Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid
Nematodes of the genus Meloidogyne spp. are one of the tomato culture’s main pathogens. According to their soil infestation level, physiological changes may occur. Consequently, it is extremely important to employ given products to minimize their effect. A feasible option is the salicylic acid, a p...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2020-12-01
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| Series: | Bioscience Journal |
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| Online Access: | https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/48174 |
| _version_ | 1818285053762863104 |
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| author | Francisco Romário Andrade Figueiredo Jackson Silva Nóbrega João Everthon da Silva Ribeiro Toshik Iarley da Silva Manoel Bandeira de Albuquerque Guilherme Silva de Podestá Luciana Cordeiro do Nascimento Élida Barbosa Corrêa |
| author_facet | Francisco Romário Andrade Figueiredo Jackson Silva Nóbrega João Everthon da Silva Ribeiro Toshik Iarley da Silva Manoel Bandeira de Albuquerque Guilherme Silva de Podestá Luciana Cordeiro do Nascimento Élida Barbosa Corrêa |
| author_sort | Francisco Romário Andrade Figueiredo |
| collection | DOAJ |
| description |
Nematodes of the genus Meloidogyne spp. are one of the tomato culture’s main pathogens. According to their soil infestation level, physiological changes may occur. Consequently, it is extremely important to employ given products to minimize their effect. A feasible option is the salicylic acid, a phytohormone that can induce into resistance due to its ability to increase the production level of some pathogenicity proteins. Therefore, the purpose hereof was to assess the effect of salicylic acid on the physiology of tomato plants subject to different populational densities of Meloidogyne javanica. The design employed was one of randomized blocks, in an incomplete factorial scheme, using the Box Central Compound (BCC) matrix with five nematode populational densities (PD) (0; 5815; 20000; 34184; and 40000 eggs per plant) and five salicylic acid doses (0.0; 0.29; 1.0; 1.71; and 2.0 mM), with four repetitions and two plants per experimental patch. The gas exchanges, fluorescence, and chlorophyll levels were evaluated 45 days after the transplant and soil infestation. The data were submitted for analysis of variance through the F test and, in the significance cases, the polynomial regression analysis was performed. For stomatal conductance, a greater reduction was seen at the PD of 21755 eggs per plant, a fact that might have decreased the liquid assimilation of CO2 and the efficiency of carboxylation. The salicylic acid (SA) affected the CO2 liquid assimilation and the efficiency of carboxylation. The infestation of M. javanica in tomato plants negatively affected the gas exchange and the chlorophyll levels because the SA application did not mitigate the negative effect thereof.
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| first_indexed | 2024-12-13T01:02:35Z |
| format | Article |
| id | doaj.art-224997d94d7a474f9969fb85c700af34 |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-12-13T01:02:35Z |
| publishDate | 2020-12-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-224997d94d7a474f9969fb85c700af342022-12-22T00:04:39ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632020-12-01366Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acidFrancisco Romário Andrade Figueiredo0Jackson Silva Nóbrega1João Everthon da Silva Ribeiro2Toshik Iarley da Silva3Manoel Bandeira de Albuquerque4Guilherme Silva de Podestá5Luciana Cordeiro do Nascimento6Élida Barbosa Corrêa7Universidade Federal Rural do Semi-ÁridoUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal de ViçosaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da Paraíba Nematodes of the genus Meloidogyne spp. are one of the tomato culture’s main pathogens. According to their soil infestation level, physiological changes may occur. Consequently, it is extremely important to employ given products to minimize their effect. A feasible option is the salicylic acid, a phytohormone that can induce into resistance due to its ability to increase the production level of some pathogenicity proteins. Therefore, the purpose hereof was to assess the effect of salicylic acid on the physiology of tomato plants subject to different populational densities of Meloidogyne javanica. The design employed was one of randomized blocks, in an incomplete factorial scheme, using the Box Central Compound (BCC) matrix with five nematode populational densities (PD) (0; 5815; 20000; 34184; and 40000 eggs per plant) and five salicylic acid doses (0.0; 0.29; 1.0; 1.71; and 2.0 mM), with four repetitions and two plants per experimental patch. The gas exchanges, fluorescence, and chlorophyll levels were evaluated 45 days after the transplant and soil infestation. The data were submitted for analysis of variance through the F test and, in the significance cases, the polynomial regression analysis was performed. For stomatal conductance, a greater reduction was seen at the PD of 21755 eggs per plant, a fact that might have decreased the liquid assimilation of CO2 and the efficiency of carboxylation. The salicylic acid (SA) affected the CO2 liquid assimilation and the efficiency of carboxylation. The infestation of M. javanica in tomato plants negatively affected the gas exchange and the chlorophyll levels because the SA application did not mitigate the negative effect thereof. https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/48174Meloidogyne javanica.Tomato plant.Gas exchangeChlorophyll. |
| spellingShingle | Francisco Romário Andrade Figueiredo Jackson Silva Nóbrega João Everthon da Silva Ribeiro Toshik Iarley da Silva Manoel Bandeira de Albuquerque Guilherme Silva de Podestá Luciana Cordeiro do Nascimento Élida Barbosa Corrêa Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid Bioscience Journal Meloidogyne javanica. Tomato plant. Gas exchange Chlorophyll. |
| title | Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid |
| title_full | Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid |
| title_fullStr | Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid |
| title_full_unstemmed | Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid |
| title_short | Physiological changes in Solanum lycopersicum L. in the presence of root-knot nematodes and salicylic acid |
| title_sort | physiological changes in solanum lycopersicum l in the presence of root knot nematodes and salicylic acid |
| topic | Meloidogyne javanica. Tomato plant. Gas exchange Chlorophyll. |
| url | https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/48174 |
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