Atração e penetração de Meloidogyne javanica e Heterodera glycines em raízes excisadas de soja

Campos, H. D.; Campos, Vicente Paulo; Silva, Juliana Resende Campos; Silva, Luiz Henrique Carregal Pereira da; Costa, Lilian Simara Abreu Soares; Terra, Willian César

doi:10.1590/s0103-84782011000900002

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…The Foc fungus and M. javanica nematode are phytopathogens that penetrate young roots in the ring region and elongation zone of plants (CAMPOS et al, 2011;BRANDES, 1919). The penetration of Foc into banana root system occurs through mechanical action of hyphae and/or injuries caused mainly by nematodes, such as the M. javanica.…”

Section: Resultsmentioning

confidence: 99%

REACTION OF BANANA CULTIVARS TO THE Meloidogyne javanica X Fusarium oxysporum f. sp. cubense COMPLEX

et al. 2018

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The interaction Fusarium oxysporum f. sp. cubense (Foc) x nematode and the genetic variability of Foc are the main problems with potential to affect the use of resistant varieties in the management of the Panama disease. The objective of this work was to evaluate the interaction between Foc and Meloidogyne javanica on the banana of the Prata Anã, Grande Naine and BRS Princesa cultivars. The experiment was conducted in a randomized block design, with six treatments and ten replications, which differed in the inoculation time of each pathogen. Simultaneous inoculation with Foc and M. javanica, inoculation with Foc one week before inoculation with M. javanica, and inoculation with M. javanica one week before inoculation with Foc. In addition to the controls, Foc isolated, M. javanica isolated, and cultivars without the pathogens. The seedlings were transplanted in 3-liter pots with sterile soil infested with 40 grams of Foc inoculum at the concentration of 1x10 6 CFU/gram and 1000 eggs and J2 of M. javanica. At the end of 56 days, the treatments with 'Grande Naine' presented the highest reproduction factors of M. javanica. In the 'Prata Anã' no interaction was observed between Foc x M. javanica. The treatments with simultaneous inoculation of the two pathogens, and with Foc a week before, in the 'BRS Princesa', presented the highest external disease indices (DI), which promoted the highest AUDPC. The highest internal DI were observed in the treatments Foc+Mj+Grande Naine, Foc+Mj+BRS Princesa, Mj+Grande Naine+Foc and Foc+BRS Princesa+Mj. The simultaneous presence of M. javanica and Foc increases the severity of the Panama disease in Grande Naine and BRS Princesa cultivars. Keywords: Musa spp.. Fusarium wilt. Root-knot nematodes. Interaction. Panama disease. REAÇÃO DE CULTIVARES DE BANANEIRA AO COMPLEXO Meloidogyne javanica X Fusarium oxysporum f. sp. cubense RESUMO -A interação Fusarium oxysporum f. sp. cubense (Foc) x nematoide e a variabilidade genética de Foc são os principais problemas com potencial de afetar o uso de variedades resistentes no manejo do mal-do-Panamá. O objetivo do trabalho foi avaliar a interação entre Foc e Meloidogyne javanica sobre as cultivares de bananeiras, Prata Anã, Grande Naine e BRS Princesa. O experimento foi conduzido em DBC, com seis tratamentos e dez repetições, os quais se diferenciaram no tempo de inoculação de cada patógeno. Inoculação simultânea de Foc e M. javanica, inoculação de Foc uma semana antes de M. javanica e inoculação de M. javanica uma semana antes de Foc. Além dos controles, Foc isolado, M. javanica isolado e cultivares sem patógenos. As mudas foram transplantadas em vasos de três litros com solo estéril infestado com 40 gramas de inóculo de Foc na concentração de 1x106UFC/grama e 1000 ovos e J2 de M. javanica. Ao final de 56 dias, os tratamentos em 'Grande Naine' apresentaram os maiores fatores de reprodução de M. javanica. Em 'Prata Anã' não foi observado interação entre Foc x M. javanica. Os tratamentos com inoculação simultânea dos dois patógenos e com Foc uma ...

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Section: Resultsmentioning

confidence: 99%

REACTION OF BANANA CULTIVARS TO THE Meloidogyne javanica X Fusarium oxysporum f. sp. cubense COMPLEX

et al. 2018

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“…After the treatment of seeds with the respective products and possible combinations (Table 1), two seeds were put in each recipient (plastic cups) with volume of 100mL of substrate (dampened thick sand) and kept in a temperature of 24 ± 3º C with soil humidity between 65 -75%, under greenhouse conditions. After 48h from sowing (time enough for root emission), the sand of each cup was infested with 500 specimens of P. brachyurus, following the methodology proposed by Campos et al (2011). After 5, 10 and 15 days after inoculation, the seedlings and plants were carefully removed from the recipients, pouring water in their edges.…”

Section: Evaluation Of P Brachyurus Specimens Penetration During Time After Seed Treatmentmentioning

confidence: 99%

“…Phytoparasitic nematodes may infect the root from the seedling stage, or, right at the beginning of seed germination (CAMPOS et al, 2011). Thus, the chemical control by seed treatments can reduce the damages caused by these nematodes in the initial stages of development of the plant or provide exhaust to these pathogens.…”

Section: Introductionmentioning

confidence: 99%

Impact of Chemical Compounds Interactions on Seed Treatments to Control the Soybean Nematode 𝘗𝘳𝘢𝘵𝘺𝘭𝘦𝘯𝘤𝘩𝘶𝘴 𝘣𝘳𝘢𝘤𝘩𝘺𝘶𝘳𝘶𝘴

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Oliveira

et al. 2021

BJA

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Pratylenchus brachyurus se destaca entre as espécies de fitonematoides que mais causam prejuízos na cultura da soja no Brasil. O trabalho teve como objetivo avaliar as interações de diferentes grupos químicos no tratamento de sementes para o controle de P.brachyurus. Os experimentos foram conduzidos em casa de vegetação sendo o delineamento inteiramente casualizado, composto por nove tratamentos e seis repetições, sendo Produto A = tiofanato metílico; Produto B = piraclostrobina; Produto C = fipronil; Produto formulado A+B+C = piraclostrobina + tiofanato metílico + fipronil e Padrão controle = abamectina. As interações químicas foram: Produto A+B = tiofanato metílico + piraclostrobina; Produto A+C = tiofanato metílico + fipronil; Produto B+C = piraclostrobina + fipronil. Tratamentos com sementes sem aplicação de produtos foram mantidos como controle. Todos os produtos combinados apresentaram efeito antagônico, porem o composto fipronil isolado ou combinado com o composto tiofanato metílico se destacou no controle de P. brachyurus.

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“…Plants are affected by biotic and abiotic factors, which leads to reduced productivity levels. Among biotic factors, diseases caused by phytoparasitic nematodes compromise root functions in soil, as water and nutrients uptake and plant support (CAMPOS et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Anthelmintic activity of plant aqueous extracts against Panagrellus redivivus in vitro

et al. 2019

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Control of phytonematodes is very hard and requires a combination of techniques to succeed. Alternative control through plant extracts may result in the discovery of nematicide substances. Research aimed at evaluating the effect of 33 plants submitted to aqueous extraction against Panagrellus redivivus in vitro. Concentrations were prepared at 1.25, 2.5, 5, 10, and 20%. Monitoring happened at 0, 6, 12, 24 and 30 hours after preparation. Counting considered dead nematodes subtracted from alive ones. Juveniles were also counted, and extract efficiency was expressed in percentage of control or stimuli. Data were submitted to variance analysis. Significant results got with the Scott-Knott test (5%), and multiple linear regression analysis. Extracts were observed acting as controllers, but also as stimulators to nematode reproduction. The best controlling performance was set by Carica papaya (-66% at 20%; -33.7% at 10%), Euphorbia milii (-37% at 20%), Psychotria carthagenensis (-25.5% at 2.5%), Clusia variegate (-22% at 20%), and Zamioculcas zamiifolia (-21.5% at 20%). Stimulator extracts were Mentha villosa at 10% (+148%) and 2.5% (+131.5%), followed by Aloe vera (+123% at 5%), Schinus molle (+112.5% at 10%), Schefflera arboricola (+93.5% at 5%), C. variegate (+89% at 5%), and S. molle (+88% at 5%). Some extracts kept population stable throughout the experiment, presenting lower control indexes. Besides an additive effect, there was an individual influence of concentration or time on control.

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Atração e penetração de Meloidogyne javanica e Heterodera glycines em raízes excisadas de soja

Cited by 5 publications

References 3 publications

REACTION OF BANANA CULTIVARS TO THE Meloidogyne javanica X Fusarium oxysporum f. sp. cubense COMPLEX

REACTION OF BANANA CULTIVARS TO THE Meloidogyne javanica X Fusarium oxysporum f. sp. cubense COMPLEX

Impact of Chemical Compounds Interactions on Seed Treatments to Control the Soybean Nematode 𝘗𝘳𝘢𝘵𝘺𝘭𝘦𝘯𝘤𝘩𝘶𝘴 𝘣𝘳𝘢𝘤𝘩𝘺𝘶𝘳𝘶𝘴

Anthelmintic activity of plant aqueous extracts against Panagrellus redivivus in vitro

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