The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants

This work relates the biological cycle of the plant-parasitic nematode Nacobbus aberrans and its impact on the morphology and physiology of tomato (Solanum lycopersicum L) plants. Tomato var. platense plants were grown in 10 L pots in a greenhouse using a previously sterilized substrate. Half of the...

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Autores principales: Garita, Sebastián Andrés, Bernardo, Valeria Fernanda, González, Matías Alberto, Rípodas, Juan Ignacio, Arango, María Cecilia, Ruscitti, Marcela Fabiana
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Agrarias
Nacobbus aberrans
Plant parasitic nematodes
galls
Biotic stress
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/164550
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-164550
record_format dspace
spelling I19-R120-10915-1645502024-04-08T20:06:23Z http://sedici.unlp.edu.ar/handle/10915/164550 The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants Garita, Sebastián Andrés Bernardo, Valeria Fernanda González, Matías Alberto Rípodas, Juan Ignacio Arango, María Cecilia Ruscitti, Marcela Fabiana 2021-09-03 2024-04-08T14:58:25Z en Ciencias Agrarias Nacobbus aberrans Plant parasitic nematodes galls Biotic stress This work relates the biological cycle of the plant-parasitic nematode Nacobbus aberrans and its impact on the morphology and physiology of tomato (Solanum lycopersicum L) plants. Tomato var. platense plants were grown in 10 L pots in a greenhouse using a previously sterilized substrate. Half of the plants were inoculated at the time of transplanting with 5000 eggs of the nematode (parasitized treatment) and the other half remained non- inoculated (control). Histological sections performed 75 days after inoculation showed that the establishment of adult females of N. aberrans in roots caused a displacement of the xylem and phloem. This alteration induced a series of changes and symptoms in parasitized plants compared to control plants. Stomatic conductance, photosystem II efficiency, and CO2 fixation (net photosynthesis) showed significantly lower values in parasitized plants. Leaf chlorophyll content and soluble protein content were also reduced. Plants inoculated with the nematode showed a higher accumulation of osmoregulatory metabolites such as proline and sugars as well as malondialdehyde, an indicator of cell membrane damage. Results indicate that the symptoms and alterations caused by this phytoparasite are consistent with those of a plant subjected to water stress. Instituto de Fisiología Vegetal Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Nacobbus aberrans
Plant parasitic nematodes
galls
Biotic stress
spellingShingle Ciencias Agrarias
Nacobbus aberrans
Plant parasitic nematodes
galls
Biotic stress
Garita, Sebastián Andrés
Bernardo, Valeria Fernanda
González, Matías Alberto
Rípodas, Juan Ignacio
Arango, María Cecilia
Ruscitti, Marcela Fabiana
The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants
topic_facet Ciencias Agrarias
Nacobbus aberrans
Plant parasitic nematodes
galls
Biotic stress
description This work relates the biological cycle of the plant-parasitic nematode Nacobbus aberrans and its impact on the morphology and physiology of tomato (Solanum lycopersicum L) plants. Tomato var. platense plants were grown in 10 L pots in a greenhouse using a previously sterilized substrate. Half of the plants were inoculated at the time of transplanting with 5000 eggs of the nematode (parasitized treatment) and the other half remained non- inoculated (control). Histological sections performed 75 days after inoculation showed that the establishment of adult females of N. aberrans in roots caused a displacement of the xylem and phloem. This alteration induced a series of changes and symptoms in parasitized plants compared to control plants. Stomatic conductance, photosystem II efficiency, and CO2 fixation (net photosynthesis) showed significantly lower values in parasitized plants. Leaf chlorophyll content and soluble protein content were also reduced. Plants inoculated with the nematode showed a higher accumulation of osmoregulatory metabolites such as proline and sugars as well as malondialdehyde, an indicator of cell membrane damage. Results indicate that the symptoms and alterations caused by this phytoparasite are consistent with those of a plant subjected to water stress.
format Articulo
Articulo
author Garita, Sebastián Andrés
Bernardo, Valeria Fernanda
González, Matías Alberto
Rípodas, Juan Ignacio
Arango, María Cecilia
Ruscitti, Marcela Fabiana
author_facet Garita, Sebastián Andrés
Bernardo, Valeria Fernanda
González, Matías Alberto
Rípodas, Juan Ignacio
Arango, María Cecilia
Ruscitti, Marcela Fabiana
author_sort Garita, Sebastián Andrés
title The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants
title_short The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants
title_full The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants
title_fullStr The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants
title_full_unstemmed The false root-knot nematode: Modification of the root anatomy and alteration of the physiological performance in tomato plants
title_sort false root-knot nematode: modification of the root anatomy and alteration of the physiological performance in tomato plants
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/164550
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