuzzi Pereira. "Antagonistic Effects of Java against Plant Parasitic Nematodes." Journal of Agricultural Science 10, no. 2 (2018): 289. http://dx.doi.org/10.5539/jas.v10n2p289.

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One of the main phytonematode control alternatives is the use of antagonistic plants in crop rotation or succession systems. Although java legume shows antagonist potential to control Meloidogyne javanica, its reaction to other nematodes was not investigated so far. Thus, the aim of the current study is to assess the penetration and reproduction factor (RF) of M. incognita, Rotylenchulus reniformis and Pratylenchus brachyurus in java, using soybean as control. Plants individually inoculated with 1000 specimens from each nematode were assessed 5, 10, 15, 20, 25 and 30 days after inoculation (DA

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Chin, Sabrina, Carolyn Behm, and Ulrike Mathesius. "Functions of Flavonoids in Plant–Nematode Interactions." Plants 7, no. 4 (2018): 85. http://dx.doi.org/10.3390/plants7040085.

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Most land plants can become infected by plant parasitic nematodes in the field. Plant parasitic nematodes can be free-living or endoparasitic, and they usually infect plant roots. Most damaging are endoparasites, which form feeding sites inside plant roots that damage the root system and redirect nutrients towards the parasite. This process involves developmental changes to the root in parallel with the induction of defense responses. Plant flavonoids are secondary metabolites that have roles in both root development and plant defense responses against a range of microorganisms. Here, we revie

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3

Han, Ziduan, Stephanie Boas, and Nathan E. Schroeder. "Serotonin Regulates the Feeding and Reproductive Behaviors of Pratylenchus penetrans." Phytopathology® 107, no. 7 (2017): 872–77. http://dx.doi.org/10.1094/phyto-11-16-0397-r.

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The success of all plant-parasitic nematodes is dependent on the completion of several complex behaviors. The lesion nematode Pratylenchus penetrans is an economically important parasite of a diverse range of plant hosts. Unlike the cyst and root-knot nematodes, P. penetrans moves both within and outside of the host roots and can feed from both locations. Adult females of P. penetrans require insemination by actively moving males for reproduction and can lay eggs both within and outside of the host roots. We do not have a complete understanding of the molecular basis for these behaviors. One c

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Ding, Shan-Wen, Dong-Wei Wang, Yu Xiang, Chun-Ling Xu, and Hui Xie. "Identification and Characterization of a Fatty Acid- and Retinoid-Binding Protein Gene (Ar-far-1) from the Chrysanthemum Foliar Nematode, Aphelenchoides ritzemabosi." International Journal of Molecular Sciences 20, no. 22 (2019): 5566. http://dx.doi.org/10.3390/ijms20225566.

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The chrysanthemum foliar nematode (CFN), Aphelenchoides ritzemabosi, is a migratory, plant-parasitic nematode that is widely distributed and infects the aboveground parts of many plants. The fatty acid- and retinoid-binding proteins (FAR) are nematode-specific proteins that are involved in the development, reproduction, and infection of nematodes and are secreted into the tissues to disrupt the plant defense reaction. In this study, we obtained the full-length sequence of the FAR gene (Ar-far-1) from CFN, which is 727 bp and includes a 546 bp ORF that encodes 181 amino acids. Ar-FAR-1 from CFN

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Van de Cappelle, Elke, Eva Plovie, Tina Kyndt, Wim Grunewald, Bernard Cannoot, and Godelieve Gheysen. "AtCDKA;1silencing inArabidopsis thalianareduces reproduction of sedentary plant-parasitic nematodes." Plant Biotechnology Journal 6, no. 8 (2008): 749–57. http://dx.doi.org/10.1111/j.1467-7652.2008.00355.x.

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6

Togashi, Katsumi, and Shigeru Hoshino. "Trade-off between dispersal and reproduction of a seed-borne nematode, Aphelenchoides besseyi, parasitic on rice plants." Nematology 5, no. 6 (2003): 821–29. http://dx.doi.org/10.1163/156854103773040727.

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AbstractThe effect of nematode infestation on dispersal and survival of both host plant and parasitic nematode was investigated experimentally using rice plants, Oryza sativa L. and Aphelenchoides besseyi Christie, a seed-borne ectoparasite. Nematode-inoculated plants produced a greater proportion of light seeds floating on water than non-inoculated plants. Nematode mortality was greater in light seeds than in heavy seeds. In the case of light seeds, the mean degree of seed swelling increased as the number of nematodes harboured increased, whereas it was constant with increasing numbers of nem

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Feng, Hui, Dongmei Zhou, Paul Daly, Xiaoyu Wang, and Lihui Wei. "Characterization and Functional Importance of Two Glycoside Hydrolase Family 16 Genes from the Rice White Tip Nematode Aphelenchoides besseyi." Animals 11, no. 2 (2021): 374. http://dx.doi.org/10.3390/ani11020374.

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The glycoside hydrolase family 16 (GH16) is widely found in prokaryotes and eukaryotes, and hydrolyzes the β-1,3(4)-linkages in polysaccharides. Notably, the rice white tip nematode Aphelenchoides besseyi harbors a higher number of GH16s compared with other plant-parasitic nematodes. In this work, two GH16 genes, namely AbGH16-1 and AbGH16-2, were isolated and characterized from A. besseyi. The deduced amino acid sequences of AbGH16-1 and AbGH16-2 contained an N-terminal signal peptide and a fungal Lam16A glucanase domain. Phylogenetic analysis revealed that AbGH16-1 and AbGH16-2 clustered wit

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Uesugi, Kenta, Tohru Sasaki, Hideaki Iwahori, and Yasushi Tateishi. "Reproduction of four plant-parasitic nematodes on endophyte-infected Italian ryegrasses." Nematological Research (Japanese Journal of Nematology) 44, no. 2 (2014): 43–47. http://dx.doi.org/10.3725/jjn.44.43.

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9

Almeida, Alexandre Macedo, Ricardo Moreira Souza, Vicente Martins Gomes, and Guilherme Bessa Miranda. "Greenhouse and field assessment of different organic compounds against guava-parasitic Meloidogyne enterolobii." Bragantia 71, no. 1 (2012): 67–74. http://dx.doi.org/10.1590/s0006-87052012000100011.

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Guava decline is a complex disease involving Meloidogyne enterolobii and Fusarium solani and it has caused major direct losses to Brazilian growers. Although several strategies have been sought to control the nematode, the use of organic soil amendments is currently the best approach to manage this disease. To assess the best amount of meat and bone meal (MBM) to be incorporated into the soil, guava seedlings inoculated with M. enterolobii were treated with 1-5% v/v of the MBM. Ninety days later variables related to nematode reproduction and plant development were evaluated, which indicated a

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Ferreira, Paula Santos, José Luiz Rodrigues Torres, Maria Amelia dos Santos, Ricardo de Oliveira Parolini, and Ernane Miranda Lemes. "Host suitability of cover crops for Meloidogyne javanica and M. incognita." Nematology 22, no. 6 (2020): 659–66. http://dx.doi.org/10.1163/15685411-00003329.

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Summary Management of plant-parasitic nematodes in no-tillage systems relies on knowledge of the species, their abundance and their host range in a certain cropping area. Crop rotation is one of the most efficient techniques in the control of plant-parasitic nematodes; thus, the identification of non-host plant species is essential. Therefore, the aim of this study was to evaluate the host suitability of different cover crops used in crop rotations to control two of the most devastating plant-parasitic nematodes in the Brazilian central region, Meloidogyne javanica and M. incognita. Two experi

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Cheng, Xin-Yue, Su-Ming Dai, Luo Xiao, and Bing-Yan Xie. "Influence of cellulase gene knockdown by dsRNA interference on the development and reproduction of the pine wood nematode, Bursaphelenchus xylophilus." Nematology 12, no. 2 (2010): 225–33. http://dx.doi.org/10.1163/138855409x12469541205044.

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Abstract Cellulase genes are very important for plant-parasitic nematodes to move and feed within their host plants. The pine wood nematode, Bursaphelenchus xylophilus, causes destructive damage by killing pine trees. In this study, by employing dsRNA interference technology, knockdown of a cellulase gene (Bx-eng-1) of B. xylophilus was achieved and the biological effects of RNAi on the nematode were observed. The result showed that, after 24 h soaking, dsRNA of the Bx-eng-1 gene was effectively delivered into the nematode causing a post-transcriptional gene silencing and decrease in cellulase

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Galbieri, Rafael, Richard F. Davis, Leimi Kobayasti, et al. "Influence of Cotton Root System Size on Tolerance to Rotylenchulus reniformis." Plant Disease 102, no. 12 (2018): 2473–79. http://dx.doi.org/10.1094/pdis-09-17-1424-re.

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The factors that influence the ability of cotton to minimize yield loss despite parasitism by Rotylenchulus reniformis (i.e., tolerance) were evaluated for 12 cotton genotypes. Reproduction of R. reniformis and total length of the root system were measured under greenhouse conditions, and the relationship of those variables to yield loss caused by R. reniformis in infested fields was evaluated. Values for nematodes per gram of root and root length were standardized by setting the genotype with greatest value as 100% and then calculating a percentage for each genotype. There was significant var

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Al-Sayed, Al-Sayed, and Hosny Kesba. "Interactions of three species of plant-parasitic nematodes with arbuscular mycorrhizal fungus, Glomus macrocarpus, and their effect on grape biochemistry." Nematology 7, no. 6 (2005): 945–52. http://dx.doi.org/10.1163/156854105776186406.

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AbstractThe arbuscular mycorrhizal fungus (AM fungus),Glomus macrocarpus, and the nematodes, Meloidogyne incognita and Tylenchulus semipenetrans, have negative reciprocal effects on spore production, nematode development and reproduction when coinfecting grape roots. Glomus macrocarpus was antagonistic to Rotylenchulus reniformis development and reproduction whilst the nematode was synergistic to spore production. Glomus macrocarpus alone or in combination with M. incognita or T. semipenetrans increased root protein, total soluble sugars, total carbohydrates and decreased lipids and dry matter

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Dalla Nora, Daiane, Ricardo Rubin Balardin, Tiago Edu Kaspary, Ismail Teodoro de Souza Júnior, and Cristiano Bellé. "Host status of soybean genotypes to Meloidogyne arenaria and Meloidogyne morocciensis." Revista de Ciências Agroveterinárias 19, no. 4 (2020): 428–33. http://dx.doi.org/10.5965/223811711942020428.

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Soybean crop productivity is limited by several biotic factors, particularly plant-parasitic nematodes. Several species have been reported to cause crop damage, especially those of the genus Meloidogyne. Therefore, the aim of this study was to evaluate, the reaction of 28 soybean genotypes to Meloidogyne arenaria and M. morocciensis in a greenhouse. The soybean genotypes were the same for experiments with different species of plant-parasitic nematodes and were individually inoculated with 5,000 eggs + second-stage juveniles (J2) of Meloidogyne and kept in a greenhouse. After 60 days of inocula

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Jensen, Jared P., Upender Kalwa, Santosh Pandey, and Gregory L. Tylka. "Avicta and Clariva Affect the Biology of the Soybean Cyst Nematode, Heterodera glycines." Plant Disease 102, no. 12 (2018): 2480–86. http://dx.doi.org/10.1094/pdis-01-18-0086-re.

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Nematicidal seed treatments are a relatively new strategy for managing plant-parasitic nematodes in row crops. Two such seed treatments, Avicta (abamectin) and Clariva (Pasteuria nishizawae), are marketed by Syngenta for use against Heterodera glycines in soybean production in the upper Midwest. The specific effects of these seed treatments on the biology of the nematode have not been previously reported. The effects of Avicta and Clariva on H. glycines hatching, movement, attraction, penetration, development, and reproduction were determined in controlled-environment experiments. Avicta inhib

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Hogenhout, Saskia, Melissa Mitchum, and Geert Smant. "Focus on Molecular Plant-Nematode and Plant-Insect Interactions." Molecular Plant-Microbe Interactions® 26, no. 1 (2013): 8. http://dx.doi.org/10.1094/mpmi-26-01-0008.

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Sedentary plant-parasitic nematodes engage in a long-lasting and intimate relationship with their host plant. This interaction starts in the soil when freshly hatched infective juveniles are attracted to specific parts of a host plant root system. Little is known of what determines the attractiveness of host plant roots, but a mix of biochemical and structural cues from specific host tissues in the roots likely triggers invasive behavior in nematodes. Similarly to nematodes, phloem-feeding aphids and other piercing-sucking (hemipteran) insects must establish close associations with their host

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Wang, Ke, Yu Li, Hui Xie, Wen-Jia Wu, and Chun-Ling Xu. "Pin Nematode Slow Decline of Anthurium andraeanum, a New Disease Caused by the Pin Nematode Paratylenchus shenzhenensis." Plant Disease 100, no. 5 (2016): 940–45. http://dx.doi.org/10.1094/pdis-07-15-0777-re.

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High population densities of the plant-parasitic nematode Paratylenchus shenzhenensis have been observed in association with stunted anthurium in Shenzhen, Guangdong Province, China. P. shenzhenensis is now recognized as a new pathogen that causes severe damage to anthurium. Commercial fields of anthurium infected by P. shenzhenensis present a patchy distribution of plants that are usually stunted and in decline and have yellowing leaves. Roots that are heavily infected by this nematode present brown, dark-brown, or black rot, and the entire root mass is often destroyed. In this study, a metho

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Qiu, Xiuwen, Lili Yang, Jianren Ye, et al. "Silencing of cyp-33C9 Gene Affects the Reproduction and Pathogenicity of the Pine Wood Nematode, Bursaphelenchus xylophilus." International Journal of Molecular Sciences 20, no. 18 (2019): 4520. http://dx.doi.org/10.3390/ijms20184520.

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Cytochrome P450 genes are very important for plant-parasitic nematodes to reproduce and to metabolize xenobiotic compounds generated by their host plants. The pine wood nematode (PWN), Bursaphelenchus xylophilus, causes very high annual economic losses by killing large numbers of pine trees across Asia and into Europe. In this study, we used RNA interference (RNAi) to analyze the function of the cyp-33C9 gene of PWN. Our results showed that expression of the cyp-33C9 gene was suppressed successfully after soaking nematodes for 24 h in cyp-33C9 double-stranded RNA (dsRNA). The silencing of the

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Banakar, Prakash, Amita Sharma, Catherine J. Lilley, Nagavara Prasad Gantasala, Mukesh Kumar, and Uma Rao. "Combinatorial in vitro RNAi of two neuropeptide genes and a pharyngeal gland gene on Meloidogyne incognita." Nematology 17, no. 2 (2015): 155–67. http://dx.doi.org/10.1163/15685411-00002859.

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Root-knot nematodes are the most economically important group of plant-parasitic nematodes. In the present study, functional validation using in vitro RNAi was carried out on Meloidogyne incognita with two FMRFamide-like peptide genes, flp-14 and flp-18, and a subventral pharyngeal gland specific gene, 16D10. It was found that RNAi silencing of each gene reduced the attraction of M. incognita at different time intervals both in combination and individually. Silencing of the genes reduced nematode infection by 23-30% and development as indicated by a reduction in the number of females by 26-62%

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Steeves, Ryan M., Tim C. Todd, Juliane S. Essig, and Harold N. Trick. "Transgenic soybeans expressing siRNAs specific to a major sperm protein gene suppress Heterodera glycines reproduction." Functional Plant Biology 33, no. 11 (2006): 991. http://dx.doi.org/10.1071/fp06130.

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The soybean cyst nematode (SCN), Heterodera glycines, is the major disease-causing agent limiting soybean production in the USA. The current management strategy to reduce yield loss by SCN involves the deployment of resistant soybean cultivars and rotation to non-host crops. Although this management scheme has shown some success, continued yearly yield loss estimates demonstrate the limitations of these techniques. As a result, new control strategies are needed to complement the existing methods. Reported here is a novel method of SCN control that utilises RNA interference (RNAi). Transgenic s

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Castagnone-Sereno, Philippe. "Genetic variability in parthenogenetic root-knot nematodes, Meloidogyne spp., and their ability to overcome plant resistance genes." Nematology 4, no. 5 (2002): 605–8. http://dx.doi.org/10.1163/15685410260438872.

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AbstractRoot-knot nematodes (RKN) of the genus Meloidogyne constitute the most widely distributed and damaging group of plant-parasitic nematodes. Plant resistance (R) is currently the most effective and environmentally safe method to control these pests. The mode of reproduction of the major species, i.e., apomictic (= mitotic) parthenogenesis, should theoretically lead to clonal progenies. However, the recent emergence of new virulent biotypes, able to overcome plant R genes, indicates that variability does exist in these organisms. Experiments showed that selection for virulence was possibl

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Storelli, Alan, Alexandra Minder, Andreas Keiser, et al. "Screening of sugar beet pre-breeding populations and breeding lines for resistance to Ditylenchus dipsaci penetration and reproduction." Journal of Plant Diseases and Protection 128, no. 5 (2021): 1303–11. http://dx.doi.org/10.1007/s41348-021-00483-6.

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AbstractDitylenchus dipsaci is an economically important plant-parasitic nematode affecting European sugar beets. To date, no sugar beet cultivars carrying resistance against D. dipsaci are available to farmers. To find potentially resistant sugar beet lines restricting reproduction and penetration of D. dipsaci, three consecutive in vivo bioassays were carried out. The first experiment determined the penetration rate of D. dipsaci in 79 breeding lines and 14 pre-breeding populations. Based on these results, D. dipsaci penetration and reproduction resistance of eight genotypes was intensively

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Rezaee Danesh, Younes, Abbas Mokaram Hesar, and Reza Ghaderi. "Integrative taxonomy of the willow cyst nematode, Heterodera salixophila Kirjanova, 1969, a new record of the Humuli group from Iran." Nematology 23, no. 1 (2020): 57–67. http://dx.doi.org/10.1163/15685411-bja10027.

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Summary Whilst investigating plant-parasitic nematodes in Urmia City, West Azerbaijan, Iran, soil samples were collected from the rhizosphere of willow trees (Salix babylonica) known to have a population of cyst nematodes. Morphological, numerical and molecular approaches revealed that this population represented the willow cyst nematode, Heterodera salixophila, the first report of this species from Iran. Reproduction of the nematode on S. babylonica was confirmed by inoculating 5000 viable eggs and second-stage juveniles (J2) per kg soil on 2-year-old seedlings of S. babylonica grown in pots

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Nguyen, Van Chung, Jean-Pascal Tandonnet, Samira Khallouk, et al. "Grapevine Resistance to the Nematode Xiphinema index Is Durable in Muscadine-Derived Plants Obtained from Hardwood Cuttings but Not from In Vitro." Phytopathology® 110, no. 9 (2020): 1565–71. http://dx.doi.org/10.1094/phyto-01-20-0008-r.

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Breeding for varieties carrying natural resistance (R) against plant-parasitic nematodes is a promising alternative to nematicide ban. In perennial crops, the long plant−nematode interaction increases the risk for R breaking and R durability is a real challenge. In grapevine, the nematode Xiphinema index has a high economic impact by transmitting Grapevine fanleaf virus (GFLV) and, to delay GFLV transmission, rootstocks resistant to this vector are being selected, using Muscadinia rotundifolia in particular as an R source. To optimize in fine this strategy, the durability has been studied unde

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Wram, Catherine L., and Inga A. Zasada. "Short-Term Effects of Sublethal Doses of Nematicides on Meloidogyne incognita." Phytopathology® 109, no. 9 (2019): 1605–13. http://dx.doi.org/10.1094/phyto-11-18-0420-r.

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Meloidogyne species are one of the most important groups of plant-parasitic nematodes globally because of their ability to damage most cultivated plants. Although they are widespread and economically important, there are limited control measures to combat these nematodes. New nonfumigant nematicides have been discovered that have the potential to be widely utilized for the management of plant-parasitic nematodes. Because of the longer half-lives in soil and lower toxicity of new nematicides compared with traditional fumigant and nonfumigant nematicides, understanding how nematodes respond to s

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Topalović, Olivera, Holger Heuer, Annette Reineke, Jana Zinkernagel, and Johannes Hallmann. "Antagonistic role of the microbiome from a Meloidogyne hapla-suppressive soil against species of plant-parasitic nematodes with different life strategies." Nematology 22, no. 1 (2019): 75–86. http://dx.doi.org/10.1163/15685411-00003285.

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Summary In certain soils populations of plant-parasitic nematodes (PPN) decline. Understanding this effect may open up environmentally friendly management options. We identified such a suppressive soil containing virtually no PPN. Inoculated Meloidogyne hapla declined in this soil more than in a control soil and reproduction on tomato was reduced. The extracted soil microbiome alone decreased root invasion of second-stage juveniles (J2) and progeny as well as the native soil. We tested the antagonistic potential against PPN that differ in life strategies. The microbiome was most suppressive ag

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Agudelo, P., and D. Harshman. "First Report of the Spiral Nematode Scutellonema brachyurum on Lilyturf in the United States." Plant Disease 95, no. 1 (2011): 74. http://dx.doi.org/10.1094/pdis-09-10-0665.

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Lilyturf (Liriope muscari (Decne.) L.H. Bailey), an herbaceous plant, is commonly used in landscaping including borders (along sidewalks, driveways, and trees) and mass plantings as groundcover in the southeastern United States. In December of 2009, a soil sample was submitted to our lab for diagnosis of plant-parasitic nematodes from an area planted with lilyturf located on the Clemson University main campus. A high population density (1,220 individuals/100 cm3 of soil) of spiral nematodes (Scutellonema brachyurum (Steiner, 1938) Andrássy, 1958) was found by routine extraction by sugar centri

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Okorley, Benjamin A., Charles Agyeman, Naalamle Amissah, and Seloame T. Nyaku. "Screening Selected Solanum Plants as Potential Rootstocks for the Management of Root-Knot Nematodes (Meloidogyne incognita)." International Journal of Agronomy 2018 (September 25, 2018): 1–9. http://dx.doi.org/10.1155/2018/6715909.

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Root-knot nematodes (RKNs) (Meloidogyne spp.) represent agricultural pest of many economic crops, including tomatoes and potatoes. They advance a complex parasitic relationship with roots of tomato plants leading to modification of host structural and physiological functions in addition to significant yield loss. Resistance in solanaceous plants to RKNs has been identified and associated with the possession of Mi gene. The reaction of four Solanum rootstocks (S. aethiopicum L., S. macrocarpon L., S. lycopersicum L.“Mongal F1,” and S. lycopersicum L. “Samrudhi F1”) was evaluated in pots and in

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Wram, Catherine L., and Inga Zasada. "Differential Response of Meloidogyne, Pratylenchus, Globodera, and Xiphinema Species to the Nematicide Fluazaindolizine." Phytopathology® 110, no. 12 (2020): 2003–9. http://dx.doi.org/10.1094/phyto-05-20-0189-r.

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This research focused on the effects of fluazaindolizine on a diversity of plant-parasitic nematodes. In microwell assays, 24-h dose-response curves were generated for several species and populations of Meloidogyne, Pratylenchus neglectus, P. penetrans, Globodera ellingtonae, and Xiphinema americanum. In a greenhouse study, the impact of fluazaindolizine on fecundity of M. incognita, M. hapla, and M. chitwoodi was tested by exposing nematodes for 24 h in solution and inoculating on tomato. The average 24-h ED50s (dose that resulted in the immobility of 50% of exposed nematodes) for M. hapla, M

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Silva, Julio Carlos P., Vicente P. Campos, Aline F. Barros, et al. "Plant Volatiles Reduce the Viability of the Root-Knot Nematode Meloidogyne incognita Either Directly or When Retained in Water." Plant Disease 102, no. 11 (2018): 2170–79. http://dx.doi.org/10.1094/pdis-01-18-0143-re.

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Volatile organic compounds (VOC) produced by green residues for the management of plant-parasitic nematodes are poorly studied for oilseed plants and some Brassica spp. To investigate the activity of VOC in vitro and as biofumigants, dry and aqueous macerates of broccoli (Brassica oleracea var. italica) shoots and sunflower (Helianthus annuus) seed were used against the root-knot nematode Meloidogyne incognita. VOC produced by sunflower seed caused higher mortality of M. incognita second-stage juveniles (J2) than VOC produced by broccoli shoots but both plant species were equally effective in

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Wilson, Michael, Jamie Robertson, and Robbie Rae. "The chemotactic response of Phasmarhabditis hermaphrodita (Nematoda: Rhabditida) to cues of Deroceras reticulatum (Mollusca: Gastropoda)." Nematology 8, no. 2 (2006): 197–200. http://dx.doi.org/10.1163/156854106777998746.

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AbstractEntomopathogenic nematodes use a range of cues released by insects to locate hosts but there has been no research on how the slug-parasitic nematode, Phasmarhabditis hermaphrodita, finds potential hosts. We exposed P. hermaphrodita to a range of cues associated with the highly susceptible host Deroceras reticulatum. Cues included foot and mantle mucus and faeces from live D. reticulatum and volatile cues released from this slug. We also compared the attractiveness of live and dead D. reticulatum, and the attractiveness of infected and non-infected D. reticulatum. Phasmarhabditis hermap

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Gomez-Barcina, A., P. Castillo, and R. M. Jimenez-Diaz. "Plant Parasitic Nematodes Associated With Chickpea in Southern Spain and Effect of Soil Temperature On Reproduction of Pratylenchus Thornei." Nematologica 42, no. 2 (1996): 211–19. http://dx.doi.org/10.1163/004325996x00057.

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Silva, Beatriz De Almeida E., Rayane Monique Sete Da Cruz, Angélica Miamoto, Odair Alberton, Camila Da Silva, and Claudia Regina Dias Arieira. "Interaction between mycorrhizal fungi and Meloidogyne javanica on the growth and essential oil composition of basil (Ocimum basilicum)." March 2021, no. 15(03):2021 (March 5, 2021): 416–21. http://dx.doi.org/10.21475/ajcs.21.15.03.p2926.

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Plant-parasitic nematodes and arbuscular mycorrhizal fungi (AMF) have been reported to alter the yield and chemical composition of basil (Ocimum basilicum) essential oil. The aim of this study was to evaluate the effectiveness of AMF to control the root-knot nematode Meloidogyne javanica in basil and to investigate the effects of nematode-AMF interactions on plant growth, phosphorus (P) absorption, and essential oil composition. The experiment was conducted under greenhouse conditions following a completely randomized 3 × 2 factorial (two fungal species and an uninoculated control × inoculated

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Renčo, M., N. Sasanelli, I. Papajová, and L. Maistrello. "Nematicidal effect of chestnut tannin solutions on the potato cyst nematode Globodera rostochiensis (Woll.) Barhens." Helminthologia 49, no. 2 (2012): 108–14. http://dx.doi.org/10.2478/s11687-012-0022-1.

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AbstractRecently, tannins have been reported for their nematicidal activity against the root-knot nematode Meloidogyne javanica both in vitro and in pot experiments in addition to a biocidal effect on a wide range of fungi, bacteria and yeasts. However, no information is available on the effect of these polyphenols on plant parasitic cyst nematodes. Therefore, an in vitro and a pot experiments on potato were undertaken to investigate the nematicidal activity of tannin aqueous solutions at different concentrations on the potato cyst nematode Globodera rostochiensis. In the in vitro experiment d

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Abdel-Baset, Sahar H., and Ahmed A. M. Dawabah. "Phytonematodes Associating Wheat in North Eastern Egypt and Pathogenicity of Heterodera avenae on Certain Cereal Cultivars." International Journal of Phytopathology 9, no. 3 (2020): 165–72. http://dx.doi.org/10.33687/phytopath.009.03.3434.

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A survey of plant-parasitic nematodes (PPNs) associating wheat in Ismailia governorate, northeastern Egypt was carried-out during 2016/2017 and 2017/2018 growing seasons. Results showed that seven PPNs genera and/or species were found associating wheat roots. These genera and/or species, in descending order of frequency, were: Tylenchorhynchus spp. (14%), Helicotylenchus spp. (10%), Heterodera avenae (8%), Ditylenchus spp. (5%), Meloidogyne javanica (4%), Pratylenchus spp. and Xiphinema spp. (3%, each). Two screening pot experiments, in two consecutive growing seasons (2017/17 and 2017/18) wer

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Xue, Qi, Xiao-Qin Wu, Wan-Jun Zhang, Li-Na Deng, and Miao-Miao Wu. "Cathepsin L-like Cysteine Proteinase Genes Are Associated with the Development and Pathogenicity of Pine Wood Nematode, Bursaphelenchus xylophilus." International Journal of Molecular Sciences 20, no. 1 (2019): 215. http://dx.doi.org/10.3390/ijms20010215.

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The pine wood nematode (PWN), Bursaphelenchus xylophilus, is the pathogen of pine wilt disease (PWD), resulting in huge losses in pine forests. However, its pathogenic mechanism remains unclear. The cathepsin L-like cysteine proteinase (CPL) genes are multifunctional genes related to the parasitic abilities of plant-parasitic nematodes, but their functions in PWN remain unclear. We cloned three cpl genes of PWN (Bx-cpls) by rapid amplification of cDNA ends (RACE) and analyzed their characteristics using bioinformatic methods. The tissue specificity of cpl gene of PWN (Bx-cpl) was studied using

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Nchore, Shem Bonuke, J. W. Waceke, and G. M. Kariuki. "Efficacy of Selected Agroindustrial Wastes in Managing Root-Knot Nematodes on Black Nightshade in Kenya." ISRN Agronomy 2012 (October 14, 2012): 1–12. http://dx.doi.org/10.5402/2012/364842.

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Black nightshade is commercially cultivated in Kenya as a source of nutrition and income to the rural populations. Besides insect pests, root-knot nematodes (RKN) are important production constraints of this vegetable. Little information is available on the efficacy of Tithonia diversifolia Hemsl (TD) and agro-industrial wastes of pyrethrum marc (PM) and tea residue (Tres) on RKN. Greenhouse experiments were conducted to determine the optimum levels of amending soils with TD, PM, vegetable waxy resins (VWR), Tres and cattle manure (CM) at their respective rates for management of RKN. The amend

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Melakeberhan, Haddish, Gregory Bonito, and Alexandra N. Kravchenko. "Application of Nematode Community Analyses-Based Models towards Identifying Sustainable Soil Health Management Outcomes: A Review of the Concepts." Soil Systems 5, no. 2 (2021): 32. http://dx.doi.org/10.3390/soilsystems5020032.

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Soil health connotes the balance of biological, physicochemical, nutritional, structural, and water-holding components necessary to sustain plant productivity. Despite a substantial knowledge base, achieving sustainable soil health remains a goal because it is difficult to simultaneously: (i) improve soil structure, physicochemistry, water-holding capacity, and nutrient cycling; (ii) suppress pests and diseases while increasing beneficial organisms; and (iii) improve biological functioning leading to improved biomass/crop yield. The objectives of this review are (a) to identify agricultural pr

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Akinsanya, Aminat Korede, Steve Olaoluwa Afolami, Peter Kulakow, and Danny Coyne. "The root-knot nematode, Meloidogyne incognita, profoundly affects the production of popular biofortified cassava cultivars." Nematology 22, no. 6 (2020): 667–76. http://dx.doi.org/10.1163/15685411-00003331.

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Summary Despite being the single largest cassava-producing country, yields in Nigeria remain consistently poor and among the lowest. Regionally, yields are also particularly low across Africa. Pests and pathogens, including plant-parasitic nematodes, play an important role in this current yield deficit. African countries are not only faced with the problem of food security but also that of nutritional deficiency, due to limited micronutrients in the diet. In this study, six biofortified cultivars were evaluated for their response to inoculation with approximately 30 000 root-knot nematode (Mel

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Meyer, Jürgen, Lemma Ebssa, and Hans-Michael Poehling. "Effects of NeemAzal-U on survival, host infestation and reproduction of entomopathogenic and plant-parasitic nematodes: Heterorhabditis bacteriophora and Meloidogyne incognita." Journal of Plant Diseases and Protection 119, no. 4 (2012): 142–51. http://dx.doi.org/10.1007/bf03356433.

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Li, Junyi, Chunling Xu, Sihua Yang, et al. "A Venom Allergen-Like Protein, RsVAP, the First Discovered Effector Protein of Radopholus similis That Inhibits Plant Defense and Facilitates Parasitism." International Journal of Molecular Sciences 22, no. 9 (2021): 4782. http://dx.doi.org/10.3390/ijms22094782.

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Radopholus similis is a migratory endoparasitic nematode that is extremely harmful to host plants. Venom allergen-like proteins (VAPs) are members of the cysteine-rich secretory protein family that are widely present in plants and animals. In this study, we cloned a VAP gene from R. similis, designated as RsVAP. RsVAP contains an open reading frame of 1089 bp encoding 362 amino acids. RsVAP is specifically expressed in the esophageal gland, and the expression levels of RsVAP are significantly higher in juveniles than in other life stages of R. similis. This expression pattern of RsVAP was cons

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Lombardero, M. J., M. P. Ayres, F. E. Krivak-Tetley, and K. N. E. Fitza. "Population biology of the European woodwasp,Sirex noctilio, in Galicia, Spain." Bulletin of Entomological Research 106, no. 5 (2016): 569–80. http://dx.doi.org/10.1017/s0007485316000043.

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AbstractSirex noctilioFabricius (Hymenoptera, Siricidae) is rare and rarely studied where it is native in Eurasia, but is a widespread pest of pines in the Southern Hemisphere. Here we report on the abundance, basic biology, host use patterns and natural enemies of nativeS. noctilioin Galicia, Spain. Most trees attacked byS. noctiliofailed to produce any adult progeny: >90% of emergences came from <20% of the attacked trees. The highest reproduction was inPinus pinaster, followed byPinus sylvestrisandPinus radiata.The proportions ofS. noctiliorequiring 1, 2 or 3 years for development wer

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Nakamura, Yuki, Sawako Kawai, Fumiko Yukuhiro, et al. "Prevalence of Cardinium Bacteria in Planthoppers and Spider Mites and Taxonomic Revision of “Candidatus Cardinium hertigii” Based on Detection of a New Cardinium Group from Biting Midges." Applied and Environmental Microbiology 75, no. 21 (2009): 6757–63. http://dx.doi.org/10.1128/aem.01583-09.

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ABSTRACT Cardinium bacteria, members of the phylum Cytophaga-Flavobacterium-Bacteroides (CFB), are intracellular bacteria in arthropods that are capable of inducing reproductive abnormalities in their hosts, which include parasitic wasps, mites, and spiders. A high frequency of Cardinium infection was detected in planthoppers (27 out of 57 species were infected). A high frequency of Cardinium infection was also found in spider mites (9 out of 22 species were infected). Frequencies of double infection by Cardinium and Wolbachia bacteria (Alphaproteobacteria capable of manipulating reproduction

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Shesteperov. "EPIPHYTOTIOLOGY OF PHYTOHELMINTHIASIS IN THE 21st CENTURY." THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, no. 21 (May 29, 2020): 514–18. http://dx.doi.org/10.31016/978-5-9902341-5-4.2020.21.514-518.

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Plant parasitic nematodes are recognized as one of the biggest threats to crop production. Annual crop loss from phytohelminths range from 78 to 128 billion US Dollars. The initial position of the epiphytotic process (EP) theory in phytohelminthiasis is to recognize the infestation as a form of parasitism, and therefore, for the phytohelminth species to be preserved, they need a mandatory and constant change by their pathogen of individual host plants, which is externally perceived as an infection. Such process, i.e. a continuous chain of systematic incidence, occurs involving infected plants

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Ortiz, Anthony M., Brent S. Sipes, Susan C. Miyasaka, and Alton S. Arakaki. "Green Manure Crops for Management of Meloidogyne javanica and Pythium aphanidermatum." HortScience 50, no. 1 (2015): 90–98. http://dx.doi.org/10.21273/hortsci.50.1.90.

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To determine the potential to suppress root-knot nematode Meloidogyne javanica, 10 genotypes of seven green manure species were evaluated in a greenhouse study. These species were: black hollyhock (Alcea rosea L.); canola (Brassica napus L.); cabbage (B. oleracea L.); French marigold (Tagetes patula L.), sorghum–sudangrass [Sorghum bicolor (L.) Moench nothosubsp. drummondii (Steud.) de Wet ex Davidse]; sunn hemp (Crotalaria juncea L.); and yellow mustard (Sinapis alba L.). Plants were inoculated with eggs of M. javanica and after 6 weeks, nematode eggs and reproduction factor (Rf = final egg p

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Brown, Amanda M. V. "Endosymbionts of Plant-Parasitic Nematodes." Annual Review of Phytopathology 56, no. 1 (2018): 225–42. http://dx.doi.org/10.1146/annurev-phyto-080417-045824.

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Some of the most agriculturally important plant-parasitic nematodes (PPNs) harbor endosymbionts. Extensive work in other systems has shown that endosymbionts can have major effects on host virulence and biology. This review highlights the discovery, development, and diversity of PPN endosymbionts, incorporating inferences from genomic data. Cardinium, reported from five PPN hosts to date, is characterized by its presence in the esophageal glands and other tissues, with a discontinuous distribution across populations, and genomic data suggestive of horizontal gene exchange. Xiphinematobacter oc

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Kutywayo, Vhukile, and Thomas H. Been. "Host status of six major weeds to Meloidogyne chitwoodi and Pratylenchus penetrans, including a preliminary field survey concerning other weeds." Nematology 8, no. 5 (2006): 647–57. http://dx.doi.org/10.1163/156854106778877839.

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Abstract A glasshouse experiment was carried out to investigate the host status of six important weeds in intensive agricultural cropping systems to Meloidogyne chitwoodi and Pratylenchus penetrans. Senecio vulgaris L., Capsella bursa-pastoris (L.) Medic. and Solanum nigrum L. were hosts of M. chitwoodi with reproduction factors of 2.5, 2.6 and 7.8, respectively. Echinochloa crusgalli (L.) Beauv. and Stellaria media (L.) Vill. were non-hosts for M. chitwoodi as no galls or eggs were observed. Galinsoga parviflora Cav. is considered a poor host with one out of eight plants producing an egg mass

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Max, R. A., A. E. Kimambo, A. A. Kassuku, L. A. Mtenga, and P. J. Buttery. "Tannins: an environmentally friendly method of controlling intestinal parasites in ruminants in the tropics and subtropics?" Proceedings of the British Society of Animal Science 2005 (2005): 30. http://dx.doi.org/10.1017/s1752756200009418.

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Infections caused by the infestation of the gastrointestinal tract with parasitic nematodes are among important factors responsible for poor productivity of livestock including small ruminants. These infections cause significant losses in terms of poor growth, reduced reproductive performance and mortality. Nematode control is routinely by the use of synthetic chemical anthelmintics. However, over-dependency and even misuse of these anthelmintics has resulted in the emergence and spread of nematode populations that are resistant to these pharmaceutical agents. This has led to increases in the

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Stirling, G. R., and G. M. Lodge. "A survey of Australian temperate pastures in summer and winter rainfall zones: soil nematodes, chemical, and biochemical properties." Soil Research 43, no. 8 (2005): 887. http://dx.doi.org/10.1071/sr05079.

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Data for soil nematode numbers, total microbial activity, microbial biomass carbon (C), and various soil chemical properties were collected from permanent and semi-permanent pastures at 108 locations in 2 contrasting environments: a summer rainfall zone in northern New South Wales (n = 60) and a winter rainfall zone in south-east South Australia and western Victoria (n = 48). Nematodes were also categorised according to their feeding habits and reproductive rates, and the abundance of various nematode groups was used to compute 3 indices that indicate the condition of the soil food web [enrich

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Žibrat, Uroš, Barbara Gerič Stare, Matej Knapič, Nik Susič, Janez Lapajne, and Saša Širca. "Detection of Root-Knot Nematode Meloidogyne luci Infestation of Potato Tubers Using Hyperspectral Remote Sensing and Real-Time PCR Molecular Methods." Remote Sensing 13, no. 10 (2021): 1996. http://dx.doi.org/10.3390/rs13101996.

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Root-knot nematodes (Meloidogyne spp.) are considered the most aggressive, damaging, and economically important group of plant-parasitic nematodes and represent a significant limiting factor for potato (Solanum tuberosum) production and tuber quality. Meloidogyne luci has previously been shown to be a potato pest having significant reproductive potential on the potato. In this study we showed that M. luci may develop a latent infestation without visible symptoms on the tubers. This latent infestation may pose a high risk for uncontrolled spread of the pest, especially via seed potato. We devel

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