Pochonia chlamydosporia applied via seed treatment for nematode control in two soil types

Nasu, Érica das Graças Carvalho; Amora, Deisy Xavier; Monteiro, Thalita Suelen Avelar; Alves, Paula Soares; Podestá, Guilherme Silva de; Ferreira, F.A.; Freitas, Leandro Grassi de

doi:10.1016/j.cropro.2018.08.010

Cited by 16 publications

(4 citation statements)

References 19 publications

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“…The fungus M. chlamydosporia was most effective in directly parasitizing rhizosphere‐exposed RKN females and eggs, thereby reducing root infection and gall formation in various crops (Kerry, 2000). Soil colonization of the fungus is usually higher in sandy than in clay‐type soils (Nasu et al., 2018). In our trials, the number of nematode eggs on tomato roots was substantially reduced by the fungus in 90/10 soil.…”

Section: Discussionmentioning

confidence: 99%

Performance of biological and chemical nematicides in different soils to control Meloidogyne incognita in tomato plants

Loffredo,

Edwards,

Ploeg

et al. 2023

Journal of Phytopathology

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Three fluorinated, one carbamate nematicide, as well as two biological control agents were tested in greenhouse trials to determine their efficacy against Meloidogyne incognita on tomato plants in three different soils. Each soil was treated with one of the following chemical nematicides at the labelled rate: fluensulfone, fluopyram, fluazaindolizine, and oxamyl. The biocontrol agents used were Metacordyceps chlamydosporia and Pasteuria penetrans. In one additional treatment, a combination of the biocontrol agents was applied. After 60 days, root‐knot nematode population data, tomato plant growth, and root galling were assessed. Of the chemical nematicide treatments, fluazaindolizine had the strongest effect on M. incognita J2 in soil, with a 99% reduction relative to the untreated control. More than 99% reduction in the number of eggs per root system was achieved by all three fluorinated nematicides. The strongest effect on M. incognita J2 in soil by a biological control agent was in a combined M. chlamydosporia + P. penetrans treatment that resulted in an 87% reduction. This combined treatment was also the most effective on the eggs per root system, reducing the number of eggs by 69% relative to the untreated control. The different soils affected the efficacy of the biocontrol agents more than the efficacy of the fluorinated nematicides. For example, the percentage reduction in M. incognita J2 by the biocontrol treatments ranged from 40% to 65% for the three soils. For the fluorinated nematicides this range was 96% to 97%. These trials demonstrate the influence of the growth substrate on the efficacy of the biocontrol treatments. Overall, the tested biological control agents did not match the novel nematicides' early protection of tomato transplants.

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Section: Discussionmentioning

confidence: 99%

Performance of biological and chemical nematicides in different soils to control Meloidogyne incognita in tomato plants

Loffredo,

Edwards,

Ploeg

et al. 2023

Journal of Phytopathology

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“…The control of M. incognita on tomato was more in peaty sand (59%) than in loamy sand (51%) and sandy soil (39%) the fungus survived in potted tomato plants about 8 weeks (De . Efficient percolation and proliferation of P. chlamydosporia in both sandy and clayey soil up to 50 cm depth when it was applied through seed dressing against M. incognita population (Nasu et al, 2018). This fungus may grow in variety of soil types up to a depth of 6 cm (Sindhu et al, 2019, Swarnakumari et al, 2020…”

Section: Colonization In Soilmentioning

confidence: 99%

Bionomics and the role of antinemic metabolites of the nematophagous fungus, Pochonia chlamydosporia in suppressing phytonematodes - A Comprehensive Review

et al. 2024

Preprint

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Pochonia chlamydosporia, a nematophagous fungus is well-known for its biocontrol potential against plant-parasitic nematodes. This review paper documented colonization patterns of P. chlamydosporia in soil, roots, and the rhizosphere, highlighting the impact of various abiotic factors on its establishment. The biocontrol efficacy of P. chlamydosporia against nematodes, including Meloidogyne spp., Globodera spp., and Heterodera spp., is extensively discussed, covering its mode of action and application methods. Additionally, the review delves into the enzyme secretion, endophytic nature, and secondary metabolites produced by P. chlamydosporia, shedding light on their roles in nematode control and plant growth promotion. P. chlamydosporia application triggers the activation of plant defence mechanisms is also elucidated, emphasizing its potential to induce a robust defence response in host plants. Overall, this comprehensive review consolidates the current knowledge on P. chlamydosporia, offering valuable insights for researchers, practitioners, and policymakers involved in sustainable nematode management strategies.

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“…can produce various enzymes, such as chitinase, lipase, and protease, which have nematicidal effects on P. brachyurus [133,134]. The use of bacteria and fungi as a biocontrol management strategy has led to the development of commercial products, such as Compost-Aid™, Nem-Out™ [136], and Rhizotec ® [139]. Although it is evident that research is now focused on the identification of microorganisms with anti-nematode properties, the use of such products is still limited [78].…”

Section: Biological Controlmentioning

confidence: 99%

South Africa: An Important Soybean Producer in Sub-Saharan Africa and the Quest for Managing Nematode Pests of the Crop

et al. 2020

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With an increase in the global population, a protein-rich crop like soybean can help manage food insecurity in sub-Saharan Africa (SSA). The expansion of soybean production in recent years lead to increased land requirements for growing the crop and the increased risk of exposing this valuable crop to various pests and diseases. Of these pests, plant-parasitic nematodes (PPN), especially Meloidogyne and Pratylenchus spp., are of great concern. The increase in the population densities of these nematodes can cause significant damage to soybean. Furthermore, the use of crop rotation and cultivars (cvs.) with genetic resistance traits might not be effective for Meloidogyne and Pratylenchus control. This review builds on a previous study and focuses on the current nematode threat facing local soybean production, while probing into possible biological control options that still need to be studied in more detail. As soybean is produced on a global scale, the information generated by local and international researchers is needed. This will address the problem of the current global food demand, which is a matter of pressing importance for developing countries, such as those in sub-Saharan Africa.

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Pochonia chlamydosporia applied via seed treatment for nematode control in two soil types

Cited by 16 publications

References 19 publications

Performance of biological and chemical nematicides in different soils to control Meloidogyne incognita in tomato plants

Performance of biological and chemical nematicides in different soils to control Meloidogyne incognita in tomato plants

Bionomics and the role of antinemic metabolites of the nematophagous fungus, Pochonia chlamydosporia in suppressing phytonematodes - A Comprehensive Review

South Africa: An Important Soybean Producer in Sub-Saharan Africa and the Quest for Managing Nematode Pests of the Crop

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