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Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida

The Mi-gene is widely used in different tomato cultivars to resist several Meloidogyne spp. (root-kot nematode; RKN), including M. incognita, M. javanica, and M. arenaria. Tomato cultivars with the Mi-gene are widely used in fields. However, factors such as temperatures, high initial population dens...

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Autores principales: Espinoza-Lozano, Lisbeth, Joseph, S., Crow, W. T., Noling, J., Mekete, T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sciendo 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9583418/
https://www.ncbi.nlm.nih.gov/pubmed/36338421
http://dx.doi.org/10.2478/jofnem-2022-0032
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author Espinoza-Lozano, Lisbeth
Joseph, S.
Crow, W. T.
Noling, J.
Mekete, T.
author_facet Espinoza-Lozano, Lisbeth
Joseph, S.
Crow, W. T.
Noling, J.
Mekete, T.
author_sort Espinoza-Lozano, Lisbeth
collection PubMed
description The Mi-gene is widely used in different tomato cultivars to resist several Meloidogyne spp. (root-kot nematode; RKN), including M. incognita, M. javanica, and M. arenaria. Tomato cultivars with the Mi-gene are widely used in fields. However, factors such as temperatures, high initial population densities, and gene dosage can interfere with the expression of this gene. In addition, the presence of virulent species of RKN can limit the usefulness of the gene. One of the virulent species is M. haplanaria, which was identified infecting RKN-resistant tomato in Florida in 2015. The objectives of this study were to determine the initial damage threshold of M. haplanaria on tomato under greenhouse conditions and to analyze the impact of temperature and genetic background on virulence in tomato cultivars. The results showed a preliminary damage threshold of three eggs and J2/cm(3) of soil. In addition, it was observed that M. haplanaria has a shorter life cycle than the virulent M. enterolobii and can infect, reproduce, and damage homozygous or heterozygous RKN-resistant tomato plants. This research demonstrated that M. haplanaria should be considered highly virulent on RKN-resistant tomato and is an important threat to agriculture in Florida.
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spelling pubmed-95834182022-11-03 Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida Espinoza-Lozano, Lisbeth Joseph, S. Crow, W. T. Noling, J. Mekete, T. J Nematol Research Paper The Mi-gene is widely used in different tomato cultivars to resist several Meloidogyne spp. (root-kot nematode; RKN), including M. incognita, M. javanica, and M. arenaria. Tomato cultivars with the Mi-gene are widely used in fields. However, factors such as temperatures, high initial population densities, and gene dosage can interfere with the expression of this gene. In addition, the presence of virulent species of RKN can limit the usefulness of the gene. One of the virulent species is M. haplanaria, which was identified infecting RKN-resistant tomato in Florida in 2015. The objectives of this study were to determine the initial damage threshold of M. haplanaria on tomato under greenhouse conditions and to analyze the impact of temperature and genetic background on virulence in tomato cultivars. The results showed a preliminary damage threshold of three eggs and J2/cm(3) of soil. In addition, it was observed that M. haplanaria has a shorter life cycle than the virulent M. enterolobii and can infect, reproduce, and damage homozygous or heterozygous RKN-resistant tomato plants. This research demonstrated that M. haplanaria should be considered highly virulent on RKN-resistant tomato and is an important threat to agriculture in Florida. Sciendo 2022-09-30 /pmc/articles/PMC9583418/ /pubmed/36338421 http://dx.doi.org/10.2478/jofnem-2022-0032 Text en © 2022 Espinoza-Lozano et al. published by Sciendo https://creativecommons.org/licenses/by/4.0/This work is licensed under the Creative Commons Attribution 4.0 International License.
spellingShingle Research Paper
Espinoza-Lozano, Lisbeth
Joseph, S.
Crow, W. T.
Noling, J.
Mekete, T.
Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida
title Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida
title_full Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida
title_fullStr Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida
title_full_unstemmed Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida
title_short Meloidogyne Haplanaria: An Emerging Threat to Tomato Production in Florida
title_sort meloidogyne haplanaria: an emerging threat to tomato production in florida
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9583418/
https://www.ncbi.nlm.nih.gov/pubmed/36338421
http://dx.doi.org/10.2478/jofnem-2022-0032
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