Response of lettuce cultivars to Meloidogyne javanica and Meloidogyne incognita
            race 1 and 2

Correia, Érika Cristina Souza da Silva; Silva, Norberto da; Costa, Marylia Gabriella Silva; Wilcken, Sílvia Renata Siciliano

doi:10.5935/1806-6690.20190012

Cited by 4 publications

(3 citation statements)

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“…In particular, Meloidogyne incognita (Kofoid and White, 1919;Chitwood, 1949) is recognized as one of the most destructive species with wide host ranges (Avato et al, 2013;Jones et al, 2013). Despite the scarce related literature, lettuce (Lactuca sativa) is one of the host species with important yield losses recorded in different regions (Koenning et al, 1999;Correia et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Biodisinfestation With Agricultural By-Products Developed Long-Term Suppressive Soils Against Meloidogyne incognita in Lettuce Crop

Gandariasbeitia

López-Pérez²,

Berdaitz

et al. 2021

Front. Sustain. Food Syst.

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Soil biodisinfestation is the process generated after the incorporation of organic amendments followed by a plastic cover to control soilborne diseases. Among organic amendments, the use of agricultural by-products could be an interesting alternative as it promotes circular economy. In this study, beer bagasse and defatted rapeseed cake together with fresh cow manure were incorporated into the soil (1.5, 0.5, and 20 kg/m2, fresh weight, respectively) to assess their capacity to reduce disease incidence caused by the root-knot nematode Meloidogyne incognita in protected lettuce crops and develop suppressive soils. The trial was conducted in a commercial greenhouse for 7 weeks during which temperature was continuously recorded at three different soil depths (15, 30, and 45 cm). Short- and long-term effects were assessed: before treatment, after treatment, after first crop post-treatment and one year post-treatment. Disease incidence and changes in nematode community structure were analyzed along with microbiological properties and general physicochemical parameters. After biodisinfestation, microbiological activity significantly increased in the treated soils and changes in the nematode community structure were detected in detriment of M. incognita and other plant-parasitic nematodes. These effects were more apparent after the first crop post-treatment than right after biodisinfestation. In the first crop after biodisinfestation, lettuce yield increased in the treated plots and root galling indices were significantly lower. One year after treatment, differences between treatments could be observed in the incidence of the damage caused by M. incognita that remained lower in the treated plots. In this trial, the addition of beer bagasse and rapeseed cake along with fresh manure in biodisinfestation treatment demonstrated nematicidal effects against M. incognita. Moreover, we suggest that the compounds released during the degradation of these by-products and the sub-lethal temperatures achieved in this trial during biodisinfestation (<42°C) were the key to develop suppressive soils in the long-term.

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Section: Introductionmentioning

confidence: 99%

Biodisinfestation With Agricultural By-Products Developed Long-Term Suppressive Soils Against Meloidogyne incognita in Lettuce Crop

Gandariasbeitia

López-Pérez²,

Berdaitz

et al. 2021

Front. Sustain. Food Syst.

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“…While Salinas 88 performed as highly resistant and resistant to six nematode isolates, Grand Rapids was only resistant to four of them. These lettuce cultivars were previously reported as resistant to Meloidogyne incognita and M. javanica from Brazil [ 15 , 17 , 18 , 20 , 21 , 22 ]. Moreover, the Grand Rapids cultivar was reported as resistant to Meloidogyne enterolobii [ 29 ].…”

Section: Discussionmentioning

confidence: 99%

“…Characterization of the level of plant germplasm resistance to RKN populations or isolates provides a broad view of the possible response in field conditions since the result of the plant–nematode interaction is dependent on the genetic background. Some studies have found that certain lettuce cultivars are resistant to M. incognita and M. javanica [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ] populations and/or races, as well as bean cultivars [ 23 , 24 , 25 , 26 , 27 ]. So, in this study, some experiments were conducted to determine the level of resistance of three lettuce and five bean cultivars against eleven RKN isolates from Spain in pot experiments, and against an M. incognita isolate in a plastic greenhouse.…”

Section: Introductionmentioning

confidence: 99%

Host Suitability of Lettuce and Bean Germplasm for Meloidogyne incognita and M. javanica Isolates from Spain

Giné,

Sanz-Prieto,

Gomes

et al. 2023

Plants

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Meloidogyne spp. are an important threat to horticulture and cause substantial yield losses. Plant resistance is an alternative control method for chemical nematicides. This study highlights the host suitability of the lettuces cultivars Grand Rapids and Salinas 88 and the beans cultivars Aporé, Cornell 49242, Macarrão Atibaia and Ouro Negro to four Meloidogyne incognita and seven M. javanica isolates from Spain in a pot experiment. Moreover, the response of these cultivars to increasing M. incognita densities (Pi) was assessed in a plastic greenhouse. The lettuce cultivar Regina 71 and the bean cultivar Bolinha were included as susceptible standards for comparison. It was found that Grand Rapids and Salinas 88 lettuces were resistant to the most nematode isolates in the pot experiment but were classified as slightly and moderately resistant, respectively, in the plastic greenhouse at increasing Pi. Regarding the beans, Aporé was resistant to the majority of the Meloidogyne isolates whereas Macarrão Atibaia and Ouro Negro were slightly resistant and Cornell 49242 was susceptible in the pot experiment. In the plastic greenhouse, Aporé was the only cultivar able to effectively suppress the nematode reproduction irrespective of Pi, while Ouro Negro became less resistant as Pi increased. These results play an important role in enhancing the effective and ecofriendly Meloidogyne management strategies.

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Silicon promotes the control of Meloidogyne incognita in lettuce by increasing ascorbic acid and phenolic compounds

et al. 2022

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The use of silicon (Si) has a physical barrier effect on plant tissues, decreasing nematode infection in different crops. Notwithstanding, research on lettuce crop is lacking, especially regarding the chemical mechanisms of action of this bene cial element. Therefore, this study evaluates the effect of Si supply on lettuce plants infested with 0, 6000, and 12000 eggs and second stage juveniles of M. incognita, both in the absence and in the presence of Si (2 mM) in the nutrient solution. Silicon increases phenolic compounds and ascorbic acid, reducing the M. incognita population and decreasing oxidative stress. It also increases chlorophyll index and the quantum e ciency of the photosystem II (FV/FM), favoring the growth and production of lettuce plants. The use of Si decreased the number of nematodes and affected their reproduction, decreasing the number of eggs and galls in the roots of lettuce plants, being yet another sustainable alternative for the control of M. incognita. The Si bene t would be due to the combined effect of the physical barrier and the chemical action from the increase in phenolic compounds and ascorbic acid in plant tissues, improving the physiological aspects of plants. Key MessagesThe Lactuca sativa is a crop susceptible to the attack of root-knot nematode.The Si strengthens the defense system of this plant against incognita.Si has an effect on increasing the rmness of tissues acting as a physical barrier in control of incognita.Si supply decreases the reproduction rate of incognita. The Si a sustainable alternative, in control of root-knot nematode since its use can reduce applications with nematicides.

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Response of lettuce cultivars to Meloidogyne javanica and Meloidogyne incognita race 1 and 2

Cited by 4 publications

References 0 publications

Biodisinfestation With Agricultural By-Products Developed Long-Term Suppressive Soils Against Meloidogyne incognita in Lettuce Crop

Biodisinfestation With Agricultural By-Products Developed Long-Term Suppressive Soils Against Meloidogyne incognita in Lettuce Crop

Host Suitability of Lettuce and Bean Germplasm for Meloidogyne incognita and M. javanica Isolates from Spain

Silicon promotes the control of Meloidogyne incognita in lettuce by increasing ascorbic acid and phenolic compounds

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