Article
Plant Sciences
Ioannis O. Giannakou, Stefanos Kamaras
Summary: Fluopyram is more effective than oxamyl in controlling root-knot nematodes, causing paralysis and death at lower concentrations. It shows superior efficacy in soil and higher toxicity to non-target organisms compared to oxamyl.
Article
Plant Sciences
Alexandre F. S. Mello, Gabriela Silva, Raquel L. de Sousa, Alexandre V. S. Barbosa, Erich Y. T. Nakasu, Giovani O. Silva, Danielle Biscaia, Jadir B. Pinheiro
Summary: This study assessed the resistance of two sweetpotato clones and four commercial sweetpotato genotypes to three different Meloidogyne species, and found that 'CIP BRS Nuti' and 'Canadense' are the first South American commercial cultivars with triple nematode resistance.
Article
Plant Sciences
Aida Magdalena Fullana, Alejandro Exposito, Nuria Escudero, Marina Cunquero, Pablo Loza-Alvarez, Ariadna Gine, F. Javier Sorribas
Summary: A rotation study of ungrafted and grafted tomato-melon-pepper-watermelon was conducted in a plastic greenhouse, using resistant rootstocks 'Brigeor', Cucumis metuliferus, 'Oscos' and Citrullus amarus for tomato, melon, pepper and watermelon, respectively. The study aimed to investigate two different virulent strains (Meloidogyne incognita) on resistant tomato crops, showing that the reproduction index of the virulent strain was below 10%.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Leidy Rusinque, Filomena Nobrega, Laura Cordeiro, Clara Serra, Maria L. Inacio
Summary: Potato is the third most important crop worldwide, with Meloidogyne luci, a tropical root-knot nematode, being detected parasitizing potato for the first time in the Azores islands of Portugal. Detailed characterization through morphological, biochemical, and molecular analysis was conducted, providing valuable information on the distribution of this plant-parasitic nematode.
Article
Microbiology
Angelica de Souza Gouveia, Thalita Suelen Avelar Monteiro, Huarlen Marcio Balbino, Fernanda Corbelli de Magalhaes, Maria Eduarda Soares Ramos, Vitor Augusto Silva Moura, Paulo Henrique Dionizio Luiz, Maria Goreti de Almeida Oliveira, Leandro Grassi de Freitas, Humberto Josue de Oliveira Ramos
Summary: This study investigated the mechanisms induced by P. chlamydosporia in controlling Meloidogyne javanica, a harmful nematode, in tomato plants. The fungus was found to activate defense responses and modify gene expression and metabolite profiles in the host plant, contributing to the control of the nematode. The findings suggest that the interaction between the fungus and the nematode involves the activation of specific pathways and cascades related to plant defense.
MICROBIOLOGICAL RESEARCH
(2023)
Article
Plant Sciences
Haibo Long, Yanfang Sun, Yuan Chen, Yueling Pei, Tuizi Feng, Haiyan Che
Summary: This study investigated the occurrence, severity, and population distribution of root-knot nematodes in pepper crops on Hainan Island, China. The dominant species found was M. enterolobii, to which all tested pepper cultivars were highly susceptible. The cultivars exhibited varying levels of resistance to M. incognita. The results provide valuable information for effective control of root-knot nematodes.
Article
Multidisciplinary Sciences
Laura Soraia Perpetuo, Maria J. M. da Cunha, Maria Teresa Batista, Isabel Luci Conceicao
Summary: Both Solanum linnaeanum and S. sisymbriifolium showed resistance to Meloidogyne chitwoodi, making them potential sources for developing nonchemical and sustainable management strategies to protect crops.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Catherine L. Wram, Cedar N. Hesse, Inga A. Zasada
Summary: This study examined the transcriptional changes in Meloidogyne incognita second-stage juveniles after exposure to different nematicides, providing insights into the modes-of-action of these nematicides and identifying potential targets for resistance development. The findings also shed light on cellular pathways as potential nematicide targets and offer a foundation for confirming unknown modes-of-action.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Miguel Talavera, Tim C. Thoden, Maria D. Vela-Delgado, Soledad Verdejo-Lucas, Sara Sanchez-Moreno
Summary: The novel sulfonamide nematicide fluazaindolizine showed high selectivity towards root-knot nematodes, with minimal impact on other plant-parasitic nematodes. However, there were some slight adverse effects on soil functions as indicated by changes in certain soil food web indices.
PEST MANAGEMENT SCIENCE
(2021)
Article
Plant Sciences
Aatika Sikandar, Fukun Gao, Yixue Mo, Qian Chen, Rana Muhammad Kaleem Ullah, Haiyan Wu
Summary: The biocontrol efficacy of Aspergillus tubingensis GX3 against Meloidogyne enterolobii was evaluated in this study. The findings showed that egg hatching inhibition and mortality of M. enterolobii increased with increasing concentration of fermentation and exposure time. Fermentation treatment increased plant biomass, decreased second-stage juvenile invasion, and inhibited nematode development and reproduction.
Article
Agronomy
Valter Cruz-Magalhaes, Rafaela A. Guimaraes, Julio C. P. da Silva, Amanda F. de Faria, Marcio P. Pedroso, Vicente P. Campos, Phellippe A. S. Marbach, Flavio H. de Medeiros, Jorge T. De Souza
Summary: Bacillus strains BMH and INV, closely related to Bacillus velezensis, individually reduced the number of galls and eggs of M. incognita by more than 90% in tomato roots. However, when combined (BMH + INV), the suppression of RKN and tomato growth was lower compared to single-strain applications.
PEST MANAGEMENT SCIENCE
(2022)
Article
Plant Sciences
Yara Noureddine, Joffrey Mejias, Martine da Rocha, Sebastien Thomine, Michael Quentin, Pierre Abad, Bruno Favery, Stephanie Jaubert-Possamai
Summary: The SPL7/MIR408/MIR398 module plays a crucial role in regulating the development of nematode-induced feeding cells. These microRNAs form a complex network with their regulator and targets. This study reveals the regulatory mechanism of plant copper homeostasis in nematode-induced reprogramming of root cells.
Review
Microbiology
David Pires, Claudia S. L. Vicente, Esther Menendez, Jorge M. S. Faria, Leidy Rusinque, Maria J. Camacho, Maria L. Inacio
Summary: This article reviews the potential of bacterial and fungal agents in suppressing the most important plant-parasitic nematodes, which pose a significant threat to global food security and plant health. With restrictions on the use of chemical control methods, alternative control strategies are urgently needed.
Article
Entomology
Seyedeh Najmeh Banihashemian, Salar Jamali, Morteza Golmohammadi, Mahmood Ghasemnezhad
Summary: This study isolated and identified endophytic bacteria from kiwifruit orchards and evaluated their antagonistic ability against root-knot nematodes (RKNs). The results showed that certain endophytic bacteria significantly reduced the number of nematodes and improved the growth parameters of kiwifruit plants. Therefore, endophytic bacteria may be effective microbial bio-fertilizers for managing RKNs and improving kiwifruit plant growth.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2022)
Article
Agronomy
Sergio Molinari
Summary: Different antioxidant compounds (ACs) were tested on vegetable plants to evaluate their effectiveness in reducing root-knot nematode (RKN) infection. Low doses of ACs increased nematode infection, while higher doses acted as effective resistance inducers. The activation of defense mechanisms often had negative effects on plant fitness, but provided relief from symptoms in infected plants. Some compounds like salicylic acid, methyl-salicylate, and ascorbate significantly reduced infection, while others like methyl jasmonate were ineffective.